Kolls Dam
Kolls Dam is an earth dam located in Jasper County, Iowa, built in 1959. It carries a Low hazard potential classification.
About Kolls Dam
The primary purpose of Kolls Dam 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 Ew Kolls (private). It impounds the Tr-alloway Creek near Kellogg.
The dam stands 29 feet tall and stretches 419 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 72 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1959, 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 11/30/1960. That was over 65 years ago.
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Location
| State | Iowa |
| County | Jasper |
| Nearest City | Kellogg |
| River/Stream | Tr-alloway Creek |
| Coordinates | 41.84500, -92.94830 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 419 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 72 acre-ft |
| Max Storage | 72 acre-ft |
| Normal Storage | 45 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | EW Kolls |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 11/30/1960 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00547 |
| Federal ID | IA00547 |
| More Info | State Dam Safety Program |