US Bridges

Pa Cnty RD L11C over Garland Canal

Good

Park County, Wyoming · 0.5 Miles N. of Ralston · Structure no. EWC

Built
1960
65 years old
Condition
Good
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
786
2024 count
Owner
County
County Highway Agency

About this bridge

Pa Cnty RD L11C over Garland Canal is a prestressed concrete tee beam carrying Pa Cnty RD L11C over Garland Canal in Park County, Wyoming. It was built in 1960, so it is 65 years old, older than the Wyoming average of 48.4 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 786 vehicles a day, roughly 10% of them trucks, projected to reach 1,100 by 2043. The structure is 36 ft (11 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesPa Cnty RD L11C
CrossesGarland Canal
Location0.5 Miles N. of Ralston
RouteCounty Highway 0L11C
StateWyoming
Coordinates44.72307, -108.8672
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.5 US tons
Inventory rating32.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length36 ft (11 m)
Longest span34 ft (10.4 m)
Deck width30 ft (9.2 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic786 (2024)
Projected traffic1,100 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$11,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa Cnty RD L11C over Garland Canal built?

It was built in 1960, making it 65 years old in 2025.

What condition is Pa Cnty RD L11C over Garland Canal 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 February 2024.

How much traffic does Pa Cnty RD L11C over Garland Canal carry?

About 786 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Pa Cnty RD L11C over Garland Canal?

The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 30 ft wide.

Who owns Pa Cnty RD L11C over Garland Canal?

It is owned by the County Highway Agency.