US Bridges

Bozeman Creek Road over Bozeman Creek

Good

Gallatin County, Montana · S. of Bozeman · Structure no. 011106000000062

Built
1965
60 years old, rebuilt 2014
Condition
Good
inspected September 2022
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
31 ft
1 main span
Daily traffic
40
Owner
Federal
U.S. Forest Service

About this bridge

Bozeman Creek Road over Bozeman Creek is a wood or timber stringer/multi-beam or girder carrying Bozeman Creek Road over Bozeman Creek in Gallatin County, Montana. It was built in 1965 and reconstructed in 2014, so it is 60 years old, older than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 40 vehicles a day, projected to reach 60 by 2045. The structure is 31 ft (9.3 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

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CarriesBozeman Creek Road
CrossesBozeman Creek
LocationS. of Bozeman
RouteFederal Lands Road 979
CountyGallatin County
StateMontana
Coordinates45.55511, -110.97147
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no 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 alignment6: Equal to present minimum criteria
Operating rating38.9 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length31 ft (9.3 m)
Longest span29 ft (8.8 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (—)
Projected traffic60 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 Bozeman Creek Road over Bozeman Creek built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2014.

What condition is Bozeman Creek Road over Bozeman Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2022.

How much traffic does Bozeman Creek Road over Bozeman Creek carry?

About 40 vehicles per day (latest count).

How long is Bozeman Creek Road over Bozeman Creek?

The structure is 31 ft (9.3 m) long with a longest span of 29 ft (8.8 m) and a deck 16 ft wide.

Who owns Bozeman Creek Road over Bozeman Creek?

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