44
HOLLYGROVE GREENLINE A project of the Carrollton-Hollygrove CDC with support from the Tulane City Center

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Page 1: Hollygrove Greenline

HOLLYGROVE GREENLINEA project of the Carrollton-Hollygrove CDC

with support from the Tulane City Center

Page 2: Hollygrove Greenline
Page 3: Hollygrove Greenline

1. History & Site Analysis2. Academic Designs3. Current Project Status a. Site Planning b. Landscape Design c.CostEstimates&Phasing4. Engineering & Water Management a. Surveying b.Research c. Rain Gardens

CONTENT

Page 4: Hollygrove Greenline
Page 5: Hollygrove Greenline

The Hollygrove Greenline is an initiative of the Carrollton-Hollygrove Community Development Corporation, and has received support from the Tulane City Center, Engineers Without Borders, Longue-Vue House & Gardens, Trinity Christian Community, Dana Brown & Associates, and other partners. The CHCDC is currently raising funds to implement the design vision completed by the Tulane City Center in partnership with the neighborhood.

More information is available at www.HollygroveGreenline.com 1

Page 6: Hollygrove Greenline

OVERVIEW

GREENLINE GOALS:

-Re-activate unused infrastructural space within the Hollygrove neighborhood-Educate the community on stormwater management strategies-Provide healthy, safe, enjoyable public outdoor spaces-Provide demonstration gardens for urban farming initiatives

Intersection with Monroe looking West

Page 7: Hollygrove Greenline

HISTORY

New Orleans and Lake Pontchartrain R.R. Track constructed along present day Monticello Street New Orleans, Jackson + Great

Northern R.R Lines Completed Along current Greenline Site.

Louisville, New Orleans and Texas Railroad Completes line from Memphis to New Orleans

New Orleans, Jackson + Great Northern R.R. Purchased by Illinois Central R.R.

Louisville, New Orleans + Texas R.R. Converted to Illinois Central Inbound route.

Illinois Central R.R. terminates service through Hollygrove

S. Claiborne St. Canal, Upperline Canal and Levee, Dublin Canal, Oleander St. Canal Constructed + Drainage Machine Installed at intersection of Dublin St and Oleander St.

17th St. Canal Constructed Along Palmetto Ave. Washington Street Canal reconstructed in Accordance with 1895 Drainage Plan of New Orleans

Claiborne Ave. Canal extended to Upperline Canal

Dublin St. Canal Reworked as Pipeline

Construction of subsurface drainage features on Hamilton, Hollgyrove, Misletoe and Nelson Streets. Oleander St. Canal Constructed

All canals covered with exception of Upperline Canal and 17th St. Canal

Culvert Installed along Illinois Central R.R. Site in Hollygrove

Carrollton annexed by New Orleans becoming the city’s 7th District.

Paul E. Dunbar School Built

Robinson Clinic Built

Levee constructed along Monticello ave in Carrollton

1853

1853

188418

74

1878

- 189

618

83

1929

1921

1954

1947

1937

1858

- 186

7

2003

1858

1892

1916 19

45

1955

AMERICAN CIVIL WARAMERICAN CIVIL WAR

NEIG

HBOR

HOOD

RAIL

ROAD

RA

ILRO

AD

RAIL

ROAD

8

HISTORY

A detail from the 1878 Hardee Map portrays the newly incorporated Carrollton district as a Cypress swamp through which the Illinois Central Railroad line passed. The recently completed Dublin Avenue Draining Machine is also shown.

1883 Robinson Map of the district shows a road network fully surveyed for occupied development. This part of town would not be drained for another 50 years.

New Orleans and Lake Pontchartrain R.R. Track constructed along present day Monticello Street New Orleans, Jackson + Great

Northern R.R Lines Completed Along current Greenline Site.

Louisville, New Orleans and Texas Railroad Completes line from Memphis to New Orleans

New Orleans, Jackson + Great Northern R.R. Purchased by Illinois Central R.R.

Louisville, New Orleans + Texas R.R. Converted to Illinois Central Inbound route.

Illinois Central R.R. terminates service through Hollygrove

S. Claiborne St. Canal, Upperline Canal and Levee, Dublin Canal, Oleander St. Canal Constructed + Drainage Machine Installed at intersection of Dublin St and Oleander St.

17th St. Canal Constructed Along Palmetto Ave. Washington Street Canal reconstructed in Accordance with 1895 Drainage Plan of New Orleans

Claiborne Ave. Canal extended to Upperline Canal

Dublin St. Canal Reworked as Pipeline

Construction of subsurface drainage features on Hamilton, Hollgyrove, Misletoe and Nelson Streets. Oleander St. Canal Constructed

All canals covered with exception of Upperline Canal and 17th St. Canal

Culvert Installed along Illinois Central R.R. Site in Hollygrove

Carrollton annexed by New Orleans becoming the city’s 7th District.

Paul E. Dunbar School Built

Robinson Clinic Built

Levee constructed along Monticello ave in Carrollton

1853

1853

188418

74

1878

- 189

618

83

1929

1921

1954

1947

1937

1858

- 186

7

2003

1858

1892

1916 19

45

1955

HURRICANE KATRINAWORLD WAR IIWORLD WAR IIWORLD WAR II9

The Hollygrove neighborhood was originally part of the McCarty Plantation, which was incorporated as the Town of Carrollton by the Louisiana Legislature in 1845. Construction of the New Orleans and Carrollton Railroad, which followed the current day streetcar line, increased settlement of Carrollton and in 1859 the town officially became a city.

From 1858 to 1871 a series of drainage improvements, including construction of Upperline Trail Race Canal (the current day Monticello Canal) and the Dublin St. drainage machine, laid the groundwork for later drainage infrastructure that ultimately permitted settlement of the Hollygrove neighborhood. In 1874 the City of Carrollton was annexed by the City of New Orleans. The citywide adoption of the 1895 Drainage Plan inaugurated the modern drainage system that is in use to this day. The area occupied by the present day Hollygrove neighborhood remained sparsely developed before the period of modern drainage. Rapid settlement of Hollygrove occurred in the 1920’s and 1930’s and by1965 the area had become a fully-occupied medium density residential community.

Hollygrove Timeline illustrates three major histories of the neighborhood’s development. Railroad, water infrastructure and neighborhood histories paint a telling picture of not only the community but also the development of the Greenline site over time.

New Orleans and Lake Pontchartrain R.R. Track constructed along present day Monticello Street New Orleans, Jackson + Great

Northern R.R Lines Completed Along current Greenline Site.

Louisville, New Orleans and Texas Railroad Completes line from Memphis to New Orleans

New Orleans, Jackson + Great Northern R.R. Purchased by Illinois Central R.R.

Louisville, New Orleans + Texas R.R. Converted to Illinois Central Inbound route.

Illinois Central R.R. terminates service through Hollygrove

S. Claiborne St. Canal, Upperline Canal and Levee, Dublin Canal, Oleander St. Canal Constructed + Drainage Machine Installed at intersection of Dublin St and Oleander St.

