FHWA NBI 2024 Inspection record Public-domain dataset

ST 3 SB/PLGRM HWY

Carrying ST 3 SB/PLGRM HWY over WATER EEL RIVER

4.25 M S OF RTE 44, Plymouth, Massachusetts

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
56 t Inventory load rating

Bridge Snapshot: ST 3 SB/PLGRM HWY

The ST 3 SB/PLGRM HWY bridge in Plymouth, Massachusetts carries ST 3 SB/PLGRM HWY over WATER EEL RIVER. It was built in 1955, making it 71 years old today. The structure is built primarily of concrete and spans 1 section, stretching 6.1 meters (20 feet) end to end. Daily traffic averages 43,577 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 culvert at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 55.7 metric tons.

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

How ST 3 SB/PLGRM HWY compares

▲ 14.5
Load rating vs Massachusetts average (41.2 t)
Top 14%
Higher load rating than 86% of Massachusetts bridges
287
Bridges in Plymouth · 16 in Poor condition
ST 3 SB/PLGRM HWY 55.7 t
Massachusetts average 41.2 t

Live comparison across Massachusetts.

Historical Sufficiency Rating

PlainBridge-computed
86.7 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
2.7
Special reductions
−1.0

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 How the historical reference is calculated.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
7/9
Good (7–9)
Inventory Load Rating
55.7 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1955
Material
Concrete
Number of Spans
1
Structure Length
6.1 m (20 ft)
Owner
State Highway Agency
Avg Daily Traffic
43,577 vehicles/day
Structure Number
P13034496DOTNBI

How to read this record

This page shows what the last federal inspection recorded, not whether ST 3 SB/PLGRM HWY 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 ST 3 SB/PLGRM HWY against other structures in Plymouth 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 ST 3 SB/PLGRM HWY?

ST 3 SB/PLGRM HWY in Plymouth, Massachusetts on the FHWA's 0–9 scale.

How often is ST 3 SB/PLGRM HWY inspected?

ST 3 SB/PLGRM HWY'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 43,577 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. ST 3 SB/PLGRM HWY is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for ST 3 SB/PLGRM HWY?

ST 3 SB/PLGRM HWY has an NBI inventory load rating of 55.7 metric tons.

Who is responsible for maintaining ST 3 SB/PLGRM HWY?

ST 3 SB/PLGRM HWY is owned and maintained by State Highway Agency.

How old is ST 3 SB/PLGRM HWY and does age affect safety?

ST 3 SB/PLGRM HWY was built in 1955, making it 71 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.