TRI-STATE I-294
Carrying TRI-STATE I-294 over DEERFIELD RD/RMP F
1/3 MI S LAKE COOK, Lake, Illinois
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
TRI-STATE I-294 in Lake, Illinois sits above 68% of rated Illinois bridges on inventory load rating (36 t), while its 2001 build year is earlier than 24% of Lake's recorded-year cohort (251 bridges).
TRI-STATE I-294 in Lake, Illinois is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 2001, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure IL:049992900000000
POST-2000 · PRESTRESS · SINGLE-SPAN · TIED-CTRL · HEAVY-ADT · STANDARD-LOAD · CAT-GOOD
- POST-2000 2000+
- PRESTRESS Prestressed concrete
- SINGLE-SPAN Single span
- TIED-CTRL Tied control
- HEAVY-ADT Heavy ADT
- STANDARD-LOAD Standard load
- CAT-GOOD Good
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: TRI-STATE I-294
The TRI-STATE I-294 bridge in Lake, Illinois carries TRI-STATE I-294 over DEERFIELD RD/RMP F. It was built in 2001, making it 25 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 11.0 meters (36 feet) end to end. Daily traffic averages 59,350 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 7/9, 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.
How TRI-STATE I-294 compares
Age against the county: built in 2001, earlier than 60 of Lake's 251 bridges with a recorded construction year (24%), against a county median build year of 1977. This is one of the newer structures in its county.
Live comparison across Illinois bridges with a recorded inventory load rating (26,904 of 26,928 rated).
TRI-STATE I-294 vs every rated Illinois bridge
Inventory load rating (metric tons), FHWA NBI, this state
36 Top 32% higher than 68% of 26,904 bridges
rated Illinois bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Lake inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 251 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 2001
- Material
- Prestressed Concrete
- Number of Spans
- 1
- Structure Length
- 11.0 m (36 ft)
- Deck Width
- 178.3 m (585 ft)
- Owner
- State Toll Authority
- Avg Daily Traffic
- 59,350 vehicles/day
- Structure Number
- 049992900000000
Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether TRI-STATE I-294 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 TRI-STATE I-294 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 TRI-STATE I-294?
TRI-STATE I-294 in Lake, Illinois has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is TRI-STATE I-294 inspected?
TRI-STATE I-294'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 59,350 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. TRI-STATE I-294 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 TRI-STATE I-294?
TRI-STATE I-294 has an NBI inventory load rating of 35.6 metric tons.
Who is responsible for maintaining TRI-STATE I-294?
TRI-STATE I-294 is owned and maintained by State Toll Authority.
How old is TRI-STATE I-294 and does age affect safety?
TRI-STATE I-294 was built in 2001, making it 25 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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.