US Bridges

CR Cnty RD 164 over Little Missouri River

Fair

Crook County, Wyoming · 7 MI N. of Oshoto · Structure no. FUZ

Built
1990
35 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
110 ft
3 main spans
Daily traffic
23
2024 count
Owner
County
County Highway Agency

About this bridge

CR Cnty RD 164 over Little Missouri River is a steel continuous stringer/multi-beam or girder carrying CR Cnty RD 164 over Little Missouri River in Crook County, Wyoming. It was built in 1990, so it is 35 years old, younger than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 23 vehicles a day, roughly 4% of them trucks, projected to reach 32 by 2043. The structure is 110 ft (33.5 m) long and 29 ft wide. If it were closed, the detour would be 77.1 mi (124 km).

Location

Open in Google Maps
CarriesCR Cnty RD 164
CrossesLittle Missouri River
Location7 MI N. of Oshoto
RouteCounty Highway 164
CountyCrook County
StateWyoming
Coordinates44.68914, -104.91898
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span42 ft (12.8 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23 (2024)
Projected traffic32 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed77.1 mi (124 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$7,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR Cnty RD 164 over Little Missouri River built?

It was built in 1990, making it 35 years old in 2025.

What condition is CR Cnty RD 164 over Little Missouri River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does CR Cnty RD 164 over Little Missouri River carry?

About 23 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is CR Cnty RD 164 over Little Missouri River?

The structure is 110 ft (33.5 m) long with a longest span of 42 ft (12.8 m) and a deck 29 ft wide.

Who owns CR Cnty RD 164 over Little Missouri River?

It is owned by the County Highway Agency.