Gold Mine Bridge
Photos
Looking through to north
Looking over to Renville County side. Redwood County road 17 turns into Renville County road 21 at bridge.
Photo taken by David Erickson in November 2008
BH Photo #127314
Facts
- Overview
- Parker through truss bridge over Minnesota River on CR 17
- Location
- Delhi, Redwood County, Minnesota, and Renville County, Minnesota
- Status
- Open to traffic
- History
- Built 1903
- Builder
- - L.H. Johnson
- Design
- Pin-connected, 9-panel Parker through truss
- Dimensions
-
Length of largest span: 170.0 ft.
Total length: 191.0 ft.
Deck width: 15.4 ft.
Vertical clearance above deck: 14.0 ft.
- Recognition
- Eligible for the National Register of Historic Places
- Also called
- Minnesota River Bridge
Delhi Bridge - Approximate latitude, longitude
- +44.61972, -95.17778 (decimal degrees)
44°37'11" N, 95°10'40" W (degrees°minutes'seconds") - Approximate UTM coordinates
- 15/327225/4943014 (zone/easting/northing)
- Quadrangle map:
- Delhi
- Average daily traffic (as of 2015)
- 510
- Inventory numbers
- MN 89850 (Minnesota bridge number)
BH 20568 (Bridgehunter.com ID) - Inspection report (as of August 2018)
- Overall condition: Poor
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Poor (4 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 68 (out of 100)
View more at BridgeReports.com
Update Log
- August 6, 2019: Updated by Jason Smith: Updated information on the bridge
- May 31, 2017: Updated by Christopher Finigan: Added category "Pin-connected"
- March 2, 2012: Updated by Luke Harden: Added link
- November 9, 2008: New photos from David Erickson
- October 10, 2005: Posted photos from Jason Smith
Sources
- Jason Smith - flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com
- David Erickson
- Image
- Luke
- Historic Bridges - Gold Mine Bridge (Bridge 89850) - MnDOT historic bridge preservation resources and contacts.
Comments
Joe, I think it's pretty cool that we (the Bridgehunter.com community) have a bridge inspector contributing! Thanks for your post and updates.
I would be mighty interested in details of the inspection process, techniques, and other technical information about bridge inspections.
Inspected this bridge 8/20/14. The superstructure NBI rating has been upgraded from 3 to 4 (Poor Condition). Previously, one of the pins in the lower chord was showing a crack under ultrasonic testing. This pin has been replaced, resulting in a higher rating and an increase in the load posting to 10 tons.
After closer observation, it appears that this is the County Rd. 17 bridge over the Minnesota River, as the superstructures and the lattice handrails in both sets of photos are identical. Both sets of photos also show the bridge resting on concrete-filled cylindrical steel caissons.
I believe these pictures were posted in error--the current Harvest Avenue bridge is a conventional steel stringer bridge that has been in place since 1966.
This page's URL is http://bridgehunter.com/mn/redwood/89850/
My group inspects fracture-critical bridges across the state. Most of the inspection is visual; we are required to get within "arms reach" of all critical components. We can also use magnetic-particle and ultrasonic testing to look for cracks, section loss and other problems. We measure bearing movement, gusset plate bowing and substructure movement or tipping.
One of the people in my group put together a presentation about fracture-critical bridge inspection a few years ago. It can be found here:
http://4nsi.com/assets/files/Bill-Nelson-Bridge-Inspection.p...