greenlinebrochure2013 8 5x11

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The Central Corridor Light Rail Project was an opportunity to demonstrate multiple green infrastructure practices in a highly urbanized, linear area between Saint Paul and Minneapolis. These practices improve the quality of storm- water runoff, aesthetics and sustainability of the Corridor. Project partners include Metropolitan Council, Capitol Region Watershed District, City of Saint Paul and Ramsey County. Known as the Green Line, trains will be running in spring 2014. Green infrastructure along the Green Line treats stormwater and adds beauty to University Avenue in Saint Paul. Tree Trench along University Avenue 1410 Energy Park Drive, Suite 4 Saint Paul, MN 55108 651-644-8888 www.capitolregionwd.org The greening of the Green Line

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Page 1: Greenlinebrochure2013 8 5x11

The Central Corridor Light Rail Project was an opportunity to demonstrate multiple green infrastructure practices in a highly urbanized, linear area between Saint Paul and Minneapolis. These practices improve the quality of storm-water runoff, aesthetics and sustainability of the Corridor. Project partners include Metropolitan Council, Capitol Region Watershed District, City of Saint Paul and Ramsey County. Known as the Green Line, trains will be running in spring 2014.

The greening of the Green Line

Green infrastructure along the Green Line treats stormwater and adds beauty to University Avenue in Saint Paul.

Tree Trench along University Avenue

1410 Energy Park Drive, Suite 4Saint Paul, MN 55108

651-644-8888www.capitolregionwd.org

The greening of the Green Line

Page 2: Greenlinebrochure2013 8 5x11

rain garden tree trenchinfiltration trench light rail station stopsstormwater planter

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Raym

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Fairv

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Snel

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Dale

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Capi

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Robert

Union Depot

Central

10th

Pillsbury

Aldine

Albert

Synd

icate

Griggs

Oxford

St. Alba

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ion

The greening of the Green Line

What’s Green Infrastructure?A stormwater management approach that uses natural landscape features and hydrologic processes to treat stormwater by infiltrating or reusing runoff. Green Infrastructure can also help meet other environmental goals such as carbon sequestration, reductions in urban heat island effect, improved air quality, improved wildlife habitat and increased opportunities for outdoor recreation.

rain garden

Polluted rainwater

Curb opening

Roots channeling

water

Hardy plants

Sand filter

Original soil

Modified soil

Polluted rainwater stormwater planter

Polluted rainwater

Curb opening

Roots channeling

water

Hardy plants

Sand filter

Original soil

Modified soil

Polluted rainwater

Page 3: Greenlinebrochure2013 8 5x11

rain garden tree trenchinfiltration trench light rail station stopsstormwater planter

Wes

tgat

e

Raym

ond

Fairv

iew

Snel

ling

Ham

line

Lexi

ngto

n

Vict

oria

Dale

Wes

tern

Capi

tol/R

ice

Robert

Union Depot

Central

10th

Pillsbury

Aldine

Albert

Synd

icate

Griggs

Oxford

St. Alba

nsAru

ndel

Mar

ion

Green infrastructure practices were installed along University Avenue and adjacent streets along portions of the light rail running through Saint Paul. The drainage area is 111 acres of highly developed land with large tracts of industrial, commercial and residential areas. The high amount of impervious surfaces direct large amounts of stormwater runoff and pollutants to the storm drain system and ultimately the Mississippi River. Four types of practices are used to improve water quality and control runoff volume along the light rail project area.

• Rain gardens were constructed in the boulevard on four side streets by CRWD.

• Five side streets have stormwater planters in the boulevard constructed by CRWD.

• Two side streets have infiltration trenches constructed by the City of Saint Paul.

• Over five miles of tree trench with over 1,000 trees was constructed by Metropolitan Council on both sides of University Avenue in Saint Paul.

It is estimated that the project reduces stormwater runoff by more than 50%, and removes 80 pounds of phosphorus and 40,000 pounds of sediment annually.

Graphics courtesy of Barr Engineering Co.

infiltration trench

Polluted rainwater

Perforatedpipes

Water soaksinto ground Rock trench

Excess water to storm sewer

tree trench

Polluted rainwater

Storm drain

Roots channeling

water

Sand filter

Original soil

Modified soil

Polluted rainwater

Permeable pavers

Green infrastructure along the Green Line treats stormwater and adds beauty to University Avenue in Saint Paul.

Page 4: Greenlinebrochure2013 8 5x11

The greening of the Green Line

Project partnersCapitol Region Watershed District

Metropolitan Council

Ramsey County

City of Saint Paul

Project costApproximately $5,000,000

Grant funding

MN Clean Water Legacy Fund

Resources

CRWD: capitolregionwd.org

Met Council: metrocouncil.org

City of Saint Paul: stpaul.gov

Ramsey County: co.ramsey.mn.us

MN Clean Water Legacy Fund: bwsr.state.mn.us/cleanwaterfund

Syndicate Street rain garden

Oxford Street stormwater planters

1410 Energy Park Drive, Suite 4Saint Paul, MN 55108

651-644-8888www.capitolregionwd.org

To draw public attention

to the practices, the work

of metal artist Lisa Elias

is featured.

Elias created artistic railings

that can be seen around the

stormwater planters and

rain gardens.