US Bridges

Csah 40 over Trib of Willow Creek

Good

Blue Earth County, Minnesota · 0.3 MI S of JCT TH 30 · Structure no. 07595

Built
2022
3 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
65
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 40 over Trib of Willow Creek is a prestressed concrete stringer/multi-beam or girder carrying Csah 40 over Trib of Willow Creek in Blue Earth County, Minnesota. It was built in 2022, so it is 3 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 65 vehicles a day, projected to reach 233 by 2042. The structure is 54 ft (16.5 m) long and 35 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCsah 40
CrossesTrib of Willow Creek
Location0.3 MI S of JCT TH 30
RouteCounty Highway 40
Coordinates43.89037, -94.26887
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating41.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length54 ft (16.5 m)
Longest span51 ft (15.5 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2022)
Projected traffic233 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 40 over Trib of Willow Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is Csah 40 over Trib of Willow 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 2023.

How much traffic does Csah 40 over Trib of Willow Creek carry?

About 65 vehicles per day (2022 count).

How long is Csah 40 over Trib of Willow Creek?

The structure is 54 ft (16.5 m) long with a longest span of 51 ft (15.5 m) and a deck 35 ft wide.

Who owns Csah 40 over Trib of Willow Creek?

It is owned by the County Highway Agency.