Hamilton Township in Mercer Countywater.rutgers.edu/Projects/Hamilton/Hamilton...C0216 C0215 C0213C0214 C0212 C0210 C0209 C0208 C0206 C0204 C0203 C0202 D0216 D0213D0214 D0211 B0203

Hamilton Township in Mercer County

Stormwater Outfall Assessment

Developed by Rutgers Cooperative Extension Water Resources Program

Funded by Hamilton Township, Mercer County, New Jersey

December 2015

Acknowledgements

The Hamilton Township (Mercer County) Stormwater Outfall Assessment has been produced by the Rutgers Cooperative Extension (RCE) Water Resources Program. The principal authors were Jeremiah Bergstrom, LLA, ASLA, Senior Research Project Manager and Robert Brown, staff intern. Field work for the assessments was conducted by the RCE Water Resources Program interns Dillon Swiderski Soto, Dominick Cardella, Elizabeth Pyshnik, Enrique

Jimenez, and Amna Rahman. Funding for this project was generously provided by the Township of Hamilton, Mercer

County, NJ and in part by the New Jersey Agricultural Experiment Station through the United States Department of Agriculture.

Contents

Assessment Summary: Pages 1-2

Attachments:

Outfall Location Maps

Assessment Form

Tabular Data

Summary Maps

CD-Rom with Photos and Assessment Findings

1

Introduction

Hamilton Township in Mercer County New Jersey maintains over 400 stormwater outfalls that drain directly into waterways. This document is a summary of the outfall pipe inspection program conducted in 2015 to provide a baseline assessment of existing conditions related to stream scouring at stormwater outfall discharge locations in streams and waterways. This assessment evaluates the physical condition of outfall structures, erosion caused by the outfalls, structural integrity and other factors.

It was not the intent of this program to be a complete and comprehensive inventory of all stormwater outfalls in the MS4 system. All efforts for this project were for the purpose of mapping and inventorying outfall pipes that discharge directly to mapped streams.

The assessments were performed between June and August of 2015 by Rutgers Cooperative Extension (RCE) Water Resources Program staff members.

Methods and Procedures

A multi-part approach was taken to assess stormwater outfalls that discharge directly to waterways in Hamilton Township. A geographic information system (GIS) was created to visualize the location of mapped outfall locations. A GIS data layer was created to be compatible with the ESRI Collector Application. The Collector Application software was used to develop a mobile assessment tool that could record information collected in the field using hand held tablet computers. Field staff then used the tablet computers and ESRI Collector Application software to photograph, record data, and geotag the location of each stormwater outfall assessed. RCE Water Resources Program staff visited and assessed accessible stormwater outfalls mapped by the GIS and Collector Application software. A total of 261 outfalls were located and assessed in 2015. Information about the condition, material, diameter, and other factors was recorded for each assessed outfall.

A maintenance prioritization was developed using the field data collected for the 261 stormwater outfalls. Priority was given to outfalls that showed significant signs of deterioration, were causing downstream erosion, were unstable due to erosion, or showed signs of illicit connections. Consideration was also given to the amount of vegetation growth in and around the outfall, quantity of sediment deposits, areas of known commercial or industrial uses and other factors.

Summary of Key Findings

The following conclusions were formed after reviewing data for the 261 outfalls assessed. A total of 8% of assessed outfalls were designated as high priority locations in need of maintenance, 31% were designated as medium priority and 61% were designated as low maintenance priority sites. Approximately 25% of outfalls were found to be showing signs of significant deterioration. An estimated 30% of the outfalls were found to be causing downstream erosion and 16% of outfalls

2

were noted to be unstable due to erosion. Information about each outfall assessed can be found in the Tabular Data section of this document. Summary maps of this information can be found in the Summary Maps section.

Description of Summary Maps

A series of four summary maps were created illustrating the key findings noted above. These maps include, “Outfall Maintenance Prioritization”. This map represents a prioritization for maintenance of stormwater outfalls. Higher priority was given to damaged outfalls, outfalls that are causing erosion, outfalls that are unstable due to erosion, areas with floatables, and unknown sources of odors. The “Outfall Pipe Condition” map identifies outfall structures with visible cracking, spalling, corrosion, and peeling. There were 65 stormwater outfalls identified as having a degraded physical condition. The “Downstream Erosion” map represents outfall locations where downstream erosion was noted due to the outfall discharge. There are a total of 81 outfalls identified to be causing downstream erosion. The final summary map, “Outfall Stability,” identifies those outfalls that are unstable due to erosion in and around the outfall structure. There are 43 outfalls that have been identified as showing concerns with overall outfall structural stability.

