US Bridges

T 156 over Minnesota River

Good

Lac qui Parle County, Minnesota · 1.5 MI N of JCT Csah 38 · Structure no. 37537

Built
1991
34 years old
Condition
Good
inspected August 2023
Type
Tee Beam
Prestressed Concrete
Length
115 ft
3 main spans
Daily traffic
54
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 156 over Minnesota River is a prestressed concrete tee beam carrying T 156 over Minnesota River in Lac qui Parle County, Minnesota. It was built in 1991, so it is 34 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 54 vehicles a day, projected to reach 39 by 2042. The structure is 115 ft (35.1 m) long and 38 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesT 156
CrossesMinnesota River
Location1.5 MI N of JCT Csah 38
RouteCounty Highway 156
Coordinates45.20365, -96.19637
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating67.5 US tons
Inventory rating40.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length115 ft (35.1 m)
Longest span38 ft (11.7 m)
Deck width38 ft (11.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54 (2022)
Projected traffic39 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 156 over Minnesota River built?

It was built in 1991, making it 34 years old in 2025.

What condition is T 156 over Minnesota River 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 August 2023.

How much traffic does T 156 over Minnesota River carry?

About 54 vehicles per day (2022 count).

How long is T 156 over Minnesota River?

The structure is 115 ft (35.1 m) long with a longest span of 38 ft (11.7 m) and a deck 38 ft wide.

Who owns T 156 over Minnesota River?

It is owned by the Town or Township Highway Agency.