US Bridges

Bbp over Yellowstone River

GoodClosed to traffic

Yellowstone County, Montana · 1M NW Lockwood · Structure no. 000000201908003

Built
2022
3 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,859 ft
9 main spans
Daily traffic
100
2025 count
Owner
State
State Highway Agency

About this bridge

Bbp over Yellowstone River is a steel continuous stringer/multi-beam or girder carrying Bbp over Yellowstone River in Yellowstone 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. Its operating status is: closed to all traffic.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 1,859 ft (566.6 m) long and 76 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesBbp
CrossesYellowstone River
Location1M NW Lockwood
RouteState Highway 0
StateMontana
Coordinates45.8464, -108.41795
Functional classUrban Local

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 protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating35.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadHL 93
Structure length1,859 ft (566.6 m)
Longest span255 ft (77.7 m)
Deck width76 ft (23.3 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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 Bbp over Yellowstone River built?

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

What condition is Bbp over Yellowstone River 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 May 2024.

How much traffic does Bbp over Yellowstone River carry?

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

How long is Bbp over Yellowstone River?

The structure is 1,859 ft (566.6 m) long with a longest span of 255 ft (77.7 m) and a deck 76 ft wide.

Who owns Bbp over Yellowstone River?

It is owned by the State Highway Agency.