Rating:
11 votes

Minneopa Creek Stone Arch Bridge

Photos 

South End Entrance

Entrance to south end of tunnel

Photo taken by Cody Camps

Enlarge

BH Photo #244379

Map 

Facts 

Overview
Stone Arch over Minneopa Creek on County Rd 69 & Union Pacific Railroad
Location
Blue Earth County, Minnesota
Status
Open
History
Road (Formerly rail) portion built 1879 ; Railroad portion built 1905
Railroads
- Chicago & North Western Railway (CNW)
- Chicago, St. Paul, Minneapolis & Omaha Railway (CMO)
- Union Pacific Railroad (UP)
Design
Stone Arch
About half way through the tunnel, it takes takes an approximately 45 degree turn to the northeast
Dimensions
Length of largest span: 18.0 ft.
Total length: 22.0 ft.
Deck width: 36.1 ft.
Approximate latitude, longitude
+44.15051, -94.08563   (decimal degrees)
44°09'02" N, 94°05'08" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/413180/4889162 (zone/easting/northing)
Quadrangle map:
Mankato West
Inventory numbers
MN 4128 (Minnesota bridge number)
BH 54831 (Bridgehunter.com ID)
Inspection (as of 11/1991)
Sufficiency rating: 40.9 (out of 100)
Average daily traffic (as of 1989)
320

Update Log 

  • April 5, 2015: New photos from John Marvig
  • September 10, 2013: Updated by Nathan Holth: This bridge is now doomed.
  • January 26, 2013: Updated by Luke Harden: Added build date for railroad portion and applicable categories
  • December 6, 2012: Updated by Luke Harden: Reverted build date to the featured on both the keystone and in the MN-NBI database.
  • December 6, 2012: Updated by John Marvig: Added information. When a highway and railroad share a bridge, it is most common practice that the railroad fully owns the bridge. UP track chart makes no note of county owning it.
  • December 6, 2012: Added by Cody Camps

Sources 

Comments 

Minneopa Creek Stone Arch Bridge
Posted April 5, 2015, by John Marvig (marvigj27 [at] gmail [dot] com)

Checked out the rehabilitation the other day. It appears the county and railroad invested money into making this arch able to last for a long time to come. A concrete floor, patch work on the lower walls and some ceiling stabilization have all helped preserve the structure. Because of the recent rehab, one is now able to walk through the arch with little to no effort. Congratulations to Blue Earth County and Union Pacific Railroad for making the right decision to preserve this historic artifact!

Minneopa Creek Stone Arch Bridge
Posted October 27, 2013, by Chris (doctorc1970 [at] hotmail [dot] com)

John - that's good news considering the alternative. Thanks!

Minneopa Creek Stone Arch Bridge
Posted October 27, 2013, by John Marvig (johnmarvig [at] chaska [dot] net)

Chris,

Blue Earth County apparently has this set for rehabilitation. A lot better than the alternative.

http://www.minnesotabids.com/bid-opportunities/2013/10/21/51...

It might be getting a new encasement though..

Minneopa Creek Stone Arch Bridge
Posted October 27, 2013, by Chris (doctorc1970 [at] hotmail [dot] com)

Just discovered this today (10/27/13) and the surveyor flags are in place. Such a shame that this is slated for destruction. It really doesn't look like much would be needed to reinforce it and I get the feeling that they will destroy most of the nice little valley just getting down to work on it. It would be wise just to leave it appears there is no danger of collapsing.

Minneopa Creek Stone Arch Bridge
Posted September 10, 2013, by Nathan Holth (form3 [at] historicbridges [dot] org)

The official reason for replacement is "The existing stone arch is deteriorating." Which is dumb, because deterioration does not imply replacement is required. Perhaps it could simply be repaired. The 5 year plan is on the county website. For your convenience I am attaching the two pages that reference the bridge.

Attachment #1 (application/pdf; 164,147 bytes)

Minneopa Creek Stone Arch Bridge
Posted September 10, 2013, by John Marvig (johnmarvig [at] chaska [dot] net)

Any particular reason they plan on removing it? Seems kinda stupid to me. Its in decent to excellent condition, and it is considered historic. I'll be contacting MNDOT and the Minnesota Historical Society to learn more and try to save it. Do you have a document Nathan?

Minneopa Creek Stone Arch Bridge
Posted September 10, 2013, by Nathan Holth (form3 [at] historicbridges [dot] org)

Blue Earth County plans to demolish this bridge according to their 5 year plan. Not sure if it it just the road portion of the whole works. I assume just the road portion. Replacement structure to be precast concrete culvert. How charming.

Minneopa Creek Stone Arch Bridge
Posted May 6, 2013, by AR

Hey, that shot of the south entrance is worth the crawl! Thanks, Cody.

Minneopa Creek Stone Arch Bridge
Posted January 26, 2013, by John Marvig (johnmarvig [at] chaska [dot] net)

Cody,

how did you get to the south end? It was a nasty crawl down to the north end. Even as an experienced bridgehunter, it was pretty bad...

Minneopa Creek Stone Arch Bridge
Posted December 6, 2012, by John Marvig (johnmarvig [at] chaska [dot] net)

Then perhaps the turn in the tunnel is the difference between the 1870's tunnel and the 1906 tunnel?

Minneopa Creek Stone Arch Bridge
Posted December 6, 2012, by Cody Camps

The keystone has a date of what appears to be 1879. Here's a zoomed in picture of it.

Minneopa Creek Stone Arch Bridge
Posted December 6, 2012, by John Marvig (johnmarvig [at] chaska [dot] net)

Looks like the typical C&NW cornerstone on the top part of the arch (1st picture) got knocked off...

Fortunately, the line here was relocated 1906, so that should give a definite date...

Minneopa Creek Arch
Posted December 6, 2012, by Luke Harden (lmharden [at] iastate [dot] edu)

Very nice looking stone arch.