Peyralans Reservoir dam
Peyralans Reservoir
Peyralans Reservoir, located in Multnomah County, Oregon, is a significant water resource managed by the local government. This reservoir is regulated by the Oregon Water Resources Department, ensuring its safe operation and maintenance. With a height of 23 feet and a storage capacity of 12 acre-feet, Peyralans Reservoir plays a crucial role in managing water supply and flood control in the area.
Sitting on Butler Creek and under the jurisdiction of the Portland District, Peyralans Reservoir is a key infrastructure that contributes to the overall water management system in the region. Despite its modest size, this reservoir has a significant hazard potential, making regular inspections and maintenance crucial to ensure its integrity and safety. With its location in a populated area, emergency preparedness and risk management measures are essential components in maintaining the reservoir's functionality and protecting surrounding communities.
Water resource and climate enthusiasts will find Peyralans Reservoir to be an intriguing case study in local water management practices. With its state-regulated status and critical role in water supply and flood control, this reservoir serves as a valuable asset in the region's infrastructure. Monitoring its condition, hazard potential, and emergency preparedness efforts are essential for ensuring the continued safety and effectiveness of Peyralans Reservoir in the face of changing environmental conditions and potential risks.
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 Peyralans Reservoir -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Johnson Creek At Regner Road | 3 cfs | → |
| Kelley Creek At Se 159th Drive At Portland | 1 cfs | → |
| Johnson Creek At Sycamore | 3 cfs | → |
| Fairview Creek At Glisan St Near Gresham | 6 cfs | → |
| Beaver Creek At Troutdale | 1 cfs | → |
| Clackamas River Near Oregon City | 1,290 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Peyralans Reservoir.
Boat launches
Campgrounds
- Barton Park Camping
- Barton Park
- Oxbow Regional Park
- Clackamette Rv Park
- Kingfisher Group Camp
- Mciver State Park
Paddle runs
- Clackamas River
- North Section Line Of Sec 17, T4s, R5e To Slackwater North Fork Reservoir
- Headwaters To North Section Line Of Sec 17, T4s, R5e
- Sandy River
- Headwaters In Sw 1/4 Of Sec 8, T4n, R6e To Gifford Pinchot Nf Boundary
- Mt. Hood Wilderness Boundary To Confluence With Sandy River
Track Peyralans 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 Peyralans Reservoir
Where does the data for Peyralans 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 Peyralans Reservoir.