Recommendations

Based on the assessment and summary findings, preliminary recommendations for remediation and maintenance include the following:.

1. The 21 outfalls identified as high priority for maintenance should be visited by Township personnel and a plan and schedule should be developed to take necessary corrective actions as soon as possible.

2. A complete maintenance plan and schedule should be developed for all stormwater outfalls to address the deficiencies noted in this assessment in a timely manner.

This assessment was not intended to be a complete and comprehensive inventory of all stormwater outfalls in the MS4 system. Efforts for this project focused solely on mapping and inventorying known outfall pipes discharging directly to mapped streams. Other outfalls in the MS4 system exist and may need to be investigated at a later time.

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Service Layer Credits: Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AEX, Getmapping, Aerogrid, IGN, IGP, swisstopo, and the GIS

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Data Sources: NJOIT, NJDOT, NJDEP, RCE Water Resources Program

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Stormwater Infrastructure Assessment Program

Stormwater Outfall Inspection Checklist

GENERAL INFORMATION Site ID:

Name(s) person inspecting the outfall: Date:

Location Address and Cross Streets: Watershed:

Name of Creek, Stream, or area into which the outfall discharges: Property Owner / Tax Parcel Block & Lot:

Contact information:

STRUCTURAL COMPONENTS Outfall description: Is the outfall accessible to maintain? Yes / No

Is it maintained: Mowed, clear of woody plants, blockages? Outfall Material:

Weather over past 24 Hours: Outlet diameter:

GENERAL OBSERVATIONS YES NO NOTES/REMARKS 1) Any reports on the outlet not functioning? 2) Are there any unauthorized or malfunctioning structures connected to the outfall?

Stormwater Infrastructure Assessment Program

Stormwater Outfall Inspection Checklist

OUTLET YES NO NOTES/REMARKS

1) Known industrial or commercial uses in drainage area?

2) Odor? (Sewage, Sulfide, Oil, Gas, Rancid or Sour, Other)

3) Color? (None, Yellow, Brown, Green, Gray)

4) Turbidity? (Clear, Cloudy, Opaque)

5) Floatables? (Petroleum Slick, Raw Sewage, Trash)

6) Deposits? (Sediment, Oil, Other)

7) Vegetation? (Normal, Excessive, Inhibited)

8) Outfall Pipe Condition? (No Damages, Cracking, Spalling, Corrosion, Peeling Paint)

9) Has Erosion Undermined the stability of the outfall?

10) Extent of Erosion Damage in square feet? (None, Under 100, Between 100 and 500, Over 500)

SUMMARY AND NOTES: Identify unique characteristics and/or opportunities

Outfall ID Diameter in Inches

Weather over past 24 hours?

Maintenance Priority

Pipe Material

Industrial or commercial uses in

drainage area

Odor Color Turbidity Floatables Deposits Vegetation Outfall pipe condition

Has erosion undermined the stability of the

outfall?

