Swan Lake Dam

Swan Lake Dam is an earth dam located in Carroll County, Iowa, built in 1935. It carries a Low hazard potential classification.

About Swan Lake Dam

The primary purpose of Swan Lake Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Iowa Department Of Natural Resources (state). It impounds the Trib To Middle Raccoon near Coon Rapids.

The dam stands 10 feet tall and stretches 900 feet across, creates a reservoir covering 130 acres, has a maximum storage capacity of 600 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1935, the structure is well-established, with more than 75 years of service.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 12/31/1993. That was over 32 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyCarroll
Nearest CityCoon Rapids
River/StreamTrib To Middle Raccoon
Coordinates42.03360, -94.84110

Physical Characteristics

Dam TypeEarth
NID Height10 ft
Dam Height10 ft
Dam Length900 ft
Year Completed1935 (91 years old)

Storage & Hydraulics

NID Storage600 acre-ft
Max Storage600 acre-ft
Normal Storage440 acre-ft
Surface Area130 acres
Drainage Area1 sq mi

Ownership & Safety

PurposeFish and Wildlife Pond
OwnerIowa Department of Natural Resources
Owner TypeState
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection12/31/1993
Emergency Action PlanNot Required

Identifiers

NID IDIA04222
Federal IDIA04222
More InfoState Dam Safety Program

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