US Bridges

S 336-OLLIE RD over Beaver Creek

Good

Fallon County, Montana · 21M NE Baker · Structure no. 000000000006687

Built
2016
9 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
108 ft
1 main span
Daily traffic
28
2023 count
Owner
County
County Highway Agency

About this bridge

S 336-OLLIE RD over Beaver Creek is a prestressed concrete stringer/multi-beam or girder carrying S 336-OLLIE RD over Beaver Creek in Fallon 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 28 vehicles a day, roughly 11% of them trucks, projected to reach 29 by 2043. The structure is 108 ft (32.9 m) long and 26 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesS 336-OLLIE RD
CrossesBeaver Creek
Location21M NE Baker
RouteCounty Highway 336
StateMontana
Coordinates46.57205, -104.08237
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating43 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length108 ft (32.9 m)
Longest span105 ft (32 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28 (2023)
Projected traffic29 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 S 336-OLLIE RD over Beaver Creek built?

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

What condition is S 336-OLLIE RD 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 October 2024.

How much traffic does S 336-OLLIE RD over Beaver Creek carry?

About 28 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is S 336-OLLIE RD over Beaver Creek?

The structure is 108 ft (32.9 m) long with a longest span of 105 ft (32 m) and a deck 26 ft wide.

Who owns S 336-OLLIE RD over Beaver Creek?

It is owned by the County Highway Agency.