Knox Meadow dam
Knox Meadow
Located in Idaho's Valley County, Knox Meadow, also known as Cruickshank Reservoir, is a privately owned water resource that serves primarily for irrigation purposes. Built in 1941, this earth dam structure stands at a height of 18.5 feet, with a hydraulic height of 12.8 feet, providing a storage capacity of 1,073 acre-feet. The reservoir covers a surface area of 156 acres and is situated on an unnamed stream in Lake Fork, contributing to a drainage area of 1.4 square miles.
With a spillway designed for controlled release, Knox Meadow has a spillway width of 7 feet and a maximum discharge rate of 63 cubic feet per second. Despite being classified as having a significant hazard potential, the dam is currently in fair condition as of its last inspection in May 2017. The risk assessment for this structure indicates a very high risk level, emphasizing the importance of ongoing maintenance and monitoring to ensure the safety and integrity of the reservoir. Water resource and climate enthusiasts will find Knox Meadow to be an intriguing example of human-made infrastructure supporting agricultural activities in Idaho's rural landscape.
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 Knox Meadow -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Lake Fork Payette River Ab Jumbo Cr Nr Mccall Id | 529 cfs | → |
| Nf Payette River At Mccall Id | 825 cfs | → |
| Sf Salmon River Nr Krassel Ranger Station Id | 1,330 cfs | → |
| Johnson Creek At Yellow Pine Id | 1,380 cfs | → |
| Sugar Creek Nr Stibnite | 45 cfs | → |
| Efsf Salmon R Abv Sugar Crk Nr Stibnite | 132 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Knox Meadow.
Boat launches
- Warren Wagon Road Mccall
- Fisher Creek Road Adams County
- Valley County
- Grouse Creek Campground Road Adams County
- Granite Lake Dam Road Valley County
- National Forest Development Road 422 Valley County
Campgrounds
- Mccall Campground & Rv Park
- Ponderosa State Park
- Lake Fork Campground
- Black Lee Dispersed Camp Site
- Rapid Creek Dispersed Camping Area
- Paddy Flat Guard Station Rental Cabin
Track Knox Meadow 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 Knox Meadow
Where does the data for Knox Meadow 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 Knox Meadow.