CommunityGreenhouse &CommercialCenterUpgradedParkingLot&CommunityOpenSpace

All-weatherPathway Buffer EntryPlaza

BasketballCourt

About 50’ below its urban context, this sunken landscape is ignored by even people living next to it. To create more connections to surrounding communities and give people easy access to the Arches, I soften the southern edge of with cut and fill and created several ridges and valleys. The ridges will connect to the previous underutilized parking lots and form entries for communities. The valleys will function as bio-swales and treat runoff from those communities.

Grey & Green Infrastructure System

In this proposal, grey and green infrastructures work together to manage storm water. Underground, the old railway tunnels will be connected to the re-oriented storm drain system and become cisterns for runoff. Inside the cisterns, the gross firstflush will get a centralized treatment before getting into the irrigation system. Above ground, the landscape are terraced and planted with different species so as to absorb different pollutants from the water.

Concept Formation

Step 1: Locate underutilized parking lots

Step 2: Cut and fill to creat ridges and valleys

Step 3: Terrace the ground and plant according to soil humidity

Step 4: Lay out pathways and entries

Infrastructure Systems

Longitudinal Section of the Bergen Arches

Grey & Green Infrastructure Layout

After

Water Storage

After Intense Rainstorm

Planting Strategy

Shrub Buffer: Capture dust and other larger particles

Grass Mat: Infiltrate smaller particles

Deep Root Grove: Stablize pollutants

Rainfall Intensity in 100yr Rain Event= 3.0 inches/hour

Proposed Drainage Area= 870,000 ft sq

Peak Water Volume= 21,500,000 gal