Lidtke Mill Dam
Lidtke Mill Dam is a dam located in Howard County, Iowa, built in 1860. It carries a Low hazard potential classification.
About Lidtke Mill Dam
Lidtke Mill Dam is a dam in Howard, Iowa. The dam is owned by Howard County Conservation Board (local government). It impounds the Upper Iowa River.
The dam stands 12 feet tall and stretches 120 feet across, has a maximum storage capacity of 198 acre-feet, and collects water from a drainage area of 182 square miles. Completed in 1860, the structure is one of the older dams in the region, with over a century and a half of service.
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.
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Location
| State | Iowa |
| County | Howard |
| River/Stream | Upper Iowa River |
| Coordinates | 43.46470, -92.27850 |
Physical Characteristics
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 120 ft |
| Year Completed | 1860 (166 years old) |
Storage & Hydraulics
| NID Storage | 198 acre-ft |
| Max Storage | 198 acre-ft |
| Drainage Area | 182 sq mi |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | Howard County Conservation Board |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04031 |
| Federal ID | IA04031 |
| More Info | State Dam Safety Program |