MAHONING AVE
Carrying MAHONING AVE over SHENANGO R, NCI RR
MAHONING AVE. VIADUCT, Lawrence, Pennsylvania
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: MAHONING AVE
The MAHONING AVE bridge in Lawrence, Pennsylvania carries MAHONING AVE over SHENANGO R, NCI RR. It was built in 1923, making it 103 years old today. It was last reconstructed in 2017, extending its service life. The structure is built primarily of steel and spans 3 sections, stretching 364.2 meters (1195 feet) end to end. Daily traffic averages 4,317 vehicles, placing it in the moderately-trafficked tier of Pennsylvania bridges. It is owned and maintained by Railroad.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 5/9, substructure at 5/9. 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 2.7 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How MAHONING AVE 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 How the historical reference is calculated.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
- 1923
- Last Reconstructed
- 2017
- Material
- Steel
- Number of Spans
- 3
- Structure Length
- 364.2 m (1195 ft)
- Deck Width
- 9.8 m (32 ft)
- Owner
- Railroad
- Avg Daily Traffic
- 4,317 vehicles/day
- Structure Number
- 000000000022183
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • The superstructure (beams and supports above the deck) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
How to read this record
This page shows what the last federal inspection recorded, not whether MAHONING AVE 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 MAHONING AVE against other structures in Lawrence 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 MAHONING AVE?
MAHONING AVE in Lawrence, Pennsylvania has a deck rating of 6/9, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is MAHONING AVE inspected?
MAHONING AVE'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 4,317 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. MAHONING AVE 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 MAHONING AVE?
MAHONING AVE has an NBI inventory load rating of 2.7 metric tons.
Who is responsible for maintaining MAHONING AVE?
MAHONING AVE is owned and maintained by Railroad.
How old is MAHONING AVE and does age affect safety?
MAHONING AVE was built in 1923, making it 103 years old and last reconstructed in 2017.
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.