PA TPK (I-276)
Carrying PA TPK (I-276) over TRIB. DIAMOND RUN
SOUTH OF NORRISTOWN, Montgomery, Pennsylvania
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: PA TPK (I-276)
The PA TPK (I-276) bridge in Montgomery, Pennsylvania carries PA TPK (I-276) over TRIB. DIAMOND RUN. It was built in 1954, making it 72 years old today. It was last reconstructed in 2008, extending its service life. The structure is built primarily of concrete and spans 1 section, stretching 7.3 meters (24 feet) end to end. Daily traffic averages 65,138 vehicles, placing it in the heavily-trafficked tier of Pennsylvania bridges. It is owned and maintained by State Toll Authority.
The latest FHWA inspection records show culvert at 6/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 35.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How PA TPK (I-276) 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 How the historical reference is calculated.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
- 1954
- Last Reconstructed
- 2008
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 7.3 m (24 ft)
- Owner
- State Toll Authority
- Avg Daily Traffic
- 65,138 vehicles/day
- Structure Number
- 000000000028152
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 PA TPK (I-276) 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 PA TPK (I-276) against other structures in Montgomery 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 PA TPK (I-276)?
PA TPK (I-276) in Montgomery, Pennsylvania on the FHWA's 0–9 scale.
How often is PA TPK (I-276) inspected?
PA TPK (I-276)'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 65,138 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. PA TPK (I-276) 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 PA TPK (I-276)?
PA TPK (I-276) has an NBI inventory load rating of 35.4 metric tons.
Who is responsible for maintaining PA TPK (I-276)?
PA TPK (I-276) is owned and maintained by State Toll Authority.
How old is PA TPK (I-276) and does age affect safety?
PA TPK (I-276) was built in 1954, making it 72 years old and last reconstructed in 2008.
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.