Flood Mitigation Assistance (FMA) Program€¦ · Flood Mitigation Assistance (FMA) Program City of Virginia Beach, Virginia Project application for Windsor Woods Flood Control

Virginia Department of Emergency Management Project Grant Application

17

Flood Mitigation Assistance (FMA) Program City of Virginia Beach, Virginia Project application for Windsor Woods Flood Control Project 3- Kings Point Pipe Improvements


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Table of Contents Application structured by sections. Section 1- VDEM Application Section 2- Damage Documentation and Maps Section 3- Project Support Analysis Documentation Section 4- Benefit Cost Analysis Section 5- Capital Improvement Project Guarantee Section 6-Applicant Signature Pages


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Section I. Applicant Information 1. Application Title: Virginia Beach 2016 Flood Mitigation Assistance Grant Project

2. Name of Applicant: City of Virginia Beach

3. Type of Applicant: Local Government If Other, please specify:

4. Federal Tax Number: 54-0722061

5. State Tax Number:69-0530493

6. Federal Employer Identification Number or Tribal Identification Number: 54-0722061

7. DUNS Number: : 074736299

8. County(ies): None

9. FIPS Code: 810 CID Number: 515531

10. Is this a Small, Impoverished Community? No

11. State Legislative Districts: House: 2 Senate: 8

12. Congressional Districts: 2nd Congressional District

13. Enter community profile information narrative: Virginia Beach is an independent city located in the Hampton Roads metropolitan area of Virginia, on the Atlantic Ocean at the mouth of the Chesapeake Bay. Virginia Beach is the easternmost of the Seven Cities of Hampton Roads that make up the core of the Virginia Beach-Norfolk-Newport News, Virginia—North Carolina Metropolitan Statistical Area. The larger city is divided into seven boroughs: Bayside, Blackwater, Kempsville, Lynnhaven, Princess Anne, Pungo, and Virginia Beach. According to the United States Census Bureau, the city has a total area of 497.3 square miles (1,288 km2), 248.3 square miles (643 km2) of which is land and 249.0 square miles (645 km2 or 50.07 percent) of which is water. The average elevation is 12 feet (3.7 m) above sea level. A major portion of the city drains to the Chesapeake Bay by way of the Lynnhaven River and its tributaries. As of the census of 2015, there were 452,745 people and 164,089 households within the city. The population density was 1,823.38 people per square mile (661.3/km²). The racial makeup of the city was 68.6 percent White (68.6 percent non-Hispanic White), 20 percent African American, 0.50 percent Native American, 6.8 percent Asian, 0.20 percent Pacific Islander 4.0 percent from two or more races. Finally, 7.7 percent of the populations were Hispanic or Latino of any race. A moderate climate prevails throughout the region, with an approximate annual average of 60 degrees Fahrenheit, 45 inches of rainfall, and 7.3 inches of snow.


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Section II. Contact Information

1. Point of Contact

First Name: Erin Last Name: Sutton

Title: Deputy Emergency Management Coordinator Agency/Organization: City of Virginia Beach

Address: 2412 N. Landing Road

City: Virginia Beach State: VA Zip+4: 23456

Phone: 757-385-1076 Fax: 757-963-5822 Email: [email protected]

2. Alternate Point of Contact

First Name: Kim Last Name: Tempesco

Title: Emergency Planner Agency/Organization: City of Virginia Beach

Address: 2412 N. Landing Road


Phone: 757-385-8585 Fax: 757-963-5822 Email: [email protected]

3. Designated Agent

First Name: David L. Last Name: Hansen

Title: City Manager Agency/Organization: City of Virginia Beach

Address: 2401 Courthouse Drive


Section III. Mitigation Plan Information 1. Does your Community have a current FEMA approved multi-hazard mitigation plan? Yes,

Virginia Beach has a current FEMA approved multi-hazard mitigation plan.

a. If Yes, provide the FEMA approval date: September, 2016

b. If No, has the plan been submitted for review? N/A

c. If the plan has been submitted for review, which agency is currently reviewing the plan? N/A

d. Please provide the date the plan was submitted for review: N/A

2. What is the name of the plan? Virginia Beach is included in the Hampton Roads Regional Hazard Mitigation Plan A.

3. What is the type of plan? This plan is a Multi-jurisdictional Regional Hazard Mitigation Plan.

4. Describe how the proposed activity relates to or is consistent with the FEMA-approved mitigation plan: Property protection is listed in the approved plan as a mitigation strategy. The methods listed in this strategy include flood risk reduction in special flood hazard areas and protection of flood prone structures within the city.


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5. Do you have other mitigation plans that have been adopted by your community? No, this is the only mitigation plan adopted by the City of Virginia Beach.

6. If Yes, provide the plan name and plan type of each additional mitigation plan adopted by your community. N/A

7. Additional comments:

Section IV. Mitigation Activity Information 1. What type of activity are you proposing?

The City is proposing a flood control project for the design, acquisition, and construction of storm water and roadway improvements necessary to alleviate wide spread area flooding due to moderate rain events, and during periods of significant high tides from the Lynnhaven River in the Windsor Woods/Presidential/Rosemont Road area and adjoining neighborhoods of Princess Anne Plaza. The western side of the project area discharges to Lake Windsor, Thalia Creek and then to the Western Branch of the Lynnhaven River. The eastern side of the project area discharges to London Bridge Creek and then to the Eastern Branch of the Lynnhaven River. This project includes 1415 Linear feet of pipe improvements along Old Forge Road to Red Lion Road that outfalls to Presidential Canal. See figure A-2 in the application support analysis done by Michael Baker in conjunction with this project.

2. Will the project involve construction? The FF20-16A and FF20-16B can be accessed on the VDEM website: http://www.vaemergency.com/grants/grantDocs/ACFE527.xls\ Yes, this program will involve construction. See federal documents section for appropriate executed documentation.


Section V. Hazard Information

A. Problem Description

1. Please describe the problem to be mitigated. Include the geographic area in your description.

The Windsor Woods Neighborhood and drainage area is comprised of 1045 acres containing a total of 3492 residential properties with an estimated assessed value of $1,022,862,200. This neighborhood consists of lower to moderate income families with most of the homes built in the 1960s which are predominately slab on grade construction at or below base flood elevation for the area. The drainage system in place in the neighborhood is undersized and inefficient for the amount of drainage in the area causing excessive street and residential flooding. During back to back storms in 2016 (Julia and Matthew) 455 homes reported flood damages ranging from minor to destroyed with the water levels in these homes ranging from 6 inches to 18 inches. This project seeks to mitigate the flooding of at least 292 of these homes.

2. Please enter the Latitude and Longitude coordinates for the project area.

Latitude: 36.831341

Longitude: -76.108754


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B. Hazard History

1. Indicate all the hazards to be mitigated (more than one can be selected):

Biological Chemical Civil Unrest Coastal Storm

Crop Losses Dam/Levee Break Drought Earthquake

Fire Fishing Losses Flood Freezing

Human Cause Hurricane Land Subsidence Mud/Landslide

Nuclear Other Severe Ice Storm Severe Storm(s)

Snow Special Events Terrorist Tornado

Toxic Substances Tropical Cyclones Tsunami Typhoon

Volcano Windstorms

If Other, please explain:

2. Provide a detailed narrative of history of damages in the project area from past events, including direct and indirect costs. Include Presidentially declared disasters, as well as events that did not result in a declaration. Include names of storms if applicable. Direct costs should include damages to structures and infrastructure in the project area as a result of the hazard. Indirect costs should include the cost to the local government to respond to victims of the hazard in the project area, any interruption to local businesses, and losses of public services. Attach any supporting documents.

