US Bridges

Bench Blvd over Alkali Creek

Good

Yellowstone County, Montana · Billings-Bench Blvd · Structure no. U01036002+09701

Built
2011
14 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
178 ft
1 main span
Daily traffic
12,314
2023 count
Owner
County
County Highway Agency

About this bridge

Bench Blvd over Alkali Creek is a steel stringer/multi-beam or girder carrying Bench Blvd over Alkali Creek in Yellowstone County, Montana. It was built in 2011, so it is 14 years old, younger 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 12,314 vehicles a day, projected to reach 14,469 by 2043. The structure is 178 ft (54.3 m) long and 55 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesBench Blvd
CrossesAlkali Creek
LocationBillings-Bench Blvd
RouteCity Street 1036
CountyYellowstone County
StateMontana
Coordinates45.80308, -108.47328
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31 US tons
Inventory rating24 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length178 ft (54.3 m)
Longest span175 ft (53.3 m)
Deck width55 ft (16.9 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,314 (2023)
Projected traffic14,469 by 2043
Trucks0%
Lanes on structure3
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 Bench Blvd over Alkali Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is Bench Blvd over Alkali 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 December 2023.

How much traffic does Bench Blvd over Alkali Creek carry?

About 12,314 vehicles per day (2023 count).

How long is Bench Blvd over Alkali Creek?

The structure is 178 ft (54.3 m) long with a longest span of 175 ft (53.3 m) and a deck 55 ft wide.

Who owns Bench Blvd over Alkali Creek?

It is owned by the County Highway Agency.