US Bridges

I 255 over Mcbride AVE/TR12

Fair

St. Clair County, Illinois · 1/2 MI S of Il 157 · Structure no. 082021900000000

Built
1979
46 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
89 ft
1 main span
Daily traffic
31,400
2023 count
Owner
State
State Highway Agency

About this bridge

I 255 over Mcbride AVE/TR12 is a steel stringer/multi-beam or girder carrying I 255 over Mcbride AVE/TR12 in St. Clair County, Illinois. It was built in 1979, so it is 46 years old, older than the Illinois average of 45.3 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 31,400 vehicles a day, roughly 17% of them trucks, projected to reach 33,330 by 2046. The structure is 89 ft (27.1 m) long and 121 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

Open in Google Maps
CarriesI 255
CrossesMcbride AVE/TR12
Location1/2 MI S of Il 157
RouteInterstate 255
CountySt. Clair County
StateIllinois
Coordinates38.53711, -90.18502
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.8 US tons
Inventory rating48.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length89 ft (27.1 m)
Longest span87 ft (26.4 m)
Deck width121 ft (36.9 m)
Roadway width112 ft (34.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,400 (2023)
Projected traffic33,330 by 2046
Trucks17%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed36 mi (58 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 255 over Mcbride AVE/TR12 built?

It was built in 1979, making it 46 years old in 2025.

What condition is I 255 over Mcbride AVE/TR12 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 255 over Mcbride AVE/TR12 carry?

About 31,400 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is I 255 over Mcbride AVE/TR12?

The structure is 89 ft (27.1 m) long with a longest span of 87 ft (26.4 m) and a deck 121 ft wide.

Who owns I 255 over Mcbride AVE/TR12?

It is owned by the State Highway Agency.