MD 355 SBR
Carrying MD 355 SBR over IS 495 OL
1.02 MILES EAST OF MD 187, Montgomery, Maryland
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: MD 355 SBR
The MD 355 SBR bridge in Montgomery, Maryland carries MD 355 SBR over IS 495 OL. It was built in 1960, making it 66 years old today. The structure is built primarily of steel continuous. Daily traffic averages 115,750 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 MD 355 SBR compares
Live comparison across Maryland.
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 How the historical reference is calculated.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
- 1960
- Material
- Steel Continuous
- Avg Daily Traffic
- 115,750 vehicles/day
- Structure Number
- 100000150118010
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 MD 355 SBR 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 MD 355 SBR against other structures in Montgomery 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 MD 355 SBR?
MD 355 SBR in Montgomery, Maryland on the FHWA's 0–9 scale.
How often is MD 355 SBR inspected?
MD 355 SBR'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 115,750 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. MD 355 SBR 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 MD 355 SBR?
An inventory load rating is not recorded for MD 355 SBR.
Who is responsible for maintaining MD 355 SBR?
Ownership is not specified for MD 355 SBR in the NBI.
How old is MD 355 SBR and does age affect safety?
MD 355 SBR was built in 1960, making it 66 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.