Keeven Lake Dam

Significant HazardNot Available ConditionEmergency Action Plan: Yes

Location

StateIllinois
CountyMonroe
Nearest CityCOLUMBIA
River/StreamPRAIRIE DU LONG CREEK
Coordinates38.40688, -90.15293

Physical Characteristics

Dam TypeEarth
NID Height25 ft
Dam Height25 ft
Dam Length300 ft
Year Completed1998 (28 years old)

Storage & Hydraulics

NID Storage140 acre-ft
Max Storage140 acre-ft
Normal Storage71 acre-ft
Surface Area9 acres
Drainage Area0 sq mi
Max Discharge567 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerTHOMAS KEEVAN
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot Available
Last Inspection07/15/2025
Emergency Action PlanYes

Identifiers

NID IDIL50415
Federal IDIL50415
More InfoState Dam Safety Program

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