17th St. Canal Constructed Along Palmetto Ave. Washington Street Canal reconstructed in Accordance with 1895 Drainage Plan of New Orleans

Claiborne Ave. Canal extended to Upperline Canal

Dublin St. Canal Reworked as Pipeline

Construction of subsurface drainage features on Hamilton, Hollgyrove, Misletoe and Nelson Streets. Oleander St. Canal Constructed

All canals covered with exception of Upperline Canal and 17th St. Canal

Culvert Installed along Illinois Central R.R. Site in Hollygrove

Carrollton annexed by New Orleans becoming the city’s 7th District.

Paul E. Dunbar School Built

Robinson Clinic Built

Levee constructed along Monticello ave in Carrollton

1853

1853

188418

74

1878

- 189

618

83

1929

1921

1954

1947

1937

1858

- 186

7

2003

1858

1892

1916 19

45

1955

AMERICAN CIVIL WARAMERICAN CIVIL WAR

NEIG

HBOR

HOOD

RAIL

ROAD

RA

ILRO

AD

RAIL

ROAD

8

HISTORY

A detail from the 1878 Hardee Map portrays the newly incorporated Carrollton district as a Cypress swamp through which the Illinois Central Railroad line passed. The recently completed Dublin Avenue Draining Machine is also shown.

1883 Robinson Map of the district shows a road network fully surveyed for occupied development. This part of town would not be drained for another 50 years.

New Orleans and Lake Pontchartrain R.R. Track constructed along present day Monticello Street New Orleans, Jackson + Great

Northern R.R Lines Completed Along current Greenline Site.

Louisville, New Orleans and Texas Railroad Completes line from Memphis to New Orleans

New Orleans, Jackson + Great Northern R.R. Purchased by Illinois Central R.R.

Louisville, New Orleans + Texas R.R. Converted to Illinois Central Inbound route.

Illinois Central R.R. terminates service through Hollygrove

S. Claiborne St. Canal, Upperline Canal and Levee, Dublin Canal, Oleander St. Canal Constructed + Drainage Machine Installed at intersection of Dublin St and Oleander St.

17th St. Canal Constructed Along Palmetto Ave. Washington Street Canal reconstructed in Accordance with 1895 Drainage Plan of New Orleans

Claiborne Ave. Canal extended to Upperline Canal

Dublin St. Canal Reworked as Pipeline

Construction of subsurface drainage features on Hamilton, Hollgyrove, Misletoe and Nelson Streets. Oleander St. Canal Constructed

All canals covered with exception of Upperline Canal and 17th St. Canal

Culvert Installed along Illinois Central R.R. Site in Hollygrove

Carrollton annexed by New Orleans becoming the city’s 7th District.

Paul E. Dunbar School Built

Robinson Clinic Built

Levee constructed along Monticello ave in Carrollton

1853

1853

188418

74

1878

- 189

618

83

1929

1921

1954

1947

1937

1858

- 186

7

2003

1858

1892

1916 19

45

1955

AMERICAN CIVIL WARAMERICAN CIVIL WAR

NEIG

HBOR

HOOD

RAIL

ROAD

RA

ILRO

AD

RAIL

ROAD

8

HISTORY

A detail from the 1878 Hardee Map portrays the newly incorporated Carrollton district as a Cypress swamp through which the Illinois Central Railroad line passed. The recently completed Dublin Avenue Draining Machine is also shown.

1883 Robinson Map of the district shows a road network fully surveyed for occupied development. This part of town would not be drained for another 50 years.

Page 8: Hollygrove Greenline

12

“The first night I lived in my home in Hollygrove I was startled out of bed when the horn from the train blew.”

“We used to tell the time of day by the sounds of the trains. Twice a day, the engine, and the whistle, would let us know the time.”

MEMORIES OF THE RAILROAD

13

“In the good old days my sisters and I used to play on the railroad embankment.”

“People used to wave at you in your backyard from the train, and we would wave back.”

“Anybody taking the train to New Orleans had to pass through this neighborhood.”

“Black folks from Hollygrove had to sit in the cars called ‘Smokin’ Marys,’ right behind the

locomotive coal engine.”

“In the good old days my sisters and I used to play on the railroad embankment.”

“The first night I lived in my home in Hollygrove I was startled out of bed when the horn from the train blew.”

“People used to wave at you in your backyard from the train, and we would wave back.”

“Anybody taking the train to New Orleans had to pass through this neighborhood.”

“We used to tell the time of day by the sounds of the trains. Twice a day, the engine, and the whistle, would let us know the time.”

MEMORIES OF THE RAIL

Page 9: Hollygrove Greenline

N

4

S. Carrollton AvenueCarrollton Boosters playing fields and Cuccia-Byrnes playground complex

17th Street/Monticello Canal Airline DriveEarhart Boulevard

HGM&F

Project Site

SITE LOCATION

Page 10: Hollygrove Greenline

OLIVE ST

Hollygrove Market & Farm

s

FORSHEY ST

MONROE

ST

32 -

Leon

idas

LEONID

AS ST

EXISTING CONDITIONS

N

Page 11: Hollygrove Greenline

SEWERAGE AND WATER BOARD

GOALS-Water management and wetlands restoration education

CONSTRAINTS-No permanent structures (without prior approval)-No trees (without prior approval