September 18, 2003, Hurricane Isabel: Made landfall near Ocracoke, North Carolina.

The center passed west of Emporia and Richmond. Fastest 1-minute wind speed was NE 54 mph with gusts to 75 mph at Norfolk Naval Air Station; NE 61 mph with gusts to 74 mph at the South Island Chesapeake Bay Bridge-Tunnel. Highest tide at Sewells Point was 7.9 feet above MLLW, which was a 5 foot surge. Significant beach erosion was reported. Numerous trees and power lines were downed over a wide area, with over two million households without power in Virginia. Virginia damage was over $625 million, and there were 36 deaths in Virginia directly or indirectly related to the storm.

August 3, 2004, Hurricane Alex: Made its closest approach to land on August 3, 2004, with its center located about 9 nm southeast of Cape Hatteras/Outer Banks, North Carolina as a category 1. Alex produced locally heavy rainfall across portions of southeast Virginia, but little in the way of damage or flooding.

August 14, 2004, Hurricane Charley: Made a second landfall near Cape Romain, South Carolina as a weakening category 1, after devastating portions of central and southwest Florida. Charley brought locally heavy rainfall and strong winds to much of southeast Virginia, especially near the coast. A wind gust of 72 mph was recorded at the Chesapeake Light buoy. In the United States, 10 deaths and $14 billion in damage resulted from Charley.

August 29, 2004, Hurricane Gaston: Made landfall as a category 1 near Awendaw, South Carolina, on August 29, 2004. It weakened as it lifted northward through North Carolina, then northeastward across southeast Virginia on August 30. Gaston produced a swath of 5–14 inch rains extending from Lunenburg and Mecklenburg Counties


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northeast into Caroline and Essex Counties. The heaviest rainfall, centered on the Richmond metro area, produced a major flash flood that killed 8 people. Five of these deaths resulted from people driving into flooded roadways. A total of 13 tornadoes were observed in central and eastern Virginia, all producing F0 damage. Total damage is estimated at $130 million.

September 8, 2004, Hurricane Frances: Made landfall over east central Florida as a category 2 hurricane. It then moved northeast into the northern Gulf of Mexico, eventually turning north to make a second landfall in the panhandle of Florida, after which it weakened into a tropical depression. It tracked through western Virginia, then northeast and off the shore of the mid-Atlantic coast. A total of six tornadoes were observed in central and eastern Virginia, the strongest of which produced F1 damage.

September 17, 2004, Hurricane Ivan: Made landfall near the Florida/Alabama border

as a category 3 hurricane. It weakened to a tropical depression and moved northeast,

tracking along the Appalachian Mountains through western Virginia, then northeast

and off the shore of the mid-Atlantic coast. A total of 40 tornadoes were produced in

Virginia, most in central and northern Virginia. This was a record single day outbreak

for Virginia, and exceeded the previous annual tornado record of 31. Most of these

tornadoes were F0 or F1 in intensity, although 10 F2 tornadoes and one F3 tornado

touched down in south central, west central, and northern Virginia.

September 28, 2004, Hurricane Jeanne: The remnants of Hurricane Jeanne, in the form

of a tropical depression, moved through the vicinities of Greenville, South Carolina;

Roanoke, Virginia; and Washington, DC, and finally to the New Jersey coast on

Tuesday, September 28. Maximum sustained wind speeds ranged from 25–30 mph near

the storm's center. The primary impact on the Commonwealth was flooding, although

one F1 tornado touched down in Pittsylvania County. The heaviest rainfall occurred

from the New River Valley to the Southern Shenandoah Valley. Rainfall in this region

ranged from three to seven inches, with the highest amounts falling in Patrick, eastern

Floyd, eastern Montgomery, Giles, Roanoke, Botetourt, and Rockbridge Counties.

September 1, 2006, Tropical Storm Ernesto: The remnants of Tropical Storm Ernesto

interacted with an unusually strong high pressure area over New England to generate

strong winds, heavy rainfall, and storm surge-related tidal flooding and damage. Five to

eight inch rainfall amounts were common across central and eastern Virginia. This

rainfall caused flooding in many areas, although no substantial river flooding resulted


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from the heavy rain. Wind gusts of 60–70 mph occurred on the Eastern Shore of

Virginia, as well as areas adjacent to the Chesapeake Bay from Yorktown northward.

Tides were particularly high from communities adjacent to the York River, northward

through the Rappahannock River to tidal portions of the Potomac River. Tides of four

to five feet above normal, combined with six to eight foot waves, caused significant

damage to homes, piers, bulkheads, boats, and marinas across portions of the Virginia

Peninsula and Middle Peninsula near the Chesapeake Bay and adjacent tributaries.

Similar damage also occurred in Chincoteague and Wachapreague on the Virginia

Eastern Shore. At some locations on the Middle Peninsula, Northern Neck, and Eastern

Shore, the tidal flooding and damage rivaled that from Hurricane Isabel in 2003. Power

outages were widespread across Virginia's Northern Neck and Middle Peninsula.

December 9, 2009, Severe storms and flooding associated with Tropical Depression Ida

and a severe nor’easter: On November 20, 2009, Governor Timothy M. Kaine requested a major disaster declaration due to severe weather caused by the remnants of

Tropical Depression Ida and a coastal nor’easter that began on November 11, 2009. The

governor requested a declaration for Public Assistance for five counties and seven

independent cities, including Virginia Beach, Virginia. President Obama declared that

a major disaster existed in the Commonwealth of Virginia on December 9, 2009. The

cumulative initial damage assessment report estimated the damages to approach $5.6

million dollars for the city.

August 27, 2011: Hurricane Irene was rated a Category 1 hurricane which left Virginia with widespread flooding, downed trees and hundreds of thousands without power. The weather service reported a combined tide and surge of 7.54 feet around 8 p.m. at Sewells Point. Irene brought 3.5-foot to 4.5-foot storm surges across the region. There were no injuries, but there were numerous downed trees and downed power lines. There was one suspected tornado that ripped away roofs in Sandbridge in Virginia Beach.

September 9, 2011: The remnants of Tropical Storm Lee produced flash flooding in some sections of eastern Virginia.

October 28, 2012: Hurricane Sandy caused approximately $5 million in damages for the City of Virginia Beach, and brought about localized flooding, high winds and moderate debris.

July 3, 2015- Hurricane Arthur made landfall near Cape Lookout, N.C., as a Category 2 hurricane causing localized flooding of homes, businesses and roadways. Due to the path of the storm minimal damage was reported. Storm surge peaked at 1-1.5 feet across the lower Chesapeake Bay.

September 29-October 4, 2015- Virginia and the rest of the East Coast missed a direct hit from Hurricane Joaquin. However, a low-pressure system in the ocean sent


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prolonged rain to Virginia from Sept. 29 to Oct. 3, resulting in flooding in parts of Hampton Roads, the Peninsula, Northern Neck, Eastern Shore and Southwest Virginia to include Virginia Beach. Flooding resulted in damage to roads and road closures throughout Virginia. The prolonged storm spanned several high tide cycles resulting in flooding to numerous homes, businesses and roads.

September 19-22, 2016- The remnants of Tropical storm Julia brought 10 to 15 inches of rain over the course of 48 hours. Flooding resulted in damage to roads and road closures throughout Virginia. The prolonged storm spanned several high tide cycles resulting in flooding to numerous homes, businesses and roads.

