US Bridges

FR Cnty RD 476 over Pilot Canal

PoorPosted for load

Fremont County, Wyoming · 10 MI N.W. of Riverton · Structure no. ELZ

Built
1970
55 years old
Condition
Poor
inspected April 2024
Type
Channel Beam
Concrete
Length
65 ft
3 main spans
Daily traffic
127
2024 count
Owner
County
County Highway Agency

About this bridge

FR Cnty RD 476 over Pilot Canal is a concrete channel beam carrying FR Cnty RD 476 over Pilot Canal in Fremont County, Wyoming. It was built in 1970, so it is 55 years old, older than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 127 vehicles a day, roughly 12% of them trucks, projected to reach 178 by 2043. The structure is 65 ft (19.7 m) long and 21 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesFR Cnty RD 476
CrossesPilot Canal
Location10 MI N.W. of Riverton
RouteCounty Highway 476
CountyFremont County
StateWyoming
Coordinates43.13602, -108.60346
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58 US tons
Inventory rating34.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length65 ft (19.7 m)
Longest span21 ft (6.4 m)
Deck width21 ft (6.3 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic127 (2024)
Projected traffic178 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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$82,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FR Cnty RD 476 over Pilot Canal built?

It was built in 1970, making it 55 years old in 2025.

What condition is FR Cnty RD 476 over Pilot Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does FR Cnty RD 476 over Pilot Canal carry?

About 127 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is FR Cnty RD 476 over Pilot Canal?

The structure is 65 ft (19.7 m) long with a longest span of 21 ft (6.4 m) and a deck 21 ft wide.

Who owns FR Cnty RD 476 over Pilot Canal?

It is owned by the County Highway Agency.