Big Creek Diversion Dam

High HazardNot Available ConditionEmergency Action Plan: Yes

Location

StateIowa
CountyPolk
Nearest CityPOLK CITY
River/StreamBIG CREEK
Coordinates41.79307, -93.73018

Physical Characteristics

Dam TypeGravity
NID Height80 ft
Dam Height80 ft
Dam Length1,750 ft
Year Completed1970 (56 years old)

Storage & Hydraulics

NID Storage27,500 acre-ft
Max Storage27,500 acre-ft
Normal Storage7,600 acre-ft
Surface Area885 acres
Drainage Area76 sq mi
Max Discharge355 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerUSACE - Rock Island District
Owner TypeFederal
Hazard ClassificationHigh
Condition AssessmentNot Available
Last Inspection12/06/2022
Emergency Action PlanYes

Identifiers

NID IDIA00014
Federal IDIA00014
More InfoState Dam Safety Program

Nearby Dams

Big Creek Terminal Dam 1.0 mi Low Young Dam 1.1 mi Low Big Creek Barrier Dam 3.1 mi High Jester Park Estates Dam 3.6 mi Significant Young Dam 4.2 mi Low Saylorville Wildlife Area Dam 5.9 mi Low Shryock Dam 6.1 mi Significant Ankeny Golf & Country Club Dam 6.4 mi Low Larson Dam 6.5 mi Low Saylorville Dam 6.7 mi High