US Bridges

Pl Cnty RD 87 over Canal No 1

FairPosted for load

Platte County, Wyoming · 7 Miles S. of Wheatland · Structure no. DQG

Built
1931
94 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
25 ft
1 main span
Daily traffic
138
2024 count
Owner
County
County Highway Agency

About this bridge

Pl Cnty RD 87 over Canal No 1 is a wood or timber stringer/multi-beam or girder carrying Pl Cnty RD 87 over Canal No 1 in Platte County, Wyoming. It was built in 1931, so it is 94 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. Its operating status is: posted for load restriction.

It carries about 138 vehicles a day, roughly 11% of them trucks, projected to reach 193 by 2043. The structure is 25 ft (7.6 m) long and 24 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesPl Cnty RD 87
CrossesCanal No 1
Location7 Miles S. of Wheatland
RouteCounty Highway 87
CountyPlatte County
StateWyoming
Coordinates41.95003, -104.98213
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionNovember 2024
Inspection intervalevery 12 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 alignment7: Better than present minimum criteria
Operating rating26.6 US tons
Inventory rating17.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span21 ft (6.4 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic138 (2024)
Projected traffic193 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$193,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pl Cnty RD 87 over Canal No 1 built?

It was built in 1931, making it 94 years old in 2025.

What condition is Pl Cnty RD 87 over Canal No 1 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 November 2024.

How much traffic does Pl Cnty RD 87 over Canal No 1 carry?

About 138 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Pl Cnty RD 87 over Canal No 1?

The structure is 25 ft (7.6 m) long with a longest span of 21 ft (6.4 m) and a deck 24 ft wide.

Who owns Pl Cnty RD 87 over Canal No 1?

It is owned by the County Highway Agency.