FHWA NBI 2024 Inspection record Public-domain dataset

HWY MEMORL DR EB

Carrying HWY MEMORL DR EB over WATER CHARLES RIVER

JUST S OF LONGFELLOW BR, Middlesex, Massachusetts

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
21 t Inventory load rating

Bridge Snapshot: HWY MEMORL DR EB

The HWY MEMORL DR EB bridge in Middlesex, Massachusetts carries HWY MEMORL DR EB over WATER CHARLES RIVER. It was built in 1956, making it 70 years old today. The structure is built primarily of prestressed concrete and spans 16 sections, stretching 267.6 meters (878 feet) end to end. Daily traffic averages 13,000 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 5/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 20.8 metric tons.

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

How HWY MEMORL DR EB compares

▼ 20.4
Load rating vs Massachusetts average (41.2 t)
Bottom 6%
Lower load rating than 94% of Massachusetts bridges
820
Bridges in Middlesex · 72 in Poor condition
HWY MEMORL DR EB 20.8 t
Massachusetts average 41.2 t

Live comparison across Massachusetts.

Historical Sufficiency Rating

PlainBridge-computed
52.1 / 100 - historical 50–79.9 band
Structural adequacy /55
32.1
Serviceability /30
8.0
Essentiality /15
15.0
Special reductions
−3.0

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 How the historical reference is calculated.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

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

Structural Details

Year Built
1956
Material
Prestressed Concrete
Number of Spans
16
Structure Length
267.6 m (878 ft)
Deck Width
12.8 m (42 ft)
Owner
State Highway Agency
Avg Daily Traffic
13,000 vehicles/day
Structure Number
C010384DPDOTNBI

Condition Analysis

  • The deck (driving surface) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
  • The superstructure (beams and supports above the deck) rates fair at 5/9, minor deterioration that routine maintenance should address.
  • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

This page shows what the last federal inspection recorded, not whether HWY MEMORL DR EB 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 MEMORL DR EB 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 MEMORL DR EB?

HWY MEMORL DR EB in Middlesex, Massachusetts has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is HWY MEMORL DR EB inspected?

HWY MEMORL DR EB'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 13,000 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. HWY MEMORL DR EB 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 MEMORL DR EB?

HWY MEMORL DR EB has an NBI inventory load rating of 20.8 metric tons.

Who is responsible for maintaining HWY MEMORL DR EB?

HWY MEMORL DR EB is owned and maintained by State Highway Agency.

How old is HWY MEMORL DR EB and does age affect safety?

HWY MEMORL DR EB was built in 1956, making it 70 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.

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.