SR91 NS TPK 124.55
Carrying SR91 NS TPK 124.55 over DRAINAGE DITCH
0.9MI SOUTH OF SR-708, Martin, Florida
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
SR91 NS TPK 124.55 in Martin, Florida sits above 62% of rated Florida bridges on inventory load rating (39 t), while its 1956 build year is earlier than 92% of Martin's recorded-year cohort (129 bridges).
SR91 NS TPK 124.55 in Martin, Florida is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1956, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 6. The lowest applicable rating sets the federal condition category, so this Fair 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:890084
INTERSTATE-ERA · CONCRETE · MULTI-SPAN · CULVERT-LED · HEAVY-ADT · STANDARD-LOAD · CAT-FAIR
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- MULTI-SPAN 2 spans
- CULVERT-LED Culvert-led
- HEAVY-ADT Heavy ADT
- STANDARD-LOAD Standard load
- CAT-FAIR Fair
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: SR91 NS TPK 124.55
The SR91 NS TPK 124.55 bridge in Martin, Florida carries SR91 NS TPK 124.55 over DRAINAGE DITCH. It was built in 1956, making it 70 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 6.7 meters (22 feet) end to end. Daily traffic averages 52,700 vehicles, placing it in the heavily-trafficked tier of Florida bridges. It is owned and maintained by State Toll Authority.
The latest FHWA inspection records show culvert at 6/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds.
How SR91 NS TPK 124.55 compares
Age against the county: built in 1956, earlier than 119 of Martin's 129 bridges with a recorded construction year (92%), against a county median build year of 1986. 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).
SR91 NS TPK 124.55 vs every rated Florida bridge
Inventory load rating (metric tons), FHWA NBI, this state
39 Top 38% higher than 62% 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.
Martin inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 129 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
- 1956
- Material
- Concrete
- Number of Spans
- 2
- Structure Length
- 6.7 m (22 ft) 0
- Owner
- State Toll Authority
- Avg Daily Traffic
- 52,700 vehicles/day
- Structure Number
- 890084
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether SR91 NS TPK 124.55 is safe to cross today. Here is how to use it.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
- Compare SR91 NS TPK 124.55 against other structures in Martin 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 SR91 NS TPK 124.55?
SR91 NS TPK 124.55 in Martin, Florida on the FHWA's 0–9 scale.
How often is SR91 NS TPK 124.55 inspected?
SR91 NS TPK 124.55'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 52,700 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SR91 NS TPK 124.55 is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for SR91 NS TPK 124.55?
SR91 NS TPK 124.55 has an NBI inventory load rating of 39.4 metric tons.
Who is responsible for maintaining SR91 NS TPK 124.55?
SR91 NS TPK 124.55 is owned and maintained by State Toll Authority.
How old is SR91 NS TPK 124.55 and does age affect safety?
SR91 NS TPK 124.55 was built in 1956, making it 70 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.