US Bridges

Na Cnty RD 319 over Casper Canal

Good

Natrona County, Wyoming · 14 Miles E. of Casper · Structure no. FRS

Built
1992
33 years old
Condition
Good
inspected August 2024
Type
Culvert
Steel
Length
29 ft
1 main span
Daily traffic
6
2024 count
Owner
County
County Highway Agency

About this bridge

Na Cnty RD 319 over Casper Canal is a steel culvert carrying Na Cnty RD 319 over Casper Canal in Natrona County, Wyoming. It was built in 1992, so it is 33 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.

It carries about 6 vehicles a day, projected to reach 8 by 2043. The structure is 29 ft (8.7 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNa Cnty RD 319
CrossesCasper Canal
Location14 Miles E. of Casper
RouteCounty Highway 319
CountyNatrona County
StateWyoming
Coordinates42.78917, -106.61409
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length29 ft (8.7 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6 (2024)
Projected traffic8 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$18,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Na Cnty RD 319 over Casper Canal built?

It was built in 1992, making it 33 years old in 2025.

What condition is Na Cnty RD 319 over Casper 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 August 2024.

How much traffic does Na Cnty RD 319 over Casper Canal carry?

About 6 vehicles per day (2024 count).

How long is Na Cnty RD 319 over Casper Canal?

The structure is 29 ft (8.7 m) long with a longest span of 20 ft (6.1 m).

Who owns Na Cnty RD 319 over Casper Canal?

It is owned by the County Highway Agency.