FHWA NBI 2024 Inspection record Public-domain dataset

PERRIN RD/ TR 264

Carrying PERRIN RD/ TR 264 over LITTLE SILVER CR

1 MI E IL 4, St. Clair, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
24 t Inventory load rating

Bridge Snapshot: PERRIN RD/ TR 264

The PERRIN RD/ TR 264 bridge in St. Clair, Illinois carries PERRIN RD/ TR 264 over LITTLE SILVER CR. It was built in 1957, making it 69 years old today. The structure is built primarily of steel and spans 2 sections, stretching 9.1 meters (30 feet) end to end. Daily traffic averages 50 vehicles, placing it in the lower-traffic tier of Illinois bridges. It is owned and maintained by Town/Township Highway Agency.

The latest FHWA inspection records show culvert at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 24.3 metric tons.

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

How PERRIN RD/ TR 264 compares

▼ 10.3
Load rating vs Illinois average (34.6 t)
Bottom 10%
Lower load rating than 90% of Illinois bridges
502
Bridges in St. Clair · 40 in Poor condition
PERRIN RD/ TR 264 24.3 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
88.5 / 100 - historical 80–100 band
Structural adequacy /55
47.5
Serviceability /30
28.0
Essentiality /15
15.0
Special reductions
−2.0

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 How the historical reference is calculated.

Condition Ratings

Culvert
6/9
Fair (5–6)
Inventory Load Rating
24.3 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1957
Material
Steel
Number of Spans
2
Structure Length
9.1 m (30 ft)
Owner
Town/Township Highway Agency
Avg Daily Traffic
50 vehicles/day
Structure Number
082500500000000

How to read this record

This page shows what the last federal inspection recorded, not whether PERRIN RD/ TR 264 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 PERRIN RD/ TR 264 against other structures in St. Clair 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 PERRIN RD/ TR 264?

PERRIN RD/ TR 264 in St. Clair, Illinois on the FHWA's 0–9 scale.

How often is PERRIN RD/ TR 264 inspected?

PERRIN RD/ TR 264'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 50 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. PERRIN RD/ TR 264 is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for PERRIN RD/ TR 264?

PERRIN RD/ TR 264 has an NBI inventory load rating of 24.3 metric tons.

Who is responsible for maintaining PERRIN RD/ TR 264?

PERRIN RD/ TR 264 is owned and maintained by Town/Township Highway Agency.

How old is PERRIN RD/ TR 264 and does age affect safety?

PERRIN RD/ TR 264 was built in 1957, making it 69 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.