APPALACHIAN TRAIL
Carrying APPALACHIAN TRAIL over IS 70
0.02 M E OF WASH CO LINE, Frederick, Maryland
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: APPALACHIAN TRAIL
The APPALACHIAN TRAIL bridge in Frederick, Maryland carries APPALACHIAN TRAIL over IS 70. It was built in 1968, making it 58 years old today. The structure is built primarily of concrete continuous. Daily traffic averages 58,600 vehicles, placing it in the heavily-trafficked tier of Maryland bridges.
The latest FHWA inspection records show limited component ratings on file. The weakest component sits in unrated condition. None of this bridge's reported major components fall into the Poor condition range.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How APPALACHIAN TRAIL compares
Live comparison across Maryland.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1968
- Material
- Concrete Continuous
- Avg Daily Traffic
- 58,600 vehicles/day
- Structure Number
- 100000100132130
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 APPALACHIAN TRAIL 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 APPALACHIAN TRAIL against other structures in Frederick and across Maryland. Maryland 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 APPALACHIAN TRAIL?
APPALACHIAN TRAIL in Frederick, Maryland on the FHWA's 0–9 scale.
How often is APPALACHIAN TRAIL inspected?
APPALACHIAN TRAIL'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 58,600 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. APPALACHIAN TRAIL is currently shown as unrated condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for APPALACHIAN TRAIL?
An inventory load rating is not recorded for APPALACHIAN TRAIL.
Who is responsible for maintaining APPALACHIAN TRAIL?
Ownership is not specified for APPALACHIAN TRAIL in the NBI.
How old is APPALACHIAN TRAIL and does age affect safety?
APPALACHIAN TRAIL was built in 1968, making it 58 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.