US Bridges

S Frontage RD over Canyon Creek

Fair

Yellowstone County, Montana · W Billings · Structure no. S00429001+08501

Built
1959
66 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
156 ft
3 main spans
Daily traffic
4,412
2023 count
Owner
State
State Highway Agency

About this bridge

S Frontage RD over Canyon Creek is a prestressed concrete stringer/multi-beam or girder carrying S Frontage RD over Canyon Creek in Yellowstone County, Montana. It was built in 1959, so it is 66 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 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 4,412 vehicles a day, roughly 4% of them trucks, projected to reach 4,964 by 2043. The structure is 156 ft (47.5 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesS Frontage RD
CrossesCanyon Creek
LocationW Billings
RouteCity Street 1011
CountyYellowstone County
StateMontana
Coordinates45.72648, -108.61494
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length156 ft (47.5 m)
Longest span52 ft (15.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,412 (2023)
Projected traffic4,964 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$428,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S Frontage RD over Canyon Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is S Frontage RD over Canyon 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 October 2023.

How much traffic does S Frontage RD over Canyon Creek carry?

About 4,412 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is S Frontage RD over Canyon Creek?

The structure is 156 ft (47.5 m) long with a longest span of 52 ft (15.8 m) and a deck 31 ft wide.

Who owns S Frontage RD over Canyon Creek?

It is owned by the State Highway Agency.