FHWA NBI 2024 Inspection record Public-domain dataset

I-81 NBL

Carrying I-81 NBL over PUGHS RUN

3.24 TO 42 - 4.90 TO 651, Shenandoah, Virginia

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
53 t Inventory load rating

Bridge Snapshot: I-81 NBL

The I-81 NBL bridge in Shenandoah, Virginia carries I-81 NBL over PUGHS RUN. It was built in 1966, making it 60 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 41.1 meters (135 feet) end to end. Daily traffic averages 23,066 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 7/9, superstructure at 6/9, substructure at 5/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 52.6 metric tons.

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

How I-81 NBL compares

▲ 6.6
Load rating vs Virginia average (46.0 t)
Top 34%
Higher load rating than 66% of Virginia bridges
213
Bridges in Shenandoah · 1 in Poor condition
I-81 NBL 52.6 t
Virginia average 46.0 t

Live comparison across Virginia.

Historical Sufficiency Rating

PlainBridge-computed
82.5 / 100 - historical 80–100 band
Structural adequacy /55
45.0
Serviceability /30
29.0
Essentiality /15
10.5
Special reductions
−2.0

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 How the historical reference is calculated.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

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

Structural Details

Year Built
1966
Material
Concrete
Number of Spans
3
Structure Length
41.1 m (135 ft)
Deck Width
13.4 m (44 ft)
Owner
State Highway Agency
Avg Daily Traffic
23,066 vehicles/day
Structure Number
000000000017025

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 fair at 6/9, minor deterioration that routine maintenance should address.
  • The substructure (piers and abutments) rates fair at 5/9, minor deterioration that routine maintenance should address.

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 Shenandoah 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 Shenandoah, Virginia has a deck rating of 7/9, superstructure rating of 6/9, and substructure rating of 5/9 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 23,066 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 52.6 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 1966, making it 60 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.