FHWA NBI 2024 Inspection record Public-domain dataset

ST 28 MCGRATH HWY

Carrying ST 28 MCGRATH HWY over RR MBTA/BMRR

.1 MI S OF PEARL ST, Middlesex, Massachusetts

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
6 t Inventory load rating

Bridge Snapshot: ST 28 MCGRATH HWY

The ST 28 MCGRATH HWY bridge in Middlesex, Massachusetts carries ST 28 MCGRATH HWY over RR MBTA/BMRR. It was built in 1926, making it 100 years old today. It was last reconstructed in 1983, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 53.0 meters (174 feet) end to end. Daily traffic averages 32,000 vehicles, placing it in the heavily-trafficked tier of Massachusetts bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 4/9, substructure at 5/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 6.4 metric tons.

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

How ST 28 MCGRATH HWY compares

▼ 34.8
Load rating vs Massachusetts average (41.2 t)
Bottom 1%
Lower load rating than 99% of Massachusetts bridges
820
Bridges in Middlesex · 72 in Poor condition
ST 28 MCGRATH HWY 6.4 t
Massachusetts average 41.2 t

Live comparison across Massachusetts.

Historical Sufficiency Rating

PlainBridge-computed
2.0 / 100 - historical under-20 band
Structural adequacy /55
0.0
Serviceability /30
2.0
Essentiality /15
0.0
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 How the historical reference is calculated.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

Deck
6/9
Fair (5–6)
Superstructure
4/9
Poor (1–4)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
6.4 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1926
Last Reconstructed
1983
Material
Steel
Number of Spans
1
Structure Length
53.0 m (174 ft)
Deck Width
32.9 m (108 ft)
Owner
State Highway Agency
Avg Daily Traffic
32,000 vehicles/day
Structure Number
S170224E2DOTNBI

Condition Analysis

  • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • The superstructure (beams and supports above the deck) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
  • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

ST 28 MCGRATH HWY is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare ST 28 MCGRATH HWY against other structures in Middlesex and across Massachusetts. Massachusetts 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 ST 28 MCGRATH HWY?

ST 28 MCGRATH HWY in Middlesex, Massachusetts has a deck rating of 6/9, superstructure rating of 4/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is ST 28 MCGRATH HWY inspected?

ST 28 MCGRATH HWY'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 32,000 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. ST 28 MCGRATH HWY is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for ST 28 MCGRATH HWY?

ST 28 MCGRATH HWY has an NBI inventory load rating of 6.4 metric tons.

Who is responsible for maintaining ST 28 MCGRATH HWY?

ST 28 MCGRATH HWY is owned and maintained by State Highway Agency.

How old is ST 28 MCGRATH HWY and does age affect safety?

ST 28 MCGRATH HWY was built in 1926, making it 100 years old and last reconstructed in 1983.

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.