Page 12: Hollygrove Greenline

JOS MACALUSOREALTY CO INC2924 MONROE STNEW ORLEANS, LA 70118

JOS MACALUSOREALTY CO INC2924 MONROE STNEW ORLEANS, LA 70118

JOS MACALUSOREALTY CO INC2924 MONROE STNEW ORLEANS, LA 70118

WYRE, WILLIS JR 145 BISHOP DRWESTWEGO, LA 70094

WYRE LEO SR 3310 MONROE STNEW ORLEANS, LA 70118

WYRE LEO SR 3119 MONROE STNEW ORLEANS, LA 70118

JACKSON FANNIE 3334 MONROE STNEW ORLEANS, LA 70118

SAVOIE CHARLES 8714 OLIVE STNEW ORLEANS, LA 70118

SAVOIE CHARLES 8714 OLIVE STNEW ORLEANS, LA 70118

SCALES BURNELL SR 8718 OLIVE STNEW ORLEANS, LA 70118

WALKER LOUIS CAMPBELL RDJAYESS, MS 3964

LAMARC ENTERPRISES, INC. 5743 LOUIS PRIMA DR.WNEW ORLEANS, LA 70128

LAMARC ENTERPRISES, INC. 5743 LOUIS PRIMA DR.WNEW ORLEANS, LA 70128

MIXON, JOHNNY T & MIXON, DENISE R 3319 EAGLE STNEW ORLEANS, LA 70118

YOUNG HESTER W ETAL

3321 EAGLE STNEW ORLEANS, LA 70118

MIXON JOHNNY 3319 EAGLE ST

NEW ORLEANS, LA 70118

BANKS ALONIA 3313 EAGLE ST

NEW ORLEANS, LA 70118

BANKS ALONIA 3313 EAGLE ST

NEW ORLEANS, LA 70118

BANKS TYRONE 3313 EAGLE ST

NEW ORLEANS, LA 70118

GULF COAST BANK &TRUST COMPANY C/O ROBERT A MATHIS-ATTY212 VETERANS BLVDMETAIRIE, LA 70005

SMITH BENNIE S3422 JOLIET STNEW ORLEANS, LA 70118

NORA1409 ORETHA CASTLE HALEY BL

NEW ORLEANS, LA 70113

FRANKLIN SEAN Wc/o THE CITY OF NEW ORLEANS

1300 PERDIDO STNEW ORLEANS, LA 70112

NORA1409 ORETHA CASTLE HALEY BL

NEW ORLEANS, LA 70113

NORA1409 ORETHA CASTLE HALEY BL

NEW ORLEANS, LA 70113

NORA1409 ORETHA CASTLE HALEY BL

NEW ORLEANS, LA 70113

MULTIPLE OWNERSNO INFORMATION AVAILABLE FROM TAX ASSESOR

THURMAN WILLIAM H 8603 FORSHEY ST

NEW ORLEANS, LA 70118

TIPPEN ALEXPO BOX 13140

NEW ORLEANS, LA 70185HODGE TOMMIE JR8618 FORSHEY ST

NEW ORLEANS, LA 70118

ALEXANDER, MARGURITE8635 FORSHEY ST

NEW ORLEANS, LA 70118TURNER, CHARLES E

3219 LEONIDAS STNEW ORLEANS, LA 70118

BRUMFIELD, CAROL DC/O NORBERT DOUNSEROUX

3219 LEONIDAS STNEW ORLEANS, LA 70118

CITY OF NEW ORLEANS625 ST JOSEPH ST ROOM 247NEW ORLEANS, LA 70165

CITY OF NEW ORLEANS625 ST JOSEPH ST ROOM 247NEW ORLEANS, LA 70165

8641 Forshey

8517 Forshey

8701 Forshey

86458629

86218619

86158611

8603

3314

Leon

idas S

t

3300

JOILE

T ST

3324

Leon

idas S

t

3319

Mon

roe St

3310

3316

3321

3319

3313

3309

3305

Eagle

St

3322

3334

Mon

roe St

8600 Olive St

3304 Joliet St

8604 Olive St

8704

8710

8714

8718

8722

8724

8728

8736 Olive St

Ownership of Neighboring Properties

Page 13: Hollygrove Greenline

Urban Farm

Public Park

Playground

Pavilion

Stormwater Management

Community Garden Agriculture Farm Market Grow Learn Eat

Walk Run Bike Skate Relax Read Sit Picnic

Climb Swing Hang Jump Run Play

Sit Gather Listen Watch Learn Picnic Concert Market Event

Delay Collect Move Store Filter Reuse

Urban Farm

Public Park

Playground

Pavilion

Stormwater Management

Community Garden Agriculture Farm Market Grow Learn Eat

Walk Run Bike Skate Relax Read Sit Picnic

Climb Swing Hang Jump Run Play

Sit Gather Listen Watch Learn Picnic Concert Market Event

Delay Collect Move Store Filter Reuse

SITE STRATEGIES: Neighborhood Vision

Page 14: Hollygrove Greenline
Page 15: Hollygrove Greenline

Students of the Tulane School of Architecture conducted academic design analysis at the GreenLine site, creating a diverse series of designs that investigated the history of the site, the community’s desire for active, programmed open space, and introducing landscaping to help make the site a pleasant, occupiable public space to be enjoyed by Hollygrove residents and adjacent neighborhoods alike. 2

Page 16: Hollygrove Greenline

Monroe

Eagle

Joliet

Leonid

as

Forshey Olive

DESIGN POTENTIALS: Remembering the Rail

Emma HoppstockKevin JacksonAmanda Rosales

Page 17: Hollygrove Greenline

DESIGN POTENTIALS: Remembering the Rail

Parking Site Storage Facility

7

STARTING POINT

Farm with Classroom Docked

8

URBAN FARMING

Urban Farm Section

9

Urban Farm Daily Use

Corner Site Gathering Point with Classroom docked for neighborhood concert

10

PUBLIC GATHERING

Corner Site Section

11

Corner Site Gathering Point

Page 18: Hollygrove Greenline

Monroe

Eagle

Joliet

Leonid

as

Forshey Olive

DESIGN POTENTIALS: Sculpted Earth

Garrett DieboldEllanny PageRyan KeszczykVanessa Smith-Torres

Page 19: Hollygrove Greenline

99

STRUCTURES

BOARDWALK

THOROUGHFARE

EARTH

COMBINED LAYERS

RAINGARDENS/BIOSWALES

LEARN

CONNECT

PERFORMINSTRUCT

WATCH

RELAX SIT

RELAXSIT

GROWGROWLEARN

INSTRUCTGROW

LEARNINSTRUCT

SELLBUYINTERACT CELEBRATE

LEARN

CONNECT

PERFORMINSTRUCT

WATCH

RELAX SIT

RELAXSIT

GROWGROWLEARN

INSTRUCTGROW

LEARNINSTRUCT

SELLBUYINTERACT CELEBRATE LEARNPLAY RELAX MOVE SHADEGROW

PEEL

GROUND

This proposal for the Hollygrove Greenline Park is based on the idea of water management education. Other goals of the design are to create a compelling outdoor space with flexibility as a central component, providing an emblem of neighborhood identity with a framework for adaptation by the local users. With a starting point of the unique mounded topography of the Greenline, the park is left almost completely without built structure, instead using formed earth to activate the site and direct the flow of storm water into a series of vegetated swales which provide a focal point of the park.

By dividing the site into three overlapping zones, space is allocated for each of the program requirements while maintaining flexibility in the usage. The southern zone consists of interconnected bioswale and elevated walkway emphasizing the educational component as users traverse the site. A ten-foot wide flat zone runs through the middle of the site which accommodates a wide range of activity while also allowing a passageway for potential vehicle usage. The third zone along the north edge of the site features a series of elevated spaces providing a framework for program activities, future expansion of community gardens, and a dynamic play space, while assisting in directing stormwater flow. By delineating specific “wet and “dry” zones, flexible open spaces are created and framed with water-responsive gardens.

In order to emphasize the idea of water management, the conceptual action of “peeling” the ground surface is used to enhance the relationship between the vegetated swale, boardwalk, and functional lawn space. As strips of surface material dip down into the swales, and up into elevated walkways above the swales, attention is drawn to the control of storm water and the vegetation which utilizes the runoff in rain gardens. This is further emphasized by the use of bright color on the undersides of the “peels” and on the thin strips of steel retaining walls. The built materials on the Greenline are minimal, and modular sections of boardwalk and thin metal retaining walls can be easily removed and stacked for convenient storage in case the site is used for Sewage and Water Board storage in the future.

