Loch Alsh Reservoir

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StatePennsylvania
CountyMontgomery
River/StreamTR WISSAHICKON CREEK
Coordinates40.15583, -75.20472

Physical Characteristics

Dam TypeEarth
NID Height16 ft
Dam Height16 ft
Dam Length513 ft
Year Completed1915 (111 years old)

Storage & Hydraulics

NID Storage41 acre-ft
Max Storage41 acre-ft
Normal Storage36 acre-ft
Surface Area6 acres
Drainage Area0 sq mi

Ownership & Safety

PurposeRecreation
OwnerBOROUGH OF AMBLER
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection11/18/2020
Emergency Action PlanYes

Identifiers

NID IDPA00935
Federal IDPA00935
More InfoState Dam Safety Program

Nearby Dams

Rapp Run Flood Retarding 1.4 mi High Pine Run Flood Retarding 2.3 mi High Horsham Towne Upper Pond 2.9 mi Significant Horsham Towne Lower Pond 3.1 mi Significant Penallen 3.6 mi Significant Susquehanna Woods Lower 3.6 mi High Mill Creek Detention Basin 4.5 mi High Warrington (pa-611) 5.6 mi High Sunny Brook Estates # 1 5.7 mi Significant Metroplex 6.3 mi Low