AL-257
Carrying AL-257 over Sipsey River
Duncan Bridge, Winston, Alabama
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
AL-257 in Winston, Alabama sits above 36% of rated Alabama bridges on inventory load rating (29 t), while its 1967 build year is earlier than 54% of Winston's recorded-year cohort (78 bridges).
AL-257 in Winston, Alabama is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1967, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure AL:009371
INTERSTATE-ERA · STEEL · MULTI-SPAN · SUPER-LED · ARTERIAL-ADT · STANDARD-LOAD · CAT-POOR
- INTERSTATE-ERA 1950–1979
- STEEL Steel
- MULTI-SPAN 3 spans
- SUPER-LED Superstructure-led
- ARTERIAL-ADT Arterial ADT
- STANDARD-LOAD Standard load
- CAT-POOR Poor
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: AL-257
The AL-257 bridge in Winston, Alabama carries AL-257 over Sipsey River. It was built in 1967, making it 59 years old today. The structure is built primarily of steel continuous and spans 3 sections, stretching 315.5 meters (1035 feet) end to end. Daily traffic averages 4,476 vehicles, placing it in the moderately-trafficked tier of Alabama bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 5/9, superstructure at 4/9, substructure at 6/9. 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.
How AL-257 compares
Age against the county: built in 1967, earlier than 42 of Winston's 78 bridges with a recorded construction year (54%), against a county median build year of 1974. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Alabama bridges with a recorded inventory load rating (16,191 of 16,205 rated).
AL-257 vs every rated Alabama bridge
Inventory load rating (metric tons), FHWA NBI, this state
29 Top 64% higher than 36% of 16,191 bridges
rated Alabama bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Winston inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 78 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1967
- Material
- Steel Continuous
- Number of Spans
- 3
- Structure Length
- 315.5 m (1035 ft)
- Deck Width
- 9.5 m (31 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 4,476 vehicles/day
- Structure Number
- 009371
Condition Analysis
- • The deck (driving surface) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • At 4/9, the superstructure (beams and supports above the deck) is in poor shape, with advanced wear on file for this vintage.
- • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
AL-257 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 AL-257 against other structures in Winston 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 AL-257?
AL-257 in Winston, Alabama has a deck rating of 5/9, superstructure rating of 4/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is AL-257 inspected?
AL-257'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 4,476 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. AL-257 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 AL-257?
AL-257 has an NBI inventory load rating of 29.2 metric tons.
Who is responsible for maintaining AL-257?
AL-257 is owned and maintained by State Highway Agency.
How old is AL-257 and does age affect safety?
AL-257 was built in 1967, making it 59 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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.