In keeping with the idea of flexible usage for the Greenline strip, the education center, restrooms and storage are located on an adjacent site. This organization enhances the continuity of the Greenline and provides opportunity for different uses in the future. In this setting, the building also acts as an entry gate for the park, providing educational points of interest. By using a single, flexible structure for multiple program components, the flexibility of the site is maintained. The structure consists primarily of a classroom space which opens into a stage looking into the site. This composition allows for events of varying scales to be accommodated, as the audience can expand from small, indoor gatherings to a larger outdoor entertaining. The structure also serves as a shaded bus stop, adjacent to community information boards, a small lobby space for educational exhibits, restrooms and storage for maintenance and stackable furniture.

FORSHEY

MONROE

OLIVE

LEONIDAS

SECTION DETAILS

SECTION PERSPECTIVE

SECTION A - THROUGH BOARDWALK

SECTION B - THROUGH THOROUGHFARE

1/8” = 1’

THROUGH PERFORMANCE AND VIEWING AREA

SHANGHAI HOUTAN PARKTURENSCAPE

FIRST PRINCIPLE-EARTH AS MATERIALFREEFORM AND DEFORM

GENERAL MAISTER MEMORIAL PARKBRUTO LANDSCAPE ARCHITECTURE

1/16” = 1’

1/16” = 1’

DIFFERENT VIGNETTES OF CIRCULATION THROUGH SITE FROM LEONIDAS TO MONROE. EACH HIGH-LIGHTS VARIOUS ACTIVITIES THAT OCCUR ALONG THE CONNECTIVE PATH.

A COVERED OUTDOOR STAGE PROVIDES A SPACE FOR PERFORMANCE AND EDUCATION FOR THE AREA. THE PEELED EARTH ALLOWS FOR RAKED SEATING AND SHADE STRUCTURES ALLOW FOR COMFORTABLE VIEWING.

OPEN SPACE AND FORMED EARTH CREATE A ZONE FOR INTERACTION AMONG THE NEIGHBOORHOOD COMMUNITY. THE ZONE COINCIDES WITH A LIN-EAR BOARDWALK HOVERED ABOVE AN INFORMA-TIONAL RAINGARDEN.

BEGINNING WITH AN AREA FOR SPECIFIC PLANT-ING AND GARDENING, THE COMMUNITY CAN PARTNER WITH LOCAL MARKETS AND FARMERS TO PRODUCE AND SELL GOODS. GROWN AT THE SITE.

GREENLINE CONNECTIONREVITALIZING AN AXIS THROUGH HOLLYGROVE

STRUCTURES

BOARDWALK

THOROUGHFARE

EARTH

COMBINED LAYERS

RAINGARDENS/BIOSWALES

LEARN

CONNECT

PERFORMINSTRUCT

WATCH

RELAX SIT

RELAXSIT

GROWGROWLEARN

INSTRUCTGROW

LEARNINSTRUCT

SELLBUYINTERACT CELEBRATE

LEARN

CONNECT

PERFORMINSTRUCT

WATCH

RELAX SIT

RELAXSIT

GROWGROWLEARN

INSTRUCTGROW

LEARNINSTRUCT

SELLBUYINTERACT CELEBRATE LEARNPLAY RELAX MOVE SHADEGROW

PEEL

GROUND

This proposal for the Hollygrove Greenline Park is based on the idea of water management education. Other goals of the design are to create a compelling outdoor space with flexibility as a central component, providing an emblem of neighborhood identity with a framework for adaptation by the local users. With a starting point of the unique mounded topography of the Greenline, the park is left almost completely without built structure, instead using formed earth to activate the site and direct the flow of storm water into a series of vegetated swales which provide a focal point of the park.

By dividing the site into three overlapping zones, space is allocated for each of the program requirements while maintaining flexibility in the usage. The southern zone consists of interconnected bioswale and elevated walkway emphasizing the educational component as users traverse the site. A ten-foot wide flat zone runs through the middle of the site which accommodates a wide range of activity while also allowing a passageway for potential vehicle usage. The third zone along the north edge of the site features a series of elevated spaces providing a framework for program activities, future expansion of community gardens, and a dynamic play space, while assisting in directing stormwater flow. By delineating specific “wet and “dry” zones, flexible open spaces are created and framed with water-responsive gardens.

In order to emphasize the idea of water management, the conceptual action of “peeling” the ground surface is used to enhance the relationship between the vegetated swale, boardwalk, and functional lawn space. As strips of surface material dip down into the swales, and up into elevated walkways above the swales, attention is drawn to the control of storm water and the vegetation which utilizes the runoff in rain gardens. This is further emphasized by the use of bright color on the undersides of the “peels” and on the thin strips of steel retaining walls. The built materials on the Greenline are minimal, and modular sections of boardwalk and thin metal retaining walls can be easily removed and stacked for convenient storage in case the site is used for Sewage and Water Board storage in the future.

In keeping with the idea of flexible usage for the Greenline strip, the education center, restrooms and storage are located on an adjacent site. This organization enhances the continuity of the Greenline and provides opportunity for different uses in the future. In this setting, the building also acts as an entry gate for the park, providing educational points of interest. By using a single, flexible structure for multiple program components, the flexibility of the site is maintained. The structure consists primarily of a classroom space which opens into a stage looking into the site. This composition allows for events of varying scales to be accommodated, as the audience can expand from small, indoor gatherings to a larger outdoor entertaining. The structure also serves as a shaded bus stop, adjacent to community information boards, a small lobby space for educational exhibits, restrooms and storage for maintenance and stackable furniture.

FORSHEY

MONROE

OLIVE

LEONIDAS

SECTION DETAILS

SECTION PERSPECTIVE

SECTION A - THROUGH BOARDWALK

SECTION B - THROUGH THOROUGHFARE

1/8” = 1’

THROUGH PERFORMANCE AND VIEWING AREA

SHANGHAI HOUTAN PARKTURENSCAPE

FIRST PRINCIPLE-EARTH AS MATERIALFREEFORM AND DEFORM

GENERAL MAISTER MEMORIAL PARKBRUTO LANDSCAPE ARCHITECTURE

1/16” = 1’

1/16” = 1’

DIFFERENT VIGNETTES OF CIRCULATION THROUGH SITE FROM LEONIDAS TO MONROE. EACH HIGH-LIGHTS VARIOUS ACTIVITIES THAT OCCUR ALONG THE CONNECTIVE PATH.

A COVERED OUTDOOR STAGE PROVIDES A SPACE FOR PERFORMANCE AND EDUCATION FOR THE AREA. THE PEELED EARTH ALLOWS FOR RAKED SEATING AND SHADE STRUCTURES ALLOW FOR COMFORTABLE VIEWING.

OPEN SPACE AND FORMED EARTH CREATE A ZONE FOR INTERACTION AMONG THE NEIGHBOORHOOD COMMUNITY. THE ZONE COINCIDES WITH A LIN-EAR BOARDWALK HOVERED ABOVE AN INFORMA-TIONAL RAINGARDEN.

BEGINNING WITH AN AREA FOR SPECIFIC PLANT-ING AND GARDENING, THE COMMUNITY CAN PARTNER WITH LOCAL MARKETS AND FARMERS TO PRODUCE AND SELL GOODS. GROWN AT THE SITE.

