SR 4002
Carrying SR 4002 over Trib to ALLEGHENY RIVER
0.2 Mi E SR 4001 Inter., Armstrong, Pennsylvania
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: SR 4002
The SR 4002 bridge in Armstrong, Pennsylvania carries SR 4002 over Trib to ALLEGHENY RIVER. It was built in 2015, making it 11 years old today. The structure is built primarily of concrete and spans 1 section, stretching 7.6 meters (25 feet) end to end. Daily traffic averages 612 vehicles, placing it in the lower-traffic tier of Pennsylvania bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 36.3 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How SR 4002 compares
Live comparison across Pennsylvania.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 2015
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 7.6 m (25 ft)
- Deck Width
- 9.6 m (31 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 612 vehicles/day
- Structure Number
- 000000000052628
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether SR 4002 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 SR 4002 against other structures in Armstrong and across Pennsylvania. Pennsylvania 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 SR 4002?
SR 4002 in Armstrong, Pennsylvania on the FHWA's 0–9 scale.
How often is SR 4002 inspected?
SR 4002'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 612 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SR 4002 is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for SR 4002?
SR 4002 has an NBI inventory load rating of 36.3 metric tons.
Who is responsible for maintaining SR 4002?
SR 4002 is owned and maintained by State Highway Agency.
How old is SR 4002 and does age affect safety?
SR 4002 was built in 2015, making it 11 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.
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.