ST JOHNS LANE
Carrying ST JOHNS LANE over IS 70
0.8 MI W OF US 29, Howard, Maryland
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: ST JOHNS LANE
The ST JOHNS LANE bridge in Howard, Maryland carries ST JOHNS LANE over IS 70. It was built in 1966, making it 60 years old today. The structure is built primarily of steel. Daily traffic averages 83,620 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. All reported major components score above the Poor range.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How ST JOHNS LANE 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 How the historical reference is calculated.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
- 1966
- Material
- Steel
- Avg Daily Traffic
- 83,620 vehicles/day
- Structure Number
- 100000130040010
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 ST JOHNS LANE 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 ST JOHNS LANE against other structures in Howard 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 ST JOHNS LANE?
ST JOHNS LANE in Howard, Maryland on the FHWA's 0–9 scale.
How often is ST JOHNS LANE inspected?
ST JOHNS LANE'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 83,620 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. ST JOHNS LANE 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 ST JOHNS LANE?
An inventory load rating is not recorded for ST JOHNS LANE.
Who is responsible for maintaining ST JOHNS LANE?
Ownership is not specified for ST JOHNS LANE in the NBI.
How old is ST JOHNS LANE and does age affect safety?
ST JOHNS LANE was built in 1966, making it 60 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.