Markle Lake Levee dam
Markle Lake Levee
Markle Lake Levee is a private water resource structure located in Brazoria, Texas, designed by Phillips Petroleum in 1940. This levee serves as a protective barrier along TR-Cedar Lake Creek and has a height of 10 feet and a total length of 9500 feet. With a storage capacity of 1256 acre-feet, the levee plays a crucial role in regulating water levels, particularly during times of high discharge.
Despite its age, Markle Lake Levee remains in good condition with a hazard potential of 'Not Available'. However, the risk assessment categorizes it as high, indicating the need for ongoing monitoring and maintenance. The levee does not have a spillway and is equipped with one outlet gate. While the last inspection was conducted in 1982, the structure has not received a formal condition assessment or emergency action plan review in recent years.
Water resource and climate enthusiasts interested in the Markle Lake Levee can appreciate its historical significance and the vital role it plays in protecting the surrounding area from flooding. As a privately owned structure regulated by the Texas Commission on Environmental Quality (TCEQ), the levee serves as a testament to the engineering expertise of its designer and the importance of maintaining infrastructure to ensure the safety of communities and the 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 Markle Lake Levee -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Colorado Rv Nr Bay City | 2,310 cfs | → |
| San Bernard Rv Nr Boling | 292 cfs | → |
| Brazos Rv Nr Rosharon | 8,500 cfs | → |
| Colorado Rv Nr Wadsworth | 1,640 cfs | → |
| Tres Palacios Rv Nr Midfield | 178 cfs | → |
| Colorado Rv At Wharton | 529 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Markle Lake Levee.
Boat launches
- Lake Jackson
- Sergeant Joe Parks, Jr. Memorial Highway, Bay City
- Farm To Market Road 521 Matagorda County
- Yellowstone Landing Trail Fort Bend County
- Brazoria County
- Swan Lake Boat Landing Freeport
Track Markle Lake Levee 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 Markle Lake Levee
Where does the data for Markle Lake Levee 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 Markle Lake Levee.