Onstead Gss is an earth dam located in Waller County, Texas, built in 1974. It carries a Low hazard potential classification.
Dam profile
NID height · 21 ft21 ft tall and 832 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 Onstead Gss
Onstead Gss is a dam in Waller, Texas. The dam is owned by Robert Onstead (private). It impounds the Tr-cedar Creek.
The dam stands 21 feet tall and stretches 832 feet across, and has a maximum storage capacity of 127 acre-feet. Completed in 1974, the structure is well into its service life at over 50 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.
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Location
| State | Texas |
| County | Waller |
| River/Stream | Tr-cedar Creek |
| Coordinates | 30.23167, -96.00500 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 832 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 127 acre-ft |
| Max Storage | 127 acre-ft |
| Normal Storage | 48 acre-ft |
| Spillway Type | None |
Ownership & Safety
| Owner | Robert Onstead |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX06162 |
| Federal ID | TX06162 |
| More Info | State Dam Safety Program |