High Hill Farms Dam

High HazardNot Available ConditionEmergency Action Plan: Yes

Location

StateIllinois
CountyMcHenry
Nearest CityALGONQUIN
River/StreamRAT CREEK
Coordinates42.16531, -88.30656

Physical Characteristics

Dam TypeEarth
NID Height23 ft
Dam Height23 ft
Dam Length575 ft
Year Completed1977 (49 years old)

Storage & Hydraulics

NID Storage76 acre-ft
Max Storage76 acre-ft
Normal Storage2 acre-ft
Max Discharge600 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerVILLAGE OF ALGONQUIN
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentNot Available
Last Inspection06/12/2025
Emergency Action PlanYes

Identifiers

NID IDIL50356
Federal IDIL50356
More InfoState Dam Safety Program

Nearby Dams

Algonquin Dam 0.8 mi Significant Lake In The Hills 3 Dam 1.0 mi Low Lake In The Hills 2 Dam 1.0 mi Significant Lake In The Hills Dam 1 1.2 mi High Sleepy Hollow Road Dam 3.3 mi Low Woodscreek Detention Dam 3.5 mi Low Carpentersville Dam 3.6 mi Low Tara Lake Dam 4.4 mi Significant Pine Lake Dam 4.7 mi High South Lake Dam 5.1 mi Low