Ish #3 (east Dam)

Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateColorado
CountyBoulder
Nearest CityMILLIKEN
River/StreamLITTLE THOMPSON RIVER-OS
Coordinates40.25360, -105.08168

Physical Characteristics

Dam TypeEarth
NID Height12 ft
Dam Height12 ft
Dam Length2,760 ft

Storage & Hydraulics

NID Storage9,065 acre-ft
Max Storage9,065 acre-ft
Normal Storage7,128 acre-ft
Surface Area314 acres
Drainage Area1 sq mi
Max Discharge3,066 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerTHE ISH RESERVOIR COMPANY
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection07/10/2020
Emergency Action PlanYes

Identifiers

NID IDCO02831
Federal IDCO02831
More InfoState Dam Safety Program

Nearby Dams

Divide 1.0 mi Low Ish #3 (main Dam) 1.0 mi High Walker 1.9 mi Low Branith #1 2.4 mi Low Baxter 2.7 mi Low Rockwell 2.8 mi Low Highland #2 (north) 3.0 mi Significant Pleasant Valley 3.0 mi High Crystal 3.0 mi Low Mead 3.2 mi Low