US Bridges

I-64 EB over NSRR

Good

St. Clair County, Illinois · 0.4 MI W of 25th St. · Structure no. 082015600000000

Built
1968
57 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
272 ft
4 main spans
Daily traffic
37,900
2023 count
Owner
State
State Highway Agency

About this bridge

I-64 EB over NSRR is a steel continuous stringer/multi-beam or girder carrying I-64 EB over NSRR in St. Clair County, Illinois. It was built in 1968, so it is 57 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 37,900 vehicles a day, roughly 13% of them trucks, projected to reach 41,713 by 2046. The structure is 272 ft (82.9 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-64 EB
CrossesNSRR
Location0.4 MI W of 25th St.
RouteInterstate 64
Coordinates38.62379, -90.13177
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating34.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length272 ft (82.9 m)
Longest span95 ft (29 m)
Deck width48 ft (14.6 m)
Roadway width46 ft (13.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,900 (2023)
Projected traffic41,713 by 2046
Trucks13%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 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-64 EB over NSRR built?

It was built in 1968, making it 57 years old in 2025.

What condition is I-64 EB over NSRR 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 February 2023.

How much traffic does I-64 EB over NSRR carry?

About 37,900 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is I-64 EB over NSRR?

The structure is 272 ft (82.9 m) long with a longest span of 95 ft (29 m) and a deck 48 ft wide.

Who owns I-64 EB over NSRR?

It is owned by the State Highway Agency.