US Bridges

T 106 over Straight River

Fair

Steele County, Minnesota · 0.1 MI W of JCT CSAH1 · Structure no. 74502

Built
1961
64 years old
Condition
Fair
inspected October 2024
Type
Slab
Prestressed Concrete
Length
73 ft
2 main spans
Daily traffic
40
2018 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 106 over Straight River is a prestressed concrete slab carrying T 106 over Straight River in Steele County, Minnesota. It was built in 1961, so it is 64 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 40 vehicles a day, projected to reach 40 by 2035. The structure is 73 ft (22.3 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesT 106
CrossesStraight River
Location0.1 MI W of JCT CSAH1
RouteCounty Highway 106
CountySteele County
StateMinnesota
Coordinates44.12416, -93.22904
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating107.3 US tons
Inventory rating61.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadH 20
Structure length73 ft (22.3 m)
Longest span35 ft (10.7 m)
Deck width29 ft (8.8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2018)
Projected traffic40 by 2035
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 106 over Straight River built?

It was built in 1961, making it 64 years old in 2025.

What condition is T 106 over Straight River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does T 106 over Straight River carry?

About 40 vehicles per day (2018 count).

How long is T 106 over Straight River?

The structure is 73 ft (22.3 m) long with a longest span of 35 ft (10.7 m) and a deck 29 ft wide.

Who owns T 106 over Straight River?

It is owned by the Town or Township Highway Agency.