Middlesex County, MA

820 public highway bridges

Middlesex County Bridge Snapshot

Middlesex County, Massachusetts contains 820 public highway bridges in the FHWA National Bridge Inventory. Roughly 20.4% are rated “Good,” 61.1% “Fair,” 8.8% “Poor,” and 8.8% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in MA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

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

820

Total Bridges

20.4%

Good

8.8%

Poor

8.8%

Structurally Deficient

Condition Distribution

Good

20.4% (167)

Fair

61.1% (501)

Poor

8.8% (72)

SD

8.8% (72)

All Bridges (820)

Sort:

HWY FELLSWAY WST

Over: I 93

1.0 KM N OF JCT SR60, Middlesex, MA

Built 1962 Load: 38.3 t ADT: 14,000

HWY LAND BLVD

Over: WATER LECHMERE CANAL

500 FT W OF JCT SR 28, Middlesex, MA

Built 1986 Load: 38.4 t ADT: 41,120

HWY SALEM END RD

Over: WATER STEARNS RESERVOIR

.75 MI SE OF RTE 9, Middlesex, MA

Built 1870 Load: 38.4 t ADT: 15,625

I 90 RAMPS J & L

Over: OTHER MDC AQUEDUCT

AT INT 14 L43, Middlesex, MA

Built 1957 Load: 38.4 t ADT: 105,000

I 90 WB

Over: OTHER COCHITUATE TRAIL

I-90 MM 116.4, Middlesex, MA

Built 1957 Load: 38.5 t ADT: 48,609

HWY CROSSNG BLVD

Over: COMB ST 9 & CSX

.5 MI. W. OF MASS PIKE, Middlesex, MA

Built 1989 Load: 38.6 t ADT: 11,379

HWY NB LOWLL CON

Over: HWY LINCOLN ST

0.5 MI WEST RTE 3A, Middlesex, MA

Built 1960 Load: 38.8 t ADT: 17,510

I 93

Over: HWY RIVERSIDE AVE

1000FT S OF JCT 193&SR60, Middlesex, MA

Built 1961 Load: 38.9 t ADT: 179,680

I 93

Over: ST 60 EB/SALEM ST

1.1 KM S OF ROSVELT CIR., Middlesex, MA

Built 1961 Load: 38.9 t ADT: 266,500

I 93

Over: WATER MYSTIC RIVER

.8 KM S OF JCT I93&SR60, Middlesex, MA

Built 1963 Load: 38.9 t ADT: 250,350

HWY SCHOOL ST

Over: WATER NORTHERN CANAL

JUST S OF MERRIMACK RIV, Middlesex, MA

Built 1848 Load: 39.1 t ADT: 11,897

ST 30 COMM AVE

Over: WATER CHARLES RIVER

NEWTON-WESTON TOWN LINE, Middlesex, MA

Built 1962 Load: 39.1 t ADT: 35,200

HWY CENTRAL ST

Over: WATER IPSWICH RIVER

0.15 KM S.OF RTE 62, Middlesex, MA

Built 1995 Load: 39.1 t ADT: 4,800

I 95 /ST128

Over: OTHER MDC AQUEDUCT

0.1 MI NLY RT 30, Middlesex, MA

Built 1950 Load: 39.2 t ADT: 150,095

I 93 NB ON RAMP

Over: I 93

COMMERCE WAY, Middlesex, MA

Built 2000 Load: 39.2 t ADT: 5,069

I 93 OFF RAMP

Over: I 93 & NB ON RAMP

COMMERCE WAY, Middlesex, MA

Built 2000 Load: 39.2 t ADT: 2,389

HWY LYMAN ST

Over: WATER LYMAN POND CREEK

2.7 KM E OF RT.95, Middlesex, MA

Built 1999 Load: 39.5 t ADT: 14,500

I 95 NB/ST128 NB

Over: HWY MIDDLESEX TPK

0.4 KM NE RT 95 & RT 3, Middlesex, MA

Built 1962 Load: 39.6 t ADT: 94,875

HWY CONCORD ST

Over: WATER SUDBURY RIVER

500 N OF SCHOOL ST, Middlesex, MA

Built 1992 Load: 40.1 t ADT: 14,425

HWY HIGH ST

Over: RR MBTA/BMRR

0.8 KM NE ROGERS ST, Middlesex, MA

Built 1986 Load: 40.2 t ADT: 5,114

I 90 EB

Over: OTHER COCHITUATE TRAIL

I-90 MM 116.4, Middlesex, MA

Built 1957 Load: 40.2 t ADT: 48,475

HWY WASHNGTON ST

Over: RR MBTA/BMRR

2.4 KM N OF HARVARD BR., Middlesex, MA

Built 1982 Load: 40.2 t ADT: 13,500

HWY WINTER ST

Over: I 95 /ST128

.4 KM S OF 128 INT, Middlesex, MA

Built 2011 Load: 40.3 t ADT: 40,700

