US Bridges

Irrs 234 over Beaver Creek

Good

Hill County, Montana · 13M S Havre · Structure no. S00234013+02541

Built
2003
22 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete Continuous
Length
81 ft
3 main spans
Daily traffic
566
2023 count
Owner
State
State Highway Agency

About this bridge

Irrs 234 over Beaver Creek is a concrete continuous slab carrying Irrs 234 over Beaver Creek in Hill County, Montana. It was built in 2003, so it is 22 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 566 vehicles a day, roughly 1% of them trucks, projected to reach 594 by 2043. The structure is 81 ft (24.7 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesIrrs 234
CrossesBeaver Creek
Location13M S Havre
RouteState Highway 234
StateMontana
Coordinates48.35511, -109.66915
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating37.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length81 ft (24.7 m)
Longest span30 ft (9.1 m)
Deck width32 ft (9.7 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic566 (2023)
Projected traffic594 by 2043
Trucks1%
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

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 Irrs 234 over Beaver Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is Irrs 234 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 March 2024.

How much traffic does Irrs 234 over Beaver Creek carry?

About 566 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Irrs 234 over Beaver Creek?

The structure is 81 ft (24.7 m) long with a longest span of 30 ft (9.1 m) and a deck 32 ft wide.

Who owns Irrs 234 over Beaver Creek?

It is owned by the State Highway Agency.