Two Rivers Diamond A Dam dam
Two Rivers Diamond A Dam
Two Rivers Diamond A Dam, also known as Two Rivers Reservoir, is a federal-owned structure located in Chaves, New Mexico. Built in 1963 by CESPA, the dam serves as a flood risk reduction measure along the Rio Hondo and Rocky Arroyo rivers, with a primary purpose of mitigating potential flooding in the region. The dam is an earth-type structure with a height of 98 feet and a storage capacity of 264,400 acre-feet.
Despite its successful history in reducing flooding, the Two Rivers Dam project still poses a high hazard potential due to the risk of uncontrolled spillway flows during emergency operations. A risk assessment conducted by the US Army Corps of Engineers in 2016 identified the potential for catastrophic downstream damages to residences and infrastructure in communities such as Roswell, Midway, Dexter, and Hagerman in the event of a dam breach. To manage these risks, the USACE implements various measures such as routine inspections, maintenance activities, and risk communication strategies to ensure the safety and integrity of the dam.
In conclusion, while Two Rivers Diamond A Dam has been effective in reducing flood risks in the area, ongoing monitoring and maintenance efforts are crucial to prevent potential catastrophic outcomes in the event of a dam breach. The US Army Corps of Engineers remains committed to managing and mitigating risks associated with the dam through a comprehensive risk management approach that includes regular inspections, maintenance activities, and communication with the affected communities downstream of the project.
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 Two Rivers Diamond A Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Rio Hondo Blw Diamond A Dam Nr Roswell | · | → |
| Rio Hondo At Diamond A Ranch Nr Roswell | · | → |
| Rio Hondo Near Roswell | 2 cfs | → |
| Rio Felix At Old Hwy Brd Nr Hagerman | · | → |
| Pecos River Near Acme | 97 cfs | → |
| Pecos River Near Lake Arthur | 214 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Two Rivers Diamond A Dam.
Track Two Rivers Diamond A 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 Two Rivers Diamond A Dam
Where does the data for Two Rivers Diamond A 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 High 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 Two Rivers Diamond A Dam.