US Bridges

S 336-OLLIE RD over Fork of Beaver Creek

Good

Fallon County, Montana · 20M NE Baker · Structure no. 000000000006686

Built
2016
9 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
106 ft
1 main span
Daily traffic
31
2023 count
Owner
County
County Highway Agency

About this bridge

S 336-OLLIE RD over Fork of Beaver Creek is a prestressed concrete stringer/multi-beam or girder carrying S 336-OLLIE RD over Fork of 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 31 vehicles a day, roughly 10% of them trucks, projected to reach 33 by 2043. The structure is 106 ft (32.3 m) long and 31 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesS 336-OLLIE RD
CrossesFork of Beaver Creek
Location20M NE Baker
RouteCounty Highway 336
StateMontana
Coordinates46.56906, -104.11633
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.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating37.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length106 ft (32.3 m)
Longest span103 ft (31.4 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31 (2023)
Projected traffic33 by 2043
Trucks10%
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 Fork of Beaver Creek built?

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

What condition is S 336-OLLIE RD over Fork of 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 Fork of Beaver Creek carry?

About 31 vehicles per day (2023 count), of which roughly 10% are trucks.

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

The structure is 106 ft (32.3 m) long with a longest span of 103 ft (31.4 m) and a deck 31 ft wide.

Who owns S 336-OLLIE RD over Fork of Beaver Creek?

It is owned by the County Highway Agency.