ST 62 BURLNGTN AVE

Over: RR MBTA/BMRR

AT RT 38, Middlesex, MA

Built 2000 Load: 40.3 t ADT: 23,146

HWY RIVERNECK RD

Over: US 3

0.25 MI SO RTE 110, Middlesex, MA

Built 2004 Load: 40.5 t ADT: 6,700

ST 62 MAIN ST

Over: WATER ASSABET RIVER

0.32 KM SW RT 2, Middlesex, MA

Built 1886 Load: 40.6 t ADT: 14,400

HWY TILESTON ST

Over: TR NRTHRN STRAND COMM

0.25 MI N OF ST-16, Middlesex, MA

Built 2002 Load: 40.8 t ADT: 4,400

ST 16 MYST VAL PKY

Over: COMB MYSTIC R & PED/BKY

.3 MI E OF ST RTE 38, Middlesex, MA

Built 1988 Load: 40.8 t ADT: 39,725

HWY MIDDLESEX RD

Over: WATER BRIDGE MEADOW BRK

100 YDS N OF ST-113, Middlesex, MA

Built 1930 Load: 40.8 t ADT: 25,215

HWY FRESH PND LN

Over: OTHER GREENWAY M/U PATH

150 M JCT SR 16&2, Middlesex, MA

Built 1927 Load: 41.0 t ADT: 388

HWY CEDAR ST

Over: RR MBTA/BMRR

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

Built 1999 Load: 41.0 t ADT: 9,400

I 95 SB/ST128 SB

Over: HWY MIDDLESEX TPK

0.4 KM NE RT 95 & RT 3, Middlesex, MA

Built 1962 Load: 41.2 t ADT: 96,637

HWY ANDOVER RD

Over: RR MBTA/BMRR

0.1 MI NE ANDOVER & SALEM, Middlesex, MA

Built 2006 Load: 41.5 t ADT: 6,207

ST 62 /ST2A/MAIN

Over: WATER SUDBURY RIVER

1.0 KM NE RT 2, Middlesex, MA

Built 1909 Load: 41.7 t ADT: 17,100

ST 16 GALEN ST

Over: WATER CHARLES RIVER

AT NONANTUM RD, Middlesex, MA

Built 1907 Load: 41.7 t ADT: 42,200

ST 2

Over: HWY FOSTER ST

ROUTE 2 MM 113.6, Middlesex, MA

Built 1950 Load: 41.8 t ADT: 44,387

HWY PLAIN ST

Over: RR CSX (ABAND)

0.25 SE LWLL CONN, Middlesex, MA

Built 1993 Load: 41.8 t ADT: 7,500

HWY WASHNGTON ST

Over: WATER ABERJONA RIVER

.48 KM S. OF WOBURN, Middlesex, MA

Built 1934 Load: 41.8 t ADT: 18,233

HWY OLYMPIA AVE

Over: RR MBTA/BMRR

1.1 KM W STONEHAM, Middlesex, MA

Built 1963 Load: 41.8 t ADT: 13,375

HWY ROGERS ST

Over: TR GREEN LINE D

OVER GREEN LINE, Middlesex, MA

Built 1906 Load: 42.0 t ADT: 766

HWY BEACON ST

Over: TR GREEN LINE D

OVER GREEN LINE, Middlesex, MA

Built 1917 Load: 42.0 t ADT: 24,000

I 93

Over: HWY VALLEY ST & FLLSWY

.6 MI N OF JCT. I93&SR60, Middlesex, MA

Built 1961 Load: 42.1 t ADT: 210,316

ST 2 EB RAMP

Over: WATER ALEWIFE BROOK

1.2 KM E RT 2 & LAKE ST, Middlesex, MA

Built 1986 Load: 42.3 t ADT: 6,361

ST 2 A/MAPLE ST

Over: OTHER MINUTEMAN BIKE PTH

.16 KM E RT 2A & MASS AVE, Middlesex, MA

Built 1919 Load: 42.3 t ADT: 12,000

HWY MILL RD

Over: WATER BEAVER BROOK

.2 MI. SOUTH OF ST-110, Middlesex, MA

Built 1950 Load: 42.3 t ADT: 750

HWY YMCA DR

Over: COMB MBTA/BMRR & DRIVE

0.1 MI SW RT 3A & HALE ST, Middlesex, MA

Built 1892 Load: 42.5 t ADT: 9,500

HWY MOODY ST

Over: WATER WESTERN CANAL

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

Built 1913 Load: 42.5 t ADT: 3,700

HWY HOWE ST

Over: WATER SUDBURY RIVER

1MI. N OF HOPKINTON TL., Middlesex, MA

Built 1990 Load: 42.7 t ADT: 929

HWY HOWE ST

Over: RR MBTA/CSX

.1 MI S OF CORDAVILLE RD, Middlesex, MA

Built 1990 Load: 42.7 t ADT: 600

ST119 GREAT RD

Over: RR BMRR

.2 MI S OF GROTON T.L., Middlesex, MA

Built 1995 Load: 42.8 t ADT: 13,913

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

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026