US Bridges

Billingsley RD over Vandalia South Canal 074

FairPosted for load

Valley County, Montana · 6M W Glasgow · Structure no. L53509002+05001

Built
1997
28 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
47 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Billingsley RD over Vandalia South Canal 074 is a steel stringer/multi-beam or girder carrying Billingsley RD over Vandalia South Canal 074 in Valley County, Montana. It was built in 1997, so it is 28 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 6 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 47 ft (14.2 m) long and 26 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesBillingsley RD
CrossesVandalia South Canal 074
Location6M W Glasgow
RouteCounty Highway 53406
StateMontana
Coordinates48.21936, -106.75373
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating19 US tons
Inventory rating11 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length47 ft (14.2 m)
Longest span43 ft (13 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.4 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 closed11.2 mi (18 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$108,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Billingsley RD over Vandalia South Canal 074 built?

It was built in 1997, making it 28 years old in 2025.

What condition is Billingsley RD over Vandalia South Canal 074 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 November 2024.

How much traffic does Billingsley RD over Vandalia South Canal 074 carry?

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

How long is Billingsley RD over Vandalia South Canal 074?

The structure is 47 ft (14.2 m) long with a longest span of 43 ft (13 m) and a deck 26 ft wide.

Who owns Billingsley RD over Vandalia South Canal 074?

It is owned by the County Highway Agency.