Extent of erosion damage in square feet

A0301 24 Clouds Low Concrete Yes None Brown Cloudy None Sediment Normal Normal No Under 100 A0302 21 Clouds Medium Concrete Yes None Gray Cloudy None Sediment Normal Normal Yes Under 100 A0303 36 Clouds Low Concrete Yes None Brown Cloudy None Sediment Normal Normal No Under 100 A0501 24 Sun Low Concrete Yes None None Clear None Sediment Normal Normal No NoneB0201 36 Clouds Medium Concrete No None Gray Cloudy None Sediment Normal Normal Yes Under 100 B0202 24 Clouds Low Concrete No None None Clear None Sediment Normal Normal No NoneB0203 24 Clouds Medium Concrete Yes None Gray Cloudy Trash Sediment Normal Normal Yes Under 100 B0204 Clouds Medium Concrete No None Gray Clear None None Normal Cracking No Under 100 B0205 Clouds Medium Concrete Unknown None Gray Cloudy None Sediment Normal Normal Yes Under 100 B0206 12 Clouds Low Concrete Yes None Gray Clear None Sediment Normal Normal No NoneB0207 Clouds High Concrete Yes None Gray Cloudy None Sediment Normal Cracking Yes Under 100 B0208 24 Clouds Low Metal Yes None Gray Clear None None Normal Normal No NoneB0209 26 Clouds Medium Concrete Yes None Gray Cloudy None Sediment Normal Normal Yes Under 100 B0301 53 Clouds Low Concrete No None Brown Clear None Sediment Normal Normal No NoneB0302 16 Clouds Medium Concrete No None Other Clear None Sediment Normal Cracking No NoneB0303 24 Clouds Low Concrete No None None Clear None Sediment Normal Normal No NoneB0304 14 Clouds High Concrete Yes Sewage Gray Cloudy Trash None Normal Spalling No NoneB0305 40 Clouds Low Concrete Yes None Gray Cloudy None Sediment Normal Normal No NoneB0306 14 Clouds Medium Concrete Yes None Gray Cloudy None Oil Normal Normal No NoneB0307 26 Clouds Medium Concrete Yes Sewage Gray Cloudy None Sediment Normal Cracking No Under 100 B0308 34 Clouds Low Concrete No None None Clear Trash Sediment Normal Normal No NoneB0309 28 Clouds High Concrete No Sewage Gray Cloudy Trash Sediment Normal Normal Yes Under 100 B0310 31 Clouds Medium Concrete Unknown None None Clear None Sediment Normal Cracking Yes Under 100 B0311 14 Clouds Low Plastic No Sewage None Clear None Sediment Normal Normal No NoneB0312 26 Clouds Low Concrete Unknown None None Clear None Sediment Normal Normal No NoneB0313 14 Clouds Medium Metal Unknown None None Clear None Sediment Normal Normal Yes Under 100 B0314 6 Clouds Low Metal No None None Clear None None Normal Normal No NoneB0315 16 Clouds Medium Plastic No Sewage None Clear Trash Sediment Excessive Normal No NoneB0316 Clouds Low No None Other Clear None None Excessive Normal No NoneB0317 26 Clouds High Concrete Yes None None Clear Trash Sediment Excessive Cracking Yes 100 to 500 B0318 9 Clouds High Clay No None None Clear None Sediment Excessive Spalling Yes Under 100 B0319 14 Clouds Low Plastic Yes None Gray Cloudy None Sediment Normal Normal No NoneB0320 18 Clouds Medium Concrete Yes None Gray Clear None Sediment Normal Cracking Yes Under 100 B0321 18 Clouds Low Concrete Yes None Gray Clear None None Normal Normal No NoneB0322 30 Clouds Medium Concrete Yes None Gray Clear None None Normal Spalling No NoneB0323 40 Clouds Medium Concrete Yes None Gray Clear None Sediment Normal Spalling No NoneB0324 15 Clouds Medium Concrete Yes None Gray Clear None Sediment Normal Spalling Yes Under 100 B0325 12 Clouds Medium Concrete Yes None Gray Clear None Sediment Normal Normal Yes Under 100 B0326 24 Clouds High Concrete Yes Sewage Gray Clear None Sediment Normal Cracking Yes Under 100 B0327 Clouds Low Unknown None None Clear None None Normal Normal No Under 100 B0328 Clouds Low Unknown None None Clear None Sediment Normal Normal No Under 100 B0329 36 Clouds Medium Concrete No Sewage Gray Cloudy None Sediment Normal Spalling No Under 100 B0330 Clouds Medium Concrete Unknown Sewage Gray Cloudy None Sediment Normal Normal No NoneB0331 Clouds Low Concrete Unknown Sewage None Clear None None None Normal No None




Pipe Material


drainage area



outfall?


