US Bridges

Lodge Creek RD over Drainage-Stockpass

FairPosted for load

Blaine County, Montana · 1M NE Chinook · Structure no. S00325000+03001

Built
1952
73 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
39 ft
2 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Lodge Creek RD over Drainage-Stockpass is a wood or timber stringer/multi-beam or girder carrying Lodge Creek RD over Drainage-Stockpass in Blaine County, Montana. It was built in 1952, so it is 73 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 39 ft (12 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesLodge Creek RD
CrossesDrainage-Stockpass
Location1M NE Chinook
RouteCounty Highway 3600
StateMontana
Coordinates48.59772, -109.21547
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 alignment8: Equal to present desirable criteria
Operating rating32 US tons
Inventory rating23 US tons

Structure

MaterialWood or Timber
DeckCorrugated steel
Main spans2
Design loadH 15
Structure length39 ft (12 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (8 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 closed123.7 mi (199 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 Lodge Creek RD over Drainage-Stockpass built?

It was built in 1952, making it 73 years old in 2025.

What condition is Lodge Creek RD over Drainage-Stockpass 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 Lodge Creek RD over Drainage-Stockpass carry?

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

How long is Lodge Creek RD over Drainage-Stockpass?

The structure is 39 ft (12 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Lodge Creek RD over Drainage-Stockpass?

It is owned by the County Highway Agency.