IS 270 NBR
Carrying IS 270 NBR over MD 109 & LI BENNETT CR
0.52 MI E OF FREDERICK CO, Montgomery, Maryland
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: IS 270 NBR
The IS 270 NBR bridge in Montgomery, Maryland carries IS 270 NBR over MD 109 & LI BENNETT CR. It was built in 1951, making it 75 years old today. The structure is built primarily of steel continuous. Daily traffic averages 7,232 vehicles, placing it in the moderately-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 IS 270 NBR 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 How the historical reference is calculated.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
- 1951
- Material
- Steel Continuous
- Avg Daily Traffic
- 7,232 vehicles/day
- Structure Number
- 100000150036011
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 IS 270 NBR 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 IS 270 NBR 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 IS 270 NBR?
IS 270 NBR in Montgomery, Maryland on the FHWA's 0–9 scale.
How often is IS 270 NBR inspected?
IS 270 NBR'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 7,232 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. IS 270 NBR 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 IS 270 NBR?
An inventory load rating is not recorded for IS 270 NBR.
Who is responsible for maintaining IS 270 NBR?
Ownership is not specified for IS 270 NBR in the NBI.
How old is IS 270 NBR and does age affect safety?
IS 270 NBR was built in 1951, making it 75 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.