US Bridges

T 39 over Marsh Creek (cd #91-91A)

Fair

Mahnomen County, Minnesota · 0.9 MI W of JCT TH 59 · Structure no. 95386

Built
1985
40 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
25
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 39 over Marsh Creek (cd #91-91A) is a concrete culvert carrying T 39 over Marsh Creek (cd #91-91A) in Mahnomen County, Minnesota. It was built in 1985, so it is 40 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 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 18 by 2042. The structure is 28 ft (8.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesT 39
CrossesMarsh Creek (cd #91-91A)
Location0.9 MI W of JCT TH 59
RouteCounty Highway 39
CountyMahnomen County
StateMinnesota
Coordinates47.42675, -95.99731
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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length28 ft (8.4 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic18 by 2042
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 byCounty 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 39 over Marsh Creek (cd #91-91A) built?

It was built in 1985, making it 40 years old in 2025.

What condition is T 39 over Marsh Creek (cd #91-91A) 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 September 2024.

How much traffic does T 39 over Marsh Creek (cd #91-91A) carry?

About 25 vehicles per day (2022 count).

How long is T 39 over Marsh Creek (cd #91-91A)?

The structure is 28 ft (8.4 m) long with a longest span of 11 ft (3.5 m).

Who owns T 39 over Marsh Creek (cd #91-91A)?

It is owned by the Town or Township Highway Agency and maintained by the County Highway Agency.