Montco 2040:
a shared vision
39
… complete and update watershed stormwater management plans
Traditional stormwater control regulations treat all properties within a watershed the same for release of stormwater; however,
from a flooding standpoint, it actually makes sense to have different rates of discharge from stormwater basins and other
stormwater control facilities. When a property is right next to a river, it might make sense to have the water get into the river
quickly before more upstream stormwater reaches that point, while properties in headwaters areas might have a slower rate
of discharge.
Because of this, the state requires counties to prepare stormwater management plans for watersheds, known as
As shown in the map below, Montgomery County has prepared many of its plans. For the future, the county proposes to create
one county-wide plan for all watersheds, including updates of watershed plans that have already been completed. This plan
will focus on problem areas of county-wide significance.
■■ More watersheds with a
current plan
■■ Creation of a county-wide
stormwater plan
Measuring success
¯
Lansdale
§¨
¦
476
§¨
¦
276
§¨
¦
76
§¨
¦
476
£
¤
422
£
¤
202
611
100
309
73
663
29
29
73
Completed Act 167 Watershed Plan
Act 167 Watershed Plan to be Completed
Darby/Cobbs
Creeks
Lower Merion
Drainage Area
Valley
Creek
Schuylkill
River
Manatawny
Creek
Swamp
Creek
Stony Creek/
Sawmill Run
Schuylkill
River
Perkiomen
Creek
Perkiomen
Creek
East
Branch
Perkiomen
Creek
Skippack
Creek
Wissahickon
Creek
Neshaminy Creek/
Little Neshaminy Creek
Tookany
Creek
Pennypack
Creek
Poquessing Creek
Schuylkill
River
Perkiomen Creek Headwaters
DESIGNATED ACT 167 WATERSHEDS
