SINCLAIR LANE
Carrying SINCLAIR LANE over HERRING RUN
1 MI E ERDMAN AVE, Baltimore city, Maryland
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: SINCLAIR LANE
The SINCLAIR LANE bridge in Baltimore city, Maryland carries SINCLAIR LANE over HERRING RUN. It was built in 1958, making it 68 years old today. It was last reconstructed in 1985, extending its service life. The structure is built primarily of steel and spans 2 sections, stretching 41.5 meters (136 feet) end to end. Daily traffic averages 37,800 vehicles, placing it in the heavily-trafficked tier of Maryland bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 6/9, substructure at 5/9. 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 64.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How SINCLAIR 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 How the historical reference is calculated.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
- 1958
- Last Reconstructed
- 1985
- Material
- Steel
- Number of Spans
- 2
- Structure Length
- 41.5 m (136 ft)
- Deck Width
- 17.3 m (57 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 37,800 vehicles/day
- Structure Number
- 200000BC4212010
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • The superstructure (beams and supports above the deck) rates fair at 6/9, minor deterioration that routine maintenance should address.
- • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
How to read this record
This page shows what the last federal inspection recorded, not whether SINCLAIR 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 SINCLAIR LANE against other structures in Baltimore city 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 SINCLAIR LANE?
SINCLAIR LANE in Baltimore city, Maryland has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is SINCLAIR LANE inspected?
SINCLAIR 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 37,800 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SINCLAIR LANE 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 SINCLAIR LANE?
SINCLAIR LANE has an NBI inventory load rating of 64.4 metric tons.
Who is responsible for maintaining SINCLAIR LANE?
SINCLAIR LANE is owned and maintained by City/Municipal Highway Agency.
How old is SINCLAIR LANE and does age affect safety?
SINCLAIR LANE was built in 1958, making it 68 years old and last reconstructed in 1985.
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.