US Bridges

T 46 over Snake River

Fair

Marshall County, Minnesota · 0.4 MI E of JCT Csah 17 · Structure no. 45J37

Built
2004
21 years old
Condition
Fair
inspected November 2022
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
25
2004 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 46 over Snake River is a concrete culvert carrying T 46 over Snake River in Marshall County, Minnesota. It was built in 2004, so it is 21 years old, younger 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 6 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 25 vehicles a day, projected to reach 25 by 2029. The structure is 31 ft (9.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesT 46
CrossesSnake River
Location0.4 MI E of JCT Csah 17
RouteCounty Highway 46
CountyMarshall County
StateMinnesota
Coordinates48.29676, -97.05629
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating75.6 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length31 ft (9.5 m)
Longest span14 ft (4.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2004)
Projected traffic25 by 2029
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$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T 46 over Snake River built?

It was built in 2004, making it 21 years old in 2025.

What condition is T 46 over Snake 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 November 2022.

How much traffic does T 46 over Snake River carry?

About 25 vehicles per day (2004 count).

How long is T 46 over Snake River?

The structure is 31 ft (9.5 m) long with a longest span of 14 ft (4.2 m).

Who owns T 46 over Snake River?

It is owned by the Town or Township Highway Agency.