3 votes

Gold Mine Bridge


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


Parker through truss bridge over Minnesota River on CR 17
Delhi, Redwood County, Minnesota, and Renville County, Minnesota
Open to traffic
Built 1903
- L.H. Johnson
Pin-connected, 9-panel Parker through truss
Length of largest span: 170.0 ft.
Total length: 191.0 ft.
Deck width: 15.4 ft.
Vertical clearance above deck: 14.0 ft.
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:
Average daily traffic (as of 2015)
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



Minnesota River Bridge
Posted August 28, 2014, by Joe Fishbein (jmf [at] visi [dot] com)

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:


Minnesota River Bridge
Posted August 28, 2014, by Fmiser (fmiser [at] gmail [dot] com)

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.

Minnesota River Bridge
Posted August 27, 2014, by Joe Fishbein (jmf [at] visi [dot] com)

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.

Harvest Avenue Bridge
Posted October 15, 2009, by Matthew Lohry (mmlohry [at] comcast [dot] net)

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.

Harvest Avenue Bridge
Posted October 14, 2009, by Matthew Lohry (mmlohry [at] comcast [dot] net)

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.