Rating:
3 votes

Armstrong Gravel Pit Bridge

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Photos 

Overview

Photo taken by Jason Smith

Map 

Description 

The Armstrong Gravel Road Bridge is one of a few rare examples of truss bridges built by A.H. Austin and one of two left by the bridge builder that has a unique portal bracing with the star heel bracing. The other is the Murray Bridge in Humboldt County. When visiting the bridge in 1998, it was derelict with the roadway rotted away to a point where the lower chord could be seen. During the visit, the decking was replaced and the bridge appears to be privately owned.

Facts 

Overview
Derelict through truss bridge over East Fork Des Moines River northwest of Armstrong
Location
Emmet County, Iowa
Status
Privately owned
Future prospects
Bridge is privately owned. New deck was added since 1998
History
Built 1899 by A.H. Austin in Kossuth County; relocated here in the 1940s to serve a gravel pit; abandoned 1971
Builder
- A.H. Austin of Webster City, Iowa
Design
Pin-connected, 6-panel Pratt through truss
Approximate latitude, longitude
+43.41156, -94.51239   (decimal degrees)
43°24'42" N, 94°30'45" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/377552/4807629 (zone/easting/northing)
Quadrangle map:
Dolliver
Inventory number
BH 13446 (Bridgehunter.com ID)

Categories 

19th Century (6,114)
6-panel truss (540)
A.H. Austin (6)
Built 1899 (302)
Built during 1890s (2,441)
Closed (2,409)
Des Moines River (217)
Emmet County, Iowa (18)
Iowa (5,722)
Owned privately (1,251)
Pin-connected (3,022)
Pratt through truss (4,541)
Pratt truss (7,922)
Relocated (604)
Through truss (12,791)
Truss (29,272)
Wooden deck (5,841)

Update Log 

  • March 29, 2015: Updated by Dave King: Added category "Wooden deck"
  • September 12, 2011: Updated by Jason Smith: Bridge is now privately owned; new decking added recently.
  • October 10, 2005: Posted photos and info from Jason Smith

Sources 

  • Jason Smith - flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com