Silver Lake Dam is an earth dam located in Delaware County, Iowa, built in 1948. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 200 ft long, taller than 50% 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 Silver Lake Dam
The primary purpose of Silver Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Delaware County Conservation Board (local government). It impounds the Tr-maquoketa River near Delhi.
The dam stands 25 feet tall and stretches 200 feet across, creates a reservoir covering 39 acres, has a maximum storage capacity of 415 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1948, the structure is well-established, with more than 75 years 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 | Delaware |
| Nearest City | Delhi |
| River/Stream | Tr-maquoketa River |
| Coordinates | 42.42400, -91.32840 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 200 ft |
| Year Completed | 1948 (78 years old) |
Storage & Hydraulics
| NID Storage | 415 acre-ft |
| Max Storage | 415 acre-ft |
| Normal Storage | 210 acre-ft |
| Surface Area | 39 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Delaware County Conservation Board |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02035 |
| Federal ID | IA02035 |
| More Info | State Dam Safety Program |