FHWA NBI 2024 Inspection record Public-domain dataset

TR 302

Carrying TR 302 over GRAPE CREEK

CITY OF TILTON- SW, Vermilion, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
21 t Inventory load rating

Bridge Snapshot: TR 302

The TR 302 bridge in Vermilion, Illinois carries TR 302 over GRAPE CREEK. It was built in 1972, making it 54 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 13.8 meters (45 feet) end to end. Daily traffic averages 300 vehicles, placing it in the lower-traffic tier of Illinois bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 4/9, superstructure at 4/9, substructure at 7/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 21.1 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How TR 302 compares

▼ 13.5
Load rating vs Illinois average (34.6 t)
Bottom 6%
Lower load rating than 94% of Illinois bridges
515
Bridges in Vermilion · 27 in Poor condition
TR 302 21.1 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
49.4 / 100 - historical 20–49.9 band
Structural adequacy /55
17.6
Serviceability /30
19.8
Essentiality /15
14.9
Special reductions
−3.0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
4/9
Poor (1–4)
Superstructure
4/9
Poor (1–4)
Substructure
7/9
Good (7–9)
Inventory Load Rating
21.1 t
NBI inventory level (metric tons)
Overall Condition
Poor

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1972
Material
Prestressed Concrete
Number of Spans
1
Structure Length
13.8 m (45 ft)
Deck Width
8.2 m (27 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
300 vehicles/day
Structure Number
092327400000000

Condition Analysis

  • The deck (driving surface) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
  • At 4/9, the superstructure (beams and supports above the deck) is in poor shape, with advanced wear flagged for priority repair.
  • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.

How to read this record

TR 302 is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare TR 302 against other structures in Vermilion 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 TR 302?

TR 302 in Vermilion, Illinois has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is TR 302 inspected?

TR 302'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 300 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. TR 302 is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for TR 302?

TR 302 has an NBI inventory load rating of 21.1 metric tons.

Who is responsible for maintaining TR 302?

TR 302 is owned and maintained by City/Municipal Highway Agency.

How old is TR 302 and does age affect safety?

TR 302 was built in 1972, making it 54 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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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.