FHWA NBI 2024 Inspection record Public-domain dataset

CH 19 EXTENSION IL

Carrying CH 19 EXTENSION IL over WILLOW BRANCH

N EDGE OF NIANTIC, Macon, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
20 t Inventory load rating

Bridge Snapshot: CH 19 EXTENSION IL

The CH 19 EXTENSION IL bridge in Macon, Illinois carries CH 19 EXTENSION IL over WILLOW BRANCH. It was built in 1978, making it 48 years old today. The structure is built primarily of prestressed concrete and spans 2 sections, stretching 24.4 meters (80 feet) end to end. Daily traffic averages 700 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 4/9, superstructure at 4/9, substructure at 5/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 20.4 metric tons.

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

How CH 19 EXTENSION IL compares

▼ 14.2
Load rating vs Illinois average (34.6 t)
Bottom 6%
Lower load rating than 94% of Illinois bridges
368
Bridges in Macon · 48 in Poor condition
CH 19 EXTENSION IL 20.4 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
52.9 / 100 - historical 50–79.9 band
Structural adequacy /55
16.5
Serviceability /30
23.2
Essentiality /15
13.3
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 How the historical reference is calculated.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
4/9
Poor (1–4)
Superstructure
4/9
Poor (1–4)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
20.4 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1978
Material
Prestressed Concrete
Number of Spans
2
Structure Length
24.4 m (80 ft)
Deck Width
8.6 m (28 ft)
Owner
County Highway Agency
Avg Daily Traffic
700 vehicles/day
Structure Number
058322400000000

Condition Analysis

  • At 4/9, the deck (driving surface) is in poor shape, with advanced wear flagged for priority repair.
  • The superstructure (beams and supports above the deck) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
  • The substructure (piers and abutments) rates fair at 5/9, minor deterioration that routine maintenance should address.

How to read this record

CH 19 EXTENSION IL 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 CH 19 EXTENSION IL against other structures in Macon 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 CH 19 EXTENSION IL?

CH 19 EXTENSION IL in Macon, Illinois has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is CH 19 EXTENSION IL inspected?

CH 19 EXTENSION IL'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 700 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. CH 19 EXTENSION IL 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 CH 19 EXTENSION IL?

CH 19 EXTENSION IL has an NBI inventory load rating of 20.4 metric tons.

Who is responsible for maintaining CH 19 EXTENSION IL?

CH 19 EXTENSION IL is owned and maintained by County Highway Agency.

How old is CH 19 EXTENSION IL and does age affect safety?

CH 19 EXTENSION IL was built in 1978, making it 48 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.