Rating:
23174
{80}%
1 vote
Silver Bridge
Photos
Silver Bridge
view from the south
Photo taken by David Jones in October 2017
Enlarge
BH Photo #405794
Description
This bridge was rehabilitated/restored again in 2015. Enclosed are a few photos taken during June of 2015 while the rehabilitation/restoration was in progress.
Facts
- Overview
- Through truss bridge over Big Hole River on CR 017
- Location
- Silver Bow County, Montana, and Beaverhead County, Montana
- Status
- Open to traffic
- History
- Built 1914; rehabilitated 1947
- Design
- Polygonal Warren through truss
- Dimensions
-
Length of largest span: 154.2 ft.
Total length: 230.0 ft.
Deck width: 15.7 ft.
Vertical clearance above deck: 12.2 ft.
- Also called
- Big Hole River Bridge
Divide Bridge
Pumphouse Road Bridge
- Approximate latitude, longitude
- +45.75968, -112.80155 (decimal degrees)
45°45'35" N, 112°48'06" W (degrees°minutes'seconds")
- Approximate UTM coordinates
- 12/359899/5068925 (zone/easting/northing)
- Quadrangle map:
- Dewey
- Average daily traffic (as of 2003)
- 100
- Inventory number
- BH 23174 (Bridgehunter.com ID)
- Inspection report (as of April 2018)
- Overall condition: Fair
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Good (7 out of 9)
Deck condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 58.2 (out of 100)
View more at BridgeReports.com
Update Log
- October 13, 2017: New photos from David Jones
- March 27, 2012: New Street View added by Craig Philpott
- April 20, 2010: Updated by Nathan Holth: Added GPS and info.
Jason... first off rehabilitation isn't a "bad word" its still preservation... but just a very different form of preservation than restoration, so I strongly believe using the right word is critical. People need to understand what the benefit is to "restoration", and what's unique about restoration-focused solutions such as those offered by Workin' Bridges and Bach Steel. They need to understand they are getting a more true-to-form end-product.
As for this bridge, I am not sure of the exact scope of work but I think its a safe bet we aren't looking at restoration of the through truss span, more of a rehabilitation. Use of bolts instead of rivets, etc. What I am 100% certain of however is we have demolition and replacement of the historic riveted pony truss span and replacement with modern pre-fab welded truss. Google Streetview clearly illustrates the original pony truss span.
As for the bedrock, I have no idea where you read that their was a connection between bedrock and the need to replace the pony truss span. I see no mention of that connection in the article. Bedrock and soils are things that typically affect substructure work not superstructure work.