US Bridges

Indian Creek RD over Shields River 027

FairPosted for load

Park County, Montana · 2M S Wilsall · Structure no. L34061000+04001

Built
1920
105 years old
Condition
Fair
inspected June 2024
Type
Truss - Thru
Steel
Length
77 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Indian Creek RD over Shields River 027 is a steel truss - thru carrying Indian Creek RD over Shields River 027 in Park County, Montana. It was built in 1920, so it is 105 years old, older 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 77 ft (23.5 m) long and 16 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesIndian Creek RD
CrossesShields River 027
Location2M S Wilsall
RouteCounty Highway 34061
StateMontana
Coordinates45.95748, -110.63522
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating11 US tons
Inventory rating6 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length77 ft (23.5 m)
Longest span75 ft (22.9 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$201,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Indian Creek RD over Shields River 027 built?

It was built in 1920, making it 105 years old in 2025.

What condition is Indian Creek RD over Shields River 027 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 Indian Creek RD over Shields River 027 carry?

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

How long is Indian Creek RD over Shields River 027?

The structure is 77 ft (23.5 m) long with a longest span of 75 ft (22.9 m) and a deck 16 ft wide.

Who owns Indian Creek RD over Shields River 027?

It is owned by the County Highway Agency.