IS 495 SE RAMP
Carrying IS 495 SE RAMP over CLARA BARTON PKY & CANAL
0.39 MI E OF VA LINE, Montgomery, Maryland
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
IS 495 SE RAMP in Montgomery, Maryland is rated Fair in the FHWA's 2024 National Bridge Inventory.
Built in 1963, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 6. The lowest applicable rating sets the federal condition category, so this Fair result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure MD:100000150142010
INTERSTATE-ERA · STEEL · MULTI-SPAN · TIED-CTRL · ARTERIAL-ADT · HEAVY-LOAD · CAT-FAIR
- INTERSTATE-ERA 1950–1979
- STEEL Steel
- MULTI-SPAN 3 spans
- TIED-CTRL Tied control
- ARTERIAL-ADT Arterial ADT
- HEAVY-LOAD Heavy load
- CAT-FAIR Fair
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: IS 495 SE RAMP
The IS 495 SE RAMP bridge in Montgomery, Maryland carries IS 495 SE RAMP over CLARA BARTON PKY & CANAL. It was built in 1963, making it 63 years old today. It was last reconstructed in 1990, extending its service life. The structure is built primarily of steel and spans 3 sections, stretching 133.8 meters (439 feet) end to end. Daily traffic averages 7,021 vehicles, placing it in the moderately-trafficked tier of Maryland bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 6/9, substructure at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range.
How IS 495 SE RAMP compares
Age against the county: built in 1963, earlier than 355 of Montgomery's 515 bridges with a recorded construction year (69%), against a county median build year of 1982. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Maryland bridges with a recorded inventory load rating (5,479 of 5,484 rated).
IS 495 SE RAMP vs every rated Maryland bridge
Inventory load rating (metric tons), FHWA NBI, this state
54 Top 33% higher than 67% of 5,479 bridges
rated Maryland bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Montgomery inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 515 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1963
- Last Reconstructed
- 1990
- Material
- Steel
- Number of Spans
- 3
- Structure Length
- 133.8 m (439 ft)
- Deck Width
- 8.6 m (28 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 7,021 vehicles/day
- Structure Number
- 100000150142010
Condition Analysis
- • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
- • 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 (6/9), with minor deterioration that may require routine maintenance.
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 495 SE RAMP 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 495 SE RAMP 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 495 SE RAMP?
IS 495 SE RAMP in Montgomery, Maryland has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is IS 495 SE RAMP inspected?
IS 495 SE RAMP'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 7,021 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. IS 495 SE RAMP 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 IS 495 SE RAMP?
IS 495 SE RAMP has an NBI inventory load rating of 54.0 metric tons.
Who is responsible for maintaining IS 495 SE RAMP?
IS 495 SE RAMP is owned and maintained by State Highway Agency.
How old is IS 495 SE RAMP and does age affect safety?
IS 495 SE RAMP was built in 1963, making it 63 years old and last reconstructed in 1990.
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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.