INTERSTATE 94 SB
Carrying INTERSTATE 94 SB over E J & E RR
I94 .5M S ILL 176, Lake, Illinois
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: INTERSTATE 94 SB
The INTERSTATE 94 SB bridge in Lake, Illinois carries INTERSTATE 94 SB over E J & E RR. It was built in 1958, making it 68 years old today. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 57.3 meters (188 feet) end to end. Daily traffic averages 72,350 vehicles, placing it in the heavily-trafficked tier of Illinois bridges. It is owned and maintained by State Toll Authority.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 8/9, substructure at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 37.6 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How INTERSTATE 94 SB compares
Live comparison across Illinois.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1958
- Material
- Prestressed Concrete
- Number of Spans
- 3
- Structure Length
- 57.3 m (188 ft)
- Deck Width
- 18.6 m (61 ft)
- Owner
- State Toll Authority
- Avg Daily Traffic
- 72,350 vehicles/day
- Structure Number
- 049992700000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • The superstructure (beams and supports above the deck) is in good condition (8/9), showing no significant deterioration.
- • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.
How to read this record
This page shows what the last federal inspection recorded, not whether INTERSTATE 94 SB is safe to cross today. Here is how to use it.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
- Compare INTERSTATE 94 SB against other structures in Lake and across Illinois. Illinois bridges
- Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge
Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.
Frequently Asked Questions
What do the condition ratings mean for INTERSTATE 94 SB?
INTERSTATE 94 SB in Lake, Illinois has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is INTERSTATE 94 SB inspected?
INTERSTATE 94 SB's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 72,350 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. INTERSTATE 94 SB is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for INTERSTATE 94 SB?
INTERSTATE 94 SB has an NBI inventory load rating of 37.6 metric tons.
Who is responsible for maintaining INTERSTATE 94 SB?
INTERSTATE 94 SB is owned and maintained by State Toll Authority.
How old is INTERSTATE 94 SB and does age affect safety?
INTERSTATE 94 SB was built in 1958, making it 68 years old.
Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.