GREENLINE CONNECTIONREVITALIZING AN AXIS THROUGH HOLLYGROVE

STRUCTURES

BOARDWALK

THOROUGHFARE

EARTH

COMBINED LAYERS

RAINGARDENS/BIOSWALES

LEARN

CONNECT

PERFORMINSTRUCT

WATCH

RELAX SIT

RELAXSIT

GROWGROWLEARN

INSTRUCTGROW

LEARNINSTRUCT

SELLBUYINTERACT CELEBRATE

LEARN

CONNECT

PERFORMINSTRUCT

WATCH

RELAX SIT

RELAXSIT

GROWGROWLEARN

INSTRUCTGROW

LEARNINSTRUCT

SELLBUYINTERACT CELEBRATE LEARNPLAY RELAX MOVE SHADEGROW

PEEL

GROUND

This proposal for the Hollygrove Greenline Park is based on the idea of water management education. Other goals of the design are to create a compelling outdoor space with flexibility as a central component, providing an emblem of neighborhood identity with a framework for adaptation by the local users. With a starting point of the unique mounded topography of the Greenline, the park is left almost completely without built structure, instead using formed earth to activate the site and direct the flow of storm water into a series of vegetated swales which provide a focal point of the park.

By dividing the site into three overlapping zones, space is allocated for each of the program requirements while maintaining flexibility in the usage. The southern zone consists of interconnected bioswale and elevated walkway emphasizing the educational component as users traverse the site. A ten-foot wide flat zone runs through the middle of the site which accommodates a wide range of activity while also allowing a passageway for potential vehicle usage. The third zone along the north edge of the site features a series of elevated spaces providing a framework for program activities, future expansion of community gardens, and a dynamic play space, while assisting in directing stormwater flow. By delineating specific “wet and “dry” zones, flexible open spaces are created and framed with water-responsive gardens.

In order to emphasize the idea of water management, the conceptual action of “peeling” the ground surface is used to enhance the relationship between the vegetated swale, boardwalk, and functional lawn space. As strips of surface material dip down into the swales, and up into elevated walkways above the swales, attention is drawn to the control of storm water and the vegetation which utilizes the runoff in rain gardens. This is further emphasized by the use of bright color on the undersides of the “peels” and on the thin strips of steel retaining walls. The built materials on the Greenline are minimal, and modular sections of boardwalk and thin metal retaining walls can be easily removed and stacked for convenient storage in case the site is used for Sewage and Water Board storage in the future.

In keeping with the idea of flexible usage for the Greenline strip, the education center, restrooms and storage are located on an adjacent site. This organization enhances the continuity of the Greenline and provides opportunity for different uses in the future. In this setting, the building also acts as an entry gate for the park, providing educational points of interest. By using a single, flexible structure for multiple program components, the flexibility of the site is maintained. The structure consists primarily of a classroom space which opens into a stage looking into the site. This composition allows for events of varying scales to be accommodated, as the audience can expand from small, indoor gatherings to a larger outdoor entertaining. The structure also serves as a shaded bus stop, adjacent to community information boards, a small lobby space for educational exhibits, restrooms and storage for maintenance and stackable furniture.

FORSHEY

MONROE

OLIVE

LEONIDAS

SECTION DETAILS

SECTION PERSPECTIVE

SECTION A - THROUGH BOARDWALK

SECTION B - THROUGH THOROUGHFARE

1/8” = 1’

THROUGH PERFORMANCE AND VIEWING AREA

SHANGHAI HOUTAN PARKTURENSCAPE

FIRST PRINCIPLE-EARTH AS MATERIALFREEFORM AND DEFORM

GENERAL MAISTER MEMORIAL PARKBRUTO LANDSCAPE ARCHITECTURE

1/16” = 1’

1/16” = 1’

DIFFERENT VIGNETTES OF CIRCULATION THROUGH SITE FROM LEONIDAS TO MONROE. EACH HIGH-LIGHTS VARIOUS ACTIVITIES THAT OCCUR ALONG THE CONNECTIVE PATH.

A COVERED OUTDOOR STAGE PROVIDES A SPACE FOR PERFORMANCE AND EDUCATION FOR THE AREA. THE PEELED EARTH ALLOWS FOR RAKED SEATING AND SHADE STRUCTURES ALLOW FOR COMFORTABLE VIEWING.

OPEN SPACE AND FORMED EARTH CREATE A ZONE FOR INTERACTION AMONG THE NEIGHBOORHOOD COMMUNITY. THE ZONE COINCIDES WITH A LIN-EAR BOARDWALK HOVERED ABOVE AN INFORMA-TIONAL RAINGARDEN.

BEGINNING WITH AN AREA FOR SPECIFIC PLANT-ING AND GARDENING, THE COMMUNITY CAN PARTNER WITH LOCAL MARKETS AND FARMERS TO PRODUCE AND SELL GOODS. GROWN AT THE SITE.

GREENLINE CONNECTIONREVITALIZING AN AXIS THROUGH HOLLYGROVE

STRUCTURES

BOARDWALK

THOROUGHFARE

EARTH

COMBINED LAYERS

RAINGARDENS/BIOSWALES

LEARN

CONNECT

PERFORMINSTRUCT

WATCH

RELAX SIT

RELAXSIT

GROWGROWLEARN

INSTRUCTGROW

LEARNINSTRUCT

SELLBUYINTERACT CELEBRATE

LEARN

CONNECT

PERFORMINSTRUCT

WATCH

RELAX SIT

RELAXSIT

GROWGROWLEARN

INSTRUCTGROW

LEARNINSTRUCT

SELLBUYINTERACT CELEBRATE LEARNPLAY RELAX MOVE SHADEGROW

PEEL

GROUND

This proposal for the Hollygrove Greenline Park is based on the idea of water management education. Other goals of the design are to create a compelling outdoor space with flexibility as a central component, providing an emblem of neighborhood identity with a framework for adaptation by the local users. With a starting point of the unique mounded topography of the Greenline, the park is left almost completely without built structure, instead using formed earth to activate the site and direct the flow of storm water into a series of vegetated swales which provide a focal point of the park.

By dividing the site into three overlapping zones, space is allocated for each of the program requirements while maintaining flexibility in the usage. The southern zone consists of interconnected bioswale and elevated walkway emphasizing the educational component as users traverse the site. A ten-foot wide flat zone runs through the middle of the site which accommodates a wide range of activity while also allowing a passageway for potential vehicle usage. The third zone along the north edge of the site features a series of elevated spaces providing a framework for program activities, future expansion of community gardens, and a dynamic play space, while assisting in directing stormwater flow. By delineating specific “wet and “dry” zones, flexible open spaces are created and framed with water-responsive gardens.

In order to emphasize the idea of water management, the conceptual action of “peeling” the ground surface is used to enhance the relationship between the vegetated swale, boardwalk, and functional lawn space. As strips of surface material dip down into the swales, and up into elevated walkways above the swales, attention is drawn to the control of storm water and the vegetation which utilizes the runoff in rain gardens. This is further emphasized by the use of bright color on the undersides of the “peels” and on the thin strips of steel retaining walls. The built materials on the Greenline are minimal, and modular sections of boardwalk and thin metal retaining walls can be easily removed and stacked for convenient storage in case the site is used for Sewage and Water Board storage in the future.

