US Bridges

White LN over East Bench Canal 102

FairPosted for load

Beaverhead County, Montana · 2M SE Dillon · Structure no. L01238001+00001

Built
1962
63 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
56 ft
2 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

White LN over East Bench Canal 102 is a wood or timber stringer/multi-beam or girder carrying White LN over East Bench Canal 102 in Beaverhead County, Montana. It was built in 1962, so it is 63 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 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 56 ft (17.1 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesWhite LN
CrossesEast Bench Canal 102
Location2M SE Dillon
RouteCounty Highway 1238
StateMontana
Coordinates45.19935, -112.61614
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42 US tons
Inventory rating30 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length56 ft (17.1 m)
Longest span28 ft (8.5 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.7 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 closed3.1 mi (5 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 White LN over East Bench Canal 102 built?

It was built in 1962, making it 63 years old in 2025.

What condition is White LN over East Bench Canal 102 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 December 2023.

How much traffic does White LN over East Bench Canal 102 carry?

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

How long is White LN over East Bench Canal 102?

The structure is 56 ft (17.1 m) long with a longest span of 28 ft (8.5 m) and a deck 26 ft wide.

Who owns White LN over East Bench Canal 102?

It is owned by the County Highway Agency.