B0332 24 Clouds High Concrete Yes None Gray Cloudy None Sediment Normal Cracking Yes Under 100 B0401 40 Sun Low Concrete No Other None Clear None Oil Normal Normal No NoneB0402 16 Sun Low Concrete No None None Clear None Sediment Normal Normal No NoneB0403 8 Sun Medium Concrete No None None Clear Trash Oil Normal Normal No NoneB0404 16 Sun Medium Concrete No None Brown Opaque None Sediment Normal Spalling No Under 100 B0405 16 Sun Low Concrete No None None Clear None Sediment Normal Normal No NoneB0406 Sun Medium Concrete No None None Clear None None None Cracking Yes NoneB0407 76 Sun Low Concrete No None None Clear None None Normal Cracking No NoneB0408 Sun Low Concrete No None None Clear None None None Normal No NoneB0409 53 Sun Low Concrete No RS Other Clear None None Normal Normal No NoneB0410 24 Sun Low Concrete No None None Clear Trash None Normal Normal No NoneB0411 30 Sun Medium Concrete No RS Brown Opaque Sewage None Normal Normal No Under 100 B0412 36 Sun Low Concrete No None None Clear None Other Normal Normal No NoneB0501 Sun Medium Concrete No None None Clear Trash Sediment Excessive Spalling No NoneB0502 24 Sun Low Concrete No None None Clear None None Normal Normal No NoneB0503 30 Sun Low Concrete No None None Clear None Sediment Normal Normal No NoneB0504 48 Sun Low Concrete No None None Clear None Sediment Normal Normal No NoneB0505 16 Sun Medium Concrete No None None Clear None Sediment Normal Spalling Yes Under 100 B0506 22 Sun Medium Concrete No None None Clear Trash Sediment Inhibited Normal No Under 100 B0507 48 Sun Low Concrete No None None Clear None Sediment Normal Normal No NoneB0508 36 Sun Low Concrete No None None Clear None None Normal Normal No Under 100 B0509 16 Sun Low Concrete No None None Clear None None Normal Normal No NoneB0510 20 Sun Low Concrete No None None Clear None Sediment Normal Normal No Under 100 B0511 Sun Medium Concrete Unknown RS Brown Cloudy None None Normal Spalling No NoneC0201 8 Clouds Low Metal Yes None Gray Cloudy None None Normal Normal No NoneC0202 10 Clouds Low Metal Yes None Gray Clear None Sediment None Normal No NoneC0203 36 Clouds High Concrete Yes None Gray Cloudy None Sediment Normal Cracking Yes Under 100 C0204 8 Clouds Low Metal Yes None Gray Cloudy None Sediment Normal Normal No NoneC0205 10 Clouds Medium Metal Yes None Gray Clear None Sediment Excessive Normal No NoneC0206 10 Clouds Low Metal Yes None Gray Cloudy None Sediment Normal Normal No NoneC0207 36 Clouds Low Concrete Yes None Gray Cloudy None Sediment Normal Normal No Under 100 C0208 12 Clouds Medium Metal Yes None Gray Cloudy None Sediment Normal Peeling No NoneC0209 24 Clouds Low Concrete Yes None Brown Cloudy None Sediment Normal Normal No NoneC0210 18 Clouds Low Concrete Yes None Gray Cloudy None Sediment Normal Normal No Under 100 C0211 14 Clouds Low Concrete Yes None Gray Cloudy None Sediment Normal Normal No NoneC0212 18 Clouds Low Concrete Yes None Gray Cloudy None Sediment Normal Normal No NoneC0213 36 Clouds Medium Concrete Yes None Gray Clear None Sediment Normal Cracking Yes Under 100 C0214 48 Clouds Medium Concrete Yes None Gray Clear None None Normal Spalling No NoneC0215 Sun Medium Concrete Yes None Gray Clear None Sediment Excessive Cracking No NoneC0216 14 Sun Medium Concrete Yes None Gray Cloudy None Sediment Normal Spalling No NoneC0217 38 Sun Medium Metal Yes None Gray Cloudy None Oil Normal Corrosion No Under 100 C0301 42 Sun Medium Concrete No None Brown Cloudy Trash None Normal Corrosion No Under 100 C0302 24 Sun Low Concrete No None None Clear None None Normal Normal No Under 100 C0303 36 Sun Low Concrete No None None Clear None None Normal Normal No Under 100




Pipe Material


drainage area



outfall?


