SEIDERSVILLE ROAD
Carrying SEIDERSVILLE ROAD over SAUCON CREEK
0.2 MILES WEST OF PA 412, Northampton, Pennsylvania
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: SEIDERSVILLE ROAD
The SEIDERSVILLE ROAD bridge in Northampton, Pennsylvania carries SEIDERSVILLE ROAD over SAUCON CREEK. It was built in 1936, making it 90 years old today. The structure is built primarily of steel and spans 1 section, stretching 41.1 meters (135 feet) end to end. Average daily traffic is not reported for this structure. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 4/9, superstructure at 1/9, substructure at 5/9. The weakest component sits in critical condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How SEIDERSVILLE ROAD 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 How the historical reference is calculated.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
- 1936
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 41.1 m (135 ft)
- Deck Width
- 6.3 m (21 ft)
- Owner
- County Highway Agency
- Structure Number
- 000000000028904
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
- • The superstructure (beams and supports above the deck) is in critical condition (1/9), with severe deterioration requiring urgent attention.
- • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
How to read this record
SEIDERSVILLE ROAD 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 SEIDERSVILLE ROAD against other structures in Northampton 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 SEIDERSVILLE ROAD?
SEIDERSVILLE ROAD in Northampton, Pennsylvania has a deck rating of 4/9, superstructure rating of 1/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is SEIDERSVILLE ROAD inspected?
SEIDERSVILLE ROAD's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SEIDERSVILLE ROAD 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 SEIDERSVILLE ROAD?
An inventory load rating is not recorded for SEIDERSVILLE ROAD.
Who is responsible for maintaining SEIDERSVILLE ROAD?
SEIDERSVILLE ROAD is owned and maintained by County Highway Agency.
How old is SEIDERSVILLE ROAD and does age affect safety?
SEIDERSVILLE ROAD was built in 1936, making it 90 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.