MAPLE DAM RD
Carrying MAPLE DAM RD over LITTLE BLACKWATER RIVER
2.16 MI S OF MD RTE 16, Dorchester, Maryland
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
MAPLE DAM RD in Dorchester, Maryland sits above 90% of rated Maryland bridges on inventory load rating (100 t), while its 1960 build year is earlier than 79% of Dorchester's recorded-year cohort (47 bridges).
MAPLE DAM RD in Dorchester, Maryland is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1960, it carries 1 rated component 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:200000D-0006030
INTERSTATE-ERA · STEEL · SHORT-BRIDGE · CULVERT-LED · LOCAL-ADT · HEAVY-LOAD · CAT-FAIR
- INTERSTATE-ERA 1950–1979
- STEEL Steel
- SHORT-BRIDGE 6.4 m
- CULVERT-LED Culvert-led
- LOCAL-ADT Local 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: MAPLE DAM RD
The MAPLE DAM RD bridge in Dorchester, Maryland carries MAPLE DAM RD over LITTLE BLACKWATER RIVER. It was built in 1960, making it 66 years old today. It was last reconstructed in 1975, extending its service life. The structure is built primarily of steel, stretching 6.4 meters (21 feet) end to end. Daily traffic averages 455 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 culvert at 6/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds.
How MAPLE DAM RD compares
Age against the county: built in 1960, earlier than 37 of Dorchester's 47 bridges with a recorded construction year (79%), against a county median build year of 1987. 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).
MAPLE DAM RD vs every rated Maryland bridge
Inventory load rating (metric tons), FHWA NBI, this state
100 Top 10% higher than 90% 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.
Dorchester inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 47 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
- 1960
- Last Reconstructed
- 1975
- Material
- Steel
- Structure Length
- 6.4 m (21 ft) 0
- Owner
- County Highway Agency
- Avg Daily Traffic
- 455 vehicles/day
- Structure Number
- 200000D-0006030
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 MAPLE DAM RD 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 MAPLE DAM RD against other structures in Dorchester 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 MAPLE DAM RD?
MAPLE DAM RD in Dorchester, Maryland on the FHWA's 0–9 scale.
How often is MAPLE DAM RD inspected?
MAPLE DAM RD'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 455 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. MAPLE DAM RD 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 MAPLE DAM RD?
MAPLE DAM RD has an NBI inventory load rating of 99.9 metric tons.
Who is responsible for maintaining MAPLE DAM RD?
MAPLE DAM RD is owned and maintained by County Highway Agency.
How old is MAPLE DAM RD and does age affect safety?
MAPLE DAM RD was built in 1960, making it 66 years old and last reconstructed in 1975.
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.