Thirtieth Street Dam dam
Thirtieth Street Dam
Thirtieth Street Dam, located in Farmington, New Mexico, serves as a vital structure for flood risk reduction along the College Arroyo. Built in 1979 by Bohannon Huston, Inc., this earth dam stands at 22 feet high and stretches 550 feet in length, with a storage capacity of 135 acre-feet. Despite its crucial role in mitigating flood hazards, the dam's condition assessment is labeled as poor, posing a high hazard potential.
This dam is regulated by the Office of the State Engineer in New Mexico, with state permitting, inspection, and enforcement in place to ensure its safety and functionality. The spillway, with a width of 28 feet, is uncontrolled, allowing for a maximum discharge of 3107 cubic feet per second. The dam's location in San Juan County makes it a key player in water resource management in the region, highlighting the importance of maintaining and monitoring its structural integrity closely.
While the Thirtieth Street Dam plays a critical role in flood risk reduction, its current poor condition warrants attention and potential risk management measures to ensure the safety of surrounding communities. As water resource and climate enthusiasts, it is important to stay informed about the state of infrastructure like this dam and advocate for necessary investments in maintenance and upgrades to protect against potential disasters and preserve the area's water resources for future generations.
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 Thirtieth Street Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Animas River At Farmington | 775 cfs | → |
| San Juan River At Farmington | 950 cfs | → |
| La Plata River Near Farmington | 0 cfs | → |
| Animas River Below Aztec | 773 cfs | → |
| La Plata River At La Plata | 4 cfs | → |
| La Plata River At Colorado-New Mexico State Line | 23 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Thirtieth Street Dam.
Campgrounds
- Dunes Ohv Vehicle Ra
- Angel Peak
- Cox Canyon Arch Primitive Campsite
- Angel Peak Scenic Area
- Cottonwood - Navajo Lake State Park
- Simon Canyon Dispersed
Fishing spots
Track Thirtieth Street 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 Thirtieth Street Dam
Where does the data for Thirtieth Street 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 Thirtieth Street Dam.