US Bridges

Csah 34 over Mud Lake Creek

Good

Freeborn County, Minnesota · 0.2 MI N of JCT Csah 13 · Structure no. 24550

Built
2012
13 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
500
2017 count
Owner
County
County Highway Agency

About this bridge

Csah 34 over Mud Lake Creek is a prestressed concrete stringer/multi-beam or girder carrying Csah 34 over Mud Lake Creek in Freeborn County, Minnesota. It was built in 2012, so it is 13 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 500 vehicles a day, projected to reach 500 by 2039. The structure is 60 ft (18.3 m) long and 35 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesCsah 34
CrossesMud Lake Creek
Location0.2 MI N of JCT Csah 13
RouteCounty Highway 34
Coordinates43.56758, -93.08936
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating36.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length60 ft (18.3 m)
Longest span58 ft (17.6 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2017)
Projected traffic500 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 34 over Mud Lake Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Csah 34 over Mud Lake Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does Csah 34 over Mud Lake Creek carry?

About 500 vehicles per day (2017 count).

How long is Csah 34 over Mud Lake Creek?

The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.6 m) and a deck 35 ft wide.

Who owns Csah 34 over Mud Lake Creek?

It is owned by the County Highway Agency.