In keeping with the idea of flexible usage for the Greenline strip, the education center, restrooms and storage are located on an adjacent site. This organization enhances the continuity of the Greenline and provides opportunity for different uses in the future. In this setting, the building also acts as an entry gate for the park, providing educational points of interest. By using a single, flexible structure for multiple program components, the flexibility of the site is maintained. The structure consists primarily of a classroom space which opens into a stage looking into the site. This composition allows for events of varying scales to be accommodated, as the audience can expand from small, indoor gatherings to a larger outdoor entertaining. The structure also serves as a shaded bus stop, adjacent to community information boards, a small lobby space for educational exhibits, restrooms and storage for maintenance and stackable furniture.

FORSHEY

MONROE

OLIVE

LEONIDAS

SECTION DETAILS

SECTION PERSPECTIVE

SECTION A - THROUGH BOARDWALK

SECTION B - THROUGH THOROUGHFARE

1/8” = 1’

THROUGH PERFORMANCE AND VIEWING AREA

SHANGHAI HOUTAN PARKTURENSCAPE

FIRST PRINCIPLE-EARTH AS MATERIALFREEFORM AND DEFORM

GENERAL MAISTER MEMORIAL PARKBRUTO LANDSCAPE ARCHITECTURE

1/16” = 1’

1/16” = 1’

DIFFERENT VIGNETTES OF CIRCULATION THROUGH SITE FROM LEONIDAS TO MONROE. EACH HIGH-LIGHTS VARIOUS ACTIVITIES THAT OCCUR ALONG THE CONNECTIVE PATH.

A COVERED OUTDOOR STAGE PROVIDES A SPACE FOR PERFORMANCE AND EDUCATION FOR THE AREA. THE PEELED EARTH ALLOWS FOR RAKED SEATING AND SHADE STRUCTURES ALLOW FOR COMFORTABLE VIEWING.

OPEN SPACE AND FORMED EARTH CREATE A ZONE FOR INTERACTION AMONG THE NEIGHBOORHOOD COMMUNITY. THE ZONE COINCIDES WITH A LIN-EAR BOARDWALK HOVERED ABOVE AN INFORMA-TIONAL RAINGARDEN.

BEGINNING WITH AN AREA FOR SPECIFIC PLANT-ING AND GARDENING, THE COMMUNITY CAN PARTNER WITH LOCAL MARKETS AND FARMERS TO PRODUCE AND SELL GOODS. GROWN AT THE SITE.

GREENLINE CONNECTIONREVITALIZING AN AXIS THROUGH HOLLYGROVE

DESIGN POTENTIALS: Sculpted Earth

Page 20: Hollygrove Greenline

Monroe

Eagle

Joliet

Leonid

as

Forshey Olive

DESIGN POTENTIALS: Deconstructed Shotgun and Tree Nursery

Ann AschermanDorothy ShepardMegan Webb

Page 21: Hollygrove Greenline

6

Entrance on Leonidas Street

Rain GardenStormwater/Wetland Revitalization

Tree NurseryStormwater/Wetland Revitalization

Tree Nursery Irrigation Demonstration

On arrival at the site, visitors are first introduced to the concept of a rain garden. Bioswales on either side of the site are used to move water to the rain gardens, which are planted with native plant species. Moving through the site, the visitor is able to pause at a pavilion within the tree farm, where they can learn about techniques of water collection and irrigation. In the farm, trees will be grown as saplings on the site, to later be transplanted strategically around the city to address a need for shade.

8

Demonstration Garden and Playspace

PlayspaceDemonstration/Community Garden

Urban Agriculture

The path continues across the street to a small park and urban farm, intended for use by the immediate community.

8

Demonstration Garden and Playspace

PlayspaceDemonstration/Community Garden

Urban Agriculture

The path continues across the street to a small park and urban farm, intended for use by the immediate community.

7

Outdoor Classroom/Event Pavilion

Outdoor Classroom/Event PavilionStormwater/Reclaimed Materials

Demonstration WallStormwater/Drainage

Land sloped away from houseprevents water from settling along the wall or under thehouse

Next, a demonstration wall illustrates how landscape techniques can protect the home from water. At the edge of the central block is the deconstructed shotgun. The structure uses a lightweight foundation system that makes the classroom easy to remove in the event that the Sewage and Water Board needs to occupy the site. Wood framing is used to echo materials used in a typical New Orleans shotgun, and the back wall has been replaced with a perforated green wall that will provide shade in the summer and allow views into the bioswale below.

DESIGN POTENTIALS: Deconstructed Shotgun and Tree Nursery

6

Entrance on Leonidas Street

Rain GardenStormwater/Wetland Revitalization

Tree NurseryStormwater/Wetland Revitalization

Tree Nursery Irrigation Demonstration

On arrival at the site, visitors are first introduced to the concept of a rain garden. Bioswales on either side of the site are used to move water to the rain gardens, which are planted with native plant species. Moving through the site, the visitor is able to pause at a pavilion within the tree farm, where they can learn about techniques of water collection and irrigation. In the farm, trees will be grown as saplings on the site, to later be transplanted strategically around the city to address a need for shade.

Page 22: Hollygrove Greenline
Page 23: Hollygrove Greenline

3Recent designs have brought the project closer to fruition, part of an ongoing partnership with the Tulane City Center and School of Architecture. Final designs are undergoing detailed cost analysis and will be presented to the neighborhood in October of 2013. Once approved, the CHCDC will continue in earnest to raise funds for implementation. Preliminary cost estimates are included here for reference.

Page 24: Hollygrove Greenline

MARKING THE SITE

Page 25: Hollygrove Greenline

fenced storage

rain garden

OLIVE ST

Hollygrove Market & Farm

s

FORSHEY ST

MONROE

ST

32 -

Leon

idas

LEONID

AS ST

stairsdown

ramp

down

rain garden

bioswale

bioswaledemonstration gardens

path to NORA lot

concrete ribbon driveconcrete ribbon drive

gravel path

grass gathering area

grass

grass

grass

concrete ribbon drive

gravel pathgravel path

gravel pathdemonstration gardens

grass16” retaining wall

16“ retaining wall

ramp down

stairs down

grass gathering area

6’ fence

16” bench and signage

6’ fence

16” bench and signage

street paint

street paint

Greenline Master PlanPhase 1Draft July 31, 2013

N

Page 26: Hollygrove Greenline
Page 27: Hollygrove Greenline

Yank

ee W

eed

Laur

el O

ak

Gra

ss

Recy

cled

Cru

shed

Con

-cr

ete

Ligh

t

Mic

roG

reen

s

Woo

d Fe

nce

58'

6' 13'-6" 1'-6" 2' 2'-6" 3' 2'-6" 2' 1' 3' 3' 4' 3' 3' 1' 4'-6" 2'-6"

Prop

erty

Lin

e

New Swale Permeable Walking PathExisting SwaleDemonstration Gardens

Greenline Master PlanZone #Draft August 3, 2013 1/4” = 1’=0”

