US Bridges

P 86-BRIDGER DR over Bridger Creek

Fair

Gallatin County, Montana · 2M NE Bozeman · Structure no. P00086003+01311

Built
2005
20 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
85 ft
3 main spans
Daily traffic
8,443
2023 count
Owner
State
State Highway Agency

About this bridge

P 86-BRIDGER DR over Bridger Creek is a concrete continuous slab carrying P 86-BRIDGER DR over Bridger Creek in Gallatin County, Montana. It was built in 2005, so it is 20 years old, younger 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.

It carries about 8,443 vehicles a day, roughly 2% of them trucks, projected to reach 9,287 by 2043. The structure is 85 ft (25.8 m) long and 41 ft wide. If it were closed, the detour would be 80.2 mi (129 km).

Location

Open in Google Maps
CarriesP 86-BRIDGER DR
CrossesBridger Creek
Location2M NE Bozeman
RouteState Highway 86
CountyGallatin County
StateMontana
Coordinates45.70613, -110.99871
Functional classRural Minor Arterial

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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating32 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length85 ft (25.8 m)
Longest span33 ft (10 m)
Deck width41 ft (12.6 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,443 (2023)
Projected traffic9,287 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed80.2 mi (129 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 P 86-BRIDGER DR over Bridger Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is P 86-BRIDGER DR over Bridger Creek 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 November 2023.

How much traffic does P 86-BRIDGER DR over Bridger Creek carry?

About 8,443 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is P 86-BRIDGER DR over Bridger Creek?

The structure is 85 ft (25.8 m) long with a longest span of 33 ft (10 m) and a deck 41 ft wide.

Who owns P 86-BRIDGER DR over Bridger Creek?

It is owned by the State Highway Agency.