Rocky Branch Creek Watershed Site H-5

Rocky Branch Creek Watershed Site H-5 is an earth dam located in Jefferson County, Iowa, built in 1958. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height26 ft
Built195868 years ago

Dam profile

NID height · 26 ft
26 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

26 ft tall and 489 ft long, taller than 55% 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 Rocky Branch Creek Watershed Site H-5

The primary purpose of Rocky Branch Creek Watershed Site H-5 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 Jefferson County Swcd (local government). It impounds the Tr-rocky Branch Creek near Rome.

The dam stands 26 feet tall and stretches 489 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 93 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1958, 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.

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Location

StateIowa
CountyJefferson
Nearest CityRome
River/StreamTr-rocky Branch Creek
Coordinates41.06540, -91.84970

Physical Characteristics

Dam TypeEarth
NID Height26 ft
Dam Height26 ft
Dam Length489 ft
Year Completed1958 (68 years old)

Storage & Hydraulics

NID Storage93 acre-ft
Max Storage93 acre-ft
Normal Storage29 acre-ft
Surface Area5 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerJefferson County Swcd
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDIA00560
Federal IDIA00560
More InfoState Dam Safety Program