FHWA NBI 2024 Inspection record Public-domain dataset

COUNTY HIGHWAY 16

Carrying COUNTY HIGHWAY 16 over TRIB TO HOG CREEK

1.0 MI SO.FAP 841, Perry, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
24 t Inventory load rating

Bridge Snapshot: COUNTY HIGHWAY 16

The COUNTY HIGHWAY 16 bridge in Perry, Illinois carries COUNTY HIGHWAY 16 over TRIB TO HOG CREEK. It was built in 1985, making it 41 years old today. The structure is built primarily of prestressed concrete and spans 2 sections, stretching 13.7 meters (45 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 a deck rating of 3/9, superstructure at 3/9, substructure at 7/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 24.0 metric tons.

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

How COUNTY HIGHWAY 16 compares

▼ 10.6
Load rating vs Illinois average (34.6 t)
Bottom 9%
Lower load rating than 91% of Illinois bridges
139
Bridges in Perry · 10 in Poor condition
COUNTY HIGHWAY 16 24.0 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
37.1 / 100 - historical 20–49.9 band
Structural adequacy /55
7.1
Serviceability /30
15.0
Essentiality /15
15.0
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 How the historical reference is calculated.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
3/9
Poor (1–4)
Superstructure
3/9
Poor (1–4)
Substructure
7/9
Good (7–9)
Inventory Load Rating
24.0 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1985
Material
Prestressed Concrete
Number of Spans
2
Structure Length
13.7 m (45 ft)
Deck Width
6.9 m (23 ft)
Owner
Town/Township Highway Agency
Avg Daily Traffic
50 vehicles/day
Structure Number
073313500000000

Condition Analysis

  • At 3/9, 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 3/9, advanced deterioration that should be prioritized for repair.
  • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.

How to read this record

COUNTY HIGHWAY 16 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 COUNTY HIGHWAY 16 against other structures in Perry 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 COUNTY HIGHWAY 16?

COUNTY HIGHWAY 16 in Perry, Illinois has a deck rating of 3/9, superstructure rating of 3/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is COUNTY HIGHWAY 16 inspected?

COUNTY HIGHWAY 16'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. COUNTY HIGHWAY 16 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 COUNTY HIGHWAY 16?

COUNTY HIGHWAY 16 has an NBI inventory load rating of 24.0 metric tons.

Who is responsible for maintaining COUNTY HIGHWAY 16?

COUNTY HIGHWAY 16 is owned and maintained by Town/Township Highway Agency.

How old is COUNTY HIGHWAY 16 and does age affect safety?

COUNTY HIGHWAY 16 was built in 1985, making it 41 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.