October 08-10, 2016- Hurricane Matthew brought an additional 10 to 15 inches of rain in the overnight hours of October 8 to an already rain saturated area. Water levels rose quickly and many residents awoke to up to 24 inches of water inside their homes. Evacuations were forced, roads were closed and damage totals rose quickly with an estimated 2000 plus homes in Virginia Beach being damaged leading to disaster declaration DR-VA-4291.

C. FIRM Information

1. Is the project located within a flood hazard area? Check all that apply. Yes, all projects are located in the Flood Hazard Area.

Floodplain Floodway No Other; If Other, Identify:

2. Is there a Flood Insurance Rate Map (FIRM) or Flood Hazard Boundary Map (FHBM) available for the project area? If No, please explain: Yes

3. Enter FIRM panel number: All of the project areas are included in FIRMs for 2015, see attached FIRMettes.

4. Indicate Flood Zone Designations for project area: AE/A

a. If more than one Zone, enter additional zones here: AE/A

5. Attach FIRM maps with project sites marked.

Firmette 5155310103G is attached.


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(Larger map is included in attachments at the end)

Section VI. Scope of Work

1. What are the goals and objectives of this activity? The goal of this project is to mitigate the widespread flooding due to moderate rain events and during periods of significant high tides in the Lynnhaven River in the Windsor Woods, Presidential, Rosemont and adjoining neighborhoods.

Briefly describe the need for this activity. The project locations part of an overall comprehensive drainage control project, with this application being for a specific stand alone draining improvement to include 445 linear feet of pipe improvements across Kings Point Court that outfalls to Presidential Canal. NFIP claims will be drastically reduced and economic loss and disruption resulting from the repeated flooding of residential structures will be alleviated. 2. Describe the problems this activity will address. This activity will address and reduce

future flood damage and NFIP claims to vulnerable homes. The project is needed to reduce this damage, economic loss and disruption resulting from the repeated flooding of residential structures.

3. Describe the methodology for implementing this activity. As part of a comprehensive flood control study a Capital Improvement Project was initiated to address the drainage issues in this area and the repetitive flooding suffered by the residents within this area. Michael Baker International was contracted to perform the study and has included multiple analyses determining these projects to be the most beneficial and for one of the most vulnerable areas of the city.


5. Work Schedule

Prepare and Submit Application September 14, 2017 (deadline)

Grant Approved- Begin Project Post Award Management Start Date (SD)

Design SD + 150 days

Acquire Easements SD+ 450 days

Award Construction Project SD+ 550 days

Complete Construction SD+ 775 days


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Closeout Grant SD+ 775 days

Section IX. Decision Making Process 1. Describe the process you used to decide that this project is the best solution to the problem.

Consider the following questions when writing your narrative:

a. Are you focusing on the area in your community that has the greatest potential for losses?

b. Have you considered the risks to critical facilities and structures and benefits to be obtained by mitigating this vulnerability?

c. Have you considered those areas or projects that present the greatest opportunities given the current situation and interest in your community?

d. Are you addressing a symptom or the source of the problem? Addressing the source of the problem is a long-term solution which provides the most mitigation benefits.

e. If impacts to the environment, natural, cultural or historic resources have been identified, explain how your alternatives and proposed project address, minimize, or avoid these impacts?

Decision Making Process Narrative:

As a result of coastal storms and localized and coastal flooding, many homes in the

City of Virginia Beach (City) have experienced extensive and severe flood damages.

Flooding resulted in damage to roads and road closures throughout Virginia. The

prolonged storm spanned several high tide cycles resulting in flooding to numerous

homes, businesses and roads.

On a frequent basis, the Windsor Woods/Presidential/Rosemont Road and

adjoining neighborhoods of Princess Anne Plaza experience wide-spread flooding,

due to moderate rain events and during periods of significant tidal Elevations in the

Lynnhaven River. The fire and rescue station on South Plaza Trail is unable to

respond to calls for assistance many times a year, due to the deep, wide-spread

flooding. Also, the four-lane section of Rosemont Road south of Clubhouse Road

frequently becomes impassable due to these flooding events. This project will

improve storm water management within the project area to relieve wide-spread

flooding. Windsor Woods (7-028), Princess Anne Plaza (7-050), and The Lakes (7-

051) are located in low lying elevation areas that require extensive storm drain and

tidal protection improvements. All three projects are dependent on each other to


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provide the necessary storm drain and tidal protection for not only their project

area but also the other two project areas. Until all three projects are completed, the

three projects are susceptible to flooding from major rainfall and tidal events.

The proposed project is consistent with land use in the area and will help the City to

become more disaster resistant. The proposed project will have an effect on land

currently used as residential developments. The project would have no adverse

effects on any lands considered prime or unique farmlands. After completion, land

use will remain residential. The protection of properties that are under the threat of

flooding will have a positive net impact on the life, health, and safety of those

individuals directly affected. Also, those homeowners would be protected from the

financial hardship brought about by repeated flooding. Emergency relief agencies

may realize a slightly reduced demand for post-flood recovery services because of

fewer households subject to flooding. The overall land use and socioeconomic effect

of the project will be positive. The project will have no negative effect on air quality,

nor will it require any dredging and/or disposal of any material (including

construction) in any wetlands or waterways. The project will not negatively affect

any current declared wild and scenic river or any river being studied for inclusion

as a wild and scenic river. It is expected that there will be no effects on natural

resources. To our knowledge, there are no historical resources that will be affected

by the proposed project. All Environmental and Historical agencies will be notified

pre-construction and will inform the City if there is any historical or environmental

significant impacts as a result of this project. SHPO has been properly notified of all

properties that may have historical significance. There are no known underground

storage tanks, hazardous building materials, hazardous waste sites, or any other

hazardous materials present. The same applies to all alternatives considered.

2. Explain why this project is the best alternative. The City has considered other

options or alternatives and these projects collectively represent the only viable

option. The City taking no action is not an acceptable alternative because it leaves

the homes and residents in harm’s way. It is anticipated these homes will continue to

experience losses. The affected citizens would be burdened with tremendous


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expenditures of repair and/or relocation to avoid future flood losses and severe

insurance rate increases.

Section X. Cost Estimate In this section, provide the details of all costs associated with this project.

(larger copy is attached to this application)

Total Project Cost Estimate: $201,115


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Section XI. Match Sources 1. Please attach a Funds Commitment Letter

2. Indicate Federal and Non-Federal Shares of Total Project Cost

a. Total Project Cost: $201,115

b. Federal Share: $158,336 Indicate Percentage: 75%

c. Non-Federal Share: $42,779 Indicate Percentage: 25%

3. Indicate Non-Federal Source #1

a. Non-Federal Funding Source: City of Virginia Beach

b. Name of Funding Source: CIP 7.028.000

c. Funding Type: Capital Improvement Project

d. Amount of Matching Funds: $42,779

4. Indicate Non-Federal Source #2 (if applicable)

a. Non-Federal Funding Source: Select One...

b. Name of Funding Source:

c. Funding Type: Select One...

d. Amount of Matching Funds:

5. Indicate Non-Federal Source #3 (if applicable)

a. Non-Federal Funding Source: Select One...

b. Name of Funding Source:

c. Funding Type: Select One...

d. Amount of Matching Funds:

Section XII. Cost Effectiveness Information 1. What is the source and type of the problem? Recurrent flooding of residential properties and

public streets in the floodplain.

2. How frequent is the event? A few times a year

3. How severe is the damage? Streets flood several times a year, homes have flooded at least every couple of years with two major flood events in 2016 alone resulting in $7m in damages to residential structures.

