US Bridges

Dry Creek RD over Dry Creek

Good

Gallatin County, Montana · 13M N Belgrade · Structure no. S00290013+03001

Built
2012
13 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
204
2023 count
Owner
County
County Highway Agency

About this bridge

Dry Creek RD over Dry Creek is a steel stringer/multi-beam or girder carrying Dry Creek RD over Dry Creek in Gallatin County, Montana. It was built in 2012, so it is 13 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 204 vehicles a day, roughly 2% of them trucks, projected to reach 214 by 2043. The structure is 40 ft (12.2 m) long and 25 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesDry Creek RD
CrossesDry Creek
Location13M N Belgrade
RouteCounty Highway 290
CountyGallatin County
StateMontana
Coordinates45.93886, -111.18233
Functional classRural Major 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 inspectionJanuary 2025
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.6 US tons
Inventory rating34.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span39 ft (11.9 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic204 (2023)
Projected traffic214 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$95,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Dry Creek RD over Dry Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Dry Creek RD over Dry 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 January 2025.

How much traffic does Dry Creek RD over Dry Creek carry?

About 204 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Dry Creek RD over Dry Creek?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 25 ft wide.

Who owns Dry Creek RD over Dry Creek?

It is owned by the County Highway Agency.