Pacific Plywood Log Pond dam
Pacific Plywood Log Pond
Located in Willamina, Oregon, the Pacific Plywood Log Pond, also known as the Willamina Sewage Lagoon, is a significant water resource managed by the local government. This earth dam structure, completed in 1944, stands at a height of 15 feet with a storage capacity of 132 acre-feet. Situated along the Willamina River, this pond serves various purposes and is regulated by the Oregon Water Resources Department.
With a low hazard potential and a condition assessment of "Not Rated," the Pacific Plywood Log Pond is integral to the local water management infrastructure. Equipped with a slide (sluice gate) outlet gate, this dam has a structural height of 15 feet and a hydraulic height of 10 feet. Despite its age, the dam remains a crucial component for flood control and water storage in the region, demonstrating its importance in maintaining water resources in Yamhill County, Oregon.
Although last inspected in 2016, the Pacific Plywood Log Pond is subject to regular inspections every 6 years to ensure its structural integrity and functionality. With no documented risk assessment or emergency action plan in place, there is a need for continued monitoring and management of this dam to mitigate any potential risks or issues that may arise in the future. Water resource and climate enthusiasts should take note of this site as it plays a crucial role in the local water management system and environmental conservation efforts.
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 Pacific Plywood Log Pond -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| South Yamhill River At Mcminnville | 286 cfs | → |
| Tucca Creek Near Blaine | 7 cfs | → |
| Nestucca River Near Beaver | 247 cfs | → |
| Willamette River At Salem | 10,600 cfs | → |
| Luckiamute River Near Suver | 199 cfs | → |
| Trask River Above Cedar Creek | 316 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Pacific Plywood Log Pond.
Boat launches
Campgrounds
- Rocky Bend
- Rocky Bend Campground
- Rocky Bend Group Campground
- Alder Glen Campground
- Elk Bend Campground
- South Lake
Track Pacific Plywood Log Pond 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 Pacific Plywood Log Pond
Where does the data for Pacific Plywood Log Pond 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 Pacific Plywood Log Pond.