Windspeed
Humidity
Dexter Dam, located on the Middle Fork Willamette River in Oregon, was completed in 1955 by the US Army Corps of Engineers for flood risk reduction. Standing at 117 feet tall, the earth dam has a maximum storage capacity of 29,900 acre-feet and serves multiple purposes including hydroelectric power generation, irrigation, navigation, and recreation. Despite being classified as a high hazard potential dam, a 2015 risk assessment determined the overall risk associated with Dexter Dam to be low, with no immediate need for modifications.
USACE continues to monitor and assess the dam's condition through routine inspections and instrumentation, with a focus on earthquake preparedness and emergency response plans. While the dam greatly reduces flood risks for the region, it cannot eliminate the potential for flooding during extreme weather events. The agency is committed to ongoing risk management measures, including updating the Emergency Action Plan, conducting dam safety exercises, and increasing community awareness of flood risks associated with the dam. Overall, Dexter Dam remains a critical infrastructure for flood protection in the Willamette Valley, supported by comprehensive risk assessments and proactive risk reduction strategies.
Year_Completed | 1955 |
Dam_Height | 65 |
River_Or_Stream | MIDDLE FORK WILLAMETTE RIVER |
Dam_Length | 2765 |
Primary_Dam_Type | Earth |
Surface_Area | 1025 |
Hydraulic_Height | 60 |
Drainage_Area | 996 |
Nid_Storage | 29900 |
Structural_Height | 117 |
Hazard_Potential | High |
Foundations | Rock, Soil |
Nid_Height | 117 |
M F WILLAMETTE R AB SALT CR. | 1490cfs |
FALL CREEK BLW WINBERRY CREEK | 222cfs |
ROW RIVER NEAR COTTAGE GROVE | 215cfs |
COAST FORK WILLAMETTE R BLW COTTAGE GROVE DAM | 89cfs |
ROW RIVER ABOVE PITCHER CREEK NEAR | 280cfs |
MF WILLAMETTE RIVER BLW N FORK | 3400cfs |
WINBERRY CREEK NEAR LOWELL | 57cfs |