FHWA NBI 2024 Inspection record Public-domain dataset

HWY LWLL CONN NB

Carrying HWY LWLL CONN NB over HWY RIVERNECK RD

0.4 KM W RT 495, Middlesex, Massachusetts

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
35 t Inventory load rating

Bridge Snapshot: HWY LWLL CONN NB

The HWY LWLL CONN NB bridge in Middlesex, Massachusetts carries HWY LWLL CONN NB over HWY RIVERNECK RD. It was built in 1959, making it 67 years old today. It was last reconstructed in 1984, extending its service life. The structure is built primarily of steel and spans 3 sections, stretching 36.6 meters (120 feet) end to end. Daily traffic averages 15,000 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 5/9, superstructure at 5/9, substructure at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 35.2 metric tons.

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

How HWY LWLL CONN NB compares

▼ 6.0
Load rating vs Massachusetts average (41.2 t)
Bottom 44%
Lower load rating than 56% of Massachusetts bridges
820
Bridges in Middlesex · 72 in Poor condition
HWY LWLL CONN NB 35.2 t
Massachusetts average 41.2 t

Live comparison across Massachusetts.

Historical Sufficiency Rating

PlainBridge-computed
82.3 / 100 - historical 80–100 band
Structural adequacy /55
45.0
Serviceability /30
26.0
Essentiality /15
13.3
Special reductions
−2.0

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 How the historical reference is calculated.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
5/9
Fair (5–6)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
35.2 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1959
Last Reconstructed
1984
Material
Steel
Number of Spans
3
Structure Length
36.6 m (120 ft)
Deck Width
13.8 m (45 ft)
Owner
State Highway Agency
Avg Daily Traffic
15,000 vehicles/day
Structure Number
C080322GXDOTNBI

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 5/9, minor deterioration that routine maintenance should address.
  • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.

How to read this record

This page shows what the last federal inspection recorded, not whether HWY LWLL CONN NB 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 HWY LWLL CONN NB 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 LWLL CONN NB?

HWY LWLL CONN NB in Middlesex, Massachusetts has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is HWY LWLL CONN NB inspected?

HWY LWLL CONN NB'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 15,000 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. HWY LWLL CONN NB 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 HWY LWLL CONN NB?

HWY LWLL CONN NB has an NBI inventory load rating of 35.2 metric tons.

Who is responsible for maintaining HWY LWLL CONN NB?

HWY LWLL CONN NB is owned and maintained by State Highway Agency.

How old is HWY LWLL CONN NB and does age affect safety?

HWY LWLL CONN NB was built in 1959, making it 67 years old and last reconstructed in 1984.

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.