Flag Branch Lake Dam dam
Flag Branch Lake Dam
Flag Branch Lake Dam, located in Bosque, Texas, was completed in 1954 and serves as a vital irrigation source in the region. Owned by a private entity and designed by CHILDRESS AND RECER, this earth dam stands at 39 feet tall with a length of 1050 feet. With a maximum storage capacity of 455 acre-feet and a normal storage of 248 acre-feet, the dam plays a crucial role in water resource management for the area.
The dam features an uncontrolled spillway with a width of 250 feet and four uncontrolled outlet gates. Despite being state-regulated with permitting and inspection in place, the dam's condition assessment is currently not rated. The hazard potential is listed as "Not Available" while the risk assessment is moderate. These factors highlight the importance of continued monitoring and maintenance to ensure the safety and effectiveness of Flag Branch Lake Dam for both irrigation purposes and local water resources.
In the event of an emergency, the presence of an Emergency Action Plan (EAP) is not indicated, raising potential concerns for preparedness. With the risk management measures and flood risk assessments not clearly outlined, there is a call for enhanced risk mitigation strategies and updated emergency protocols for the dam. As water resource and climate enthusiasts, it is crucial to advocate for comprehensive safety measures and sustainable practices to protect this essential infrastructure and the surrounding environment.
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 Flag Branch Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| N Bosque Rv At Hico | 7 cfs | → |
| Paluxy Rv At Glen Rose | 6 cfs | → |
| Brazos Rv Nr Glen Rose | 26 cfs | → |
| Leon Rv Nr Hamilton | 12 cfs | → |
| Brazos Rv Ds Lk Granbury Nr Granbury | 17 cfs | → |
| N Bosque Rv Nr Clifton | 37 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Flag Branch Lake Dam.
Boat launches
- Coates Road 2200, Granbury
- Us 67 Somervell County
- Plowman Creek Park Road, Morgan
- Farm To Market 927, Morgan
- Pr 21 North 2212, Cleburne
- County Road 1304, Morgan
Campgrounds
- Hico City Park
- Dinosaur Valley State Park
- Meridian State Park
- Stephenville City Park
- Thorp Spring - Lake Granbury
- Dublin City Park
Fishing spots
Track Flag Branch Lake 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 Flag Branch Lake Dam
Where does the data for Flag Branch Lake 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 Flag Branch Lake Dam.