Grassy Creek Watershed Dam G- 94

Grassy Creek Watershed Dam G- 94 is an earth dam located in Marion County, Missouri, built in 1996. It carries a Low hazard potential classification.

About Grassy Creek Watershed Dam G- 94

The primary purpose of Grassy Creek Watershed Dam G- 94 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Grassy Ck Subdistrict (local government). It impounds the Grassy Creek near Durham.

The dam stands 34 feet tall and stretches 490 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 124 acre-feet, and collects water from a drainage area of 320 square miles. Completed in 1996, the structure is 30 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. The most recent inspection on record was 09/11/1999. That was over 26 years ago.

At 34 feet, this dam is taller than 80% of dams nationwide.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMissouri
CountyMarion
Nearest CityDurham
River/StreamGrassy Creek
Coordinates39.93161, -91.66466

Physical Characteristics

Dam TypeEarth
NID Height34 ft
Dam Height27 ft
Dam Length490 ft
Year Completed1996 (30 years old)

Storage & Hydraulics

NID Storage124 acre-ft
Max Storage124 acre-ft
Normal Storage32 acre-ft
Surface Area9 acres
Drainage Area320 sq mi
Max Discharge310 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerGRASSY CK SUBDISTRICT
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection09/11/1999
Emergency Action PlanNot Required

Identifiers

NID IDMO50872
Federal IDMO50872
More InfoState Dam Safety Program

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