Rocky Branch Creek Watershed Site D-2

Rocky Branch Creek Watershed Site D-2 is an earth dam located in Jefferson County, Iowa, built in 1964. It carries a Low hazard potential classification.

About Rocky Branch Creek Watershed Site D-2

The primary purpose of Rocky Branch Creek Watershed Site D-2 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 35 feet tall and stretches 490 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 102 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1964, 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. The most recent inspection on record was 03/14/1968. That was over 58 years ago.

At 35 feet, this dam is taller than 82% of dams nationwide.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateIowa
CountyJefferson
Nearest CityRome
River/StreamTr-rocky Branch Creek
Coordinates41.08250, -91.82440

Physical Characteristics

Dam TypeEarth
NID Height35 ft
Dam Height35 ft
Dam Length490 ft
Year Completed1964 (62 years old)

Storage & Hydraulics

NID Storage102 acre-ft
Max Storage102 acre-ft
Normal Storage57 acre-ft
Surface Area7 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 Rated
Last Inspection03/14/1968
Emergency Action PlanNot Required

Identifiers

NID IDIA00553
Federal IDIA00553
More InfoState Dam Safety Program

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