FHWA NBI 2024 Inspection record Public-domain dataset

LYON ROAD

Carrying LYON ROAD over CHITTENANGO CREEK

AT NELSON, Madison, New York

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
37 t Inventory load rating

Bridge Snapshot: LYON ROAD

The LYON ROAD bridge in Madison, New York carries LYON ROAD over CHITTENANGO CREEK. It was built in 1932, making it 94 years old today. The structure is built primarily of steel and spans 1 section, stretching 8.2 meters (27 feet) end to end. Daily traffic averages 294 vehicles, placing it in the lower-traffic tier of New York bridges. It is owned and maintained by Town/Township Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 6/9, substructure at 4/9. 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 37.2 metric tons.

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

How LYON ROAD compares

▼ 4.7
Load rating vs New York average (41.9 t)
Bottom 41%
Lower load rating than 59% of New York bridges
175
Bridges in Madison · 11 in Poor condition
LYON ROAD 37.2 t
New York average 41.9 t

Live comparison across New York.

Historical Sufficiency Rating

PlainBridge-computed
49.8 / 100 - historical 20–49.9 band
Structural adequacy /55
30.0
Serviceability /30
7.0
Essentiality /15
14.8
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 How the historical reference is calculated.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

Deck
6/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
37.2 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1932
Material
Steel
Number of Spans
1
Structure Length
8.2 m (27 ft)
Deck Width
6.2 m (20 ft)
Owner
Town/Township Highway Agency
Avg Daily Traffic
294 vehicles/day
Structure Number
000000002205200

Condition Analysis

  • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • The substructure (piers and abutments) rates poor at 4/9, advanced deterioration that should be prioritized for repair.

How to read this record

LYON ROAD 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 LYON ROAD against other structures in Madison and across New York. New York 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 LYON ROAD?

LYON ROAD in Madison, New York has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is LYON ROAD inspected?

LYON ROAD'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 294 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. LYON ROAD 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 LYON ROAD?

LYON ROAD has an NBI inventory load rating of 37.2 metric tons.

Who is responsible for maintaining LYON ROAD?

LYON ROAD is owned and maintained by Town/Township Highway Agency.

How old is LYON ROAD and does age affect safety?

LYON ROAD was built in 1932, making it 94 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.