FHWA NBI 2024 Inspection record Public-domain dataset

FAS-1879

Carrying FAS-1879 over MIDDLE FORK CREEK

1.3 MI NE MACEDONIA, Hamilton, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
21 t Inventory load rating

Bridge Snapshot: FAS-1879

The FAS-1879 bridge in Hamilton, Illinois carries FAS-1879 over MIDDLE FORK CREEK. It was built in 1960, making it 66 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 24.4 meters (80 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 County Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 6/9, substructure at 6/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. 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 FAS-1879 compares

▼ 13.5
Load rating vs Illinois average (34.6 t)
Bottom 6%
Lower load rating than 94% of Illinois bridges
164
Bridges in Hamilton · 4 in Poor condition
FAS-1879 21.1 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
70.4 / 100 - historical 50–79.9 band
Structural adequacy /55
42.6
Serviceability /30
14.0
Essentiality /15
14.8
Special reductions
−1.0

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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
6/9
Fair (5–6)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
21.1 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1960
Material
Concrete Continuous
Number of Spans
3
Structure Length
24.4 m (80 ft)
Deck Width
8.7 m (29 ft)
Owner
County Highway Agency
Avg Daily Traffic
300 vehicles/day
Structure Number
033301300000000

Condition Analysis

  • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
  • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

This page shows what the last federal inspection recorded, not whether FAS-1879 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-1879 against other structures in Hamilton 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-1879?

FAS-1879 in Hamilton, Illinois has a deck rating of 7/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is FAS-1879 inspected?

FAS-1879'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. FAS-1879 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-1879?

FAS-1879 has an NBI inventory load rating of 21.1 metric tons.

Who is responsible for maintaining FAS-1879?

FAS-1879 is owned and maintained by County Highway Agency.

How old is FAS-1879 and does age affect safety?

FAS-1879 was built in 1960, making it 66 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.