Development No.
Wind
Humidity
2 Dam, also known as Bull Run Reservoir No. 2, is a rockfill dam located in Troutdale, Oregon, on the Bull Run River. Built in 1962 by Stevens & Thompson of Portland, OR, this impressive structure stands at a height of 145 feet and has a hydraulic height of 130 feet. The dam serves primarily as a water supply source, with a storage capacity of 25,000 acre-feet and a normal storage capacity of 21,000 acre-feet.
With a spillway width of 450 feet and a maximum discharge capacity of 69,000 cubic feet per second, Development No. 2 Dam is equipped to handle high hazard potential situations. The dam covers a surface area of 418 acres and is associated with one other structure. Despite its age, the dam's risk assessment is moderate, with a DSAC assigned date yet to be determined. Overall, Development No. 2 Dam stands as a critical piece of infrastructure for water supply and management in the region, showcasing the importance of sustainable water resource development in the face of changing climate conditions.
Year Completed |
1962 |
Dam Length |
900 |
Dam Height |
145 |
River Or Stream |
Bull Run River |
Primary Dam Type |
Rockfill |
Surface Area |
418 |
Hydraulic Height |
130 |
Drainage Area |
102 |
Nid Storage |
25000 |
Structural Height |
145 |
Hazard Potential |
High |
Foundations |
Rock |
Nid Height |
145 |
Bull Run River Near Bull Run
|
1960cfs |
South Fork Bull Run River Near Bull Run
|
256cfs |
Little Sandy River Near Bull Run
|
312cfs |
Sandy River Near Marmot
|
2580cfs |
Sandy River Blw Bull Run River
|
5440cfs |
North Fork Bull Run River Near Multnomah Falls
|
155cfs |
| Location | Reservations | Toilets |
|---|---|---|
Oxbow Regional Park
|
||
Ainsworth Campground
|
||
Ainsworth State Park
|