US Bridges

Woodbine Campgrd over Stillwater River

Fair

Stillwater County, Montana · 1-LANE Road · Structure no. 010802000000157

Built
1962
63 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete Continuous
Length
121 ft
3 main spans
Daily traffic
99
Owner
Federal
U.S. Forest Service

About this bridge

Woodbine Campgrd over Stillwater River is a concrete continuous tee beam carrying Woodbine Campgrd over Stillwater River in Stillwater 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 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 99 vehicles a day, projected to reach 148 by 2045. The structure is 121 ft (36.9 m) long and 18 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

Open in Google Maps
CarriesWoodbine Campgrd
CrossesStillwater River
Location1-LANE Road
RouteFederal Lands Road 2400A
CountyStillwater County
StateMontana
Coordinates45.35371, -109.89837
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.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27.9 US tons
Inventory rating21.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length121 ft (36.9 m)
Longest span75 ft (22.9 m)
Deck width18 ft (5.4 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic99 (—)
Projected traffic148 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Woodbine Campgrd over Stillwater River built?

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

What condition is Woodbine Campgrd over Stillwater River 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 September 2023.

How much traffic does Woodbine Campgrd over Stillwater River carry?

About 99 vehicles per day (latest count).

How long is Woodbine Campgrd over Stillwater River?

The structure is 121 ft (36.9 m) long with a longest span of 75 ft (22.9 m) and a deck 18 ft wide.

Who owns Woodbine Campgrd over Stillwater River?

It is owned by the U.S. Forest Service.