4. What kinds of property are at risk? Residential properties located in vulnerable areas of the floodplain.

5. Are there better alternative ways to solve the problem? no

6. Are the mitigation costs well documented and reasonable? yes

7. Additional Comments: This project has a BCA of 13.46. The calculated benefit is $6,937,207 for this project. This project effectively mitigates flooding for 289 homes and 38,752 feet of street flooding.


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8. Please attach completed Benefit Cost Module.

The BCA analysis is attached.

Section XIII. Project Specific Cost Effectiveness Information (Complete for all projects that are not elevation or acquisition)

1. Total Square Footage of Structure: N/A- This is a flood control project

2. Maximum number of occupants- Intended Use: Emergency Use:

3. Services Provided:

4. Annual Operating Budget: $ ; Daily Operating Budget: $ , please provide number of days if not based on a 365-day calendar year:

5. Replacement Cost of facility or equipment (This figure should be calculated by using established cost estimation references, including RSMeans or Marshall & Swift Data.) $

6. Loss of perishable items stored or maintained at the facility. Provide total economic loss and a description of items.

7. Number of residential customers served, if applicable:

8. Number of business customers served, if applicable:

9. Daily Amount of Water/Sewer Processed by the Facility, if applicable:

10. Water/Sewer Charge Rate, if applicable:

11. Please list and describe any other expenses:

12. Describe damages experienced with the current drainage system. Be sure to include direct costs and damages, damages to real property, and loss of function.

13. Provide capacity of the existing drainage system and level of protection. Include maps.

14. Provide capacity of the proposed drainage system and level of protection post mitigation. Include maps.

15. Provide a site plan, with alignment drawings, that includes the location, plan view and cross-section of cuts, fills and structures as required. Include the type and dimensions of all pipes, culverts, ditches, swales and detention/retention basins and ponds. Send the following supporting documents as appropriate:

a. Engineering calculations used to determine the sizes of any culverts in the project area (drainage area, amount of flow, slope of culvert, invert elevations).

b. Engineering calculations used to determine the sizes of any ditches and swales in the project area (drainage area, amount of flow, bottom slope, side slope and depth).

c. Engineering calculations used to determine the sizes of any detention/retention basins and ponds (drainage area, amount of flow, stage-storage, and stage-discharge curves).

d. Engineering calculations for proposed drainage project not specified above.

Engineering calculations must be signed and sealed by a registered professional engineer.


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16. Explain potential environmental impacts. Both upstream and downstream impacts need to be considered and discussed in the NEPA documents and coordination letters.

17. Using the effective Flood Insurance Rate Map, show potential impacts on mapped Special Flood Hazard Areas. If project requires construction in a floodway, provide engineering calculations to support a no-rise certification. If project affects base (100-year) flood elevations, a Conditional Letter of Map Revision (CLOMR) may need to be approved by FEMA before construction begins. Also, a Letter of Map Revision (LOMR) may be required after the project is completed. Fees and time required for FEMA reviews should be included in the project cost estimate and schedule.

18. Note any special circumstances regarding project scheduling.


Section XIV. Environmental Review

A. National Historic Preservation Act - Historic Buildings and Structures

1. Does your project affect or is it in close proximity to any buildings or structures 50 years or more in age? Yes

Request for information and response letter from the State Historic Preservation Office, and/or the Tribal Historic Preservation Office, as well as other sources such as a local historical society.

Documentation of any structures listed on the National Register of Historic Places, or are within or near a National Register Historic District, including, if possible a diagram or map of the relation of the buildings(s) to the area.

Documentation of how the project design will minimize the effects on historic structures or suspected historic structures, and any alternatives to avoid or minimize effects on historic structures.

For acquisition/demolition projects, data regarding consideration of elevation or relocation as alternatives.

Additional Comments: The State and Federal Agencies assist in informing NHPA of project involvement. There are no homes on the historic registry included in this application.

B. National Historic Preservation Act - Archeological Resources

1. Does your project involve disturbance of ground? Minimal disturbance to previously disturbed ground only.

Documentation of the amount of disturbance in dimensions, area and volume, the location of the disturbance, and the past use of the area to be disturbed, noting the extent of previously disturbed ground. Include a site map showing the extent of ground disturbance.

Request for information and response letter from the State Historic Preservation Office (SHPO), or the Tribal Historic Preservation Office (THPO) and/or the Tribe's cultural resources contact if no THPO is present.

Additional Comments: The State and Federal Agencies assist in informing NHPA of project involvement.


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C. Endangered Species Act and Fish and Wildlife Coordination Act

1. Does your project remove vegetation? Vegetation will not be intentionally removed, however any vegetation that is removed as a consequence of ground disturbance will be replaced per Virginia Beach’s Chesapeake Bay Preservation Ordinances and Board.

Documentation of the amount and type of vegetation affected. Include a site map showing the extent of vegetation affected.

Additional Comments:

1. Is your project in or near any type of waterway or body of water (within 200 feet). Yes.

Documentation of the type of water body nearby, its dimensions, the proximity of the project activity to the water body, and the expected and possible changes to the water body, if any. Identify all water bodies regardless whether you think there may be an effect. Include a site map showing the project activities in relation to all nearby water bodies (within 200 feet).

Request for information and response letter from the US Fish and Wildlife Service and the State Wildlife Agency.

Additional Comments: The State and Federal Agencies assist in informing US Fish and Wildlife of project involvement.

2. Is the project not contained within existing structures, or may it result in changes or potential effects to the natural environment? Project scope should only impact pre-existing footprint of the residential structures and not result in changes to the natural environment.


Are there threatened or endangered species or their critical habitat present in the project area or within the county the project is located within? The State and Federal Agencies assist in informing US Fish and Wildlife of project involvement

Clean Water Act, Rivers and Harbors Act, and Executive Order 11990 (Protection of Wetlands)

Request for information and response letter from the US Fish and Wildlife Service, the State Wildlife Agency, and the National Marine Fisheries Service (if there are any ocean-going fish) regarding potential species present and potential impacts to species.


D. Clean Water Act, Rivers and Harbors Act, and Executive Order 11990 (Protection of Wetlands)

1. Will the project involve work near or in a waterway, dredging or disposal of dredged material, excavation, adding fill material or result in any modification to water bodies or wetlands designated as "waters of the U.S" as identified by the US Army Corps of Engineers or on the National Wetland Inventory. No.


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Documentation of the project location on a copy of a National Wetlands Inventory map or other available wetlands mapping information.

Request for information and response letter from the US Army Corps of Engineers regarding potential for wetlands, and applicability of permitting requirements.

Documentation of the alternatives considered to eliminate or minimize impacts to wetlands.

Documentation that a permit has been applied for, and if available, provide a copy of permits obtained at time of project application.

Additional Comments: The State and Federal Agencies assist in informing VDEQ of project involvement E. Executive Order 11988 (Floodplain Management)

1. Is the project located in a FEMA identified 100 or 500 year floodplain (on a FIRM map), in a FEMA identified floodway, or identified as a floodplain through some other source? Yes

Documentation of the alternatives considered to eliminate or minimize impacts to floodplains.

Additional Comments: See Narrative

2. Does the project alter a watercourse, water flow patterns, or a drainage way, regardless of its floodplain designation? No

Documentation of the Hydrology/Hydraulic information from a qualified engineering to demonstrate how drainage and flood flow patterns are changed and that identifies down and upstream effects.

Documentation of consultation with US Army Corps of Engineers (may be included under Part D of the Environmental Information).

Request for information and response letter from the corresponding State agency, if applicable, with jurisdiction over modification of waterways.


F. Coastal Zone Management Act

1. Is the project located in the State's designated coastal zone? No.

Permit from the appropriate State agency that implements the coastal zone management program or attach a request for information and response letter regarding coastal zone management requirements for the proposed activity.


