Rating:
1 vote

Willapa Hills Trail - Chehalis River Bridge (Claquato)

Lewis County, Washington

Photos 

East Approach

Photo taken by Mike Garland in March 2015

Enlarge

BH Photo #324668

Map 

Description 

This is a two span bridge that has been converted into part of the Willapa Hills Trail. Truss spans clearly relocated to this location. Through truss dates to ca. 1895, pony truss dates to Ca. 1910. Information from NPRHA.org Online Collection

Facts 

Overview
Pratt through truss bridge over Chehalis River on Willapa Hills Trail
Location
Lewis County, Washington
Status
Open to pedestrians only
History
Through Truss erected 1919, Pony truss added 1928
Railroad
- Northern Pacific Railroad (NP)
Design
12 Spans Trestle
1-150' pin connected Pratt Through Truss
1-120' "Lattice Girder" (riveted Warren Pony Truss)
13 Spans Trestle
Dimensions
Length of largest span: 150.0 ft.
Total length: 300.0 ft.
Deck width: 12.0 ft.
Vertical clearance above deck: 30.0 ft.
Approximate latitude, longitude
+46.63851, -123.01906   (decimal degrees)
46°38'19" N, 123°01'09" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/498541/5164994 (zone/easting/northing)
Quadrangle map:
Adna
Inventory number
BH 67618 (Bridgehunter.com ID)

Categories 

Beam (15,729)
Built 1919 (522)
Built during 1910s (9,647)
Chehalis River (15)
Lewis County, Washington (61)
Northern Pacific Railroad (387)
Open to pedestrians (4,220)
Owned by county (20,789)
Pin-connected (3,902)
Pony truss (16,189)
Pratt through truss (5,400)
Pratt truss (9,310)
 Rail-to-trail (1,544)
Railroad (15,439)
Span length 125-175 feet (4,227)
Through truss (15,089)
Timber stringer (4,021)
Total length 250-500 feet (5,237)
Truss (32,817)
Warren pony truss (3,360)
Warren pony truss with alternating verticals (678)
Warren truss (6,568)
Washington (1,314)

Update Log 

  • January 29, 2020: Updated by John Marvig: Added information from NP bridge records
  • November 6, 2016: Updated by Christopher Finigan: Added category "Pin-connected"
  • May 16, 2015: Added by Mike Garland

Sources 

  • Mike Garland - Rapier342 [at] comcast [dot] net
  • John Marvig - marvigj27 [at] gmail [dot] com
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Comments 

Willapa Hills Trail - Chehalis River Bridge (Claquato)
Posted January 29, 2020, by John Marvig (marvigj27 [at] gmail [dot] com)

All three truss bridges over the Chehalis River on this trail are clearly relocated. I will work on finding more information on where they came from and when they were fabricated. This one looks like it has a ca. 1895 through truss span and a ca. 1910 pony truss.