US Bridges

Teigen Loop over Mcdonald Creek 032

FairPosted for load

Petroleum County, Montana · S Teigen · Structure no. L35107000+04501

Built
2012
13 years old
Condition
Fair
inspected June 2024
Type
Truss - Thru
Steel
Length
71 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Teigen Loop over Mcdonald Creek 032 is a steel truss - thru carrying Teigen Loop over Mcdonald Creek 032 in Petroleum County, Montana. It was built in 2012, so it is 13 years old, younger than the Montana average of 47 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 71 ft (21.6 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesTeigen Loop
CrossesMcdonald Creek 032
LocationS Teigen
RouteCounty Highway 35107
CountyPetroleum County
StateMontana
Coordinates47.03095, -108.59348
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment8: Equal to present desirable criteria
Operating rating14 US tons
Inventory rating10 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length71 ft (21.6 m)
Longest span70 ft (21.2 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty 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 Teigen Loop over Mcdonald Creek 032 built?

It was built in 2012, making it 13 years old in 2025.

What condition is Teigen Loop over Mcdonald Creek 032 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 June 2024.

How much traffic does Teigen Loop over Mcdonald Creek 032 carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Teigen Loop over Mcdonald Creek 032?

The structure is 71 ft (21.6 m) long with a longest span of 70 ft (21.2 m) and a deck 18 ft wide.

Who owns Teigen Loop over Mcdonald Creek 032?

It is owned by the County Highway Agency.