Sabin Point Park, East Providence Sabin Point stormwater - - PowerPoint PPT Presentation

Sabin Point Park, East Providence

Daylight stormwater and infiltrate in Middle St. ROW Goal to remove pipes at beach Infiltrate stormwater from Shore Rd and parking lot in park

Sabin Point stormwater infiltration and buffer conceptual plan by Save The Bay (2014)

Infiltrate stormwater in Locust St. ROW Area in park to create wetland End of road retrofit at Knowlton Ave Install buffer of native grasses to reduce use of park by geese

Sabin Point Watershed

Impervious surfaces: 59% roads/41% roofs or driveways

Sabin Point stormwater infiltration plan

Water quality volume: 29,342 cubic feet Total Water quality volume of watershed 67,517 cubic feet

• 1. Shore Rd stormwater filtration

area prior to installation

1 3

• 3. Pipe from Shore Road storm

drain

2

2: Former storm drain that discharged directly to beach

Shore Road/Sabin Point Park sand filter

Direction of runoff

Sabin Point grass sand filter

• installed by East Providence DPW fall of 2017, online summer of 2018

Stormwater filtration area inlet structure and forebay Stormwater overflow flows through existing pipe

Inspection and Maintenance

1

• 2. Locust right of way; install grass sand filter

and direct surface runoff to right of way

2

• 1. Hydrodynamic separators installed with sumps

and underground infiltration trenches in 2018

Subsurface infiltration in city ROW

~ area of proposed gravel wetland ~ area of proposed grass conveyance swale for

• verflow

Proposed sand filter area in knotweed; proposed gravel wetland area in foreground

Proposed stormwater filtration areas in park