US Bridges

T 155 over Cottonwood River

Good

Redwood County, Minnesota · 1.4 MI N of JCT Csah 4 · Structure no. 64576

Built
2006
19 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
75 ft
1 main span
Daily traffic
49
2006 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 155 over Cottonwood River is a concrete stringer/multi-beam or girder carrying T 155 over Cottonwood River in Redwood County, Minnesota. It was built in 2006, so it is 19 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 49 vehicles a day, projected to reach 49 by 2029. The structure is 75 ft (23 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 155
CrossesCottonwood River
Location1.4 MI N of JCT Csah 4
RouteCounty Highway 155
Coordinates44.3463, -95.57419
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.4 US tons
Inventory rating48.4 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length75 ft (23 m)
Longest span74 ft (22.5 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49 (2006)
Projected traffic49 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 155 over Cottonwood River built?

It was built in 2006, making it 19 years old in 2025.

What condition is T 155 over Cottonwood 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 2024.

How much traffic does T 155 over Cottonwood River carry?

About 49 vehicles per day (2006 count).

How long is T 155 over Cottonwood River?

The structure is 75 ft (23 m) long with a longest span of 74 ft (22.5 m) and a deck 31 ft wide.

Who owns T 155 over Cottonwood River?

It is owned by the Town or Township Highway Agency.