US Bridges

S 566-TONGUE R RD over Bridge Creek

Good

Rosebud County, Montana · 4M SW Ashland · Structure no. S00566004+00001

Built
2004
21 years old
Condition
Good
inspected July 2024
Type
Culvert
Steel
Length
31 ft
2 main spans
Daily traffic
47
2023 count
Owner
County
County Highway Agency

About this bridge

S 566-TONGUE R RD over Bridge Creek is a steel culvert carrying S 566-TONGUE R RD over Bridge Creek in Rosebud County, Montana. It was built in 2004, so it is 21 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 47 vehicles a day, projected to reach 49 by 2043. The structure is 31 ft (9.5 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesS 566-TONGUE R RD
CrossesBridge Creek
Location4M SW Ashland
RouteCounty Highway 566
StateMontana
Coordinates45.54657, -106.29608
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length31 ft (9.5 m)
Longest span14 ft (4.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47 (2023)
Projected traffic49 by 2043
Trucks0%
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 S 566-TONGUE R RD over Bridge Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is S 566-TONGUE R RD over Bridge 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 S 566-TONGUE R RD over Bridge Creek carry?

About 47 vehicles per day (2023 count).

How long is S 566-TONGUE R RD over Bridge Creek?

The structure is 31 ft (9.5 m) long with a longest span of 14 ft (4.4 m).

Who owns S 566-TONGUE R RD over Bridge Creek?

It is owned by the County Highway Agency.