US Bridges

Stone Creek RD over East Bench Canal 003

FairPosted for load

Beaverhead County, Montana · 6M NE Dillon · Structure no. L01223002+00001

Built
1962
63 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
64 ft
2 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Stone Creek RD over East Bench Canal 003 is a wood or timber stringer/multi-beam or girder carrying Stone Creek RD over East Bench Canal 003 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 64 ft (19.5 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesStone Creek RD
CrossesEast Bench Canal 003
Location6M NE Dillon
RouteCounty Highway 1223
StateMontana
Coordinates45.27644, -112.50993
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22 US tons
Inventory rating12 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length64 ft (19.5 m)
Longest span31 ft (9.4 m)
Deck width30 ft (9.2 m)
Roadway width29 ft (8.9 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 closed9.9 mi (16 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 Stone Creek RD over East Bench Canal 003 built?

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

What condition is Stone Creek RD over East Bench Canal 003 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 October 2024.

How much traffic does Stone Creek RD over East Bench Canal 003 carry?

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

How long is Stone Creek RD over East Bench Canal 003?

The structure is 64 ft (19.5 m) long with a longest span of 31 ft (9.4 m) and a deck 30 ft wide.

Who owns Stone Creek RD over East Bench Canal 003?

It is owned by the County Highway Agency.