Chester No. 4 dam
Chester No. 4
Chester No. 4 is a privately-owned dam located in Sanpete, Utah, with a primary purpose of irrigation. Constructed in 1883, this Earth-type dam has a structural height of 10 feet and a storage capacity of 89 acre-feet. It is regulated by the Utah Division of Water Rights, with state permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations.
The dam is situated on Canal and Oak Creeks, draining into the San River, and falls under the jurisdiction of the Omaha District. With a low hazard potential and a condition assessment that is currently not rated, Chester No. 4 poses minimal risk. The last inspection took place in May 2017, with a scheduled inspection frequency of 5 years. While there is no Emergency Action Plan (EAP) in place at present, the dam meets guidelines and is equipped with emergency contacts for any unforeseen events.
Water resource and climate enthusiasts will appreciate Chester No. 4 for its historical significance and role in supporting agricultural activities in the region. As a crucial part of the local irrigation infrastructure, this dam serves as a reminder of the importance of water management and the need for ongoing monitoring and maintenance to ensure the safety of both the structure and the surrounding community.
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 Chester No. 4 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Ephraim Tunnel Near Ephraim | 6 cfs | → |
| Manti Creek Below Dugway Creek | 18 cfs | → |
| Fairview Tunnel Near Fairview | 3 cfs | → |
| Salt Crk Blw Nephi Powerplant Div | 10 cfs | → |
| Salt Creek At Nephi | 9 cfs | → |
| Mud Creek Bl Winter Quarters Canyon At Scofield | 16 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Chester No. 4.
Boat launches
Campgrounds
- Spring City
- Maple Canyon Campground
- Maple Canyon
- Lake Hill
- Lake Hill Campground
- Seely Creek Guard Station
Fishing spots
- New Canyon Reservoir
- Lake Hill Community Reservoir
- Potters Ponds
- Soup Bowl Reservoir
- Petes Hole Reservoir
- Petes Hole
Paddle runs
Track Chester No. 4 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 Chester No. 4
Where does the data for Chester No. 4 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 Low 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 Chester No. 4.