US Bridges

Pa Cnty RD R1A over Shoshone River

Fair

Park County, Wyoming · 4 Mi. S.E. of Garland · Structure no. EHN

Built
1965
60 years old
Condition
Fair
inspected January 2024
Type
Channel Beam
Concrete
Length
100 ft
2 main spans
Daily traffic
119
2024 count
Owner
County
County Highway Agency

About this bridge

Pa Cnty RD R1A over Shoshone River is a concrete channel beam carrying Pa Cnty RD R1A over Shoshone River in Park County, Wyoming. It was built in 1965, so it is 60 years old, older 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 5 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 119 vehicles a day, roughly 13% of them trucks, projected to reach 167 by 2043. The structure is 100 ft (30.5 m) long and 25 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesPa Cnty RD R1A
CrossesShoshone River
Location4 Mi. S.E. of Garland
RouteCounty Highway 0R1
CountyPark County
StateWyoming
Coordinates44.73924, -108.59504
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span50 ft (15.2 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic119 (2024)
Projected traffic167 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$76,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa Cnty RD R1A over Shoshone River built?

It was built in 1965, making it 60 years old in 2025.

What condition is Pa Cnty RD R1A over Shoshone 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 January 2024.

How much traffic does Pa Cnty RD R1A over Shoshone River carry?

About 119 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is Pa Cnty RD R1A over Shoshone River?

The structure is 100 ft (30.5 m) long with a longest span of 50 ft (15.2 m) and a deck 25 ft wide.

Who owns Pa Cnty RD R1A over Shoshone River?

It is owned by the County Highway Agency.