US Bridges

CO Cnty RD 43 over BNSF Railway

Fair

Converse County, Wyoming · 14 MI N.E. of Douglas · Structure no. DTY

Built
1978
47 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
205 ft
3 main spans
Daily traffic
571
2024 count
Owner
County
County Highway Agency

About this bridge

CO Cnty RD 43 over BNSF Railway is a steel continuous stringer/multi-beam or girder carrying CO Cnty RD 43 over BNSF Railway in Converse County, Wyoming. It was built in 1978, so it is 47 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 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 571 vehicles a day, roughly 45% of them trucks, projected to reach 799 by 2043. The structure is 205 ft (62.5 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCO Cnty RD 43
CrossesBNSF Railway
Location14 MI N.E. of Douglas
RouteCounty Highway 43
CountyConverse County
StateWyoming
Coordinates42.88224, -105.25315
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length205 ft (62.5 m)
Longest span77 ft (23.5 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic571 (2024)
Projected traffic799 by 2043
Trucks45%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$75,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was CO Cnty RD 43 over BNSF Railway built?

It was built in 1978, making it 47 years old in 2025.

What condition is CO Cnty RD 43 over BNSF Railway 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 September 2024.

How much traffic does CO Cnty RD 43 over BNSF Railway carry?

About 571 vehicles per day (2024 count), of which roughly 45% are trucks.

How long is CO Cnty RD 43 over BNSF Railway?

The structure is 205 ft (62.5 m) long with a longest span of 77 ft (23.5 m) and a deck 31 ft wide.

Who owns CO Cnty RD 43 over BNSF Railway?

It is owned by the County Highway Agency.