G. Farmland Protection Policy Act

1. Will the project convert more than 5 acres of farmland outside community limits? No.

Completed USDA/NRCS Form AD-I006.

Request for information and response letter from the Natural Resource Conservation Service (NRCS).


H. RCRA and CERCLA (Hazardous and Toxic Materials)


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1. Is there a reason to suspect there are contaminants from a current or past use on the property associated with the proposed project? No. If Yes, Explain:

2. Are there any studies, investigations, or enforcement actions related to the property associated with the proposed project? No. If Yes, Explain:

3. Do any project construction or operation activities involve the use of hazardous or toxic materials? No. If Yes, Explain:

4. Do you know what the current and past land-uses are of the property affected by the proposed project and the adjacent properties? No. If Yes, Explain:


I. Executive Order 12898, Environmental Justice for Low Income and Minority Populations

1. Is the project in an area of low income or minority populations? No. If Yes, Explain:

2. Will the project cause any changes that may affect nearby low income or minority populations resulting in adverse effects, or change availability of services? No. If Yes, Explain:


Other Environmental/Historic Preservation Laws or Issues

1. Are there other environmental requirements associated with this project that you are aware of? No. If Yes, Explain:

2. Are there any controversial issues associated with this project? No. If Yes, Explain:

3. Have you conducted any public meeting or solicited public input or comments on your specific proposed mitigation activities? No. If Yes, Explain:


Section XV. Maintenance Costs and Schedule 1. Provide a maintenance schedule including cost information. Routine maintenance is

already provided by the City on these drainage systems, no additional long term maintenance is required.

2. Identify each entity that will perform any long-term maintenance. N/A

3. If you would like to make any comments, please enter them here.

4. Attach letter from entity accepting performance responsibility.

Section XVI. Evaluation Information 1. Is your community participating in the Community Rating System (CRS)? No. If yes, what is

your CRS rating?

2. Is your community a Cooperating Technical Partner (CTP)? No.

3. Is your community a Firewise Community? No. If yes, please provide Firewise Community number.


Page 20 of 23

4. Has your community adopted building codes consistent with the International Codes? In Virginia all construction is regulated by the Virginia Uniform Statewide Building

Code, which amends the current edition of the International Building Codes (IBC) to meet Virginia law. Currently, the City of Virginia Beach (City) is enforcing the 2012 Virginia Uniform Statewide building code. Per Virginia law no locality can adopt its own building code.

5. Has your community adopted the National Fire Protection Association (NFPA) 5000 Code? No.

6. Have your community's building codes been assessed on the Building Code Effectiveness Grading Schedule (BCEGS)? No. If yes, what is your BCEGS rating?

7. Is the recipient a Disaster Resistant University? No.

8. Is the recipient a Historically Black College or University or a Tribal College or University? No.

9. Describe the desired outcome and methodology of the mitigation activity in terms of mitigation objectives to be achieved. By combining the project included in this application with other flood control projects contained in the CIP the City expects to alleviate flooding to significant portions of the Windsor Woods, Presidential, Rosemont Road and Princess Anne Plaza neighborhoods. This project is projected to alleviate flooding to 289 homes and 38,752 lengths of street. (see Michael Baker Analysis).

10. Describe performance expectations and timeline for interim milestones and overall completion of mitigation activity. See project schedule

11. Describe how you will manage the costs and schedule, and how you will ensure successful performance. City Staff from Emergency Management, Public Works, Finance, Purchasing, Permits and Inspections, Legal and others are engaged. The project will be managed by Public Works in conjunction with the project management process utilized in other city projects

12. Describe the staff and resources needed to implement this mitigation activity and applicant's ability to provide these resources The City has a capital improvement project dedicated to flood mitigation assistance projects.

13. If applying for multiple mitigation activities, how do these activities relate (i.e., mitigation project as demonstration for public education; two different mitigation activities for the same structure; feasibility study and related mitigation activity)? NOTE: Mitigation activities included in a given application must be related. n/a

14. How will this mitigation activity leverage involvement of partners to enhance its outcome? By contacting all the various state and federal agencies to seek their approval, the City is preventing future problems and ensuring overall community support for the project.

15. How will this mitigation activity offer long-term financial and social benefits? Homeowners would be protected from the financial hardship brought about by


Page 21 of 23

repeated flooding. Emergency relief agencies may realize a reduced demand for post-flood recovery services because of fewer households subject to flooding. The overall land use and socioeconomic effect of the project will be positive. Future NFIP claims will be reduced.

16. How does this mitigation activity comply with Federal laws and Executive Orders (National Environmental/Historic Preservation Policy Act, National Historic Preservation Act, Endangered Species Act, Clean Water Act, Executive Order 11988, Floodplain Management, Executive Order 11990, Protection Of Wetlands, Executive Order 12699, Seismic Safety of Federal and Federally Assisted or Regulated New Building Construction) and how is it complementary to other Federal programs (American Heritage Rivers Initiative; SBA Mitigation Loan Program; EPA Watershed Initiative, US Fish and Wildlife Services Fish Passage Program)? All concurrences have been sought and the project will not proceed until all interested agencies provide written guidance and/or approval.

17. What outreach activities are planned relative to this mitigation activity (e.g., signs, press releases, success stories, developing package to share with other communities, losses avoided analysis)? Numerous public meetings and notifications have been sent out along with flood outreach in the aftermath of Hurricane Matthew.

18. Please provide the percent of the population benefiting from this mitigation activity. (The percent of the population benefiting is calculated by dividing the count of individuals directly benefiting into the total population of the community(s) this project affects.) Please explain your response. This number is hard to quantify. This project will directly benefit 289 homes and their residents and will indirectly benefit the 3492 homes in the affected neighborhoods by alleviating flooding that prevents fire/police/ems from responding in events where streets are flooded. The City benefits as a whole from reducing economic impacts and the nation as a whole benefits from reduced NFIP claims and improved NFIP ratings.

19. Describe how your community uses incentives to encourage mitigation (e.g., tax credits, building codes, waiver of building permit fee, FEMA-approved mitigation plan in place). The City has in place a FEMA approved mitigation plan that outlines the mitigation strategies for the municipality for the next five years. The City has also initiated an internal floodplain management group, sea level rise workgroup and severe repetitive loss workgroup to best collaborate on how to mitigate the most vulnerable areas in the City and to lower insurance rates for the citizens. In addition to flood control projects, the city is engaged in developing a city program to integrate mitigation efforts by citizens for their private residences to provide incentives for citizens to mitigate their properties. Examples of these include tax incentives, grant and low interest loan programs.

20. Describe how this mitigation activity is creative and innovative. This flood control project is unique because it provides a solution without a great deal of cost or disruption to life. Homeowners can still continue to live in an area that they like, in their own home, but out of harm’s way. This project protects entire neighborhoods instead of small groups of homes as is the case with elevation or acquisition projects, and maintains the close knit communities these families currently live in.


Page 22 of 23

21. Describe how this mitigation activity will serve as a model for other communities (i.e., Do you intend to mentor other communities, Tribes or States? Do you intend to prepare a description of the process followed in this activity so that others may learn from the example?) This mitigation activity will serve as a model to other communities in the area. Virginia Beach is the fastest growing, largest City within the Commonwealth of Virginia. By taking on four mitigation projects, the City is showing a proactive and innovative approach for other flood prone communities to also participate in mitigation grants.

