US Bridges

T 377 over Mud Creek

FairPosted for load

Swift County, Minnesota · 2.0 MI NE of JCT TH12 · Structure no. L7187

Built
1958
67 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
63 ft
3 main spans
Daily traffic
12
1986 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 377 over Mud Creek is a wood or timber stringer/multi-beam or girder carrying T 377 over Mud Creek in Swift County, Minnesota. It was built in 1958, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 12 vehicles a day, projected to reach 12 by 2029. The structure is 63 ft (19.2 m) long and 22 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesT 377
CrossesMud Creek
Location2.0 MI NE of JCT TH12
RouteCounty Highway 377
Coordinates45.31041, -95.5108
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating21.8 US tons
Inventory rating13.9 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length63 ft (19.2 m)
Longest span38 ft (11.6 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12 (1986)
Projected traffic12 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 377 over Mud Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is T 377 over Mud Creek 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 377 over Mud Creek carry?

About 12 vehicles per day (1986 count).

How long is T 377 over Mud Creek?

The structure is 63 ft (19.2 m) long with a longest span of 38 ft (11.6 m) and a deck 22 ft wide.

Who owns T 377 over Mud Creek?

It is owned by the Town or Township Highway Agency.