Middlesex County, MA

820 public highway bridges

Middlesex County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Middlesex County, Massachusetts contains 820 public highway bridges. Roughly 20.4% are rated “Good,” 61.1% “Fair,” and 8.8% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

820
Total Bridges
20.4%
Good
61.1%
Fair
8.8%
Poor Condition

Condition Distribution

Good
20.4% (167)
Fair
61.1% (501)
Poor
8.8% (72)

All Bridges (820)

HWY PAWTUCKET ST

Good

Over: WATER NORTHERN CANAL

AT FRENCH ST EXT, Middlesex, MA

Built 2022 Load: 32.4 t ADT: 2,900

HWY PAWTUCKET ST

Good

Over: WATER PAWTUCKET CANAL

AT MERRIMACK RIVER, Middlesex, MA

Built 2021 Load: 32.4 t ADT: 18,800

HWY VFW HWY

Good

Over: WATER BEAVER BROOK

1.6 KM E UNVRSTY OF LWLL, Middlesex, MA

Built 2022 Load: 32.4 t ADT: 25,788

HWY CANAL ST

Good

Over: WATER PAWTUCKET CANAL

0.15 KM FROM DUTTON ST, Middlesex, MA

Built 2019 Load: 32.4 t ADT: 10

HWY ELM ST

Good

Over: WATER MILLHAM BROOK

960' E OF BOUNDARY ST, Middlesex, MA

Built 2015 Load: 32.4 t ADT: 1,164

HWY FLORIDA RD

Good

Over: WATER ASSABET RIVER

0.1 MI N OF ST-62, Middlesex, MA

Built 2023 Load: 32.4 t ADT: 2,850

ST 38 MAIN ST

Good

Over: WATER MYSTIC RIVER

.1 MI N OF ST16, Middlesex, MA

Built 1908 Load: 32.4 t ADT: 67,900

HWY LONGLEY RD

Good

Over: WATER MULPUS BROOK

.1 MI. NE. OF RT. 2A, Middlesex, MA

Built 2021 Load: 32.4 t ADT: 800

HWY BROADWAY

Good

Over: RR MBTA/BMRR

2.4 KM NW OF JCT SR28&38, Middlesex, MA

Built 2020 Load: 32.4 t ADT: 28,000

HWY DUTTON RD

Good

Over: WATER HOP BROOK

0.4 MI SOUTH OF HUDSON RD, Middlesex, MA

Built 2021 Load: 32.4 t ADT: 4,000

HWY W MEADOW RD

Good

Over: WATER LOCKE BROOK

.15 MI. N. OF ST-119, Middlesex, MA

Built 2021 Load: 32.4 t ADT: 516

HWY WOERD AVE

Good

Over: WATER CHARLES RIVER

.6 KM. NE. OF NEWTON LINE, Middlesex, MA

Built 2021 Load: 32.4 t ADT: 2,760

HWY BEAVER BK RD

Good

Over: WATER BEAVER BROOK

.2 MI. E. OF LITTLETON LN, Middlesex, MA

Built 2023 Load: 32.4 t ADT: 2,929

ST 62 MIDDLESEX AV

Good

Over: WATER LUBBERS BROOK

225FT W OF NORTH STREET, Middlesex, MA

Built 2022 Load: 32.4 t ADT: 26,800

HWY SWANTON ST

Good

Over: WATER ABERJONA RIVER

E OF RT38,N OF WNCHSTR CT, Middlesex, MA

Built 2021 Load: 32.4 t ADT: 10,344

HWY SALEM ST

Good

Over: RR MBTA/BMRR

1.9 KM S RTE 93, Middlesex, MA

Built 2021 Load: 32.4 t ADT: 25,000

US 20 WB/BSTN PST

Good

Over: I 495

1.8 MI. E. OF NTHBORO TL., Middlesex, MA

Built 1962 Load: 32.5 t ADT: 28,074

HWY RINDGE RD

Good

Over: WATER FALULAH BROOK

3.6 MI. W. OF ST. 31, Middlesex, MA

Built 1997 Load: 32.7 t ADT: 3,103

HWY JEFFERSON ST

Good

Over: WATER WESTERN CANAL

0.96 KM. SW. OF RT. 38, Middlesex, MA

Built 1850 Load: 33.3 t ADT: 650

HWY WHITE PND RD

Good

Over: WATER ASSABET RIVER

.5 MI. S. OF ST.117, Middlesex, MA

Built 2007 Load: 33.5 t ADT: 180

HWY RIVER ST

Good

Over: WATER STONY BROOK

.1 MI SE OF NORTH ST, Middlesex, MA

Built 1997 Load: 33.5 t ADT: 3,100

HWY LINCOLN ST

Good

Over: COMB CSX & QUEBEC ST

0.40 KM W RT 3A, Middlesex, MA

Built 2002 Load: 33.9 t ADT: 1,681

HWY PEABODY ST

Good

Over: OTHER DEM RAIL TRAIL

0.4 MI SO OF RTE 111, Middlesex, MA

Built 2002 Load: 35.0 t ADT: 714

HWY GRAY ST

Good

Over: RR MBTA/BMRR

