FHWA NBI 2024 Inspection record Public-domain dataset

NBL Rte. 460

Carrying NBL Rte. 460 over S. Fork Roanoke River

1.94-Rke Co; 10.97-81, Montgomery, Virginia

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
47 t Inventory load rating

Bridge Snapshot: NBL Rte. 460

The NBL Rte. 460 bridge in Montgomery, Virginia carries NBL Rte. 460 over S. Fork Roanoke River. It was built in 1950, making it 76 years old today. The structure is built primarily of steel continuous and spans 5 sections, stretching 79.5 meters (261 feet) end to end. Daily traffic averages 4,894 vehicles, placing it in the moderately-trafficked tier of Virginia bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 8/9, substructure at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 47.2 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How NBL Rte. 460 compares

▲ 1.2
Load rating vs Virginia average (46.0 t)
Top 43%
Higher load rating than 57% of Virginia bridges
196
Bridges in Montgomery · 5 in Poor condition
NBL Rte. 460 47.2 t
Virginia average 46.0 t

Live comparison across Virginia.

Historical Sufficiency Rating

PlainBridge-computed
82.4 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
13.0
Essentiality /15
14.4
Special reductions
0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
7/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
47.2 t
NBI inventory level (metric tons)
Overall Condition
Fair

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1950
Material
Steel Continuous
Number of Spans
5
Structure Length
79.5 m (261 ft)
Deck Width
9.8 m (32 ft)
Owner
State Highway Agency
Avg Daily Traffic
4,894 vehicles/day
Structure Number
000000000012120

Condition Analysis

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • The superstructure (beams and supports above the deck) rates good at 8/9, with no significant deterioration on file.
  • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

This page shows what the last federal inspection recorded, not whether NBL Rte. 460 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 NBL Rte. 460 against other structures in Montgomery 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 NBL Rte. 460?

NBL Rte. 460 in Montgomery, Virginia has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is NBL Rte. 460 inspected?

NBL Rte. 460'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 4,894 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. NBL Rte. 460 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 NBL Rte. 460?

NBL Rte. 460 has an NBI inventory load rating of 47.2 metric tons.

Who is responsible for maintaining NBL Rte. 460?

NBL Rte. 460 is owned and maintained by State Highway Agency.

How old is NBL Rte. 460 and does age affect safety?

NBL Rte. 460 was built in 1950, making it 76 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.

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

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.