Dam Report

Fenton Lake Dam dam

New Mexico, USA Rio Cebolla Hazard High
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Tonight low
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Dam height
41ft
Hazard rating
High
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Fenton Lake Dam -- None dam
Fenton Lake Dam None · Rio Cebolla
About this dam

Fenton Lake Dam

Fenton Lake Dam, located in Sandoval, New Mexico, is a state-regulated structure with a primary purpose of recreation, specifically for fish and wildlife ponds. Built in 1946, this earth dam stands at 41 feet high with a hydraulic height of 30 feet, creating a storage capacity of 721 acre-feet. The dam spans 362 feet in length and has a spillway width of 200 feet, designed as an uncontrolled spillway to manage a maximum discharge of 23,000 cubic feet per second.

Managed by the Office of the State Engineer, Fenton Lake Dam is in fair condition with a high hazard potential. The dam's last inspection in June 2020 revealed its moderate risk level and its emergency action plan was last revised in January 2016. Despite its age, Fenton Lake Dam continues to provide a vital recreational and environmental resource for the surrounding area, contributing to the conservation of the Rio Cebolla river ecosystem and offering opportunities for outdoor enthusiasts to enjoy its serene waters and scenic surroundings. With ongoing state regulation and inspection, Fenton Lake Dam remains a key component of water resource management in New Mexico.

StateNone
River / streamRio Cebolla
NID IDNM00177
Owner typeState
Primary purposeRecreation
Dam typeEarth
Year built1946
Dam height41 ft
Dam length362 ft
Max storage721 AF
Normal storage256 AF
Surface area32.0 ac
Drainage area47.0 sq mi
Hazard potentialHigh
ConditionFair
Last inspectionWed, 03 Jun 2020 00:00:00 GMT

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.
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Fenton Lake Dam -- inflows here typically show up in storage 24-72 hours later.

Track Fenton Lake 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.

FAQ

About Fenton Lake Dam

Where does the data for Fenton Lake 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.

Premium feature

Favorites and alerts are part of Snoflo Premium. Save reservoirs, set storage thresholds, and get push notifications when conditions cross.

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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

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