US Bridges

Il 3 NB over 2 Future Trra Tracks

Good

St. Clair County, Illinois · 0.5MI SW I-70 · Structure no. 082031400000000

Built
2016
9 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
200 ft
3 main spans
Daily traffic
2,600
2024 count
Owner
State
State Highway Agency

About this bridge

Il 3 NB over 2 Future Trra Tracks is a steel continuous stringer/multi-beam or girder carrying Il 3 NB over 2 Future Trra Tracks in St. Clair County, Illinois. It was built in 2016, so it is 9 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,600 vehicles a day, roughly 32% of them trucks, projected to reach 1,187 by 2046. The structure is 200 ft (61 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIl 3 NB
Crosses2 Future Trra Tracks
Location0.5MI SW I-70
CountySt. Clair County
StateIllinois
Coordinates38.63711, -90.16141
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating36.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length200 ft (61 m)
Longest span74 ft (22.6 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,600 (2024)
Projected traffic1,187 by 2046
Trucks32%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Il 3 NB over 2 Future Trra Tracks built?

It was built in 2016, making it 9 years old in 2025.

What condition is Il 3 NB over 2 Future Trra Tracks in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Il 3 NB over 2 Future Trra Tracks carry?

About 2,600 vehicles per day (2024 count), of which roughly 32% are trucks.

How long is Il 3 NB over 2 Future Trra Tracks?

The structure is 200 ft (61 m) long with a longest span of 74 ft (22.6 m) and a deck 41 ft wide.

Who owns Il 3 NB over 2 Future Trra Tracks?

It is owned by the State Highway Agency.