Lake Harney Road
Carrying Lake Harney Road over Underhill Slough
4 Mi South of Maytown Rd., Volusia, Florida
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
Lake Harney Road in Volusia, Florida is rated Poor in the FHWA's 2024 National Bridge Inventory.
Built in 1948, it carries 1 rated component 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 FL:794050
PRE-1950 · CONCRETE · LONG-SPAN-RUN · CULVERT-LED · LOCAL-ADT · HEAVY-LOAD · CAT-POOR
- PRE-1950 Pre-1950
- CONCRETE Concrete
- LONG-SPAN-RUN 4 spans
- CULVERT-LED Culvert-led
- LOCAL-ADT Local ADT
- HEAVY-LOAD Heavy 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: Lake Harney Road
The Lake Harney Road bridge in Volusia, Florida carries Lake Harney Road over Underhill Slough. It was built in 1948, making it 78 years old today. The structure is built primarily of concrete and spans 4 sections, stretching 11.9 meters (39 feet) end to end. Daily traffic averages 130 vehicles, placing it in the lower-traffic tier of Florida bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show culvert 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.
How Lake Harney Road compares
Age against the county: built in 1948, earlier than 222 of Volusia's 238 bridges with a recorded construction year (93%), against a county median build year of 1987. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Florida bridges with a recorded inventory load rating (13,032 of 13,036 rated).
Lake Harney Road vs every rated Florida bridge
Inventory load rating (metric tons), FHWA NBI, this state
58 Top 8% higher than 92% of 13,032 bridges
rated Florida 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.
Volusia inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 238 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
- 1948
- Material
- Concrete
- Number of Spans
- 4
- Structure Length
- 11.9 m (39 ft) 0
- Owner
- County Highway Agency
- Avg Daily Traffic
- 130 vehicles/day
- Structure Number
- 794050
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
Lake Harney 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 Lake Harney Road against other structures in Volusia and across Florida. Florida 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 Lake Harney Road?
Lake Harney Road in Volusia, Florida on the FHWA's 0–9 scale.
How often is Lake Harney Road inspected?
Lake Harney 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 130 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. Lake Harney 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 Lake Harney Road?
Lake Harney Road has an NBI inventory load rating of 57.5 metric tons.
Who is responsible for maintaining Lake Harney Road?
Lake Harney Road is owned and maintained by County Highway Agency.
How old is Lake Harney Road and does age affect safety?
Lake Harney Road was built in 1948, making it 78 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.