WW_Analysis_Support_05Sep2017_Memo_Full.docx

Memorandum

To: Mike Bumbaco From: Mike Morgan and Jay Gopal Date: September 5, 2017 Subject: Windsor Woods Analysis Support

Introduction This memo presents analysis performed in the Windsor Woods Subdivision, in addition to the

evaluations documented in “Draft Windsor Woods Stormwater Management System Flood

Mitigation Plan” (referred to as “the previous study” in this report). As part of this analysis,

CDM Smith evaluated the three projects described below for the 100-year design storm. A

schematic with all projects is included as Attachment A.

Project Description For all three projects, the downstream and dredging improvements are assumed to be

constructed, which includes the 900-cfs pump station and gated control structure, rectangular

box culverts connecting Lake Trashmore to Lake Windsor, and dredging Presidential Canal,

Windsor Oaks Canal, and a dredging of a portion of Thalia Creek. In addition, noted maintenance

to the existing system is assumed to be completed. Specific pipe improvements pertaining to

each project are described below.

▪ Project 1: The elements of Project 1 include 4,813 LF of pipe improvements along South

Plaza Trail from Rosemont Road to Presidential Boulevard, that outfalls to Presidential

Canal (Figure A-1)

▪ Project 2: The elements of Project 2 include 1,415 LF of pipe improvements along Old

Forge Road to Red Lion Road, that outfalls to Presidential Canal (Figure A-2)

▪ Project 3: The elements of Project 3 include 445 LF of pipe improvements across Kings

Point Court, that outfalls to Presidential Canal (Figure A-3)

Windsor Woods Analysis Support

September 5, 2017

Page 2


The improvements included in the three models are summarized in Table 1 below:

Table 1 Proposed Improvements

Item Feature Type Description

(Refer to Attachment A) Comments

Pipe Improvements

Project 1

P1.1 Addition

Construct 74 LF of 91-inch by 58-inch RECP from

Presidential Boulevard that outfalls to Presidential Canal.

P1.2 Addition

Construct 471 LF of 68-inch by 43-inch RECP along

Presidential Boulevard from Starlighter Drive to the

proposed pipe described in Item P1.1

P1.3 Addition

Construct 2745 LF of 68-inch by 43-inch RECP along

Presidential Boulevard from Bentley Gateway to south of

Starlighter Drive.

P1.4 Addition

Construct 1523 LF of 30-inch RCP along South Plaza Trail from S Rosemont Road to

Presidential Boulevard.

Project 2

P2.1 Addition Construct 560 LF of 36-inch

RCP along Red Lion Road that outfalls to Presidential Canal.

P2.2 Addition

Construct 855 LF of 30-inch RCP along Old Forge Road that connects to the pipe described in Item P.2.1.

Project 3

P3.1 Addition

Construct 140 LF of 24-inch RCP north of Kings Point

Road that outfalls to Presidential Canal.

P3.2 Addition

Construct 305 LF of 18-inch RCP north of Old Forge Court

that connects to the pipe described in Item P.3.1.

Downstream and Dredging Improvements

D1 Ditch Improvement Dredge 3990 LF of Presidential Canal.

Improve to a trapezoid channel, with a 20-feet wide bottom at -2 feet NAVD and

3:1 side slopes to meet existing grade. The center channel Manning’s roughness

value = 0.035.

D2 Ditch Improvement Dredge 1726 LF of existing Windsor Oaks West Ditch 1

D3 Ditch Improvement Dredge 2048 LF of Thalia

Creek that outfalls to Lake Windsor.

Improve to a trapezoid channel, with a 5-feet wide bottom at -3 feet NAVD and 3:1 side slopes to meet existing grade.


September 5, 2017

Page 3


Item Feature Type Description

(Refer to Attachment A) Comments

The center channel Manning’s roughness value = 0.035.

D4 Culvert Addition

Construct 200 LF 10-feet by 6-feet closed rectangular box

culvert that connects Lake Trashmore west of

Westchester Circle to Thalia Creek.

D5 Culvert Addition

Construct 150 LF 10-feet by 6-feet closed rectangular box

culvert that connects Lake Trashmore west of Smoke Rise Lane to Thalia Creek.

D6 Ditch Improvement

Remove a portion of the berm between Thalia Creek

and Lake Windsor and dredge 200 LF of the creek.

Improve to a trapezoid channel, with an 18-feet wide bottom at -3 feet NAVD and

3:1 side slopes to meet existing grade. The center channel Manning’s roughness

value = 0.035.

D7 Pump

Station Addition

Construct a new 900-cfs pump station and gated

control structure.

The gated control structure closes when the water surface elevations in Lake

Windsor and Lake Trashmore are higher than the downstream tailwater elevation

in Thalia Creek. The pump station is proposed to operate at six levels:

a 200 cfs pump that is triggered on at elevation 0.5 feet NAVD 88 and shuts off

at 0 feet NAVD 88.

a 100 cfs pump that is triggered on at elevation 2 feet NAVD 88 and shuts off at

0 feet NAVD 88.


at 1 feet NAVD 88.

a 100 cfs pump that is triggered on at elevation 6 feet NAVD 88 and shuts off at

1 feet NAVD 88.


at 1 feet NAVD 88.


at 1 feet NAVD 88.

Once the water surface elevations in Lake Windsor and Lake Trashmore are

less than the downstream tailwater elevation in Thalia Creek, the control

structure will fully open.


September 5, 2017

Page 4


Results Model results for this analysis are summarized in Table 2 below. Flood maps and detailed

results are included in Attachment B and C, respectively.

Table 2 Results Summary

Existing Project 1 Project 2 Project 3

Houses Flooding 357 68 65 68

Houses Protected N/A 289 292 289

Length of street flooding (ft)

Local 52,175 34,947 35,842 36,228

Primary 4,157 2,134 2,500 2,508

Private 16 16 16 16

Total 56,348 37,096 38,357 38,752

Length of street flooding alleviated (ft)

Local N/A 17,228 16,333 15,946

Primary N/A 2,023 1,657 1,649

Private N/A 0 0 0

Total N/A 19,251 17,990 17,596

Note: Length of flooding defined where flood depths were 6 inches or greater

Attachment A

Proposed Project Improvements

37PS"C\

18''

24''

Figure A-3Project 3

Windsor Woods Proposed Stormwater Improvements

ÜLake Windsor

900 cfs Pump Station andGated Control Structure

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Thalia Creek

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Old Forge Rd

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6' X 10'

6' X 10'

Thalia Creek

Windsor OaksWest Ditch #1

PresidentialCanal

Legend

Box Culvert

Remove and Dredge

"C\ Gated Control Structure

37PS Pump Station

Dredge Existing Ditch

Concrete Center Channel

Pipe

Proposed Improvements

0 0.25 0.50.125Miles

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Attachment B

Model Flooding Extents

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Sources: Esri, HERE, DeLorme, USGS, Intermap, INCREMENT P, NRCan, Esri Japan, METI, Esri China (Hong Kong), Esri Korea, Esri (Thailand), MapmyIndia,NGCC, © OpenStreetMap contributors, and the GIS User Community

Figure B-1City of Virginia Beach

Windsor Woods Existing Conditions: 100 Year Storm Flooding Extent

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LegendBoundary

Flood Extent

Hydrography

Flood Depth0.0 - 0.5 ft

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Figure B-4City of Virginia Beach

Windsor Woods Project 3 : 100 Year Storm Flooding Extent

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Attachment C

Addresses of Houses Protected by Proposed Projects

Table C-1 Addresses of houses flooding in existing condition and protected with proposed projects

