Newquist Grade Stabilization Structure

Newquist Grade Stabilization Structure is an earth dam located in Wapello County, Iowa, built in 2011. It carries a Low hazard potential classification.

About Newquist Grade Stabilization Structure

The primary purpose of Newquist Grade Stabilization Structure is grade stabilization. Grade stabilization dams prevent erosion by reducing the slope and velocity of water flowing through a channel. They're commonly used to stop gullies from deepening and to protect downstream land and infrastructure. The dam is owned by Ron Newquist & William Durflinger (private). It impounds the Trib To Buckeye Creek near Fairfield.

The dam stands 27 feet tall and stretches 569 feet across, creates a reservoir covering 21 acres, has a maximum storage capacity of 612 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 2011, the structure is relatively new.

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
CountyWapello
Nearest CityFairfield
River/StreamTrib To Buckeye Creek
Coordinates40.99990, -92.27510

Physical Characteristics

Dam TypeEarth
NID Height27 ft
Dam Height27 ft
Dam Length569 ft
Year Completed2011 (15 years old)

Storage & Hydraulics

NID Storage612 acre-ft
Max Storage612 acre-ft
Normal Storage79 acre-ft
Surface Area21 acres
Drainage Area2 sq mi

Ownership & Safety

PurposeGrade Stabilization
OwnerRon Newquist & William Durflinger
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDIA04091
Federal IDIA04091
More InfoState Dam Safety Program

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