Card Sound Road
Carrying Card Sound Road over Mosquito Creek
3.8 Miles N of CR905, Monroe, Florida
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: Card Sound Road
The Card Sound Road bridge in Monroe, Florida carries Card Sound Road over Mosquito Creek. It was built in 1969, making it 57 years old today. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 30.8 meters (101 feet) end to end. Daily traffic averages 3,182 vehicles, placing it in the moderately-trafficked tier of Florida bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 3/9, superstructure at 3/9, substructure at 8/9. 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 10.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How Card Sound Road compares
Live comparison across Florida.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1969
- Material
- Prestressed Concrete
- Number of Spans
- 3
- Structure Length
- 30.8 m (101 ft)
- Deck Width
- 11.6 m (38 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 3,182 vehicles/day
- Structure Number
- 904984
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates poor at 3/9, advanced deterioration that should be prioritized for repair.
- • At 3/9, the superstructure (beams and supports above the deck) is in poor shape, with advanced wear flagged for priority repair.
- • The substructure (piers and abutments) rates good at 8/9, with no significant deterioration on file.
How to read this record
Card Sound 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 Card Sound Road against other structures in Monroe 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 Card Sound Road?
Card Sound Road in Monroe, Florida has a deck rating of 3/9, superstructure rating of 3/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.
How often is Card Sound Road inspected?
Card Sound 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 3,182 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. Card Sound 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 Card Sound Road?
Card Sound Road has an NBI inventory load rating of 10.4 metric tons.
Who is responsible for maintaining Card Sound Road?
Card Sound Road is owned and maintained by County Highway Agency.
How old is Card Sound Road and does age affect safety?
Card Sound Road was built in 1969, making it 57 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.
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.