US Bridges

Csah 41 over Shanaska Creek

Good

Le Sueur County, Minnesota · 0.3 MI W of JCT TH 22 · Structure no. 40515

Built
1981
44 years old
Condition
Good
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
63 ft
1 main span
Daily traffic
339
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 41 over Shanaska Creek is a prestressed concrete tee beam carrying Csah 41 over Shanaska Creek in Le Sueur County, Minnesota. It was built in 1981, so it is 44 years old, older 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 339 vehicles a day, projected to reach 385 by 2041. The structure is 63 ft (19.1 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCsah 41
CrossesShanaska Creek
Location0.3 MI W of JCT TH 22
RouteCounty Highway 41
Coordinates44.28927, -93.96286
Functional classUrban 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 protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.7 US tons
Inventory rating43.2 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length63 ft (19.1 m)
Longest span60 ft (18.3 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic339 (2021)
Projected traffic385 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$1,000 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 41 over Shanaska Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Csah 41 over Shanaska 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 October 2024.

How much traffic does Csah 41 over Shanaska Creek carry?

About 339 vehicles per day (2021 count).

How long is Csah 41 over Shanaska Creek?

The structure is 63 ft (19.1 m) long with a longest span of 60 ft (18.3 m) and a deck 40 ft wide.

Who owns Csah 41 over Shanaska Creek?

It is owned by the County Highway Agency.