Maple Grove dam
Maple Grove
Maple Grove, also known as Maple Grove Dam, is a private water resource structure located in Polk, Oregon. Completed in 1995, this earth dam serves primarily for irrigation purposes, with a storage capacity of 210 acre-feet and a surface area of 13 acres. Situated on an unnamed tributary of the Luckiamute River, Maple Grove Dam is regulated by the Oregon Water Resources Department and undergoes regular inspections to ensure its safety and compliance with state regulations.
With a low hazard potential and a moderate risk assessment rating, Maple Grove Dam is considered to be a reliable and well-maintained structure. Its spillway type is uncontrolled, with slide (sluice gate) outlet gates. The dam has not been modified since its completion and has not been rated for its current condition. While it does not have a designated Emergency Action Plan (EAP) in place, Maple Grove Dam remains an essential asset for irrigation and fish and wildlife pond purposes in the region.
Overall, Maple Grove Dam plays a crucial role in managing water resources in the area, providing essential irrigation support and contributing to the local ecosystem. Its location in a remote area with no downstream settlement ensures minimal risk to surrounding communities in the event of a failure. This private structure, designed by BOATWRIGHT, highlights the importance of sustainable water management practices and serves as a testament to the cooperation between private owners and state regulatory agencies in safeguarding our water resources for future generations.
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 Maple Grove -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Luckiamute River Near Suver | 205 cfs | → |
| Willamette River At Corvallis | 6,280 cfs | → |
| Willamette River At Albany | 6,600 cfs | → |
| Santiam River At Jefferson | 2,930 cfs | → |
| Marys River Near Philomath | 107 cfs | → |
| Willamette River At Salem | 10,200 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Maple Grove.
Boat launches
- Riverview Park
- Buena Vista County Park
- Hyak Park
- Santiam Rest Area (Old Ramp)
- Corvallis Ramp
- Takena Landing
Campgrounds
- Benton Oaks Rv
- Philomath Frolic And Rodeo Grounds
- Albany Koa
- Marys Peak
- Marys Peak Campground
- Big Elk Campground
Paddle runs
Track Maple Grove 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 Maple Grove
Where does the data for Maple Grove 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 Maple Grove.