US Bridges

Pa Cnty RD R12B over Garland Canal

Fair

Park County, Wyoming · 1.5 Mi. N.E. of Ralston · Structure no. EFD

Built
1982
43 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
64 ft
1 main span
Daily traffic
162
2024 count
Owner
County
County Highway Agency

About this bridge

Pa Cnty RD R12B over Garland Canal is a prestressed concrete tee beam carrying Pa Cnty RD R12B over Garland Canal in Park County, Wyoming. It was built in 1982, so it is 43 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 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 162 vehicles a day, roughly 4% of them trucks, projected to reach 227 by 2043. The structure is 64 ft (19.5 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesPa Cnty RD R12B
CrossesGarland Canal
Location1.5 Mi. N.E. of Ralston
RouteCounty Highway 0R12
CountyPark County
StateWyoming
Coordinates44.73258, -108.82069
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length64 ft (19.5 m)
Longest span60 ft (18.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic162 (2024)
Projected traffic227 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$49,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa Cnty RD R12B over Garland Canal built?

It was built in 1982, making it 43 years old in 2025.

What condition is Pa Cnty RD R12B over Garland Canal 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 February 2024.

How much traffic does Pa Cnty RD R12B over Garland Canal carry?

About 162 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Pa Cnty RD R12B over Garland Canal?

The structure is 64 ft (19.5 m) long with a longest span of 60 ft (18.3 m) and a deck 26 ft wide.

Who owns Pa Cnty RD R12B over Garland Canal?

It is owned by the County Highway Agency.