US Bridges

T 259 over Swan River

Good

Morrison County, Minnesota · 0.3 MI S of JCT Csah 12 · Structure no. 49556

Built
2017
8 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
87 ft
1 main span
Daily traffic
164
2015 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 259 over Swan River is a prestressed concrete stringer/multi-beam or girder carrying T 259 over Swan River in Morrison County, Minnesota. It was built in 2017, so it is 8 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 164 vehicles a day, projected to reach 230 by 2035. The structure is 87 ft (26.5 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 259
CrossesSwan River
Location0.3 MI S of JCT Csah 12
RouteCounty Highway 259
Coordinates45.9305, -94.43089
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
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.7 US tons
Inventory rating47.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length87 ft (26.5 m)
Longest span85 ft (25.8 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic164 (2015)
Projected traffic230 by 2035
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T 259 over Swan River built?

It was built in 2017, making it 8 years old in 2025.

What condition is T 259 over Swan 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 November 2023.

How much traffic does T 259 over Swan River carry?

About 164 vehicles per day (2015 count).

How long is T 259 over Swan River?

The structure is 87 ft (26.5 m) long with a longest span of 85 ft (25.8 m) and a deck 35 ft wide.

Who owns T 259 over Swan River?

It is owned by the Town or Township Highway Agency.