FHWA NBI 2024 Inspection record Public-domain dataset

I-81 NBL

Carrying I-81 NBL over NS RAILWAY

1.06 RT 11 - 1.55 RT 253, Rockingham, Virginia

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
45 t Inventory load rating

Bridge Snapshot: I-81 NBL

The I-81 NBL bridge in Rockingham, Virginia carries I-81 NBL over NS RAILWAY. It was built in 1959, making it 67 years old today. It was last reconstructed in 1983, extending its service life. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 61.5 meters (202 feet) end to end. Daily traffic averages 28,521 vehicles, placing it in the heavily-trafficked tier of Virginia bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 5/9, 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 44.5 metric tons.

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

How I-81 NBL compares

▼ 1.5
Load rating vs Virginia average (46.0 t)
Top 47%
Higher load rating than 53% of Virginia bridges
288
Bridges in Rockingham · 9 in Poor condition
I-81 NBL 44.5 t
Virginia average 46.0 t

Live comparison across Virginia.

Historical Sufficiency Rating

PlainBridge-computed
78.8 / 100 - historical 50–79.9 band
Structural adequacy /55
45.0
Serviceability /30
25.0
Essentiality /15
9.8
Special reductions
−1.0

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 How the historical reference is calculated.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
6/9
Fair (5–6)
Superstructure
5/9
Fair (5–6)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
44.5 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1959
Last Reconstructed
1983
Material
Prestressed Concrete
Number of Spans
3
Structure Length
61.5 m (202 ft)
Deck Width
13.4 m (44 ft)
Owner
State Highway Agency
Avg Daily Traffic
28,521 vehicles/day
Structure Number
000000000020451

Condition Analysis

  • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • 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 I-81 NBL 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 I-81 NBL against other structures in Rockingham 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 I-81 NBL?

I-81 NBL in Rockingham, Virginia has a deck rating of 6/9, superstructure rating of 5/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is I-81 NBL inspected?

I-81 NBL'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 28,521 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. I-81 NBL 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 I-81 NBL?

I-81 NBL has an NBI inventory load rating of 44.5 metric tons.

Who is responsible for maintaining I-81 NBL?

I-81 NBL is owned and maintained by State Highway Agency.

How old is I-81 NBL and does age affect safety?

I-81 NBL was built in 1959, making it 67 years old and last reconstructed in 1983.

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.