CO 27
Carrying CO 27 over ST. FLORIAN BRANCH
1.5 MI N INT US 72, Lauderdale, Alabama
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
CO 27 in Lauderdale, Alabama sits above 3% of rated Alabama bridges on inventory load rating (5 t), while its 1937 build year is earlier than 79% of Lauderdale's recorded-year cohort (266 bridges).
CO 27 in Lauderdale, Alabama is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1937, 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:001571
PRE-1950 · CONCRETE · LONG-SPAN-RUN · TIED-CTRL · LOCAL-ADT · LIGHT-LOAD · CAT-POOR
- PRE-1950 Pre-1950
- CONCRETE Concrete
- LONG-SPAN-RUN 4 spans
- TIED-CTRL Tied control
- LOCAL-ADT Local ADT
- LIGHT-LOAD Light 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: CO 27
The CO 27 bridge in Lauderdale, Alabama carries CO 27 over ST. FLORIAN BRANCH. It was built in 1937, making it 89 years old today. The structure is built primarily of concrete and spans 4 sections, stretching 36.9 meters (121 feet) end to end. Daily traffic averages 500 vehicles, placing it in the lower-traffic tier of Alabama bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 5/9, superstructure at 4/9, substructure at 4/9. 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.
How CO 27 compares
Age against the county: built in 1937, earlier than 211 of Lauderdale's 266 bridges with a recorded construction year (79%), against a county median build year of 1981. 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).
CO 27 vs every rated Alabama bridge
Inventory load rating (metric tons), FHWA NBI, this state
5 Top 97% higher than 3% 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.
Lauderdale inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 266 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
- 1937
- Material
- Concrete
- Number of Spans
- 4
- Structure Length
- 36.9 m (121 ft)
- Deck Width
- 7.0 m (23 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 500 vehicles/day
- Structure Number
- 001571
Condition Analysis
- • At 5/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • The superstructure (beams and supports above the deck) rates poor at 4/9, with advanced deterioration recorded on the latest inspection.
- • The substructure (piers and abutments) rates poor at 4/9, with advanced deterioration recorded on the latest inspection.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
CO 27 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 CO 27 against other structures in Lauderdale 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 CO 27?
CO 27 in Lauderdale, Alabama has a deck rating of 5/9, superstructure rating of 4/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is CO 27 inspected?
CO 27'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 500 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. CO 27 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 CO 27?
CO 27 has an NBI inventory load rating of 4.5 metric tons.
Who is responsible for maintaining CO 27?
CO 27 is owned and maintained by County Highway Agency.
How old is CO 27 and does age affect safety?
CO 27 was built in 1937, making it 89 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.