La Tierra Grande Dam dam
La Tierra Grande Dam
Located in Rio Arriba, New Mexico, the La Tierra Grande Dam stands as a testament to engineering excellence and serves as a vital water resource for the region. Constructed in 1991 by Tierra Engineering Consultants, this private dam boasts a height of 28 feet and a length of 1080 feet, with a storage capacity of 127 acre-feet and a surface area of 6.5 acres. Situated along the Rio Brazos, the dam primarily serves the purposes of recreation, fire protection, stock, and small fish pond maintenance.
Despite its significant hazard potential and poor condition assessment, the La Tierra Grande Dam continues to play a crucial role in water management and recreation in the area. The dam features an uncontrolled spillway with a width of 150 feet and can discharge up to 8000 cubic feet per second. With its state-regulated status, the Office of the State Engineer oversees permitting, inspection, and enforcement activities to ensure the dam's safety and compliance with regulations. Although the dam presents moderate risk, efforts are being made to assess and manage potential hazards to safeguard the surrounding community and 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 La Tierra Grande Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Rio Chama Near La Puente | 161 cfs | → |
| Rio Chama Below El Vado Dam | 156 cfs | → |
| Navajo River Bl Oso Diversion Dam Nr Chromo | 90 cfs | → |
| Navajo R At Banded Peak Ranch | 179 cfs | → |
| Rio Chama Above Abiquiu Reservoir | 145 cfs | → |
| Conejos River Near Mogote | 739 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near La Tierra Grande Dam.
Campgrounds
- Heron Lake State Park
- Trout Lakes
- Trout Lakes Campground
- El Vado Lake State Park
- Canjilon Lakes
- Canjilon Lakes Campground
Fishing spots
- Rio Nutritas Fishing
- Hidden Lakes Fishing
- Lagunitas Creek Fishing
- Trujillo Meadows Lake
- Trujillo Meadows Boating Site
- El Rito Creek Fishing
Track La Tierra Grande 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 La Tierra Grande Dam
Where does the data for La Tierra Grande 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 Significant 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 La Tierra Grande Dam.