Mansfield Dam dam
Mansfield Dam
Mansfield Dam, located in Travis County, Texas, is a key structure along the Colorado River designed by the Department of the Interior Bureau of Reclamation in 1942. This rockfill dam stands at an impressive height of 277 feet and spans over 7,000 feet in length, with a primary purpose of flood risk reduction. The dam has a storage capacity of over 3 million acre-feet and serves various purposes including hydroelectric power generation, irrigation, and water supply for the region.
Managed by local government authorities and regulated by the Texas Commission on Environmental Quality, Mansfield Dam plays a crucial role in safeguarding the surrounding area from flooding. With a satisfactory condition assessment and a regular inspection frequency, the dam ensures the safety and security of its infrastructure. The dam's association with the Galveston District of the US Army Corps of Engineers underscores its importance in water resource management in the region.
As a significant landmark in the water resource and climate sector, Mansfield Dam not only provides essential flood protection but also contributes to the sustainable development of the area. With its strategic location and impressive engineering, Mansfield Dam stands as a testament to effective water management practices, serving as a vital asset for the community of Austin and beyond.
Dam data reference
Condition Assessment
- Satisfactory
- No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
- Fair
- No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
- Poor
- A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
- Unsatisfactory
- A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
- Not Rated
- The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Hazard Potential Classification
- High
- Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
- Significant
- Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
- Low
- Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
- Undetermined
- Dams for which a downstream hazard potential has not been designated or is not provided.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Mansfield Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Barton Ck At Sh 71 Nr Oak Hill | 4 cfs | → |
| Bull Ck At Loop 360 Nr Austin | 7 cfs | → |
| Lake Ck At Lake Ck Pkwy Nr Austin | 1 cfs | → |
| Barton Ck At Lost Ck Blvd Nr Austin | 9 cfs | → |
| Shoal Ck At Silverway Dr | 0 cfs | → |
| Williamson Ck At Oak Hill | · | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mansfield Dam.
Boat launches
- Mansfield Park Drive, Austin
- Low Water Crossing Road, Austin
- Bullick Hollow Road 13601, Austin
- South Quinlan Park Road 1501, Austin
- Lime Creek Road 9684-9766, Leander
- Greenshores Drive 6921, Travis County
Campgrounds
- Arkansas Bend - Lake Travis
- Cypress Creek - Lake Travis
- Sandy Creek - Lake Travis
- Emma Long Metropolitan Park
- Pace Bend Park - Lake Travis
- Camp Mabry Military
Track Mansfield Dam in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Mansfield Dam
Where does the data for Mansfield Dam come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the Not Available hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Mansfield Dam.