US Bridges

T 781 over Little Willow River

Good

Pine County, Minnesota · 0.4 MI E of JCT CR 155 · Structure no. 58538

Built
1999
26 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
91 ft
1 main span
Daily traffic
20
1998 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 781 over Little Willow River is a prestressed concrete stringer/multi-beam or girder carrying T 781 over Little Willow River in Pine County, Minnesota. It was built in 1999, so it is 26 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 20 vehicles a day, projected to reach 20 by 2029. The structure is 91 ft (27.7 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesT 781
CrossesLittle Willow River
Location0.4 MI E of JCT CR 155
RouteCounty Highway 781
Coordinates46.31733, -92.69184
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.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating87.1 US tons
Inventory rating50.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length91 ft (27.7 m)
Longest span82 ft (25 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (1998)
Projected traffic20 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 781 over Little Willow River built?

It was built in 1999, making it 26 years old in 2025.

What condition is T 781 over Little Willow 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 October 2024.

How much traffic does T 781 over Little Willow River carry?

About 20 vehicles per day (1998 count).

How long is T 781 over Little Willow River?

The structure is 91 ft (27.7 m) long with a longest span of 82 ft (25 m) and a deck 31 ft wide.

Who owns T 781 over Little Willow River?

It is owned by the Town or Township Highway Agency.