Page 28: Hollygrove Greenline
Page 29: Hollygrove Greenline
Page 30: Hollygrove Greenline
Page 31: Hollygrove Greenline
Page 32: Hollygrove Greenline

ITEM DESCRIPTION QTY. UNIT ITEM COST TOTAL COST DIVISION COST

DIVISION 01 EXISTING CONDITIONSSURVEYSSite Survey 1 Each 5,000.00$ 5,000.00$

DEMOLITIONTree Protective Fencing LF 16.00$ $Concrete Removal 42 Sq. Yd. 14.00$ 588.00$Fence Removal LF 4.00$ $

5,588.00$ DIVISION 02 EARTHWORK

SITE CLEARINGTree and Shrub Removal

Grubbing 3,100 Sq. Yd. 1.00$ 3,100.00$Tree and Stump Removal 0 Each 600.00$ $

EARTH MOVINGRough Grading 3,100 Sq. Yd. 2.00$ 6,200.00$Fine Grading 427 Sq. Yd. 5.00$ 2,136.18$

11,436.18$ DIVISION 03 EXTERIOR IMPROVEMENTS

BASES, BALLASTS, and PAVINGRigid PavingConcrete Drive (7" Thick) 2,376 Sq. Ft. 7.50$ 17,820.00$Concrete Edge 12" 340 Sq. Ft. 5.00$ 1,700.00$Concrete Wall 12" 493 LF 125.00$ 61,625.00$Concrete Wall 6" (Planters) 220 LF 50.00$ 11,000.00$Concrete Paving (Stairs & Landing) 1,256 Sq. Ft. 7.50$ 9,420.00$Concrete Paving (Sidewalk, 4" Thick) 1,048 Sq. Ft. 5.00$ 5,240.00$Scoring Lines 1,404 LF 0.50$ 702.00$Gabions 437 LF 90.00$ 39,330.00$Steel Edgeing 288 LF 10.00$ 2,880.00$Corten Steel 99 Sq. Ft. 28.00$ 2,772.00$Crushed Brown Aggragate 4" Deep 6,860 Sq.Ft. 1.50$ 10,290.00$

SITE IMPROVEMENTSThermoplastic Paint 1,247 Sq. ft. 2.00$ 2494SignageEntry Signage 3 Each 3,000.00$ 9,000.00$

Fences and GatesOrnamental Fencing 0 LF 125.00$ $Chain Link Fencing 0 LF 25.00$ $

STORMWATER MANAGEMENTStormwater Management

Excavating (Hauling offsite included) 206 Cu. Yd. 18.00$ 3,708.34$Bioswale Soil 206 Cu. Yd. 40.00$ 8,240.00$Bioswale Plantings (1 Gal, 24" OC) 3,846 Sq. Ft. 3.00$ 11,536.50$

PLANTINGPlanting PreparationPlanting Soil 11 Cu. Yd. 45.00$ 495.00$Top Dress Mulch 422 Sq. Yd. 5.00$ 2,110.00$

Turf and GrassesHydro seeding 0.2 Acres 4,000.00$ 844.81$

PlantsLarge Street Trees 0 Each 500.00$ $Medium Shade Trees 51 Each 300.00$ 15,300.00$Small Boarder Trees 0 Each 200.00$ $

216,507.65$ DIVISION 05 BUILDING

Square Feet Sq. Ft. 250.00$ $-$

DIVISION 06 FURNISHINGSSITE FURNISHINGSBicycle Racks 0 Each 500.00$ $Trash and Litter Receptors 0 Each 400.00$ $Picnic Pavilions 0 Each 20,000.00$ $Picnic Tables 0 Each 3,000.00$ $Benches 0 Each 1,500.00$ $

-$ DIVISION 07 ELECTRICAL

LIGHTINGExterior LightingLandscape Bollard Lights 6 Each 600.00$ 3,600.00$Pole Lighting 13 Each 3,500.00$ 45,500.00$

3,600.00$

237,131.82$ CONTRACTOR FEE 25% 59,282.96$

DESIGNER FEE 10% 23,713.18$ CONTINGENCY 30% 71,139.55$ TOTAL COST 391,267.51$

HOLLYGROVE GREENLINE

PREFERRED ALTERNATIVE

MATERIALS & CONSTRUCTION

cont’d next page

Page 33: Hollygrove Greenline

ITEM DESCRIPTION QTY. UNIT ITEM COST TOTAL COST DIVISION COST

DIVISION 01 EXISTING CONDITIONSSURVEYSSite Survey 1 Each 5,000.00$ 5,000.00$

DEMOLITIONTree Protective Fencing LF 16.00$ $Concrete Removal 42 Sq. Yd. 14.00$ 588.00$Fence Removal LF 4.00$ $

5,588.00$ DIVISION 02 EARTHWORK

SITE CLEARINGTree and Shrub Removal

Grubbing 3,100 Sq. Yd. 1.00$ 3,100.00$Tree and Stump Removal 0 Each 600.00$ $

EARTH MOVINGRough Grading 3,100 Sq. Yd. 2.00$ 6,200.00$Fine Grading 427 Sq. Yd. 5.00$ 2,136.18$

11,436.18$ DIVISION 03 EXTERIOR IMPROVEMENTS

BASES, BALLASTS, and PAVINGRigid PavingConcrete Drive (7" Thick) 2,376 Sq. Ft. 7.50$ 17,820.00$Concrete Edge 12" 340 Sq. Ft. 5.00$ 1,700.00$Concrete Wall 12" 493 LF 125.00$ 61,625.00$Concrete Wall 6" (Planters) 220 LF 50.00$ 11,000.00$Concrete Paving (Stairs & Landing) 1,256 Sq. Ft. 7.50$ 9,420.00$Concrete Paving (Sidewalk, 4" Thick) 1,048 Sq. Ft. 5.00$ 5,240.00$Scoring Lines 1,404 LF 0.50$ 702.00$Gabions 437 LF 90.00$ 39,330.00$Steel Edgeing 288 LF 10.00$ 2,880.00$Corten Steel 99 Sq. Ft. 28.00$ 2,772.00$Crushed Brown Aggragate 4" Deep 6,860 Sq.Ft. 1.50$ 10,290.00$

SITE IMPROVEMENTSThermoplastic Paint 1,247 Sq. ft. 2.00$ 2494SignageEntry Signage 3 Each 3,000.00$ 9,000.00$

Fences and GatesOrnamental Fencing 0 LF 125.00$ $Chain Link Fencing 0 LF 25.00$ $

STORMWATER MANAGEMENTStormwater Management

Excavating (Hauling offsite included) 206 Cu. Yd. 18.00$ 3,708.34$Bioswale Soil 206 Cu. Yd. 40.00$ 8,240.00$Bioswale Plantings (1 Gal, 24" OC) 3,846 Sq. Ft. 3.00$ 11,536.50$

PLANTINGPlanting PreparationPlanting Soil 11 Cu. Yd. 45.00$ 495.00$Top Dress Mulch 422 Sq. Yd. 5.00$ 2,110.00$

