US Bridges

S 69 over Animal Crossing

Good

Jefferson County, Montana · 5M S Boulder · Structure no. 000000000007045

Built
2016
9 years old
Condition
Good
inspected April 2024
Type
Slab
Prestressed Concrete
Length
39 ft
1 main span
Daily traffic
913
2023 count
Owner
State
State Highway Agency

About this bridge

S 69 over Animal Crossing is a prestressed concrete slab carrying S 69 over Animal Crossing in Jefferson County, Montana. It was built in 2016, so it is 9 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 913 vehicles a day, roughly 13% of them trucks, projected to reach 968 by 2043. The structure is 39 ft (11.8 m) long and 43 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesS 69
CrossesAnimal Crossing
Location5M S Boulder
RouteState Highway 69
StateMontana
Coordinates46.18163, -112.05501
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating43 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length39 ft (11.8 m)
Longest span34 ft (10.5 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic913 (2023)
Projected traffic968 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed8.1 mi (13 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S 69 over Animal Crossing built?

It was built in 2016, making it 9 years old in 2025.

What condition is S 69 over Animal Crossing 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 April 2024.

How much traffic does S 69 over Animal Crossing carry?

About 913 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is S 69 over Animal Crossing?

The structure is 39 ft (11.8 m) long with a longest span of 34 ft (10.5 m) and a deck 43 ft wide.

Who owns S 69 over Animal Crossing?

It is owned by the State Highway Agency.