US Bridges

Pl Cnty RD 104 over Stewart Draw

Fair

Platte County, Wyoming · T21N R067W S30 · Structure no. DQB

Built
1965
60 years old, rebuilt 1986
Condition
Fair
inspected November 2024
Type
Culvert
Steel
Length
38 ft
5 main spans
Daily traffic
138
2024 count
Owner
County
County Highway Agency

About this bridge

Pl Cnty RD 104 over Stewart Draw is a steel culvert carrying Pl Cnty RD 104 over Stewart Draw in Platte County, Wyoming. It was built in 1965 and reconstructed in 1986, so it is 60 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.

It carries about 138 vehicles a day, roughly 11% of them trucks, projected to reach 193 by 2043. The structure is 38 ft (11.7 m) long. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesPl Cnty RD 104
CrossesStewart Draw
LocationT21N R067W S30
RouteCounty Highway 104
CountyPlatte County
StateWyoming
Coordinates41.77032, -104.93533
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans5
Design loadUnknown
Structure length38 ft (11.7 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 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 closed123.7 mi (199 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$39,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pl Cnty RD 104 over Stewart Draw built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1986.

What condition is Pl Cnty RD 104 over Stewart Draw 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 104 over Stewart Draw carry?

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

How long is Pl Cnty RD 104 over Stewart Draw?

The structure is 38 ft (11.7 m) long with a longest span of 6 ft (1.8 m).

Who owns Pl Cnty RD 104 over Stewart Draw?

It is owned by the County Highway Agency.