No. Existing Project 1 Project 2 Project 3

1 321 PALACE GREEN BLVD Protected Protected Protected

2 128 PALACE GREEN BLVD X X X


4 4061 COLONIAL PKWY W Protected Protected Protected



7 200 WINDSOR WOODS CT X X X


9 3960 BRENTWOOD CRES Protected Protected Protected


11 3876 WINDSOR WOODS BLVD Protected Protected Protected

12 3944 OLD FORGE RD Protected Protected Protected

13 208 CORTLAND LN Protected Protected Protected


15 3776 SILINA DR Protected Protected Protected



18 3929 SILINA DR X X X

19 4037 COLONIAL PKWY W X X X


21 3817 WINDSOR WOODS BLVD X X X



24 3820 CONCORD BRIDGE RD Protected Protected Protected


26 3636 TEAKWOOD DR X X X



29 325 PALACE GREEN BLVD Protected Protected Protected

30 4005 PLAZA TRL S Protected Protected Protected







36 3928 WATERSIDE CT Protected Protected Protected



39 117 BERWICK CRES N X X X

40 128 BERWICK CRES N Protected Protected Protected

41 413 PRESIDENTIAL BLVD Protected Protected Protected

42 401 PINEY RIDGE CT Protected Protected Protected


44 3708 DONNAWOOD CT N X X X




48 4001 MINTWOOD CT X X X

49 3853 CHARTER OAK RD Protected Protected Protected


51 189 ROSEMONT RD S X X X





141 420 KINGS POINT CT Protected Protected Protected

142 417 OLD FORGE CT Protected Protected Protected


144 509 OLD FORGE CIR Protected Protected Protected

145 500 GLADSTONE DR S Protected Protected Protected

146 3628 KINGS POINT RD Protected Protected Protected

147 3700 KINGS POINT ARCH Protected Protected Protected


149 3845 CONCORD BRIDGE RD X X X





153 3700 KINGS POINT CIR Protected Protected Protected










273 504 KINGS POINT RD S Protected Protected Protected


275 3801 LIBERTY RIDGE RD Protected Protected Protected


57 3704 PALACE PL X X X


59 204 CORTLAND LN X X X











70 205 BRENTWOOD CRES X X X

71 4009 MINTWOOD CT Protected Protected Protected


73 3700 PALACE PL X X X



76 3781 SOUTH BLVD X X X

77 3780 HISTORYLAND DR X X X

78 3640 TEAKWOOD DR X X X

79 3780 SOUTH BLVD X X X





84 201 BRENTWOOD CRES X X X




88 4005 MINTWOOD CT Protected Protected Protected





93 409 PARKWOOD CT Protected Protected Protected



96 4044 WINDSOR GATE PL Protected Protected Protected











107 3824 LIBERTY RIDGE RD X X X



109 500 OLD FORGE CIR X Protected X

110 504 OLD FORGE CIR X Protected X

111 3700 GLADSTONE DR X X X

112 3729 GLADSTONE DR Protected Protected Protected


114 3612 GLADSTONE ARCH S Protected Protected Protected







121 505 PINEY RIDGE RD Protected Protected Protected









130 3701 KINGS POINT ARCH Protected Protected Protected




134 3712 GRESHAM CT Protected Protected Protected













161 3904 HILLRIDGE CT X X X









171 3928 HILLRIDGE CT Protected Protected Protected










181 3829 OLD FORGE RD X X X




186 3712 VAN BUREN DR Protected Protected Protected




















205 501 GLADSTONE DR S X X X


207 504 STONEWALL CT Protected Protected Protected








215 4048 WINDSOR GATE PL Protected Protected Protected




219 501 STONEWALL CT Protected Protected Protected







225 3644 VAN BUREN DR Protected Protected Protected












237 3700 GRESHAM CT X X X





242 541 ROSEMONT RD S Protected Protected Protected







249 424 RED LION RD Protected Protected Protected




253 3753 OLD FORGE RD X Protected X



















282 3704 GRESHAM CT X X X









291 500 KINGS POINT RD S X X X











301 505 OLD MILL CT Protected Protected Protected






























































Comments:

Structure Summary For:

Copy Of Copy Of South Plaza Pipe, South Plaza to Presidential Canal, Virginia, 23452, Virginia Beach

Mitigation Hazard BCR Benefits Costs

Drainage Improvement Damage-Frequency Assessment 13.46 $2,706,409 $201,115

$2,706,409 $201,115Benefits: Costs:

Structure Type: Historic Building: Contact:Other No

13.46BCR:

Copy Of Copy Of Windor Woods Homes (247 homes), multiple, virginia beach, Virginia, 23452, Virginia Beach

Mitigation Hazard BCR Benefits Costs

Drainage Improvement Damage-Frequency Assessment 0.00 $0 $0

TBD Flood 0.00 $0 $0

$0 $0Benefits: Costs:

Structure Type: Historic Building: Contact:Building No

0.00BCR:

Project Summary:

Point of Contact:

Address: 2412 N. Landing Rd, Virginia Beach, Virginia, 23456

Kim Tempesco

Project Number: Disaster #:

Program:

Analyst:

WW3

FMA City of Virginia Beach

Kim Tempesco

7573858585Phone Number:

Email: [email protected]

Agency:

Version: 5.2.1

12 Sep 2017 Project: Pg 1 of 18

Total Benefits: Total Costs: BCR:

Project Number: Disaster #: Program: Agency:

State: Point of Contact: Analyst:

WW3 FMA City of Virginia Beach

Virginia

Windsor Woods Flood Control 3

$2,706,409 $201,115 13.46

Kim TempescoKim Tempesco

Structure and Mitigation Details For:

Benefits: Costs: BCR:

Copy Of Copy Of South Plaza Pipe, South Plaza to Presidential Canal, Virginia, 23452, Virginia Beach

$2,706,409 $201,115 13.46

Project Useful Life: 50Latitude: Longitude:

Hazard: Damage-Frequency Assessment - Flood

Mitigation Option: Drainage Improvement

Mitigation Information

Basis of Damages:

Number of Estimated Damage Events:

Historical Damages

Number of Events with Know Recurrence Intervals:

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$2,706,409 $201,115 13.46


Damages After MitigationDamages Before Mitigation

Historic Damages Before and After Mitigation

Analysis Year:

Year Built:

Analysis Duration:

User Input Analysis Duration:

Utilities ($/day):

Buildings ($/day):

Roads/Bridges ($/day):

2017

1978

40

$3,878.57

Damage Year: 2003RI: Are Damages In Current Dollars? No

Buildings (Days): Utilities (Days): 3.0Roads (Days): 3.0

Total $11,636

Total Inflated $11,636

Volunteers Cost

Number of Volunteers Required: Cost of Volunteers Time ($/Hour/Person): Per-Person Cost of Lodging for a Volunteer:Number of Hours Volunteered/Person: Number of Days Lodging/Volunteer: Cost of Volunteers:

Facility Description:

Roads And Bridges

7.26 miles of affected road

0:11

714

0.0

0.575

$3,879

Estimated Number of One-Way Traffic Trips Per Day:

Economic Loss Per Day of Loss of Function:

Federal Rate:

Number of Additional Miles:

Additional Time per One-Way Trip:

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Total $69,814


Volunteers Cost




Total $11,636


Volunteers Cost


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Total $11,636


Volunteers Cost




Total $11,636


Volunteers Cost


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Total $11,636


Volunteers Cost




Total $23,271


Volunteers Cost


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$2,706,409 $201,115 13.46


Cost Estimate

Project Useful Life (years):

Detailed Scope of Work:

Detailed Estimate for Entire Project:

Mitigation Project Cost:

Annual Project Maintenance Cost:

Final Mitigation Project Cost:

