Fourth Creek Reservoir dam
Fourth Creek Reservoir
Fourth Creek Reservoir, located in Coos County, Oregon, is a private water supply reservoir with a primary purpose of providing water for various uses. Constructed in 1930, this Earth dam stands at a height of 12 feet and has a storage capacity of 21 acre-feet. The reservoir covers a surface area of 5.2 acres and has a drainage area of 1.2 square miles, with a maximum discharge capacity of 70 cubic feet per second.
Managed by the Oregon Water Resources Department, Fourth Creek Reservoir is a significant water resource in the area, serving as a vital source for the surrounding community. Although the dam is rated as having a significant hazard potential, its condition is currently not rated, indicating the need for further assessment and potential risk management measures. With its picturesque location and important role in water supply, Fourth Creek Reservoir is a key asset in Oregon's water infrastructure.
As a private facility, Fourth Creek Reservoir is subject to state regulation, permitting, inspection, and enforcement to ensure its safety and compliance with water resource management standards. While specific details on emergency action plans and risk assessments are not provided in the data, the reservoir's ownership and management fall under private entities, highlighting the importance of proper maintenance and monitoring to safeguard this valuable water source for the future.
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 Fourth Creek Reservoir -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| South Fork Coquille River At Powers | 102 cfs | → |
| Little Wolf Creek Near Tyee | 3 cfs | → |
| Umpqua River Near Elkton | 1,710 cfs | → |
| North Umpqua River At Winchester | 1,250 cfs | → |
| South Umpqua River Near Brockway | 387 cfs | → |
| West Fork Cow Creek Near Glendale | 25 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Fourth Creek Reservoir.
Boat launches
- Holland Avenue, Coos Bay
- John Topits Upper Lake
- North Spit
- City Dock
- Eastside Boat Ramp
- California Street 400-444, North Bend
Campgrounds
- Bastendorff Campground
- #69 & 70
- Bluebill Campground
- Rooke - Higgins County Park
- Blue Ridge Trails Staging Area
- Sturdivant City Park
Paddle runs
- South Fork Coos River
- Eastern Siuslaw Nf Boundary To East Section Line Of Ne1/4se1/4 Of Sec 16, T21s, R10w
- East Section Line Of Ne1/4se1/4 Of Sec 16, T21s, R10w To Confluence With Smith River
- Sixes River
- South Fork Coquille River
- Coquille River Rna Boundary (Western) To Siskiyou Nf Boundary (North Section Line Sec 6, T32s, R11w
Track Fourth Creek Reservoir 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 Fourth Creek Reservoir
Where does the data for Fourth Creek Reservoir 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 Fourth Creek Reservoir.