HWY SUDBURY RD
Carrying HWY SUDBURY RD over WATER ASSABET RIVER
0.8 MI. E. OF RT. 62, Middlesex, Massachusetts
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: HWY SUDBURY RD
The HWY SUDBURY RD bridge in Middlesex, Massachusetts carries HWY SUDBURY RD over WATER ASSABET RIVER. It was built in 1902, making it 124 years old today. It was last reconstructed in 1985, extending its service life. The structure is built primarily of wood or timber and spans 1 section, stretching 7.9 meters (26 feet) end to end. Daily traffic averages 4,400 vehicles, placing it in the moderately-trafficked tier of Massachusetts bridges. It is owned and maintained by Town/Township Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 4/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 23.1 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How HWY SUDBURY RD compares
Live comparison across Massachusetts.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1902
- Last Reconstructed
- 1985
- Material
- Wood or Timber
- Number of Spans
- 1
- Structure Length
- 7.9 m (26 ft)
- Deck Width
- 7.5 m (25 ft)
- Owner
- Town/Township Highway Agency
- Avg Daily Traffic
- 4,400 vehicles/day
- Structure Number
- S29003264MUNNBI
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • At 4/9, the substructure (piers and abutments) is in poor shape, with advanced wear flagged for priority repair.
How to read this record
HWY SUDBURY RD 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 HWY SUDBURY RD 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 HWY SUDBURY RD?
HWY SUDBURY RD in Middlesex, Massachusetts has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is HWY SUDBURY RD inspected?
HWY SUDBURY 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 4,400 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. HWY SUDBURY RD 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 HWY SUDBURY RD?
HWY SUDBURY RD has an NBI inventory load rating of 23.1 metric tons.
Who is responsible for maintaining HWY SUDBURY RD?
HWY SUDBURY RD is owned and maintained by Town/Township Highway Agency.
How old is HWY SUDBURY RD and does age affect safety?
HWY SUDBURY RD was built in 1902, making it 124 years old and last reconstructed in 1985.
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.
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.