Rating:
1 vote
Silver Bridge
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.
Sources
- Nathan Holth
- Craig Philpott - craigphilpott63 [at] gmail [dot] com
- David Jones - david2jpix [at] yahoo [dot] com
Comments
Silver Bridge
Actually Nathan, the bridge has been restored. They just replaced the decking and did the repainting, while at the same time, placed the crossing onto newly rebuilt piers. What's different with the bridge is a pony truss approach span, which was needed because of the bed rock they encountered while trying to put the bridge back in its place. In either case, I see this as restoration with a twist. ;-) Link: http://mtstandard.com/news/local/silver-bridge-to-span-big-h...
Big Hole River Bridge
Nope, sorry, the engineer is Nathan Haddick not Nathan Holth. And the Contractor isn't Bach Steel... so I am thinking REHAB is a better word than RESTORE.
Big Hole River Bridge
Being totally restored!:
http://mtstandard.com/news/local/work-to-begin-on-historic-s...
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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.