HWY WALWORTH ST
Carrying HWY WALWORTH ST over RR MBTA
JUST N OF BELGRADE AVE, Suffolk, Massachusetts
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: HWY WALWORTH ST
The HWY WALWORTH ST bridge in Suffolk, Massachusetts carries HWY WALWORTH ST over RR MBTA. It was built in 1918, making it 108 years old today. It was last reconstructed in 1996, extending its service life. The structure is built primarily of prestressed concrete and spans 1 section, stretching 12.1 meters (40 feet) end to end. Daily traffic averages 10,216 vehicles, placing it in the heavily-trafficked tier of Massachusetts bridges. It is owned and maintained by City/Municipal 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. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 32.7 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How HWY WALWORTH ST 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 How the historical reference is calculated.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
- 1918
- Last Reconstructed
- 1996
- Material
- Prestressed Concrete
- Number of Spans
- 1
- Structure Length
- 12.1 m (40 ft)
- Deck Width
- 11.5 m (38 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 10,216 vehicles/day
- Structure Number
- B1611438FMUNNBI
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • The substructure (piers and abutments) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
How to read this record
HWY WALWORTH ST 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 WALWORTH ST against other structures in Suffolk 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 WALWORTH ST?
HWY WALWORTH ST in Suffolk, 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 WALWORTH ST inspected?
HWY WALWORTH ST'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 10,216 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. HWY WALWORTH ST 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 WALWORTH ST?
HWY WALWORTH ST has an NBI inventory load rating of 32.7 metric tons.
Who is responsible for maintaining HWY WALWORTH ST?
HWY WALWORTH ST is owned and maintained by City/Municipal Highway Agency.
How old is HWY WALWORTH ST and does age affect safety?
HWY WALWORTH ST was built in 1918, making it 108 years old and last reconstructed in 1996.
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.