Green Point-Lower (No. 1) dam
Green Point-Lower (No. 1)
Green Point-Lower (No. 1), also known as Green Point Dam No. 1, is a significant earth dam located in Hood River, Oregon, with a primary purpose of irrigation. Built in 1938, this dam stands at a height of 36 feet and has a hydraulic height of 34 feet, providing vital water storage of 275 acre-feet for agricultural use. The dam spans 558 feet in length and covers a surface area of 13.9 acres, serving as a crucial water resource for the surrounding area.
Managed by the local government and regulated by the Oregon Water Resources Department, Green Point-Lower (No. 1) has a moderate risk assessment rating of 3, indicating the potential for hazards if not properly maintained. With a significant hazard potential, regular inspections are conducted every three years to ensure the structural integrity and safety of the dam. Although the condition assessment is currently not rated, the dam plays a crucial role in water management for the region, highlighting the importance of ongoing monitoring and risk management measures.
In the event of emergencies, the effectiveness of the Emergency Action Plan (EAP) for Green Point-Lower (No. 1) is not specified, emphasizing the need for updated protocols and guidelines to mitigate risks effectively. With a history of serving the community for irrigation purposes, this dam on Green Point Creek remains a vital infrastructure for water resource management in Hood River, Oregon, requiring continued attention to ensure its functionality and safety 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 Green Point-Lower (No. 1) -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Hood River At Tucker Bridge | 389 cfs | → |
| White Salmon River Near Underwood | 910 cfs | → |
| Mosier Creek Near Mosier | 4 cfs | → |
| Bull Run River At Lower Flume Nr Brightwood | 24 cfs | → |
| Blazed Alder Creek Near Rhododendron | 18 cfs | → |
| Bull Run River Near Multnomah Falls | 156 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Green Point-Lower (No. 1).
Boat launches
- Kingsley Campground
- Lewis And Clark Trail Highway Skamania County
- Port Of Cascade Locks
- East Marina Way, Cook
- Lost Lake Resort
- Laurance Lake
Campgrounds
- Viento State Park
- Viento State Park North Campground
- North Lake Campsite
- Black Lake Campground
- Wyeth - Columbia River Gorge Area
- Wyeth Campground
Paddle runs
- Hemlock Road Bridge To Gifford Pinchot Nf Boundary
- Confluence Clear And Coe Creeks To Mt. Hood Nf Boundary
- Headwaters In Sw1/4 Of Sec 13, T6n, R7e To Hemlock Road Bridge In Nw1/4 Of Sec 26, T4n, R7e
- Mt. Hood Wilderness Boundary To Confluence With Sandy River
- Sandy River
- Welches Run
Track Green Point-Lower (No. 1) 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 Green Point-Lower (No. 1)
Where does the data for Green Point-Lower (No. 1) 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 Green Point-Lower (No. 1).