US Bridges

Bridger Creek Road over Bridger Creek

Good

Sweet Grass County, Montana · 9M SE Greycliff · Structure no. 000000202204525

Built
2022
3 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
65 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Bridger Creek Road over Bridger Creek is a steel stringer/multi-beam or girder carrying Bridger Creek Road over Bridger Creek in Sweet Grass County, Montana. It was built in 2022, so it is 3 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 65 ft (19.8 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesBridger Creek Road
CrossesBridger Creek
Location9M SE Greycliff
RouteCounty Highway 49104
StateMontana
Coordinates45.69137, -109.71572
Functional classRural Minor Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating48 US tons
Inventory rating37 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length65 ft (19.8 m)
Longest span59 ft (18 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
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 Bridger Creek Road over Bridger Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is Bridger Creek Road over Bridger 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 July 2024.

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

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Bridger Creek Road over Bridger Creek?

The structure is 65 ft (19.8 m) long with a longest span of 59 ft (18 m) and a deck 24 ft wide.

Who owns Bridger Creek Road over Bridger Creek?

It is owned by the County Highway Agency.