50

Yes

Yes$201,115

$201,115

$0

50

$0

Years of Maintenance:

Present Worth of Annual Maintenance Costs:Cost Basis Year:

Construction Type:



damage ($) $7,052,500

Total $7,075,771

Total Inflated $7,240,842

Volunteers Cost


Summary Of Benefits

Expected Annual Damages Before Mitigation

Expected Annual Damages After Mitigation

Expected Avoided Damages After Mitigation (Benefits)

Annual:

Present Value: $2,706,409

$196,106 Annual:

Present Value:

$0

$0

Annual:

Present Value:

$196,106

$2,706,409

Mitigation Benefits: $2,706,409 Mitigation Costs: $201,115

Benefits Minus Costs: Benefit-Cost Ratio:$2,505,294 13.46

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$2,706,409 $201,115 13.46


NoEstimate Reflects Current Prices:Construction Start Year:

Construction End Year: Project Escalation:

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$2,706,409 $201,115 13.46


Justification/Attachments

Field Description Attachments

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$2,706,409 $201,115 13.46





$ $ .00

Project Useful Life: 50Latitude: Longitude:

Hazard: Damage-Frequency Assessment - Flood

Mitigation Option: Drainage Improvement

Mitigation Information

Basis of Damages:

Number of Estimated Damage Events:

Historical Damages

Number of Events with Know Recurrence Intervals:

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Cost Estimate







50

Yes

Yes$0

$0

$0

50

$0

No


Present Worth of Annual Maintenance Costs:

Estimate Reflects Current Prices:

Cost Basis Year:

Construction Start Year:


Construction Type:

Damages After MitigationDamages Before Mitigation

Historic Damages Before and After Mitigation

Analysis Year:

Year Built:

Analysis Duration:

User Input Analysis Duration:

Utilities ($/day):

Buildings ($/day):

Roads/Bridges ($/day):

Summary Of Benefits




Annual:

Present Value: $0

$0 Annual:

Present Value:

$0

$0

Annual:

Present Value:

$0

$0

Mitigation Benefits: $0 Mitigation Costs: $0

Benefits Minus Costs: Benefit-Cost Ratio:$0 NaN

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$ $ .00

Street Maintenance Details

Miles of street (miles)

Length of road (miles)

Street maintenance budget ($)

No

Source of Flood Data: Project in SFHA: Community ID Number:

Effective FIS Date: FIRM Panel Number: FIRM Effective Date:

Latitude: Longitude:

Size of Building: BRV ($/sf): Total BRV:

(Default)Displacement Costs:

(Default)Building Contents: Value of Crawlspace Contents:

Loss of Rent:

Structure Elevation:

Hazard: Flood

Project Useful Life:

First Floor Being Raised: Demolition Threshold: 50.00%

One Time Displacement Costs:

H&H Study Title: H&H Effective Date:

Residential: Building Type:Yes

Foundation Type: NoBasement:Obstruction: N/A

Building Primary Use: Structure Type:

Flood Zone:

Mitigation Option:

NoHistoric Building:

Ground Surface Elevation:

Breaking Wave Height:

Height FFE Above Grade:

Flood Zone Determination:

NoUtilities that are not elevated:

Current federal lodging per diem:

Population affected :

Current federal meals per diem:

Cost per person to eat meals at home:

NFIP:

ICC: No

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$0.00Total Reduced Street Maintenance Costs

$0.00$0.00

$8,736.00$2,443.00

Social Benefits

Number of Person: Number of Worker:

Treatment Costs per person: Productivity Loss per person:

Total Mental Stress and Anxiety Cost: Total Lost Productivity Cost:

Mental Stress and Anxiety Lost Productivity

Volunteer Costs

Number of Volunteers Required: Number of Hours Volunteered/Person:

Cost of Volunteers Time ($/Hour/Person): Number of Days Lodging/Volunteer:

Per-Person Cost of Lodging for a Volunteer: Cost of Volunteers:

Coastal Flood Elevations

Base Flood Elevation:

Flood Source Name:

Flood Profile Number:

Elevation At Which Barrier Will Be Overtopped:

FEMA Elevation Certificate Diagram Description: Other Elevation Source:

No Data

NoHas Sea Level Rise Been Included? Sea Level Rise Increase:

Base Flood Elevation With Sea Level Rise:

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Summary Of Benefits




Annual:

Present Value: $0

$0 Annual:

Present Value:

$0

$0

Annual:

Present Value:

$0

$0

Mitigation Benefits: $0 Mitigation Costs: $0

Benefits Minus Costs: Benefit-Cost Ratio:$0 NaN

Other Benefits Before Mitigation

Other Benefits After Mitigation

Other Benefits

No Data

No Data

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No Rows

Cost Estimate







No

No$0

$0

No


Present Worth of Annual Maintenance Costs:

Estimate Reflects Current Prices:

Cost Basis Year:

Construction Start Year:


Construction Type:

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Capital Project Detail Sheet

7.028.000: Windsor Woods Drainage

City of Virginia Beach , VAPublic Works

CIP Section:

Project Type:

Business Area:

CIP Status:

A top priority for City Council is the management and planning of programs as they relate to flooding districts. This project is for design,

acquisition, and construction of storm water and roadway improvements necessary to alleviate wide spread area flooding due to moderate

rain events, and during periods of significant high tides from the Lynnhaven River in the Windsor Woods /Presidential/Rosemont Road area

and adjoining neighborhoods of Princess Anne Plaza. The western side of the project area discharges to Lake Windsor, Thalia Creek and

then to the Western Branch of the Lynnhaven River. The eastern side of the project area discharges to London Bridge Creek and then to the

Eastern Branch of the Lynnhaven River. The drainage improvements may include, but are not limited to, storm water pump stations, tide

control devices such as gates, and check valves as appropriate, storm drain pipe improvements, improvements to the Windsor

Woods/Presidential Canal, improvements to the North Gate drainage channel and roadway improvement for a section of Rosemont Road

south of Clubhouse Road.

Description and Scope

Rose HallCity District(s):

Storm Water

New Facility Construction/Expansion

Capital Projects

Approved

First Year in CIP:

Active Project

Points of Contact

Project Manager: Public Works - Jeff S Waller P.E. (757)-385-4131

Schedule of Activities

Start End CostApproved Budget

CostEndStart

Current EstimatesProject Activity

Design2000 07/01/2014 12/31/2028 5,600,000

Site Acquisition3000 07/01/2014 12/31/2026 1,500,000

Construction5000 07/01/2017 12/31/2029 23,200,000

Contingencies9000 07/01/2017 12/31/2029 4,700,000

35,000,00012/31/202907/01/2014Overall Project Start, End & Cost:

Current Status and Progress

The Preliminary Engineering Report is currently being developed to

define the scope of the project, develop phasing of the proposed

drainage improvements and develop alternative improvements.

Additionally Presidential Canal and Northgate ditch are being

scheduled for maintenance drainage improvements. Preliminary

design plans for dredging Northgate ditch and Windsor Woods Canal

(Presidential Canal) were presented at informal public meetings with

the neighborhoods held in October 2016. Final design plans are

complete and construction bids have been received. Construction for

both projects began in July, 2017. Anticipate both projects to last

approximately 12 months.

Last Updated: 8/7/2017 3:53:00PM

Attachments

Related Projects

Project Planning and Tracking System (PPATS) Page 1 of 1 9/12/2017

297

Documents

Flood Mitigation Assistance (FMA) Program€¦ · Flood Mitigation Assistance (FMA) Program City of Virginia Beach, Virginia Project application for Windsor Woods Flood Control