Larsen Dam is an earth dam located in Hays County, Texas. It carries a Significant hazard potential classification.
Dam profile
NID height · 21 ft21 ft tall and 950 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 Larsen Dam
Larsen Dam is a dam in Hays, Texas. The dam is owned by Mike Larsen (private). It impounds the Un Tr-elm Creek.
The dam stands 21 feet tall and stretches 950 feet across, has a maximum storage capacity of 50 acre-feet, and collects water from a drainage area of 25 square miles.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 08/07/2009. That was over 17 years ago.
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Location
| State | Texas |
| County | Hays |
| River/Stream | Un Tr-elm Creek |
| Coordinates | 30.03120, -97.73040 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 950 ft |
Storage & Hydraulics
| NID Storage | 50 acre-ft |
| Max Storage | 50 acre-ft |
| Normal Storage | 13 acre-ft |
| Drainage Area | 25 sq mi |
| Spillway Type | None |
Ownership & Safety
| Owner | Mike Larsen |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 08/07/2009 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX09582 |
| Federal ID | TX09582 |
| More Info | State Dam Safety Program |