C0304 18 Sun Medium Concrete No None Brown Opaque None Oil Normal Normal No Under 100 C0305 Sun Low Unknown None None Clear None None None Normal No NoneC0306 20 Clouds Low Concrete No None None Clear None None Normal Normal No NoneC0307 Sun Medium Concrete Unknown RS Brown Cloudy None None Normal Corrosion No Under 100 C0308 25 Sun Low Concrete No None None Clear Trash None Normal Normal No Under 100 C0401 24 Sun Low Concrete Yes None None Clear None None Normal Normal No NoneC0402 24 Sun Low Concrete Yes None None Clear None None Normal Normal No NoneC0403 24 Sun Low Concrete Yes None Brown Clear None Sediment Normal Normal No Under 100 C0404 24 Sun Low Concrete Yes None Brown Clear None Sediment Normal Normal No Under 100 C0405 36 Sun Low Concrete Yes None None Clear None None Normal Cracking No NoneC0406 36 Sun Low Concrete Yes None None Clear None Oil Normal Normal No NoneC0407 18 Sun Low Metal Yes None None Clear Other Other Excessive Normal No NoneC0408 12 Sun Medium Metal Yes None None Clear None None Normal Corrosion Yes NoneC0409 18 Sun Low Concrete Yes None Brown Clear None Sediment Normal Normal No NoneC0410 28 Sun Medium Concrete Yes None Brown Clear None Sediment Excessive Spalling No Under 100 D0101 57 Sun Medium Concrete No None Gray Opaque None None Normal Normal Yes 100 to 500 D0102 12 Sun High Concrete No None None Clear Trash Sediment Excessive Cracking Yes Under 100 D0201 28 Rain High Concrete Yes Sulfide Gray Cloudy Trash Sediment Normal Cracking Yes Under 100 D0202 Rain High Concrete Unknown None Gray Clear None Sediment Excessive Spalling Yes NoneD0203 32 Rain Medium Concrete Unknown None Gray Cloudy None None Excessive Normal No NoneD0204 28 Rain Medium Metal Unknown None Brown Cloudy None Oil Normal Cracking No NoneD0205 28 Rain High Metal No None Brown Cloudy None Oil Excessive Cracking No NoneD0206 32 Rain High Concrete No None Gray Cloudy Trash Sediment Excessive Normal Yes 100 to 500 D0207 32 Rain High Concrete No None Gray Cloudy Trash Sediment Excessive Normal Yes 100 to 500 D0210 Rain Medium Concrete Yes None Gray Opaque Trash Sediment Normal Normal No Under 100 D0211 30 Rain Medium Concrete No RS Brown Opaque None Sediment Excessive Normal No NoneD0212 Rain High Metal No None None Clear None Sediment Excessive Cracking Yes Under 100 D0213 25 Rain Medium Concrete Unknown None Gray Cloudy Trash Sediment Excessive Normal No Under 100 D0214 Rain Medium Concrete No Sewage Brown Opaque Sewage Sediment Normal Normal No NoneD0215 38 Rain Medium Concrete No None Brown Cloudy Trash Sediment Normal Corrosion No Under 100 D0216 48 Rain Medium Concrete No None Other Clear None Sediment Normal Cracking No 100 to 500 D0301 15 Rain Medium Concrete No None None Clear None None Normal Cracking Yes 100 to 500 D0302 15 Rain Medium Concrete No None None Clear None Sediment Normal Normal Yes Under 100 D0303 16 Rain High Concrete No Sewage Brown Opaque Trash Sediment Excessive Cracking No Under 100 D0304 16 Rain High Concrete No Sewage Brown Opaque Trash Sediment Excessive Cracking No Under 100 D0305 32 Rain Medium Concrete Yes None None Clear None None Excessive Corrosion No NoneD0306 15 Rain Low Concrete No None Gray Opaque None None Normal Normal No NoneD0307 16 Rain High Metal No None Brown Clear Trash Sediment Normal Peeling Yes Under 100 D0308 18 Rain Low Concrete Yes None None Clear None Sediment Normal Normal No NoneD0309 18 Rain Low Concrete No None None Clear None Sediment Normal Normal No NoneD0310 18 Rain Low Concrete Yes None None Clear None None Normal Normal No NoneD0311 36 Rain Low Concrete Unknown None None Clear None Sediment Normal Normal No NoneD0312 18 Rain Low Concrete Yes None None Clear None None Normal Normal No NoneD0313 24 Rain Low Concrete Unknown None None Clear None None Normal Normal No None




Pipe Material


drainage area



outfall?


