Marak Dam, situated in Johnson County, Iowa, is a privately owned earth dam constructed in 1970 by the USDA NRCS.
Wind
Humidity
With a height of 30 feet and a length of 382 feet, the dam serves multiple purposes including fire protection, stock, small fish pond, and recreation. The dam has a storage capacity of 110 acre-feet, with a normal storage of 62 acre-feet, covering a surface area of 8.3 acres and draining an area of 0.42 square miles.
Located in the Coralville Reservoir area, Marak Dam is regulated by the Iowa Department of Natural Resources and is rated as having a low hazard potential. Despite not being rated for its condition assessment, the dam is regularly inspected, with state permitting, inspection, and enforcement in place to ensure its safety and functionality. The risk assessment for Marak Dam is moderate, with risk management measures in place to mitigate any potential issues. Overall, Marak Dam serves as a vital resource for water storage and management in the region, supporting various recreational activities while also providing essential services such as fire protection and stock maintenance.
Year Completed |
1970 |
Dam Length |
382 |
Dam Height |
30 |
River Or Stream |
TR-MC ALLISTER CREEK |
Primary Dam Type |
Earth |
Surface Area |
8.3 |
Drainage Area |
0.42 |
Nid Storage |
110 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
Clear Creek Near Oxford
|
11cfs |
Cedar River At Cedar Rapids
|
1030cfs |
Iowa River Below Coralville Dam Nr Coralville
|
1450cfs |
Clear Creek Near Coralville
|
19cfs |
Rapid Creek Near Iowa City
|
2cfs |
Iowa River At Iowa City
|
1530cfs |
| Location | Reservations | Toilets |
|---|---|---|
Lake Macbride State Park Campground
|
||
Kent Park Family Campground
|
||
F. W. Kent County Park
|
||
Palisades Kepler State Park
|
||
Morgan Creek County Park
|