Landslide Reconnaissance Following the December 3, 2007 Storm - Thurston County
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Landslide Reconnaissance Following the December 3, 2007 Storm - Thurston County 
 

Tumwater

On December 3rd, rapidly melting snow and intense rain sent many of the South Sound rivers into flood stage. The Deschutes River was one of the rivers reaching flood stage, flowing over its banks, and flooding residences, roads, and businesses.  We investigated flooding of the Deschutes River in the Tumwater Valley area.

Map 1: The location map of the Deschutes River flooding in Tumwater Valley. Click on the map for a larger image.

Tumwater Brewery

Figure 1: The Deschutes River, which is on the other side of the water, flooded around the warehouses around the old Olympia Brewery. Click on the photo for a larger image. (photo by Isabelle Sarikhan)

Pioneer Park

Figure 2: A view of 58th Ave SE in Tumwater, across from the entrance to Pioneer Park. Note the mailboxes in the center of the photo; many of the houses to the right are flooded. Click on the photo for a larger image.

 

Figure 3: A view of the entrance of Pioneer Park. The Deschutes River channel is to the south and flows to the west. As the Deschutes River entered flood stage, the water flowed north into the lower elevation of Pioneer Park. Click on the photo for a larger image.  

 

Figure 4: A closer look at the floodwaters as it flows north into Pioneer Park. Click on the photo for a larger image.

Tumwater Valley Golf Course

Figure 5: A view of the floodwaters from the southern parking lot of the Tumwater Valley Golf Course. Click on the photo for a larger image.

Figure 6: As we ventured north, the floodwaters became increasingly deep and started to develop a strong current. The water was deepest on the road before the stop sign in the distance. Click on the photo for a larger image.

Figure 7: A car stranded in the floodwaters at Tumwater Valley Golf Course. Click on the photo for a larger image.

Tumwater Falls

Figure 8: A view of Tumwater Falls during flood stage. The river contained a high amount of sediment in the water. Click on the photo for a larger image.

 

Figure 9: A view of the fish ladder viewing grates, below Tumwater Falls. The floodwaters flowed over the top of the concrete wall. Click on the photo for a larger image.

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 Contacts

Stephen Slaughter
Geology & Earth Resources Division, Hazards Geologist
Washington State Department of Natural Resources
360-902-1498
Fax 360-902-1785
stephen.slaughter@dnr.wa.gov

 Files

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