Twin Lakes Dam dam
Twin Lakes Dam
Twin Lakes Dam, located in Cedar Park, Texas, was completed in 1972 and serves primarily for recreational purposes. The dam, standing at a height of 26 feet and stretching 300 feet in length, impounds the waters of Buttercup Creek, creating a surface area of 9.8 acres and a storage capacity of 305 acre-feet. The dam is classified as an earth dam with a buttress core type and an uncontrolled spillway type with a width of 400 feet.
Managed by the Texas Commission on Environmental Quality (TCEQ), the dam is state-regulated, permitted, inspected, and enforced to ensure safety and compliance with regulations. The condition of the dam was assessed as fair in 2016, with a moderate risk rating. The dam's hazard potential is not available, but it has a history of regular inspections, with the last one conducted in February 2015. In case of emergencies, the dam has uncontrolled and valve outlet gates for water release.
Twin Lakes Dam provides a picturesque recreational spot in Cedar Park, offering opportunities for boating, fishing, and other water activities. With its moderate risk rating and fair condition assessment, the dam continues to be monitored and maintained to ensure the safety of the surrounding community and water resources. Enthusiasts of water resources and climate can appreciate the careful management and regulatory oversight that goes into maintaining this essential infrastructure.
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 Twin Lakes Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Lake Ck At Lake Ck Pkwy Nr Austin | 1 cfs | → |
| Brushy Ck At Cedar Park | 20 cfs | → |
| Brushy Ck At Ih 35 | 37 cfs | → |
| Bull Ck At Loop 360 Nr Austin | 4 cfs | → |
| Brushy Ck At Kenney Fort Blvd At Round Rock | 36 cfs | → |
| Shoal Ck At Silverway Dr | · | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Twin Lakes Dam.
Boat launches
- Bullick Hollow Road 13601, Austin
- Lime Creek Road 9684-9766, Leander
- Mansfield Park Drive, Austin
- Low Water Crossing Road, Austin
- North Capital Of Texas Highway 5015, Austin
- Greenshores Drive 6921, Travis County
Campgrounds
- Cypress Creek - Lake Travis
- Sandy Creek - Lake Travis
- Arkansas Bend - Lake Travis
- Emma Long Metropolitan Park
- Pace Bend Park - Lake Travis
- Camp Mabry Military
Fishing spots
Track Twin Lakes 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 Twin Lakes Dam
Where does the data for Twin Lakes 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 Twin Lakes Dam.