Holland Marsh Dam is an earth dam located in Grundy County, Iowa, built in 1997. It carries a Low hazard potential classification.
Dam profile
NID height · 11 ft11 ft tall and 930 ft long. 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 Holland Marsh Dam
The primary purpose of Holland Marsh Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Grundy County Conservation Board (local government). It impounds the Tr- Holland Creek near Holland.
The dam stands 11 feet tall and stretches 930 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 53 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1997, the structure is 29 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Iowa |
| County | Grundy |
| Nearest City | Holland |
| River/Stream | Tr- Holland Creek |
| Coordinates | 42.40060, -92.81010 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 930 ft |
| Year Completed | 1997 (29 years old) |
Storage & Hydraulics
| NID Storage | 53 acre-ft |
| Max Storage | 53 acre-ft |
| Normal Storage | 17 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Grundy County Conservation Board |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA03126 |
| Federal ID | IA03126 |
| More Info | State Dam Safety Program |