FHWA NBI 2024 Inspection record Public-domain dataset

LYONS ST

Carrying LYONS ST over SNAKE BAYOU

0.5 MI W ALA 188, Mobile, Alabama

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
17 t Inventory load rating

Bridge Snapshot: LYONS ST

The LYONS ST bridge in Mobile, Alabama carries LYONS ST over SNAKE BAYOU. It was built in 1947, making it 79 years old today. It was last reconstructed in 1992, extending its service life. The structure is built primarily of concrete and spans 1 section, stretching 10.4 meters (34 feet) end to end. Daily traffic averages 118 vehicles, placing it in the lower-traffic tier of Alabama bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 6/9, substructure at 4/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 16.5 metric tons.

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

How LYONS ST compares

▼ 21.8
Load rating vs Alabama average (38.3 t)
Bottom 7%
Lower load rating than 93% of Alabama bridges
502
Bridges in Mobile · 12 in Poor condition
LYONS ST 16.5 t
Alabama average 38.3 t

Live comparison across Alabama.

Historical Sufficiency Rating

PlainBridge-computed
47.1 / 100 - historical 20–49.9 band
Structural adequacy /55
9.4
Serviceability /30
22.8
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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
6/9
Fair (5–6)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
16.5 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1947
Last Reconstructed
1992
Material
Concrete
Number of Spans
1
Structure Length
10.4 m (34 ft)
Deck Width
6.0 m (20 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
118 vehicles/day
Structure Number
009219

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 4/9, the substructure (piers and abutments) is in poor shape, with advanced wear flagged for priority repair.

How to read this record

LYONS ST 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 LYONS ST against other structures in Mobile and across Alabama. Alabama 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 LYONS ST?

LYONS ST in Mobile, Alabama has a deck rating of 7/9, superstructure rating of 6/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is LYONS ST inspected?

LYONS ST'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 118 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. LYONS ST 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 LYONS ST?

LYONS ST has an NBI inventory load rating of 16.5 metric tons.

Who is responsible for maintaining LYONS ST?

LYONS ST is owned and maintained by City/Municipal Highway Agency.

How old is LYONS ST and does age affect safety?

LYONS ST was built in 1947, making it 79 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.