FHWA NBI 2024 Inspection record Public-domain dataset

THORNTON ROAD

Carrying THORNTON ROAD over TURKEY TRACK CREEK

2/3 MI W JEFF DAVIS DR, Caroline, Virginia

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Poor
30 t Inventory load rating Lower than 86% of rated Virginia bridges

THORNTON ROAD in Caroline, Virginia sits above 14% of rated Virginia bridges on inventory load rating (30 t), while its 1968 build year is earlier than 52% of Caroline's recorded-year cohort (107 bridges).

THORNTON ROAD in Caroline, Virginia is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1968, 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 VA:DAPFORAPH000002

INTERSTATE-ERA · STEEL · SINGLE-SPAN · DECK-LED · TRACE-ADT · STANDARD-LOAD · CAT-POOR

  • INTERSTATE-ERA 1950–1979
  • STEEL Steel
  • SINGLE-SPAN Single span
  • DECK-LED Deck-led
  • TRACE-ADT Trace ADT
  • STANDARD-LOAD Standard 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: THORNTON ROAD

The THORNTON ROAD bridge in Caroline, Virginia carries THORNTON ROAD over TURKEY TRACK CREEK. It was built in 1968, making it 58 years old today. It was last reconstructed in 1998, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 16.2 meters (53 feet) end to end. Daily traffic averages 20 vehicles, placing it in the lower-traffic tier of Virginia bridges. It is owned and maintained by NASA.

The latest FHWA inspection records show a deck rating of 4/9, superstructure at 6/9, substructure at 5/9. 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 THORNTON ROAD compares

▼ 16.8
Load rating vs Virginia average (46.6 t; 14,112 of 14,120 rated)
107
Bridges in Caroline · 5 in Poor condition

Age against the county: built in 1968, earlier than 56 of Caroline's 107 bridges with a recorded construction year (52%), against a county median build year of 1970. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.

THORNTON ROAD 29.8 t
Virginia average (14,112 of 14,120 rated) 46.6 t

Live comparison across Virginia bridges with a recorded inventory load rating (14,112 of 14,120 rated).

THORNTON ROAD vs every rated Virginia bridge

Inventory load rating (metric tons), FHWA NBI, this state

30 Top 86% higher than 14% of 14,112 bridges

rated Virginia 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

Deck
4/9
Poor (1–4)
Superstructure
6/9
Fair (5–6)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
29.8 t
NBI inventory level (metric tons)
Overall Condition
Poor

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.

Caroline inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 107 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
1968
Last Reconstructed
1998
Material
Steel
Number of Spans
1
Structure Length
16.2 m (53 ft)
Deck Width
8.0 m (26 ft)
Owner
NASA
Avg Daily Traffic
20 vehicles/day
Structure Number
DAPFORAPH000002

Condition Analysis

  • The deck (driving surface) is in poor condition (4/9), showing advanced deterioration on the inspecting agency's 0-9 scale.
  • The superstructure (beams and supports above the deck) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.

How to read this record

THORNTON 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 THORNTON ROAD against other structures in Caroline and across Virginia. Virginia 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 THORNTON ROAD?

THORNTON ROAD in Caroline, Virginia has a deck rating of 4/9, superstructure rating of 6/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is THORNTON ROAD inspected?

THORNTON 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 20 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. THORNTON 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 THORNTON ROAD?

THORNTON ROAD has an NBI inventory load rating of 29.8 metric tons.

Who is responsible for maintaining THORNTON ROAD?

THORNTON ROAD is owned and maintained by NASA.

How old is THORNTON ROAD and does age affect safety?

THORNTON ROAD was built in 1968, making it 58 years old and last reconstructed in 1998.

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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.

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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.