SINGLETON DRIVE
Carrying SINGLETON DRIVE over TRIB OF PETER PAN RUN
EAST OF ADDISON WOODS RD, Frederick, Maryland
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: SINGLETON DRIVE
The SINGLETON DRIVE bridge in Frederick, Maryland carries SINGLETON DRIVE over TRIB OF PETER PAN RUN. It was built in 1999, making it 27 years old today. The structure is built primarily of concrete and spans 1 section, stretching 12.8 meters (42 feet) end to end. Daily traffic averages 600 vehicles, placing it in the lower-traffic tier of Maryland bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 58.5 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How SINGLETON DRIVE 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 How the historical reference is calculated.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
- 1999
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 12.8 m (42 ft)
- Deck Width
- 23.8 m (78 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 600 vehicles/day
- Structure Number
- 200000F-0730010
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.
How to read this record
This page shows what the last federal inspection recorded, not whether SINGLETON DRIVE 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 SINGLETON DRIVE 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 SINGLETON DRIVE?
SINGLETON DRIVE in Frederick, Maryland, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is SINGLETON DRIVE inspected?
SINGLETON DRIVE'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 600 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SINGLETON DRIVE is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for SINGLETON DRIVE?
SINGLETON DRIVE has an NBI inventory load rating of 58.5 metric tons.
Who is responsible for maintaining SINGLETON DRIVE?
SINGLETON DRIVE is owned and maintained by County Highway Agency.
How old is SINGLETON DRIVE and does age affect safety?
SINGLETON DRIVE was built in 1999, making it 27 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.