US Bridges

Old Stage RD over Canyon Ditch

FairPosted for load

Beaverhead County, Montana · E Barretts Int · Structure no. L01243000+06001

Built
1982
43 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
298
2023 count
Owner
County
County Highway Agency

About this bridge

Old Stage RD over Canyon Ditch is a steel stringer/multi-beam or girder carrying Old Stage RD over Canyon Ditch in Beaverhead County, Montana. It was built in 1982, so it is 43 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 298 vehicles a day, roughly 3% of them trucks, projected to reach 319 by 2043. The structure is 51 ft (15.5 m) long and 20 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesOld Stage RD
CrossesCanyon Ditch
LocationE Barretts Int
RouteCounty Highway 1243
CountyBeaverhead County
StateMontana
Coordinates45.13094, -112.735
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating5 US tons
Inventory rating5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckSteel plate
Main spans1
Design loadUnknown
Structure length51 ft (15.5 m)
Longest span28 ft (8.5 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic298 (2023)
Projected traffic319 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$177,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Stage RD over Canyon Ditch built?

It was built in 1982, making it 43 years old in 2025.

What condition is Old Stage RD over Canyon Ditch 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 January 2024.

How much traffic does Old Stage RD over Canyon Ditch carry?

About 298 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Old Stage RD over Canyon Ditch?

The structure is 51 ft (15.5 m) long with a longest span of 28 ft (8.5 m) and a deck 20 ft wide.

Who owns Old Stage RD over Canyon Ditch?

It is owned by the County Highway Agency.