Howard A. Hanson Dam is located on the upper reach of the Green-Duwamish River in King County, 63 river miles above the mouth. Since dam operations first began in December 1961, the dam has provided flood risk reduction in the Green-Duwamish River Basin by capturing excessive water runoff from the upper drainage area of the river and releasing the water under controlled conditions.
| Date Taken: | 04.27.2022 |
| Date Posted: | 07.20.2026 17:35 |
| Photo ID: | 9821290 |
| VIRIN: | 220427-A-MH093-1007 |
| Resolution: | 5472x3648 |
| Size: | 1.82 MB |
| Location: | SEATTLE, US |
| Web Views: | 7 |
| Downloads: | 0 |
This work, USACE dams reduced flood risk during December 2025 storms, helped prevent billions in potential damages, by Louis Velasco, identified by DVIDS, must comply with the restrictions shown on https://www.dvidshub.net/about/copyright.