FHWA NBI 2024 Inspection record Public-domain dataset

HWY SOUTH RD

Carrying HWY SOUTH RD over WATER ELM BROOK

.6 MI S OF RT 4 & 225, Middlesex, Massachusetts

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
7 t Inventory load rating

Bridge Snapshot: HWY SOUTH RD

The HWY SOUTH RD bridge in Middlesex, Massachusetts carries HWY SOUTH RD over WATER ELM BROOK. It was built in 1970, making it 56 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 6.7 meters (22 feet) end to end. Daily traffic averages 3,400 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 culvert 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 6.5 metric tons.

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

How HWY SOUTH RD compares

▼ 34.7
Load rating vs Massachusetts average (41.2 t)
Bottom 1%
Lower load rating than 99% of Massachusetts bridges
820
Bridges in Middlesex · 72 in Poor condition
HWY SOUTH RD 6.5 t
Massachusetts average 41.2 t

Live comparison across Massachusetts.

Historical Sufficiency Rating

PlainBridge-computed
24.2 / 100 - historical 20–49.9 band
Structural adequacy /55
0.0
Serviceability /30
14.0
Essentiality /15
10.2
Special reductions
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 How the historical reference is calculated.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

Culvert
4/9
Poor (1–4)
Inventory Load Rating
6.5 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1970
Material
Concrete
Number of Spans
2
Structure Length
6.7 m (22 ft)
Deck Width
15.7 m (52 ft)
Owner
Town/Township Highway Agency
Avg Daily Traffic
3,400 vehicles/day
Structure Number
B040102B7MUNNBI

How to read this record

HWY SOUTH 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 SOUTH 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 SOUTH RD?

HWY SOUTH RD in Middlesex, Massachusetts on the FHWA's 0–9 scale.

How often is HWY SOUTH RD inspected?

HWY SOUTH 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 3,400 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. HWY SOUTH 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 SOUTH RD?

HWY SOUTH RD has an NBI inventory load rating of 6.5 metric tons.

Who is responsible for maintaining HWY SOUTH RD?

HWY SOUTH RD is owned and maintained by Town/Township Highway Agency.

How old is HWY SOUTH RD and does age affect safety?

HWY SOUTH RD was built in 1970, making it 56 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.