US Bridges

T 36 over Willow Creek

Good

Blue Earth County, Minnesota · 0.5 MI E of JCT CR 146 · Structure no. 07543

Built
1977
48 years old
Condition
Good
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
93 ft
2 main spans
Daily traffic
40
1969 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 36 over Willow Creek is a prestressed concrete tee beam carrying T 36 over Willow Creek in Blue Earth County, Minnesota. It was built in 1977, so it is 48 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 40 vehicles a day, projected to reach 40 by 2029. The structure is 93 ft (28.3 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 36
CrossesWillow Creek
Location0.5 MI E of JCT CR 146
RouteCounty Highway 36
Coordinates43.9059, -94.25841
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating74.2 US tons
Inventory rating40 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length93 ft (28.3 m)
Longest span46 ft (13.9 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (1969)
Projected traffic40 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 T 36 over Willow Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is T 36 over 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 T 36 over Willow Creek carry?

About 40 vehicles per day (1969 count).

How long is T 36 over Willow Creek?

The structure is 93 ft (28.3 m) long with a longest span of 46 ft (13.9 m) and a deck 32 ft wide.

Who owns T 36 over Willow Creek?

It is owned by the Town or Township Highway Agency.