FHWA NBI 2024 Inspection record Public-domain dataset

MD 97

Carrying MD 97 over SILVER RUN

2.31 MI S OF PA LINE, Carroll, Maryland

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
100 t Inventory load rating

Bridge Snapshot: MD 97

The MD 97 bridge in Carroll, Maryland carries MD 97 over SILVER RUN. It was built in 1987, making it 39 years old today. The structure is built primarily of steel, stretching 18.0 meters (59 feet) end to end. Daily traffic averages 10,250 vehicles, placing it in the heavily-trafficked tier of Maryland bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show culvert at 5/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 99.9 metric tons.

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

How MD 97 compares

▲ 48.8
Load rating vs Maryland average (51.1 t)
Top 12%
Higher load rating than 88% of Maryland bridges
205
Bridges in Carroll · 11 in Poor condition
MD 97 99.9 t
Maryland average 51.1 t

Live comparison across Maryland.

Historical Sufficiency Rating

PlainBridge-computed
86.2 / 100 - historical 80–100 band
Structural adequacy /55
45.0
Serviceability /30
29.0
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 How the historical reference is calculated.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
5/9
Fair (5–6)
Inventory Load Rating
99.9 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1987
Material
Steel
Structure Length
18.0 m (59 ft)
Owner
State Highway Agency
Avg Daily Traffic
10,250 vehicles/day
Structure Number
100000060030030

How to read this record

This page shows what the last federal inspection recorded, not whether MD 97 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 97 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 97?

MD 97 in Carroll, Maryland on the FHWA's 0–9 scale.

How often is MD 97 inspected?

MD 97'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 10,250 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. MD 97 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 97?

MD 97 has an NBI inventory load rating of 99.9 metric tons.

Who is responsible for maintaining MD 97?

MD 97 is owned and maintained by State Highway Agency.

How old is MD 97 and does age affect safety?

MD 97 was built in 1987, making it 39 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.