FHWA NBI 2024 Inspection record Public-domain dataset

HWY WINTHROP ST

Carrying HWY WINTHROP ST over WATER IPSWICH RIVER

@ IPWSICH TL = I-01-006, Essex, Massachusetts

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
1 t Inventory load rating

Bridge Snapshot: HWY WINTHROP ST

The HWY WINTHROP ST bridge in Essex, Massachusetts carries HWY WINTHROP ST over WATER IPSWICH RIVER. It was built in 1845, making it 181 years old today. It was last reconstructed in 1989, extending its service life. The structure is built primarily of wood or timber and spans 2 sections, stretching 19.2 meters (63 feet) end to end. Daily traffic averages 650 vehicles, placing it in the lower-traffic tier of Massachusetts bridges. It is owned and maintained by Town/Township Highway Agency.

The latest FHWA inspection records show a deck rating of 4/9, superstructure at 4/9, substructure at 5/9. 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 0.6 metric tons.

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

How HWY WINTHROP ST compares

▼ 40.6
Load rating vs Massachusetts average (41.2 t)
Bottom 1%
Lower load rating than 99% of Massachusetts bridges
399
Bridges in Essex · 66 in Poor condition
HWY WINTHROP ST 0.6 t
Massachusetts average 41.2 t

Live comparison across Massachusetts.

Historical Sufficiency Rating

PlainBridge-computed
15.1 / 100 - historical under-20 band
Structural adequacy /55
0.0
Serviceability /30
4.0
Essentiality /15
11.1
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 How the historical reference is calculated.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

Deck
4/9
Poor (1–4)
Superstructure
4/9
Poor (1–4)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
0.6 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1845
Last Reconstructed
1989
Material
Wood or Timber
Number of Spans
2
Structure Length
19.2 m (63 ft)
Deck Width
7.0 m (23 ft)
Owner
Town/Township Highway Agency
Avg Daily Traffic
650 vehicles/day
Structure Number
H030022R5MUNNBI

Condition Analysis

  • The deck (driving surface) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
  • The superstructure (beams and supports above the deck) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
  • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.

How to read this record

HWY WINTHROP 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 WINTHROP ST against other structures in Essex 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 WINTHROP ST?

HWY WINTHROP ST in Essex, Massachusetts has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is HWY WINTHROP ST inspected?

HWY WINTHROP 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 650 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. HWY WINTHROP 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 WINTHROP ST?

HWY WINTHROP ST has an NBI inventory load rating of 0.6 metric tons.

Who is responsible for maintaining HWY WINTHROP ST?

HWY WINTHROP ST is owned and maintained by Town/Township Highway Agency.

How old is HWY WINTHROP ST and does age affect safety?

HWY WINTHROP ST was built in 1845, making it 181 years old and last reconstructed in 1989.

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.