Rating:
2 votes

Sturgeon River Bridge

Photos 

Offset portal view from the south

Photo taken by Matthew Lohry in June 2010

Enlarge

BH Photo #168715

Map 

Description 

Out of all of the truss bridges remaining in St. Louis County, this one is probably in the worst shape overall. Pack rust and section loss abound on the superstructure, and the deck is showing severe spalling. The bridge was struck very hard on one end, damaging the end post severely. It is a shame that this bridge was not maintained, as it, with its very long approach spans, is one of the more asethetically pleasing Warren ponies in the area. Like all of the others, this bridge lacks V-lacing and lattice, and features built up members with battens, including under the upper chord and on the lower chord. The deck is cast-in-place concrete overlaid with asphalt, which is featured on both the main span and the approaches. It's ironic that this bridge is on a road called the Range Line Road, because CR 912, just south of Cook, also is called the Range Line Road and had an identical bridge crossing the Rice River (replaced 1991). The only difference is that that bridge had a timber deck.

Facts 

Overview
Pony truss bridge over Sturgeon River on CR 107
Location
St. Louis County, Minnesota
Status
Replaced by new bridge
Future prospects
Closed with no plans to remove or replace
History
Built 1922; replaced 2016
Builder
- Bethlehem Steel Co. of Bethlehem, Pennsylvania (Steel Manufacturer)
Design
Riveted Warren pony truss with verticals
Dimensions
Length of largest span: 80.1 ft.
Total length: 129.9 ft.
Deck width: 17.1 ft.
Approximate latitude, longitude
+47.79889, -92.95500   (decimal degrees)
47°47'56" N, 92°57'18" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/503369/5293948 (zone/easting/northing)
Quadrangle map:
Meadow Brook
Average daily traffic (as of 2008)
20
Inventory numbers
MN 7761 (Minnesota bridge number)
BH 20629 (Bridgehunter.com ID)
Inspection report (as of April 2011)
Overall condition: Poor
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Poor (4 out of 9)
Deck condition rating: Critical (2 out of 9)
Sufficiency rating: 30 (out of 100)
View more at BridgeReports.com

Update Log 

  • February 13, 2014: Updated by Matt Lohry: Updated status--this bridge is closed, but is not currently threatened with demolition
  • June 28, 2010: Updated by Matthew Lohry: Added description and photos

Sources 

  • Matt Lohry

Comments 

Sturgeon River Bridge
Posted September 21, 2017, by Joe Fishbein (jmfmando [at] gmail [dot] com)

The last time we inspected this bridge, in 2011, there were some very large through holes in the concrete deck, 2-3 feet in diameter. It was closed with barricades by the county, but people kept driving around them and across the bridge. Newer, more robust barricades were installed later, which seemed to be effective.

Sturgeon River Bridge
Posted September 19, 2017, by Matt Lohry

Ish. I hate it. They could have at least used a replacement like the Embarrass River Bridge or the West Swan River bridge that we've just seen in the forum...this is just an eyesore. As Tony has pointed out, it would sure have been nice to keep the historic bridge in place, but the county's dead-in-the-water maintenance plan did not do it any favors--it was so deteriorated that there was no feasible way to save it.

Sturgeon River Bridge
Posted September 18, 2017, by Joe Fishbein (jmfmando [at] gmail [dot] com)

This bridge is gone, replaced in 2016 by a single span prestressed concrete beam bridge (69591).

Sturgeon River Bridge
Posted August 9, 2017, by Joe Fishbein (jmfmando [at] gmail [dot] com)

With the current demolition and replacement of the Embarrass River bridge (88773), this may be the last surviving pony truss in St. Louis County. To my knowledge it is still extant but closed. We will be up there in September for other bridge inspections and will verify the status of this one.

Sturgeon River Bridge
Posted September 1, 2015, by Joe Fishbein (jmf [at] visi [dot] com)

Bridge remains closed. St. Louis County added more robust barricades this spring due to people driving around the old ones and crossing the bridge.

Sturgeon River Bridge
Posted May 5, 2015, by Matt Lohry

The St. Louis County website now has a replacement project underway to replace this bridge, which comes as no surprise...the road was used regularly by locals until its closure, with detours either adding many miles or taking drivers down poorly maintained roads. Rust in peace, another St. Louis truss goes to the dumpster.

Sturgeon River Bridge
Posted January 17, 2013, by Todd Sarazine (tmscls [at] live [dot] com)

I live near this bridge and used to travel across it daily for nearly 20 years. You are correct in your statement of "no maintenance on this bridge". I have not seen any maintenance in the nearly 20 years of my travels, yet 10 years ago the county spent tens of thousands of dollars if not more to repair a wash out area on the road four hundred feet south of the bridge. The bridge is now closed. The road is closed to through traffic With no repair plans as the county stated "We do not want to throw good money at a bad idea".