US Bridges

Nye Rd-S 419 over West Rosebud Creek

Fair

Stillwater County, Montana · Fishtail · Structure no. S00419003+06001

Built
1991
34 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete Continuous
Length
79 ft
3 main spans
Daily traffic
1,061
2023 count
Owner
State
State Highway Agency

About this bridge

Nye Rd-S 419 over West Rosebud Creek is a concrete continuous slab carrying Nye Rd-S 419 over West Rosebud Creek in Stillwater County, Montana. It was built in 1991, so it is 34 years old, younger 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 1,061 vehicles a day, roughly 4% of them trucks, projected to reach 1,114 by 2043. The structure is 79 ft (24.1 m) long and 38 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

Location

Open in Google Maps
CarriesNye Rd-S 419
CrossesWest Rosebud Creek
LocationFishtail
RouteState Highway 419
CountyStillwater County
StateMontana
Coordinates45.45336, -109.50751
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length79 ft (24.1 m)
Longest span30 ft (9.1 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,061 (2023)
Projected traffic1,114 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nye Rd-S 419 over West Rosebud Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Nye Rd-S 419 over West Rosebud 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 January 2024.

How much traffic does Nye Rd-S 419 over West Rosebud Creek carry?

About 1,061 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Nye Rd-S 419 over West Rosebud Creek?

The structure is 79 ft (24.1 m) long with a longest span of 30 ft (9.1 m) and a deck 38 ft wide.

Who owns Nye Rd-S 419 over West Rosebud Creek?

It is owned by the State Highway Agency.