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Site ID: 93

File Name

Description

Looking east across upstream face of Galvin Road Overflow Bridge for Chehalis River near Centralia, WA on 2/9/1996.

Looking east at Pier 10 (foreground) and Pier 9 (the pier that failed) of Galvin Road Overflow Bridge, 2/9/1996.

Looking east along downstream side of Galvin Road overflow bridge into scour hole during dewatering.

Looking downstream (north) to the Galvin Road overflow bridge.

Looking east at failed pier #9 following the February 1996 flood.

Looking upstream at left abutment and area of failure from downstream of bridge.

Looking downstream at piers 8, 9 (the pier that failed) and 10 following the February 1996 flood.

Looking west toward sag in bridge deck (from bridge deck) due to failure of pier #9 during the February 1996 flood.

Sketch of flow patterns and HEC-2 model sections through Galvin Road overflow bridge during February 1996 flood.

Plan and profile plots of scour hole location at Galvin Road Overflow Bridge for the Chehalis River, Centralia, WA.

Location and topographic map of Galvin Road Overflow bridge site.

Aerial photo of the Gavin Road Overflow bridge site taken in 1990

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