Lake Rr2 Dam dam
Lake Rr2 Dam
Lake Rr2 Dam, located in McKinney, Texas, is a privately owned structure designed by Petsche & Associates. The dam, completed in 1955, stands at a height of 21 feet with a structural height of 26.7 feet and a length of 356 feet. It serves primarily for recreation purposes, offering a serene environment for water enthusiasts to enjoy activities like boating and fishing.
Managed by the Texas Commission on Environmental Quality (TCEQ), Lake Rr2 Dam has a normal storage capacity of 3 acre-feet and a maximum storage of 12 acre-feet. The dam overlooks the TR-Wilson Creek and has a drainage area of 0.06 square miles. Despite being classified as fair in condition assessment, the hazard potential of the dam is not available, with a moderate risk assessment rating of 3.
With an uncontrolled spillway type and one outlet gate, Lake Rr2 Dam has undergone structural modifications in 2005 to ensure its continued safety and functionality. While the dam poses a moderate risk, its recreational significance and picturesque surroundings make it a popular destination for water resource and climate enthusiasts seeking a tranquil getaway in Collin County, Texas.
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 Lake Rr2 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Wilson Ck Dws Of Hwy 75 At Mckinney | 28 cfs | → |
| E Fk Trinity Rv Nr Mckinney | 66 cfs | → |
| Doe Br At Us Hwy 380 Nr Prosper | 25 cfs | → |
| Little Elm Ck Nr Aubrey | 23 cfs | → |
| Sister Grove Ck Nr Blue Ridge | 18 cfs | → |
| Indian Ck At Fm 2281 | 10 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Rr2 Dam.
Boat launches
- Blue Sky Drive The Colony
- Highland Park Collin County
- Bratonia Park Road Collin County
- Brockdale Park Road Wylie
- Trinity Trail Wylie
- Twin Groves Park Road Collin County
Campgrounds
- Erwin Park - Mckinney
- Constellation Park Campsite #4
- Constellation Park Campsite #3
- Constellation Park Campsite #2
- Constellation Park Campsite #1
- Little Elm Park
Fishing spots
Track Lake Rr2 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 Lake Rr2 Dam
Where does the data for Lake Rr2 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 Lake Rr2 Dam.