Pattison Dam is an earth dam located in Clayton County, Iowa, built in 2008. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 68 ft68 ft tall and 558 ft long, taller than 96% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Pattison Dam
Pattison Dam is a dam in Clayton, Iowa. The dam is owned by Pattison Sand Company (private). It impounds the Tr- Mississippi River near Guttenberg.
The dam stands 68 feet tall and stretches 558 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 208 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2008, the structure is relatively new.
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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 04/02/2009. That was over 17 years ago.
At 68 feet, this dam is taller than 96% of all dams in the United States.
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Location
| State | Iowa |
| County | Clayton |
| Nearest City | Guttenberg |
| River/Stream | Tr- Mississippi River |
| Coordinates | 42.88590, -91.12390 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 68 ft |
| Dam Height | 68 ft |
| Dam Length | 558 ft |
| Year Completed | 2008 (18 years old) |
Storage & Hydraulics
| NID Storage | 208 acre-ft |
| Max Storage | 208 acre-ft |
| Normal Storage | 160 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Pattison Sand Company |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/02/2009 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA03902 |
| Federal ID | IA03902 |
| More Info | State Dam Safety Program |