FHWA NBI 2024 Inspection record Public-domain dataset

FAS 841

Carrying FAS 841 over WEST FORK CREEK

4.5MI S JCT ILL 158, St. Clair, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
56 t Inventory load rating

Bridge Snapshot: FAS 841

The FAS 841 bridge in St. Clair, Illinois carries FAS 841 over WEST FORK CREEK. It was built in 1959, making it 67 years old today. It was last reconstructed in 1992, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 19.3 meters (63 feet) end to end. Daily traffic averages 3,250 vehicles, placing it in the moderately-trafficked tier of Illinois bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 8/9, superstructure at 6/9, substructure at 7/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 56.4 metric tons.

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

How FAS 841 compares

▲ 21.8
Load rating vs Illinois average (34.6 t)
Top 4%
Higher load rating than 96% of Illinois bridges
502
Bridges in St. Clair · 40 in Poor condition
FAS 841 56.4 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
88.2 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
23.0
Essentiality /15
10.2
Special reductions
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 How the historical reference is calculated.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
8/9
Good (7–9)
Superstructure
6/9
Fair (5–6)
Substructure
7/9
Good (7–9)
Inventory Load Rating
56.4 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1959
Last Reconstructed
1992
Material
Steel
Number of Spans
1
Structure Length
19.3 m (63 ft)
Deck Width
10.9 m (36 ft)
Owner
County Highway Agency
Avg Daily Traffic
3,250 vehicles/day
Structure Number
082303300000000

Condition Analysis

  • The deck (driving surface) rates good at 8/9, with no significant deterioration on file.
  • The superstructure (beams and supports above the deck) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
  • 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 FAS 841 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 FAS 841 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 FAS 841?

FAS 841 in St. Clair, Illinois has a deck rating of 8/9, superstructure rating of 6/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is FAS 841 inspected?

FAS 841'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 3,250 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. FAS 841 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 FAS 841?

FAS 841 has an NBI inventory load rating of 56.4 metric tons.

Who is responsible for maintaining FAS 841?

FAS 841 is owned and maintained by County Highway Agency.

How old is FAS 841 and does age affect safety?

FAS 841 was built in 1959, making it 67 years old and last reconstructed in 1992.

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.