Jim Porter Dam dam
Jim Porter Dam
Jim Porter Dam, located in Collin, Texas, stands as a crucial water resource management structure along the TR-Red River. Built in 1972 by the USDA NRCS, this privately owned Earth dam serves multiple purposes including fire protection, stock, and small fish pond management. With a height of 29 feet and a length of 676 feet, the dam has a storage capacity of 168 acre-feet, providing essential water management solutions for the region.
Managed by the Texas Commission on Environmental Quality (TCEQ), Jim Porter Dam is designed to withstand high-risk scenarios, with a hazard potential rating of "Not Available" and a risk assessment level of "High (2)". Despite its critical role in water resource management, the dam's condition assessment remains unrated, highlighting the need for regular inspections and maintenance to ensure its long-term sustainability. The dam does not have a spillway and is equipped with one outlet gate.
While the dam does not have a detailed emergency action plan in place, its strategic location and design make it a key asset for water conservation efforts in the area. As climate change continues to impact water resources, Jim Porter Dam's role in mitigating risks and ensuring water security for the community underscores the importance of ongoing monitoring and maintenance to safeguard its integrity and functionality.
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 Jim Porter Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Range Ck Nr Collinsville | 2 cfs | → |
| Little Elm Ck Nr Aubrey | 23 cfs | → |
| Timber Ck Nr Collinsville | 1 cfs | → |
| Doe Br At Us Hwy 380 Nr Prosper | 25 cfs | → |
| Elm Fk Trinity Rv At Greenbelt Nr Pilot Point | 33 cfs | → |
| Wilson Ck Dws Of Hwy 75 At Mckinney | 28 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Jim Porter Dam.
Boat launches
- Denton County
- Fairview Circle Denton County
- Cooke County
- Fm 1190 Denton County
- Jones Road Denton County
- Marina Circle Denton County
Campgrounds
- Constellation Park Campsite #2
- Constellation Park Campsite #1
- Constellation Park Campsite #3
- Constellation Park Campsite #4
- Isle Du Bois - Roberts Lake State Park
- Erwin Park - Mckinney
Fishing spots
Track Jim Porter 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 Jim Porter Dam
Where does the data for Jim Porter 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 Jim Porter Dam.