US Bridges

T 149 over Five Mile Creek

PoorPosted for load

Big Stone County, Minnesota · 1.4 MI SW of JCT TH 7 · Structure no. L8877

Built
1968
57 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
20 ft
1 main span
Daily traffic
10
1973 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 149 over Five Mile Creek is a steel stringer/multi-beam or girder carrying T 149 over Five Mile Creek in Big Stone County, Minnesota. It was built in 1968, so it is 57 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, projected to reach 10 by 2029. The structure is 20 ft (6.2 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 149
CrossesFive Mile Creek
Location1.4 MI SW of JCT TH 7
RouteCounty Highway 149
Coordinates45.2101, -96.13316
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating25.7 US tons
Inventory rating17.9 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length20 ft (6.2 m)
Longest span19 ft (5.9 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (1973)
Projected traffic10 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$24 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was T 149 over Five Mile Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is T 149 over Five Mile Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does T 149 over Five Mile Creek carry?

About 10 vehicles per day (1973 count).

How long is T 149 over Five Mile Creek?

The structure is 20 ft (6.2 m) long with a longest span of 19 ft (5.9 m) and a deck 20 ft wide.

Who owns T 149 over Five Mile Creek?

It is owned by the Town or Township Highway Agency.