US Bridges

Na Cnty RD 403 over Stinking Creek

Fair

Natrona County, Wyoming · 23 MI SW of Casper · Structure no. LWM

Built
2007
18 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
42 ft
4 main spans
Daily traffic
2
2024 count
Owner
County
County Highway Agency

About this bridge

Na Cnty RD 403 over Stinking Creek is a concrete culvert carrying Na Cnty RD 403 over Stinking Creek in Natrona 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2 vehicles a day, projected to reach 3 by 2043. The structure is 42 ft (12.8 m) long and 18 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesNa Cnty RD 403
CrossesStinking Creek
Location23 MI SW of Casper
RouteCounty Highway 403
CountyNatrona County
StateWyoming
Coordinates42.54202, -106.45956
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadUnknown
Structure length42 ft (12.8 m)
Longest span10 ft (3.2 m)
Deck width18 ft (5.5 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2 (2024)
Projected traffic3 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Na Cnty RD 403 over Stinking Creek built?

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

What condition is Na Cnty RD 403 over Stinking Creek 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 August 2023.

How much traffic does Na Cnty RD 403 over Stinking Creek carry?

About 2 vehicles per day (2024 count).

How long is Na Cnty RD 403 over Stinking Creek?

The structure is 42 ft (12.8 m) long with a longest span of 10 ft (3.2 m) and a deck 18 ft wide.

Who owns Na Cnty RD 403 over Stinking Creek?

It is owned by the County Highway Agency.