US Bridges

S7-2NDAVE NE over Beaver Creek

Good

Wibaux County, Montana · NE Edge of Wibuax · Structure no. 000000202305708

Built
2023
2 years old
Condition
Good
inspected December 2023
Type
Tee Beam
Prestressed Concrete
Length
283 ft
3 main spans
Daily traffic
1,066
2023 count
Owner
State
State Highway Agency

About this bridge

S7-2NDAVE NE over Beaver Creek is a prestressed concrete tee beam carrying S7-2NDAVE NE over Beaver Creek in Wibaux County, Montana. It was built in 2023, so it is 2 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 1,066 vehicles a day, roughly 5% of them trucks, projected to reach 1,119 by 2043. The structure is 283 ft (86.3 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesS7-2NDAVE NE
CrossesBeaver Creek
LocationNE Edge of Wibuax
RouteState Highway 7
CountyWibaux County
StateMontana
Coordinates46.99003, -104.18356
Functional classRural Minor Arterial

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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating57.5 US tons
Inventory rating36.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length283 ft (86.3 m)
Longest span105 ft (31.9 m)
Deck width41 ft (12.4 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,066 (2023)
Projected traffic1,119 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 S7-2NDAVE NE over Beaver Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is S7-2NDAVE NE over Beaver 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 December 2023.

How much traffic does S7-2NDAVE NE over Beaver Creek carry?

About 1,066 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S7-2NDAVE NE over Beaver Creek?

The structure is 283 ft (86.3 m) long with a longest span of 105 ft (31.9 m) and a deck 41 ft wide.

Who owns S7-2NDAVE NE over Beaver Creek?

It is owned by the State Highway Agency.