Tim Lau Site 2 is an earth dam located in Clarke County, Iowa, built in 2016. It carries a Low hazard potential classification.
Dam profile
NID height · 35 ft35 ft tall and 473 ft long, taller than 80% 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 Tim Lau Site 2
The primary purpose of Tim Lau Site 2 is grade stabilization. Grade stabilization dams prevent erosion by reducing the slope and velocity of water flowing through a channel. They're commonly used to stop gullies from deepening and to protect downstream land and infrastructure. The dam is owned by Tim Lau (private). It impounds the Squaw Creek near Indianola.
The dam stands 35 feet tall and stretches 473 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 63 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2016, 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.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Iowa |
| County | Clarke |
| Nearest City | Indianola |
| River/Stream | Squaw Creek |
| Coordinates | 41.06900, -93.91930 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 473 ft |
| Year Completed | 2016 (10 years old) |
Storage & Hydraulics
| NID Storage | 63 acre-ft |
| Max Storage | 63 acre-ft |
| Normal Storage | 36 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 25 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Tim Lau |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04245 |
| Federal ID | IA04245 |
| More Info | State Dam Safety Program |