Bolen dam
Bolen
Bolen, Anderson, Jacobs (B-A-J) is a local government-owned dam located in Grand Junction, Colorado, on Kannah Creek. Constructed in 1969, this earth-type dam stands at a height of 19 feet and has a length of 1500 feet, providing a storage capacity of 568 acre-feet. The primary purpose of the dam is water supply, with a normal storage capacity of 236 acre-feet and a surface area of 55 acres.
Managed by the Colorado Department of Water Resources, B-A-J is regulated, inspected, and enforced by state authorities. Despite being classified as low hazard potential with fair condition assessment, the dam poses a high risk due to its location and the surrounding area's vulnerability. The emergency action plan (EAP) for the dam was last revised in January 2015, with inspection frequency set at every 6 years.
Overall, Bolen, Anderson, Jacobs serves as a vital water resource infrastructure in Mesa County, Colorado, ensuring water supply for the local community. While it has a relatively low hazard potential, the dam's high-risk assessment underscores the importance of continued monitoring and maintenance to ensure the safety and reliability of this essential water source in the region.
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 Bolen -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Colo River Blw Grd Valley Div Nr Palisade Co | 1,890 cfs | → |
| Plateau Creek Near Cameo | 38 cfs | → |
| Gunnison River Near Grand Junction | 1,240 cfs | → |
| Colorado River Near Cameo | 3,400 cfs | → |
| Big Creek At Upper Station | 8 cfs | → |
| Surface Creek At Cedaredge | 39 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Bolen.
Boat launches
- Sunset Boat Access- Grand Valley Rd
- Z Road Delta County
- State Highway 65 25261, Delta County
- Ward Lake Boat Access - Grand Valley Rd
- State Highway 141 Mesa County
- Whitewater Boat Launch
Campgrounds
- Black Bear Cabin
- Moose Manor Cabin
- Jumbo
- Jumbo Campground - Grand Valley Rd
- Spruce Grove - Mesa
- Spruce Grove Campground - Grand Valley Rd
Fishing spots
- Juniata Reservoir
- Carson Lake
- Lost Lake (Grand Mesa
- South Mesa Lake
- Glacier Springs Retention Pond (Grand Mesa)
- Sunset Lake
Track Bolen 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 Bolen
Where does the data for Bolen 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 Bolen.