US Bridges

T 70 over Le Sueur Creek

Good

Le Sueur County, Minnesota · 1.2 MI SW of JCT CR 153 · Structure no. 40512

Built
1981
44 years old
Condition
Good
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
97 ft
3 main spans
Daily traffic
12
1971 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 70 over Le Sueur Creek is a prestressed concrete tee beam carrying T 70 over Le Sueur 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 12 vehicles a day, projected to reach 12 by 2029. The structure is 97 ft (29.6 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesT 70
CrossesLe Sueur Creek
Location1.2 MI SW of JCT CR 153
RouteCounty Highway 70
Coordinates44.40796, -93.87499
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 2024
Inspection intervalevery 12 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 alignment8: Equal to present desirable criteria
Operating rating108.9 US tons
Inventory rating65.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length97 ft (29.6 m)
Longest span32 ft (9.8 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12 (1971)
Projected traffic12 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$1,000 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was T 70 over Le Sueur Creek built?

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

What condition is T 70 over Le Sueur 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 T 70 over Le Sueur Creek carry?

About 12 vehicles per day (1971 count).

How long is T 70 over Le Sueur Creek?

The structure is 97 ft (29.6 m) long with a longest span of 32 ft (9.8 m) and a deck 32 ft wide.

Who owns T 70 over Le Sueur Creek?

It is owned by the Town or Township Highway Agency.