US Bridges

Lodge Creek RD over Drainage

Fair

Blaine County, Montana · 1M NE Chinook · Structure no. S00325000+04001

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

About this bridge

Lodge Creek RD over Drainage is a wood or timber stringer/multi-beam or girder carrying Lodge Creek RD over Drainage 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 77 ft (23.6 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesLodge Creek RD
CrossesDrainage
Location1M NE Chinook
RouteCounty Highway 3600
StateMontana
Coordinates48.59985, -109.2154
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating26.8 US tons

Structure

MaterialWood or Timber
DeckCorrugated steel
Main spans4
Design loadH 15
Structure length77 ft (23.6 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 built?

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

What condition is Lodge Creek RD over Drainage 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 carry?

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

How long is Lodge Creek RD over Drainage?

The structure is 77 ft (23.6 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?

It is owned by the County Highway Agency.