Sligo Rd
Carrying Sligo Rd over GALES CREEK
3.2 MI.SW.US61 STATE, West Feliciana, Louisiana
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
Sligo Rd in West Feliciana, Louisiana sits above 1% of rated Louisiana bridges on inventory load rating (0 t), while its 1975 build year is earlier than 68% of West Feliciana's recorded-year cohort (108 bridges).
Sligo Rd in West Feliciana, Louisiana is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1975, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 0. 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 LA:616330582912361
INTERSTATE-ERA · STEEL · LONG-SPAN-RUN · TIED-CTRL · LOCAL-ADT · TRACE-LOAD · CAT-POOR
- INTERSTATE-ERA 1950–1979
- STEEL Steel
- LONG-SPAN-RUN 4 spans
- TIED-CTRL Tied control
- LOCAL-ADT Local ADT
- TRACE-LOAD Trace 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: Sligo Rd
The Sligo Rd bridge in West Feliciana, Louisiana carries Sligo Rd over GALES CREEK. It was built in 1975, making it 51 years old today. The structure is built primarily of steel and spans 4 sections, stretching 29.0 meters (95 feet) end to end. Daily traffic averages 130 vehicles, placing it in the lower-traffic tier of Louisiana bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 0/9, superstructure at 0/9, substructure at 0/9. The weakest component sits in critical 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 Sligo Rd compares
Age against the county: built in 1975, earlier than 73 of West Feliciana's 108 bridges with a recorded construction year (68%), against a county median build year of 1991. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Louisiana bridges with a recorded inventory load rating (12,682 of 12,698 rated).
Sligo Rd vs every rated Louisiana bridge
Inventory load rating (metric tons), FHWA NBI, this state
0 Top 99% higher than 1% of 12,682 bridges
rated Louisiana 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.
West Feliciana inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 108 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
- 1975
- Material
- Steel
- Number of Spans
- 4
- Structure Length
- 29.0 m (95 ft)
- Deck Width
- 6.2 m (20 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 130 vehicles/day
- Structure Number
- 616330582912361
Condition Analysis
- • The deck (driving surface) is in critical condition (0/9), with severe deterioration recorded on the inspecting agency's 0-9 scale.
- • The superstructure (beams and supports above the deck) rates critical at 0/9, with severe deterioration on the latest inspection.
- • At 0/9, the substructure (piers and abutments) is in critical shape, with severe wear recorded for this vintage.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
Sligo Rd 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 Sligo Rd against other structures in West Feliciana and across Louisiana. Louisiana 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 Sligo Rd?
Sligo Rd in West Feliciana, Louisiana has a deck rating of 0/9, superstructure rating of 0/9, and substructure rating of 0/9 on the FHWA's 0–9 scale.
How often is Sligo Rd inspected?
Sligo Rd'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 130 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. Sligo Rd 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 Sligo Rd?
Sligo Rd has an NBI inventory load rating of 0.0 metric tons.
Who is responsible for maintaining Sligo Rd?
Sligo Rd is owned and maintained by County Highway Agency.
How old is Sligo Rd and does age affect safety?
Sligo Rd was built in 1975, making it 51 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.