US Bridges

E Kagy Blvd over Bozeman Creek

Fair

Gallatin County, Montana · Bozeman-E Kagy Blvd · Structure no. U01212001+08001

Built
1984
41 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
57 ft
1 main span
Daily traffic
10,757
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

E Kagy Blvd over Bozeman Creek is a prestressed concrete stringer/multi-beam or girder carrying E Kagy Blvd over Bozeman Creek in Gallatin County, Montana. It was built in 1984, so it is 41 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 10,757 vehicles a day, projected to reach 11,402 by 2043. The structure is 57 ft (17.4 m) long and 86 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesE Kagy Blvd
CrossesBozeman Creek
LocationBozeman-E Kagy Blvd
RouteCity Street 1212
CountyGallatin County
StateMontana
Coordinates45.65707, -111.02848
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span55 ft (16.8 m)
Deck width86 ft (26.2 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,757 (2023)
Projected traffic11,402 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 E Kagy Blvd over Bozeman Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is E Kagy Blvd over Bozeman 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 December 2024.

How much traffic does E Kagy Blvd over Bozeman Creek carry?

About 10,757 vehicles per day (2023 count).

How long is E Kagy Blvd over Bozeman Creek?

The structure is 57 ft (17.4 m) long with a longest span of 55 ft (16.8 m) and a deck 86 ft wide.

Who owns E Kagy Blvd over Bozeman Creek?

It is owned by the City or Municipal Highway Agency.