FHWA NBI 2024 Inspection record Public-domain dataset

SHADY GROVE RD WB

Carrying SHADY GROVE RD WB over CSXT RAILROAD

0.5 MI EAST OF MD 355, Montgomery, Maryland

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
77 t Inventory load rating

Bridge Snapshot: SHADY GROVE RD WB

The SHADY GROVE RD WB bridge in Montgomery, Maryland carries SHADY GROVE RD WB over CSXT RAILROAD. It was built in 1976, making it 50 years old today. The structure is built primarily of steel and spans 3 sections, stretching 55.5 meters (182 feet) end to end. Daily traffic averages 35,374 vehicles, placing it in the heavily-trafficked tier of Maryland bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 6/9, substructure 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 76.6 metric tons.

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

How SHADY GROVE RD WB compares

▲ 25.5
Load rating vs Maryland average (51.1 t)
Top 16%
Higher load rating than 84% of Maryland bridges
522
Bridges in Montgomery · 24 in Poor condition
SHADY GROVE RD WB 76.6 t
Maryland average 51.1 t

Live comparison across Maryland.

Historical Sufficiency Rating

PlainBridge-computed
57.4 / 100 - historical 50–79.9 band
Structural adequacy /55
45.0
Serviceability /30
11.0
Essentiality /15
2.4
Special reductions
−1.0

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 How the historical reference is calculated.

Condition Ratings

Deck
5/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
76.6 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1976
Material
Steel
Number of Spans
3
Structure Length
55.5 m (182 ft)
Deck Width
14.5 m (48 ft)
Owner
County Highway Agency
Avg Daily Traffic
35,374 vehicles/day
Structure Number
200000M-0191014

Condition Analysis

  • At 5/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

This page shows what the last federal inspection recorded, not whether SHADY GROVE RD WB 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 SHADY GROVE RD WB 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 SHADY GROVE RD WB?

SHADY GROVE RD WB in Montgomery, Maryland has a deck rating of 5/9, superstructure rating of 6/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is SHADY GROVE RD WB inspected?

SHADY GROVE RD WB'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 35,374 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SHADY GROVE RD WB 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 SHADY GROVE RD WB?

SHADY GROVE RD WB has an NBI inventory load rating of 76.6 metric tons.

Who is responsible for maintaining SHADY GROVE RD WB?

SHADY GROVE RD WB is owned and maintained by County Highway Agency.

How old is SHADY GROVE RD WB and does age affect safety?

SHADY GROVE RD WB was built in 1976, making it 50 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.