LITTLE TONOLOWAY A
Carrying LITTLE TONOLOWAY A over C&O CANAL
0.2 miles from Little Ton, Washington, Maryland
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
LITTLE TONOLOWAY A in Washington, Maryland sits above 74% of rated Maryland bridges on inventory load rating (59 t), while its 1969 build year is earlier than 26% of Washington's recorded-year cohort (300 bridges).
LITTLE TONOLOWAY A in Washington, Maryland is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1969, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good 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:3100011P0000000
INTERSTATE-ERA · STEEL · SINGLE-SPAN · SUB-LED · LOCAL-ADT · HEAVY-LOAD · CAT-GOOD
- INTERSTATE-ERA 1950–1979
- STEEL Steel
- SINGLE-SPAN Single span
- SUB-LED Substructure-led
- LOCAL-ADT Local ADT
- HEAVY-LOAD Heavy load
- CAT-GOOD Good
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: LITTLE TONOLOWAY A
The LITTLE TONOLOWAY A bridge in Washington, Maryland carries LITTLE TONOLOWAY A over C&O CANAL. It was built in 1969, making it 57 years old today. It was last reconstructed in 2020, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 12.8 meters (42 feet) end to end. Daily traffic averages 72 vehicles, placing it in the lower-traffic tier of Maryland bridges. It is owned and maintained by National Park Service.
The latest FHWA inspection records show a deck rating of 8/9, superstructure at 8/9, substructure at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.
How LITTLE TONOLOWAY A compares
Age against the county: built in 1969, earlier than 79 of Washington's 300 bridges with a recorded construction year (26%), against a county median build year of 1965. This is one of the newer structures in its county.
Live comparison across Maryland bridges with a recorded inventory load rating (5,479 of 5,484 rated).
LITTLE TONOLOWAY A vs every rated Maryland bridge
Inventory load rating (metric tons), FHWA NBI, this state
59 Top 26% higher than 74% 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.
Washington inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 300 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
- 1969
- Last Reconstructed
- 2020
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 12.8 m (42 ft)
- Deck Width
- 3.7 m (12 ft)
- Owner
- National Park Service
- Avg Daily Traffic
- 72 vehicles/day
- Structure Number
- 3100011P0000000
Condition Analysis
- • The deck (driving surface) is in good condition (8/9), showing no significant deterioration.
- • The superstructure (beams and supports above the deck) rates good at 8/9, with no significant deterioration on file.
- • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.
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 LITTLE TONOLOWAY A 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 LITTLE TONOLOWAY A against other structures in Washington 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 LITTLE TONOLOWAY A?
LITTLE TONOLOWAY A in Washington, Maryland has a deck rating of 8/9, superstructure rating of 8/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is LITTLE TONOLOWAY A inspected?
LITTLE TONOLOWAY A'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 72 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. LITTLE TONOLOWAY A 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 LITTLE TONOLOWAY A?
LITTLE TONOLOWAY A has an NBI inventory load rating of 59.0 metric tons.
Who is responsible for maintaining LITTLE TONOLOWAY A?
LITTLE TONOLOWAY A is owned and maintained by National Park Service.
How old is LITTLE TONOLOWAY A and does age affect safety?
LITTLE TONOLOWAY A was built in 1969, making it 57 years old and last reconstructed in 2020.
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.