E.br So Fk Blackwater A-5

E.br So Fk Blackwater A-5 is an earth dam located in Johnson County, Missouri, built in 1956. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height31 ft
Built195670 years ago

Dam profile

NID height · 31 ft
31 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

31 ft tall and 770 ft long, taller than 72% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.

About E.br So Fk Blackwater A-5

The primary purpose of E.br So Fk Blackwater A-5 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 Johnson Co Scd (local government). It impounds the E.br.s.fk. Blackwater near Sweet Springs.

The dam stands 31 feet tall and stretches 770 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 128 acre-feet, and collects water from a drainage area of 25 square miles. Completed in 1956, the structure is well into its service life at over 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.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

Location

StateMissouri
CountyJohnson
Nearest CitySweet Springs
River/StreamE.br.s.fk. Blackwater
Coordinates38.89821, -94.06540

Physical Characteristics

Dam TypeEarth
NID Height31 ft
Dam Height29 ft
Dam Length770 ft
Year Completed1956 (70 years old)

Storage & Hydraulics

NID Storage128 acre-ft
Max Storage128 acre-ft
Normal Storage28 acre-ft
Surface Area2 acres
Drainage Area25 sq mi
Max Discharge1,320 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerJohnson Co Scd
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDMO20610
Federal IDMO20610
More InfoState Dam Safety Program