Klahanie Stormwater Detention Dam No 1

Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateWashington
CountyKing
Nearest CityIssaquah
River/StreamTr-Laughing Jacobs Lake Outlet
Coordinates47.56718, -122.02463

Physical Characteristics

Dam TypeEarth
NID Height9 ft
Dam Length400 ft
Year Completed1984 (42 years old)

Storage & Hydraulics

NID Storage16 acre-ft
Max Storage16 acre-ft
Normal Storage8 acre-ft
Surface Area7 acres
Drainage Area0 sq mi
Max Discharge50 cfs

Ownership & Safety

PurposeFlood Risk Reduction
OwnerSammamish City Public Works
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection08/26/2020
Emergency Action PlanYes

Identifiers

NID IDWA01484
Federal IDWA01484
More InfoState Dam Safety Program

Nearby Dams

Conner Jarvis East Pond 0.5 mi Significant Yellow Lake Outlet Dike 0.7 mi High Queens Bog Dam 0.9 mi Low Klahanie Stormwater Detention Dam No 13 1.1 mi High Issaquah Highlands Npe Pond 1.5 mi High South Ridge Stormwater Detention Dam 1.6 mi High Issaquah Highlands Np2 Pond Dam 1.7 mi High Issaquah Highlands Falls Pond Dam 1.8 mi High Issaquah Highlands Reid Pond Dam 2.0 mi High Issaquah Highlands South Pond Dam 2.1 mi High