.4 MILES TWKS. TWN. LINE, Middlesex, MA

Built 1996 Load: 35.5 t ADT: 4,300

I 90 WB

Good

Over: WATER MDC RES 3

0.7 MI E OF TEMPLE ST, Middlesex, MA

Built 1957 Load: 35.6 t ADT: 47,529

HWY BROADWAY

Good

Over: WATER PAWTUCKET CANAL

NEAR GATE HOUSE, Middlesex, MA

Built 1852 Load: 35.6 t ADT: 9,000

ST 16 REV BCH PKWY

Good

Over: COMB RIVERS EDGE&MBTA&O

.2 MI E OF FELLSWAY, Middlesex, MA

Built 2018 Load: 35.6 t ADT: 68,300

HWY SPEEN ST

Good

Over: WATER FISKE POND

@ ST.135 AND SPEEN ST, Middlesex, MA

Built 2011 Load: 35.6 t ADT: 14,500

HWY TURNPIKE RD

Good

Over: WATER SQUANNACOOK RIVER

AT BARKER HILL ROAD, Middlesex, MA

Built 1999 Load: 35.6 t ADT: 1,699

HWY PELHAM IS RD

Good

Over: WATER SUDBURY RIVER

.4MI SW OF RT. 20, Middlesex, MA

Built 2012 Load: 35.6 t ADT: 1,900

I 90 RAMP R

Good

Over: OTHER MWRA AQUEDUCT

I-90 WB EXIT 15A RAMP, Middlesex, MA

Built 2017 Load: 35.6 t ADT: 7,800

HWY WETHERBEE ST

Good

Over: WATER NASHOBA BROOK

500 FT S OF RT 2A, Middlesex, MA

Built 1997 Load: 35.7 t ADT: 2,586

HWY NICHOLS ST

Good

Over: RR MBTA/BMRR

.32 KM SW TEWKSBURY, Middlesex, MA

Built 1968 Load: 35.7 t ADT: 3,400

HWY VINTON PD RD

Good

Over: WATER PEARL HILL BROOK

.1 MI W FITCHBURG RD, Middlesex, MA

Built 2009 Load: 35.8 t ADT: 200

HWY BOYLSTON ST

Good

Over: RR BMRR

0.4 KM N RTE 495, Middlesex, MA

Built 1999 Load: 35.9 t ADT: 17,500

HWY COOPER ST

Good

Over: RR MBTA/BMRR

JUST OFF MYRTLE AVE, Middlesex, MA

Built 1919 Load: 36.0 t ADT: 2,069

HWY PHINEAS ST

Good

Over: WATER BEAVER BROOK

3.4 MI N OF RT 3, Middlesex, MA

Built 1995 Load: 36.2 t ADT: 6,100

I 495

Good

Over: WATER MILL POND

@MM 78.7, 1.25 MI NE RT 2, Middlesex, MA

Built 1961 Load: 36.5 t ADT: 107,705

HWY EAMES ST

Good

Over: RR MBTA/BMRR

0.4 MI NE OF RTE 38, Middlesex, MA

Built 1994 Load: 36.7 t ADT: 5,800

HWY BOUNDARY ST

Good

Over: WATER ASSABET RIVER

100 FT. SE OF NTHBRO T.L., Middlesex, MA

Built 2010 Load: 36.9 t ADT: 4,239

ST119 SOUTH RD

Good

Over: WATER NASHUA RIVER

AT PEPPERELL TOWN LINE, Middlesex, MA

Built 1931 Load: 37.7 t ADT: 13,298

HWY WILEY ST

Good

Over: WATER MILL RIVER

.16 KM. S. OF RT. 129, Middlesex, MA

Built 1971 Load: 38.8 t ADT: 500

HWY MAIN ST

Good

Over: WATER SALMON BROOK

.5 MI. N. OF RTE 113, Middlesex, MA

Built 2014 Load: 38.9 t ADT: 2,600

ST 85 RIVER ST

Good

Over: WATER SUDBURY RIVER

1000FT S.OF SOUTHVILLE RD, Middlesex, MA

Built 2014 Load: 38.9 t ADT: 8,359

ST 2

Good

Over: I 95 /ST128

1.6 KM S RT 2A & RT 128, Middlesex, MA

Built 2016 Load: 38.9 t ADT: 84,703

HWY MILL ST

Good

Over: WATER SHAWSHEEN RIVER

1 MI. N. OF RT. 38, Middlesex, MA

Built 1998 Load: 38.9 t ADT: 170

HWY ACCESS RD

Good

Over: WATER STONY BROOK

AT WESTON TRANSFER STA, Middlesex, MA

Built 2013 Load: 38.9 t ADT: 1,034

HWY UNIVRSTY AVE

Good

Over: WATER MERRIMACK & CANAL

0.2 MI S OF RTE 113, Middlesex, MA

Built 2014 Load: 39.3 t ADT: 13,500

HWY ROBIN HLL ST

Good

Over: WATER ASSABET RIVER

.2 MI NE OF NORTHBORO TL, Middlesex, MA

Built 2010 Load: 39.8 t ADT: 1,300

I 495 NB

Good

Over: WATER CONCORD RIVER

3.2KM SOUTH OF RT 38, Middlesex, MA

Built 2011 Load: 40.6 t ADT: 61,200

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. 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.