HWY TRMNT-ARLNGT
Carrying HWY TRMNT-ARLNGT over RR AMTRAK/MBTA
.16 KM S OF I90, Suffolk, Massachusetts
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: HWY TRMNT-ARLNGT
The HWY TRMNT-ARLNGT bridge in Suffolk, Massachusetts carries HWY TRMNT-ARLNGT over RR AMTRAK/MBTA. It was built in 1979, making it 47 years old today. The structure is built primarily of steel and spans 2 sections, stretching 22.6 meters (74 feet) end to end. Daily traffic averages 30,400 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 5/9, superstructure at 6/9, substructure at 4/9. 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 34.0 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How HWY TRMNT-ARLNGT 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 How the historical reference is calculated.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
- 1979
- Material
- Steel
- Number of Spans
- 2
- Structure Length
- 22.6 m (74 ft)
- Deck Width
- 121.9 m (400 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 30,400 vehicles/day
- Structure Number
- B160813HPDOT634
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • The superstructure (beams and supports above the deck) rates fair at 6/9, minor deterioration that routine maintenance should address.
- • 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 TRMNT-ARLNGT 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 TRMNT-ARLNGT 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 TRMNT-ARLNGT?
HWY TRMNT-ARLNGT in Suffolk, Massachusetts has a deck rating of 5/9, superstructure rating of 6/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is HWY TRMNT-ARLNGT inspected?
HWY TRMNT-ARLNGT'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 30,400 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. HWY TRMNT-ARLNGT 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 TRMNT-ARLNGT?
HWY TRMNT-ARLNGT has an NBI inventory load rating of 34.0 metric tons.
Who is responsible for maintaining HWY TRMNT-ARLNGT?
HWY TRMNT-ARLNGT is owned and maintained by State Highway Agency.
How old is HWY TRMNT-ARLNGT and does age affect safety?
HWY TRMNT-ARLNGT was built in 1979, making it 47 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.
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.