D0314 36 Rain Low Concrete Unknown None None Clear None Oil Normal Normal No Under 100 D0315 16 Rain Medium Concrete Unknown None Gray Clear None Sediment Normal Normal Yes Under 100 D0316 32 Rain Medium Concrete Unknown None None Clear Trash Oil Normal Normal Yes NoneD0317 48 Rain Low Concrete Unknown None Brown Cloudy None None Normal Normal No NoneD0318 15 Rain Low Concrete No None None Clear None None Normal Normal No NoneD0319 38 Rain Low Concrete No None Brown Cloudy None None Normal Normal No Under 100 D0320 18 Sun Low Concrete Yes None Gray Cloudy None Sediment Normal Normal No Under 100 D0321 40 Sun Medium Concrete Yes None Gray Clear None Sediment Normal Spalling No Under 100 D0322 14 Sun Low Concrete Yes None Gray Cloudy None Sediment Normal Normal No Under 100 D0323 24 Sun Low Concrete Yes None Gray Clear None Sediment Normal Normal No Under 100 D0324 24 Sun Low Concrete Yes None Gray Clear None None Normal Normal No NoneD0325 24 Sun Low Concrete Yes None Gray Clear None None Normal Normal No NoneD0326 24 Sun Low Concrete Yes None Gray Cloudy None Sediment Normal Normal No NoneD0327 12 Sun Low Plastic No None Gray Clear None None Normal Normal No NoneD0328 12 Sun Low Concrete Yes None Gray Clear None Sediment Normal Normal No NoneD0329 Sun Low Concrete Yes None Gray Clear None None Normal Normal No NoneD0330 Sun Low Unknown None Gray Clear None None Normal Normal No Under 100 D0401 26 Sun Low Concrete Yes None None Clear None None Normal Normal No NoneD0402 Sun Medium Unknown None Brown Cloudy Trash Sediment None Normal Yes NoneD0405 Sun Low Unknown None None Clear None None None Normal No NoneD0406 Sun Low Unknown None None Clear None None None Normal No NoneD0407 14 Sun Low Concrete Yes None None Clear None Sediment Normal Normal No NoneD0408 36 Sun Low Concrete Yes None Gray Clear None Sediment Normal Normal No Under 100 D0409 Sun Low Yes None None Clear Trash Sediment Normal Normal No Under 100 D0410 27 Clouds Medium Concrete Yes None Brown Cloudy Trash Sediment Normal Normal No Under 100 D0413 Sun Low No None Brown Clear None Sediment Normal Normal No NoneD0414 27 Sun Low Concrete Yes None Brown Cloudy None Sediment Normal Normal No NoneD0415 18 Sun Low Concrete Unknown None Brown Clear None Sediment Normal Normal No NoneD0416 30 Sun Medium Concrete Yes None Brown Cloudy None Sediment Normal Spalling No NoneD0417 36 Sun Medium Concrete Yes None Green Cloudy None Sediment Normal Normal No 100 to 500 E0101 30 Sun High Concrete No None None Clear Trash None Normal Cracking Yes 100 to 500 E0201 29 Clouds Low Metal No None None Clear None None Normal Cracking No NoneE0202 22 Clouds Low Metal No None None Clear None None Normal Cracking No NoneE0203 23 Clouds Medium Concrete Yes None None Clear Trash Oil Normal Normal No NoneE0205 24 Clouds Medium Metal Yes None None Clear Trash Sediment Normal Corrosion No NoneE0206 24 Clouds Medium Concrete Yes None None Clear Trash None Normal Cracking No NoneE0207 6 Clouds Low Plastic Yes None None Clear None None Normal Normal No NoneE0208 20 Clouds Low Concrete Yes None None Clear None None Normal Normal No NoneE0209 4.5 Clouds Low Plastic Yes None None Clear None None Normal Normal No NoneE0210 25 Clouds Medium Concrete Yes None None Cloudy Trash Sediment Normal Normal No NoneE0211 30 Clouds Medium Concrete Yes None Gray Cloudy Trash None Normal Normal No NoneE0212 25 Clouds Medium Concrete No None None Clear None Sediment Normal Cracking No NoneE0213 16 Clouds Medium Concrete No None Brown Clear None Sediment Normal Cracking Yes NoneE0214 12 Clouds Medium Concrete No None None Clear None Sediment Excessive Corrosion No None




Pipe Material


drainage area



outfall?


