FHWA NBI 2024 Inspection record Public-domain dataset

KIRBY STREET

Carrying KIRBY STREET over FLAT BRANCH TRIB B.

160' South of Cabbel Dr., Manassas Park city, Virginia

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
90 t Inventory load rating

Bridge Snapshot: KIRBY STREET

The KIRBY STREET bridge in Manassas Park city, Virginia carries KIRBY STREET over FLAT BRANCH TRIB B.. It was built in 2002, making it 24 years old today. The structure is built primarily of steel and spans 2 sections, stretching 7.8 meters (26 feet) end to end. Daily traffic averages 1,400 vehicles, placing it in the moderately-trafficked tier of Virginia bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show culvert 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 89.8 metric tons.

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

How KIRBY STREET compares

▲ 43.8
Load rating vs Virginia average (46.0 t)
Top 4%
Higher load rating than 96% of Virginia bridges
3
Bridges in Manassas Park city · 1 in Poor condition
KIRBY STREET 89.8 t
Virginia average 46.0 t

Live comparison across Virginia.

Historical Sufficiency Rating

PlainBridge-computed
100.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
15.0
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 How the historical reference is calculated.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

Culvert
6/9
Fair (5–6)
Inventory Load Rating
89.8 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
2002
Material
Steel
Number of Spans
2
Structure Length
7.8 m (26 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
1,400 vehicles/day
Structure Number
000000000031135

How to read this record

This page shows what the last federal inspection recorded, not whether KIRBY STREET 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 KIRBY STREET against other structures in Manassas Park city 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 KIRBY STREET?

KIRBY STREET in Manassas Park city, Virginia on the FHWA's 0–9 scale.

How often is KIRBY STREET inspected?

KIRBY STREET'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 1,400 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. KIRBY STREET 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 KIRBY STREET?

KIRBY STREET has an NBI inventory load rating of 89.8 metric tons.

Who is responsible for maintaining KIRBY STREET?

KIRBY STREET is owned and maintained by City/Municipal Highway Agency.

How old is KIRBY STREET and does age affect safety?

KIRBY STREET was built in 2002, making it 24 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.