US Bridges

I25/US20-26-87 Bus over I-25

Fair

Converse County, Wyoming · Douglas Marginal · Structure no. BLM

Built
1966
59 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
245 ft
4 main spans
Daily traffic
7,719
2024 count
Owner
State
State Highway Agency

About this bridge

I25/US20-26-87 Bus over I-25 is a steel continuous stringer/multi-beam or girder carrying I25/US20-26-87 Bus over I-25 in Converse County, Wyoming. It was built in 1966, so it is 59 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 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 7,719 vehicles a day, roughly 5% of them trucks, projected to reach 10,807 by 2043. The structure is 245 ft (74.7 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesI25/US20-26-87 Bus
CrossesI-25
LocationDouglas Marginal
RouteInterstate 58
CountyConverse County
StateWyoming
Coordinates42.75948, -105.41223
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
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 alignment8: Equal to present desirable criteria
Operating rating74.8 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length245 ft (74.7 m)
Longest span72 ft (21.9 m)
Deck width45 ft (13.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,719 (2024)
Projected traffic10,807 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$38,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I25/US20-26-87 Bus over I-25 built?

It was built in 1966, making it 59 years old in 2025.

What condition is I25/US20-26-87 Bus over I-25 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 April 2023.

How much traffic does I25/US20-26-87 Bus over I-25 carry?

About 7,719 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is I25/US20-26-87 Bus over I-25?

The structure is 245 ft (74.7 m) long with a longest span of 72 ft (21.9 m) and a deck 45 ft wide.

Who owns I25/US20-26-87 Bus over I-25?

It is owned by the State Highway Agency.