Prairie Grass Boulevard Dam

Significant HazardNot Available ConditionEmergency Action Plan: Yes

Location

StateIllinois
CountyWill
Nearest CityWILMINGTON
River/StreamTRIB FORKED CREEK
Coordinates41.39246, -87.85555

Physical Characteristics

Dam TypeEarth
NID Height6 ft
Dam Height6 ft
Dam Length750 ft

Storage & Hydraulics

NID Storage27 acre-ft
Max Storage27 acre-ft
Drainage Area1 sq mi
Max Discharge938 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerWHISPERING PRAIRIE INC.
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot Available
Last Inspection05/07/2025
Emergency Action PlanYes

Identifiers

NID IDIL55095
Federal IDIL55095
More InfoState Dam Safety Program

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