New Harrisburg Reservoir Dam

Significant HazardNot Available ConditionEmergency Action Plan: Yes

Location

StateIllinois
CountySaline
Nearest CityGALATIA-OFFSTREAM
River/StreamTRIB MIDDLE FORK SALINE RIVER
Coordinates37.83642, -88.59037

Physical Characteristics

Dam TypeEarth
NID Height38 ft
Dam Height38 ft
Dam Length1,000 ft
Year Completed1955 (71 years old)

Storage & Hydraulics

NID Storage6,233 acre-ft
Max Storage6,233 acre-ft
Normal Storage2,050 acre-ft
Surface Area218 acres
Drainage Area6 sq mi
Max Discharge8,804 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeOther
OwnerCITY OF HARRISBURG
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentNot Available
Last Inspection05/09/2025
Emergency Action PlanYes

Identifiers

NID IDIL00017
Federal IDIL00017
More InfoState Dam Safety Program

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