US Bridges

Pl Cnty RD 91 over Canal No 1

GoodPosted for load

Platte County, Wyoming · 15 MI SW of Wheatland · Structure no. MBR

Built
2007
18 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
36
2024 count
Owner
County
County Highway Agency

About this bridge

Pl Cnty RD 91 over Canal No 1 is a steel stringer/multi-beam or girder carrying Pl Cnty RD 91 over Canal No 1 in Platte County, Wyoming. It was built in 2007, so it is 18 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 36 vehicles a day, roughly 3% of them trucks, projected to reach 50 by 2043. The structure is 40 ft (12.2 m) long and 16 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesPl Cnty RD 91
CrossesCanal No 1
Location15 MI SW of Wheatland
RouteCounty Highway 91
CountyPlatte County
StateWyoming
Coordinates41.91112, -105.08899
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.1 US tons
Inventory rating46 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span37 ft (11.3 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36 (2024)
Projected traffic50 by 2043
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$42,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pl Cnty RD 91 over Canal No 1 built?

It was built in 2007, making it 18 years old in 2025.

What condition is Pl Cnty RD 91 over Canal No 1 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 November 2023.

How much traffic does Pl Cnty RD 91 over Canal No 1 carry?

About 36 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Pl Cnty RD 91 over Canal No 1?

The structure is 40 ft (12.2 m) long with a longest span of 37 ft (11.3 m) and a deck 16 ft wide.

Who owns Pl Cnty RD 91 over Canal No 1?

It is owned by the County Highway Agency.