Dane Ridge Watershed Site D-1-6

Dane Ridge Watershed Site D-1-6 is an earth dam located in Crawford County, Iowa, built in 1978. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height39 ft
Built197848 years ago

Dam profile

NID height · 39 ft
39 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

39 ft tall and 430 ft long, taller than 85% 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 Dane Ridge Watershed Site D-1-6

The primary purpose of Dane Ridge Watershed Site D-1-6 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 Crawford County Swcd (local government). It impounds the Tr-welsh Creek Gully D-1 near Dunlap.

The dam stands 39 feet tall and stretches 430 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 259 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1978, the structure is 48 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.

At 39 feet, this dam is taller than 85% of dams nationwide.

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

Location

StateIowa
CountyCrawford
Nearest CityDunlap
River/StreamTr-welsh Creek Gully D-1
Coordinates41.95690, -95.55320

Physical Characteristics

Dam TypeEarth
NID Height39 ft
Dam Height39 ft
Dam Length430 ft
Year Completed1978 (48 years old)

Storage & Hydraulics

NID Storage259 acre-ft
Max Storage259 acre-ft
Normal Storage133 acre-ft
Surface Area11 acres
Drainage Area2 sq mi
Spillway TypeUncontrolled

Ownership & Safety

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

Identifiers

NID IDIA01910
Federal IDIA01910
More InfoState Dam Safety Program