Simmering Dam

Simmering Dam is an earth dam located in Washington County, Iowa, built in 1976. It carries a Low hazard potential classification.

About Simmering Dam

The primary purpose of Simmering Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Donald C Simmering Ii (private). It impounds the Tr-south Fork Long Creek near Mississippi River.

The dam stands 25 feet tall and stretches 330 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 41 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1976, the structure is 50 years old.

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.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyWashington
Nearest CityMississippi River
River/StreamTr-south Fork Long Creek
Coordinates41.27850, -91.59180

Physical Characteristics

Dam TypeEarth
NID Height25 ft
Dam Height25 ft
Dam Length330 ft
Year Completed1976 (50 years old)

Storage & Hydraulics

NID Storage41 acre-ft
Max Storage41 acre-ft
Normal Storage27 acre-ft
Surface Area3 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerDonald C Simmering II
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDIA01631
Federal IDIA01631
More InfoState Dam Safety Program

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