US Bridges

S 543 over Vail Creek

Poor

Garfield County, Montana · 2M N Jordan · Structure no. S00543002+07001

Built
1976
49 years old
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
48 ft
3 main spans
Daily traffic
77
2023 count
Owner
County
County Highway Agency

About this bridge

S 543 over Vail Creek is a wood or timber stringer/multi-beam or girder carrying S 543 over Vail Creek in Garfield County, Montana. It was built in 1976, so it is 49 years old, older than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 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.

It carries about 77 vehicles a day, roughly 3% of them trucks, projected to reach 81 by 2043. The structure is 48 ft (14.6 m) long and 22 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

CarriesS 543
CrossesVail Creek
Location2M N Jordan
RouteCounty Highway 543
StateMontana
Coordinates47.36144, -106.91536
Functional classRural Major Collector

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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26 US tons
Inventory rating19 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length48 ft (14.6 m)
Longest span16 ft (4.9 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic77 (2023)
Projected traffic81 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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 S 543 over Vail Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is S 543 over Vail 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 September 2024.

How much traffic does S 543 over Vail Creek carry?

About 77 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is S 543 over Vail Creek?

The structure is 48 ft (14.6 m) long with a longest span of 16 ft (4.9 m) and a deck 22 ft wide.

Who owns S 543 over Vail Creek?

It is owned by the County Highway Agency.