E0215 18 Clouds Low Concrete Yes None Brown Cloudy None Sediment None Normal No NoneE0216 18 Clouds Low Concrete Unknown None Gray Clear Trash None None Normal No NoneE0217 36 Clouds Low Concrete Yes None Gray Cloudy None None Normal Normal No NoneE0218 17 Clouds Low Concrete Yes None None Clear None None Normal Normal No NoneE0218 17 Clouds Low Concrete Yes None Other Clear None Sediment Normal Normal No NoneE0219 18 Clouds Low Concrete No None None Cloudy None None None Normal No NoneE0220 18 Clouds Low Concrete No None None Clear None Sediment None Normal No NoneE0221 12 Clouds Medium Metal Yes None None Clear Trash Sediment Excessive Normal No NoneE0222 16 Sun Medium Concrete No None None Clear Trash Oil Normal Normal No NoneE0223 Sun Low Unknown None None Clear None None None Normal No NoneE0224 28 Sun Medium Concrete No None None Clear Trash None Normal Spalling Yes Under 100 E0225 20 Sun Low Concrete No None None Clear Trash Sediment Normal Normal No NoneE0226 18 Sun Low Concrete No None None Clear None Sediment None Normal No NoneE0301 18 Sun Medium Metal Yes None Brown Clear None Sediment Normal Spalling No NoneE0302 Sun Low Concrete Yes None Brown Clear None None Excessive Normal No NoneE0303 16 Sun Low Concrete Yes None Brown Clear None Sediment Normal Normal No NoneE0304 24 Sun Low Concrete Yes None Brown Clear None None Normal Normal No NoneE0305 24 Sun Low Concrete Yes None Brown Clear None None Normal Normal No NoneE0306 14 Sun Low Concrete Yes None Brown Clear None Sediment Normal Normal No NoneE0307 14 Sun Low Concrete Yes None Brown Clear None Sediment Normal Normal No NoneE0308 Sun Low Concrete Yes None Brown Clear None None Normal Normal No NoneE0309 Sun Low Concrete Yes None Brown Clear None None Normal Normal No NoneE0310 16 Sun Low Concrete Yes None Brown Clear None Sediment Normal Normal No NoneE0311 14 Sun Low Concrete Yes None Brown Clear None None Normal Normal No NoneE0312 Sun Low Unknown None None Clear None None None Normal No NoneE0313 Sun Low Concrete Unknown None None Clear None None None Normal No NoneE0315 16 Sun Low Concrete Yes Gas Brown Clear None None Normal Normal No NoneE0316 18 Sun Low Concrete Yes None Brown Clear None Sediment Normal Normal No NoneE0317 18 Sun Low Concrete Yes None Brown Clear None None Normal Normal No NoneE0317 18 Sun Low Concrete Yes None Brown Cloudy None None Normal Normal No NoneE0318 24 Sun Low Concrete Yes None Brown Clear None None Normal Normal No NoneE0319 26 Sun Low Concrete Yes None Brown Clear None Sediment Normal Normal No Under 100 E0320 26 Sun Medium Concrete Yes None Brown Clear None Sediment Excessive Normal No NoneE0321 36 Sun Low Concrete Yes None Brown Clear None None Normal Normal No NoneE0322 16 Sun Medium Concrete Yes None Brown Clear None Sediment Normal Spalling No NoneE0323 36 Sun Low Concrete Yes None Brown Clear None None Normal Normal No NoneE0324 36 Sun Low Concrete Yes None Brown Clear None Sediment Normal Normal No NoneE0325 18 Sun High Concrete Yes None Brown Clear Trash Sediment None Cracking Yes Under 100 E0326 6 Sun Low Concrete Yes None Brown Clear None Sediment Normal Normal No NoneE0327 12 Sun Medium Concrete Yes None Brown Clear Trash Sediment Normal Normal Yes Under 100 E0328 24 Sun Low Concrete Yes None Brown Cloudy None Sediment Normal Normal No NoneE0329 24 Sun Low Concrete Unknown None None Clear None Sediment Normal Normal No NoneE0330 16 Sun Low Concrete Yes None None Clear None Sediment Normal Normal No NoneE0331 Sun High Concrete Yes None Brown Cloudy None Sediment Normal Cracking Yes None




Pipe Material


drainage area



outfall?