Turf and GrassesHydro seeding 0.2 Acres 4,000.00$ 844.81$

PlantsLarge Street Trees 0 Each 500.00$ $Medium Shade Trees 51 Each 300.00$ 15,300.00$Small Boarder Trees 0 Each 200.00$ $

216,507.65$ DIVISION 05 BUILDING

Square Feet Sq. Ft. 250.00$ $-$

DIVISION 06 FURNISHINGSSITE FURNISHINGSBicycle Racks 0 Each 500.00$ $Trash and Litter Receptors 0 Each 400.00$ $Picnic Pavilions 0 Each 20,000.00$ $Picnic Tables 0 Each 3,000.00$ $Benches 0 Each 1,500.00$ $

-$ DIVISION 07 ELECTRICAL

LIGHTINGExterior LightingLandscape Bollard Lights 6 Each 600.00$ 3,600.00$Pole Lighting 13 Each 3,500.00$ 45,500.00$

3,600.00$

237,131.82$ CONTRACTOR FEE 25% 59,282.96$

DESIGNER FEE 10% 23,713.18$ CONTINGENCY 30% 71,139.55$ TOTAL COST 391,267.51$

HOLLYGROVE GREENLINE

PREFERRED ALTERNATIVE

MATERIALS & CONSTRUCTIONcont’d next page

Page 34: Hollygrove Greenline
Page 35: Hollygrove Greenline

The CHCDC strives to provide educational programming as part of the mission of developing the GreenLine site. This process has already begun in several ways, including the installation of demonstration rain gardens at five locations throughout the neighborhood. The CHCDC has engaged with the GreenLine owner, the Sewerage & Water Board, and hopes to maintain a close working relationship in order to meet the goals of providing educational programming regarding water management, urban agriculture, and other related topics.

The CDC is also working with Engineers Without Borders, who have provided surveying and water management strategies to inform the ongoing design process. Their focus on real, on-the-ground conditions and realistic water management strategies will allow the GreenLine site to serve as an example of sustainable de-velopment, further enhancing the CDC’s educational goals. 4

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Page 37: Hollygrove Greenline

Source: http://www.guttertogulf.com

1

6

?

A1

B2

C5

B4

8

8

A6

1

6

?Canal St. Pump Stationpumps water from and unknownsub-Basing in Jeffer-son Parish on the 17th street canal

Surface Condition

Drainage System Taxonomy

Single Box Culvert

Box Culvert under Median

Box Culvert under Street Pipe under Street

Pipe under Median

Double Box Culvert

Triple Box Culvert

Box Culvert Transition

Pipe to Box Culvert

Box Culvert to Open Canal

Pump Station at Flood Wall

Pump Station at Open Canal

1

2

3

4

5

6

B D

A C

7

8

+3’-5’ box culvert+5’-10’ box culvert+10’-15’ box culvert

+3’-5’ pipe+5’-10’ pipe

+25’-30’ open canal30+’ open canal

+15’-20’ box culvert+20’-25’ box culvert+25’-30’ box culvert

pump station

NOLA planning district

Sub-Basin

Legend

1

N0 15,000 ft

2 miles

Where the Water Goes_17th Street Canal

sources:(2007) System Wide Drainage Network; Sewerage & Water Board of New Orleans Sewer System Evaluation and Rehabilitation Program

GIS Base Data; Sewer & Water Board Maps; Courtesy Waggonner & Ball Architects

Linear Force Pump; from 2009 Gutter to Gulf Machinery Pump Technology Study(Machinery Pump Technology 1)

Single, Double, & Triple Culvert Details; from San Diego Regional Drainage Engineering Standard Drawings(for shape reference only)

The 17th Street Canal outflow serves drainage sub-basins 1 & 6.

drainage sub-basin 1= 5432 acres drainage sub-basin 6= 3146 acres total = 8628 acres of surface area

= 375,835,000 sq ft

At Capacity 17th Street Canal drains into Lake Pontchartrain at a rate of:

375.8 million sq ft x 1/2 in./hr =

15,600,000 cu. ft./hr

12~14 ft

10~12 ft

8~10 ft

6 ~ 8 ft

4 ~ 6 ft

2 ~ 4 ft

0 ~ 2 ft

-2 ~ 0 ft(Sea Level Line)

-4 ~ -2 ft

-8 ~ -6 ft

-6 ~ -4 ft

Page 38: Hollygrove Greenline
Page 39: Hollygrove Greenline

A rain garden is a planted depression designed to infiltrate stormwater runoff, but not hold it.

A rain garden is commonly known as a bioretention facility. Stormwater pollutant mitigation is accomplished through phytoremediation processes as runoff passes through the plant and soil community. Rain gardens combine layers of organic sandy soil for infiltration, and mulch to promote microbial activity. Native plants are recommended based upon their intrinsic synergies with local climate, soil, and moisture conditions without the use of fertilizers and chemicals. Rain gardens are best applied on a relatively small scale. They work well along driveways and in low

lying areas of a property.

Rain gardens should be located at least 10 feet away from buildings to prevent water seepage into foundations or underneath houses, causing mold and mildew problems. Also, location away from large trees allows exposure to sunlight so that

rain gardens may dry out between storm events.

optimal level of servicefiltration/infiltration/treatment

location in LID network

downstream of filtration facilities, but upstream of primary treatment

facilities

scale500 sq ft, to allow for adequate

irrigation between small storm events

management regimeoccasional removal of trash and

pruning of vegetation

References: Low Impact Development Design Strategies–An Integrated Design ApproachLow Impact Development Manual for MichiganLow Impact Development Technical Guidance Manual for Puget SoundUnited States Department of Housing and Urban DevelopmentMinnesota Urban Small Sites BMP Manual

raingarden

17

Rain Garden

vegetation; succulents, herbs, grasses

4” to 8” deep berm10’ min. distance from foundation

50-500 sq ft area

old lawn surface

amended soil mixfilter fabric3/4” gravel baseperforated underdrain

overflow system for poorly-drained soils or large storm events

178 179

Source: University of Arkansas CDC. Low Impact Development: a design manual for urban areas. Fayetteville: University of Arkansas Press, 2010.

Rain Garden

Page 40: Hollygrove Greenline

1

2a

2b

3

plantedraingarden

Sq. Ft. ~14,200Watershed 1Watershed 2

Watershed 3

Sq. Ft. ~26,500

Sq. Ft. ~13,100

a a

a

a

a

a

raingarden

roadway

catchbasin

outfall pipe

plantings

curb cutmetal grate

gravel or grass channel

infiltration & filtration2%

2%

Create an 18” wide channel by removing curb, grass, & sidewalk connecting the street to the raingarden. Slope the newly created channel 2% for positive drainage into the raingarden. Slope the raingarden outfall pipe 2% into the catch basin. raingarden 1 -10”

raingarden 2 -12”raingarden 3 -10”

a

Page 41: Hollygrove Greenline

1

2a

2b

3

plantedraingarden

Sq. Ft. ~14,200Watershed 1Watershed 2

Watershed 3

Sq. Ft. ~26,500

Sq. Ft. ~13,100

a a

a

a

a

a

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