Cottonwood Creek Upper

Significant HazardFair ConditionEmergency Action Plan: Not Required

Location

StateIdaho
CountyAda
Nearest CityBOISE
River/StreamCOTTONWOOD CREEK BOISE RIVER
Coordinates43.61810, -116.18560

Physical Characteristics

NID Height18 ft
Dam Height18 ft
Dam Length840 ft
Year Completed1961 (65 years old)

Storage & Hydraulics

NID Storage17 acre-ft
Normal Storage17 acre-ft
Surface Area2 acres
Drainage Area16 sq mi
Max Discharge3,540 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection09/11/2018
Emergency Action PlanNot Required

Identifiers

NID IDID00565
Federal IDID00565
More InfoState Dam Safety Program

Nearby Dams

Cottonwood Creek Middle 0.1 mi Significant Cottonwood Creek Lower 0.2 mi Significant Crane Gulch East Dam 2.9 mi Significant Crane Gulch Main Fork 4.0 mi Significant Stewart Gulch Main Fork 4.1 mi Significant Stewart Gulch North Fork 4.5 mi Significant Barber 5.1 mi Significant Boise River Diversion Dam 7.2 mi High Hidden Springs Cell 3a 7.6 mi Significant Lucky Peak Dam 9.1 mi High