E0332 24 Sun Low Concrete Yes None Brown Cloudy None Sediment Normal Normal No NoneF0301 Sun Low Yes None None Clear None None None Normal No NoneF0302 24 Sun Low Concrete Yes None Brown Clear None None Normal Normal No NoneF0303 24 Sun Low Concrete Yes None Brown Clear None None Normal Normal No NoneF0304 12 Sun Low Plastic Yes None Brown Clear None None Normal Normal No NoneF0305 18 Sun Medium Concrete Yes None Brown Clear None Sediment Normal Cracking No NoneF0306 10 Sun Low Plastic Yes None Brown Clear None Sediment Normal Normal No NoneF0307 12 Sun Low Plastic Yes None Brown Clear None None Normal Normal No NoneF0308 Sun Medium Concrete Yes None None Clear None Sediment None Cracking No NoneF0309 12 Sun Low Concrete Yes None None Clear None Sediment None Normal No NoneF0310 10 Sun Low Plastic Yes None Green Cloudy None Sediment Normal Normal No NoneF0311 10 Sun Low Plastic Yes None Green Cloudy None Sediment Normal Normal No NoneF0312 10 Sun Low Concrete Yes None None Clear Trash Sediment None Normal No NoneF0313 12 Sun Low Concrete Yes None Brown Clear None Sediment Normal Normal No NoneF0314 12 Sun Low Concrete Yes None Brown Clear None None Normal Normal No NoneF0315 10 Sun Low Concrete Yes None Brown Clear None None Normal Normal No NoneF0316 8 Sun Low Plastic Yes None Brown Clear None None Normal Normal No NoneF0318 Clouds Low Concrete Yes None Brown Clear None None Normal Normal No NoneF0319 10 Sun Low Concrete Yes None Brown Clear None Sediment Normal Normal No NoneF0320 24 Sun Low Concrete Yes Oil Green Clear None None Normal Normal No NoneF0321 Sun Low Unknown Oil None Clear None None None Normal No NoneF0322 Sun Low Unknown None None Clear None None Excessive Normal No NoneF0401 Rain Medium Concrete No None Brown Cloudy Trash Sediment Normal Spalling No Under 100 F0402 Rain Low Unknown None None Clear None None None Normal No NoneF0403 Rain Medium Concrete No None None Clear None Sediment Normal Cracking Yes Under 100 F0404 20 Rain Low Concrete No None None Clear None None Normal Normal Yes Under 100 F0405 20 Rain Medium Concrete No None None Clear Trash Sediment Normal Normal Yes Under 100 F0406 16 Rain Low Concrete No None None Clear None None Normal Spalling No NoneF0407 Rain Low Metal No None None Clear None None None Normal No Under 100 F0408 26 Rain Low Concrete No None None Cloudy None None Excessive Normal No NoneF0409 41 Rain Medium Concrete Yes None Brown Opaque Trash None Normal Normal No Under 100 F0410 13 Rain Medium Concrete Yes None Brown Opaque None Oil Normal Normal No Under 100 F0411 20 Rain Low Concrete Unknown None None Clear None None None Normal No NoneG0401 Sun Low Concrete Unknown None None Clear None Sediment Normal Normal No NoneG0402 Sun Low Yes None None Clear None None None Normal No NoneG0403 Sun Low Yes None None Clear Trash Sediment None Normal No NoneG0404 15 Sun Medium Plastic Yes None Brown Clear None Sediment Excessive Normal No NoneG0405 15 Sun Medium Plastic Yes None Brown Clear None Sediment Excessive Normal No NoneG0406 Sun Low Yes None None Clear None Sediment Excessive Normal No NoneG0407 Sun Low Yes None None Clear None Sediment Excessive Normal No None

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US 130

MERCER COUNTY 622

MERCER COUNTY 606

MERCER COUNTY 619

MERCER COUNTY 649

MERC

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MERCER COUNTY 620

MERCER COUNTY 614

Pond Run

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Hamilton!. High: 21!. Medium: 82!. Low: 158


Outfall Maintenance Prioritization

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US 130

MERCER COUNTY 622

MERCER COUNTY 606

MERCER COUNTY 619

MERCER COUNTY 649

MERC

ER C

OUNT

Y 616

MERCER COUNTY 620

MERCER COUNTY 614

Pond Run

Miry Run

Hamilton!. Corrosion: 8!. Cracking: 34!. Peeling: 2!. Spalling: 21!. Normal: 198


Outfall Pipe Condition

(OLE Frame)




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US 130

MERCER COUNTY 622

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MERC

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OUNT

Y 616

MERCER COUNTY 620

MERCER COUNTY 614

Pond Run

Miry Run


Hamilton!. High: 8!. Medium: 30!. Low: 43!. None: 182

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US 130

MERCER COUNTY 622

MERCER COUNTY 606

MERCER COUNTY 619

MERCER COUNTY 649

MERC

ER C

OUNT

Y 616

MERCER COUNTY 620

MERCER COUNTY 614

Pond Run

Miry Run

Hamilton!. Unstable: 43!. Stable: 218


Outfall Stability

(OLE Frame)




0 0.25 0.5Milesµ

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Documents

Hamilton Township in Mercer Countywater.rutgers.edu/Projects/Hamilton/Hamilton...C0216 C0215 C0213C0214 C0212 C0210 C0209 C0208 C0206 C0204 C0203 C0202 D0216 D0213D0214 D0211 B0203