US Bridges

T 304 over Wing River

GoodPosted for load

Todd County, Minnesota · 0.7 MI E of JCT TH 71 · Structure no. 77514

Built
1983
42 years old
Condition
Good
inspected September 2023
Type
Slab
Wood or Timber
Length
62 ft
3 main spans
Daily traffic
45
1979 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 304 over Wing River is a wood or timber slab carrying T 304 over Wing River in Todd County, Minnesota. It was built in 1983, so it is 42 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. Its operating status is: posted for load restriction.

It carries about 45 vehicles a day, projected to reach 45 by 2029. The structure is 62 ft (18.9 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 304
CrossesWing River
Location0.7 MI E of JCT TH 71
RouteCounty Highway 304
Coordinates46.34017, -95.09803
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating33.7 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span26 ft (7.9 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (1979)
Projected traffic45 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 304 over Wing River built?

It was built in 1983, making it 42 years old in 2025.

What condition is T 304 over Wing 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 September 2023.

How much traffic does T 304 over Wing River carry?

About 45 vehicles per day (1979 count).

How long is T 304 over Wing River?

The structure is 62 ft (18.9 m) long with a longest span of 26 ft (7.9 m) and a deck 28 ft wide.

Who owns T 304 over Wing River?

It is owned by the Town or Township Highway Agency.