US Bridges

I-25 Service Road over BNSF Railway

PoorPosted for load

Platte County, Wyoming · Cheyenne - Chugwater · Structure no. ADA

Built
1935
90 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
288 ft
6 main spans
Daily traffic
87
2024 count
Owner
State
State Highway Agency

About this bridge

I-25 Service Road over BNSF Railway is a steel stringer/multi-beam or girder carrying I-25 Service Road over BNSF Railway in Platte County, Wyoming. It was built in 1935, so it is 90 years old, older than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 87 vehicles a day, roughly 13% of them trucks, projected to reach 122 by 2043. The structure is 288 ft (87.9 m) long and 32 ft wide.

Location

Open in Google Maps
CarriesI-25 Service Road
CrossesBNSF Railway
LocationCheyenne - Chugwater
CountyPlatte County
StateWyoming
Coordinates41.75241, -104.82686
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.2 US tons
Inventory rating25.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length288 ft (87.9 m)
Longest span50 ft (15.2 m)
Deck width32 ft (9.9 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic87 (2024)
Projected traffic122 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$720,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-25 Service Road over BNSF Railway built?

It was built in 1935, making it 90 years old in 2025.

What condition is I-25 Service Road over BNSF Railway in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does I-25 Service Road over BNSF Railway carry?

About 87 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is I-25 Service Road over BNSF Railway?

The structure is 288 ft (87.9 m) long with a longest span of 50 ft (15.2 m) and a deck 32 ft wide.

Who owns I-25 Service Road over BNSF Railway?

It is owned by the State Highway Agency.