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The Bridges of King County Through the Lens of T. P. Blum: 1931 - 1934
Bridge_no_1051A__July_5_1934__TPBlum

Duwamish Drawbridge at Riverton, replacement truss span: Duwamish River, July 5, 1934. (Series 474, Bridge Number 1051A. Section 7, Township 23N, Range 4E.)

Truss Bridges

A truss bridge is a bridge structure that is supported by trusses. Each truss is composed of connected elements forming triangular sections, and may be stressed from tension and/or compression. Early examples were made of wood and were found in the form of the King and Queen Posts. Modern examples use metal in their construction, and their forms are often named for their designers, such as Pratt, Howe, etc.

Bridge_no_1051A__June_6_1932__TPBlum

Duwamish Drawbridge at Riverton: Duwamish River, June 6, 1932. (Series 474, Bridge Number 1051A. Section 7, Township 23N, Range 4E.)

Bridge_no_1051A__June_6_1932__TPBlum_2

Duwamish Drawbridge at Riverton: Duwamish River, June 6, 1932. (Series 474, Bridge Number 1051A. Section 7, Township 23N, Range 4E.)

Bridge_no_949B___April_3__1934__TPBlum

Jones Road, 3 miles SE of Renton on south side of Cedar River, April 3, 1934. (Series 474, Bridge Number 949B. Section 23, Township 23N, Range 5E.)

Bridge_no_3025__June_28_1932__TPBlum_2

Whitney Bridge, 218th Ave SE, .25 miles S of SE Green Valle Road, E of Auburn, June 28, 1932. (Series 474, Bridge Number 3025. Section 28, Township 21N, Range 6E.)

Bridge_no_3075__July_6_1932__TPBlum

Landsburg Bridge, SE 253rd St and 276th Ave SE, Landsburg: Cedar River, July 6, 1932. (Series 474, Bridge Number 3075. Section 19, Township 22N, Range 7E.)

Bridge_no_877A__July_7_1932__TPBlum

Carr (Cedar Grove) Bridge: Cedar River, July 7, 1932. (Series 474, Bridge Number 877A. Section 34, Township 23N, Range 6E.)

Bridge_no_1726A__July_24_1933__TPBlum

Meadowbrook Bridge, 5 miles E of Snoqualmie: Snoqualmie River July 24, 1932 Series 474, Bridge Number 1726A. Section 32, Township 24N, Range 8E.)

Bridge_no_122I__July_25_1932__TPBlum

2.5 miles E of Snoqualmie on 428th Ave SE (N Fork Road): N Fork Snoqualmie River, July 25, 1932. (Series 474, Bridge Number 122I. Section 34, Township 24N, Range 8E.)

Bridge_no_1638A__April_3_1934__TPBlum_2

Maple Valley Bridge, 1 mile NW of Maple Valley: Cedar River, April 3, 1934. (Series 474, Bridge Number 1638A. Section 4, Township 22N, Range 6E.)

TTY Relay 711

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