FHWA NBI 2024 Inspection record Public-domain dataset

MD 86

Carrying MD 86 over BR OF GUNPOWDER FALLS

1.74 MI S OF PA LINE, Carroll, Maryland

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
25 t Inventory load rating

Bridge Snapshot: MD 86

The MD 86 bridge in Carroll, Maryland carries MD 86 over BR OF GUNPOWDER FALLS. It was built in 1972, making it 54 years old today. The structure is built primarily of steel, stretching 17.7 meters (58 feet) end to end. Daily traffic averages 3,442 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 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. Its NBI inventory load rating is 25.4 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How MD 86 compares

▼ 25.7
Load rating vs Maryland average (51.1 t)
Bottom 8%
Lower load rating than 92% of Maryland bridges
205
Bridges in Carroll · 11 in Poor condition
MD 86 25.4 t
Maryland average 51.1 t

Live comparison across Maryland.

Historical Sufficiency Rating

PlainBridge-computed
91.2 / 100 - historical 80–100 band
Structural adequacy /55
49.0
Serviceability /30
30.0
Essentiality /15
12.2
Special reductions
0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Culvert
6/9
Fair (5–6)
Inventory Load Rating
25.4 t
NBI inventory level (metric tons)
Overall Condition
Fair

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1972
Material
Steel
Structure Length
17.7 m (58 ft)
Owner
State Highway Agency
Avg Daily Traffic
3,442 vehicles/day
Structure Number
100000060059030

How to read this record

This page shows what the last federal inspection recorded, not whether MD 86 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 MD 86 against other structures in Carroll 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 MD 86?

MD 86 in Carroll, Maryland on the FHWA's 0–9 scale.

How often is MD 86 inspected?

MD 86'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 3,442 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. MD 86 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 MD 86?

MD 86 has an NBI inventory load rating of 25.4 metric tons.

Who is responsible for maintaining MD 86?

MD 86 is owned and maintained by State Highway Agency.

How old is MD 86 and does age affect safety?

MD 86 was built in 1972, making it 54 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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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.