US Bridges

I-25 Sbl Off Ramp over US 26

Fair

Platte County, Wyoming · Dwyer JCT · Structure no. AEH

Built
1966
59 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
128 ft
3 main spans
Daily traffic
587
2024 count
Owner
State
State Highway Agency

About this bridge

I-25 Sbl Off Ramp over US 26 is a concrete continuous slab carrying I-25 Sbl Off Ramp over US 26 in Platte 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 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 587 vehicles a day, roughly 35% of them trucks, projected to reach 822 by 2043. The structure is 128 ft (39.1 m) long and 25 ft wide.

Location

Open in Google Maps
CarriesI-25 Sbl Off Ramp
CrossesUS 26
LocationDwyer JCT
RouteInterstate 520
CountyPlatte County
StateWyoming
Coordinates42.23105, -105.0229
Functional classRural Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no 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 alignment6: Equal to present minimum criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length128 ft (39.1 m)
Longest span49 ft (14.9 m)
Deck width25 ft (7.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deck18 ft (5.4 m)

Traffic and service

Average daily traffic587 (2024)
Projected traffic822 by 2043
Trucks35%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-25 Sbl Off Ramp over US 26 built?

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

What condition is I-25 Sbl Off Ramp over US 26 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 January 2025.

How much traffic does I-25 Sbl Off Ramp over US 26 carry?

About 587 vehicles per day (2024 count), of which roughly 35% are trucks.

How long is I-25 Sbl Off Ramp over US 26?

The structure is 128 ft (39.1 m) long with a longest span of 49 ft (14.9 m) and a deck 25 ft wide.

Who owns I-25 Sbl Off Ramp over US 26?

It is owned by the State Highway Agency.