SOUTH NEGLEY AV
Carrying SOUTH NEGLEY AV over N-S RR & PAT EBUSWAY
102 S Negley Ave Bridge, Allegheny, Pennsylvania
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
SOUTH NEGLEY AV in Allegheny, Pennsylvania sits above 40% of rated Pennsylvania bridges on inventory load rating (35 t), while its 1924 build year is earlier than 91% of Allegheny's recorded-year cohort (1,294 bridges).
SOUTH NEGLEY AV in Allegheny, Pennsylvania is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1924, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure PA:000000000002453
PRE-1950 · STEEL · SINGLE-SPAN · SUPER-LED · HEAVY-ADT · STANDARD-LOAD · CAT-POOR
- PRE-1950 Pre-1950
- STEEL Steel
- SINGLE-SPAN Single span
- SUPER-LED Superstructure-led
- HEAVY-ADT Heavy ADT
- STANDARD-LOAD Standard load
- CAT-POOR Poor
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: SOUTH NEGLEY AV
The SOUTH NEGLEY AV bridge in Allegheny, Pennsylvania carries SOUTH NEGLEY AV over N-S RR & PAT EBUSWAY. It was built in 1924, making it 102 years old today. It was last reconstructed in 1973, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 32.3 meters (106 feet) end to end. Daily traffic averages 15,000 vehicles, placing it in the heavily-trafficked tier of Pennsylvania bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 5/9, superstructure at 4/9, substructure at 6/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed.
How SOUTH NEGLEY AV compares
Age against the county: built in 1924, earlier than 1,181 of Allegheny's 1,294 bridges with a recorded construction year (91%), against a county median build year of 1968. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Pennsylvania bridges with a recorded inventory load rating (23,297 of 23,299 rated).
SOUTH NEGLEY AV vs every rated Pennsylvania bridge
Inventory load rating (metric tons), FHWA NBI, this state
35 Top 60% higher than 40% of 23,297 bridges
rated Pennsylvania bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Allegheny inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 1,294 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1924
- Last Reconstructed
- 1973
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 32.3 m (106 ft)
- Deck Width
- 15.2 m (50 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 15,000 vehicles/day
- Structure Number
- 000000000002453
Condition Analysis
- • The deck (driving surface) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
- • The superstructure (beams and supports above the deck) rates poor at 4/9, with advanced deterioration recorded on the latest inspection.
- • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
SOUTH NEGLEY AV is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare SOUTH NEGLEY AV against other structures in Allegheny 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 SOUTH NEGLEY AV?
SOUTH NEGLEY AV in Allegheny, Pennsylvania has a deck rating of 5/9, superstructure rating of 4/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is SOUTH NEGLEY AV inspected?
SOUTH NEGLEY AV'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 15,000 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SOUTH NEGLEY AV is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for SOUTH NEGLEY AV?
SOUTH NEGLEY AV has an NBI inventory load rating of 34.5 metric tons.
Who is responsible for maintaining SOUTH NEGLEY AV?
SOUTH NEGLEY AV is owned and maintained by City/Municipal Highway Agency.
How old is SOUTH NEGLEY AV and does age affect safety?
SOUTH NEGLEY AV was built in 1924, making it 102 years old and last reconstructed in 1973.
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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.