US Bridges

T 306 over S Br Two Rivers

Good

Kittson County, Minnesota · 1.3 MI N of JCT Csah 7 · Structure no. 35519

Built
1979
46 years old
Condition
Good
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
106 ft
3 main spans
Daily traffic
36
1991 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 306 over S Br Two Rivers is a prestressed concrete tee beam carrying T 306 over S Br Two Rivers in Kittson County, Minnesota. It was built in 1979, so it is 46 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 36 vehicles a day, projected to reach 36 by 2029. The structure is 106 ft (32.3 m) long and 32 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesT 306
CrossesS Br Two Rivers
Location1.3 MI N of JCT Csah 7
RouteCounty Highway 306
Coordinates48.66186, -96.40958
Functional classRural Minor Collector

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 inspectionOctober 2024
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 alignment8: Equal to present desirable criteria
Operating rating58.3 US tons
Inventory rating34.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length106 ft (32.3 m)
Longest span35 ft (10.8 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36 (1991)
Projected traffic36 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 306 over S Br Two Rivers built?

It was built in 1979, making it 46 years old in 2025.

What condition is T 306 over S Br Two Rivers 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 306 over S Br Two Rivers carry?

About 36 vehicles per day (1991 count).

How long is T 306 over S Br Two Rivers?

The structure is 106 ft (32.3 m) long with a longest span of 35 ft (10.8 m) and a deck 32 ft wide.

Who owns T 306 over S Br Two Rivers?

It is owned by the Town or Township Highway Agency.