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)

HWY MEMORL DR EB

Fair

Over: WATER CHARLES RIVER

JUST S OF LONGFELLOW BR, Middlesex, MA

Built 1956 Load: 20.8 t ADT: 13,000

I 495 NB

Fair

Over: HWY DONALD LYNCH BLVD

.1 MI N OF I-290, Middlesex, MA

Built 1963 Load: 21.0 t ADT: 48,156

US 3 /ST2&16/ALWF

Fair

Over: HWY ALW STA ACCESS RD

.32 KM N OF RINGE AVE, Middlesex, MA

Built 1984 Load: 21.2 t ADT: 54,568

HWY SHORE RD

Fair

Over: WATER ABERJONA RIVER

45 M W. OF SKILLING RD, Middlesex, MA

Built 1955 Load: 22.4 t ADT: 646

ST 9 BOYLSTON ST

Fair

Over: HWY CENTRE ST

1.5 MI ELY RT 128, Middlesex, MA

Built 1932 Load: 22.5 t ADT: 73,966

I 95 /ST128

Fair

Over: HWY NORUMBEGA RD

0.2 MI NLY RT 30, Middlesex, MA

Built 1950 Load: 22.6 t ADT: 147,364

ST 4 GREAT RD

Fair

Over: WATER SHAWSHEEN RIVER

1.25 MI NW RT 128 & BDFRD, Middlesex, MA

Built 1903 Load: 22.7 t ADT: 37,000

HWY MT WAYTE AVE

Fair

Over: RR CSX

.7 MI. N. OF ST-135, Middlesex, MA

Built 1947 Load: 22.7 t ADT: 10,000

ST 3 A/BOSTON RD

Fair

Over: WATER SHAWSHEEN RIVER

0.25 MI E RT3A/ALLEN RD, Middlesex, MA

Built 1915 Load: 22.9 t ADT: 19,400

HWY WALES ST

Fair

Over: WATER CHARLES RIVER

@ WELLESLEY TL = W13002, Middlesex, MA

Built 1928 Load: 22.9 t ADT: 25,086

HWY WINTER ST

Fair

Over: WATER SUDBURY RIVER

.6 M S OF RTE 9, Middlesex, MA

Built 1877 Load: 23.3 t ADT: 14,300

I 95 /ST128

Fair

Over: RR MBTA/BMRR

1.2 MI NELY RT 28, Middlesex, MA

Built 1950 Load: 23.3 t ADT: 144,478

HWY TRAPELO RD

Fair

Over: RR MBTA/BMRR

WAVERLY SQ NEAR ST 60, Middlesex, MA

Built 1952 Load: 23.6 t ADT: 14,900

HWY NB LOWLL CON

Fair

Over: HWY INDSTRIAL AVE EAST

0.3 MI N OF I-495, Middlesex, MA

Built 1960 Load: 23.6 t ADT: 35,000

ST225 BEDFORD RD

Fair

Over: WATER CONCORD RIVER

AT TWNLN BEDFORD-CARLISLE, Middlesex, MA

Built 1955 Load: 23.7 t ADT: 9,750

ST 27 OLD SUDBURY

Fair

Over: WATER SUDBURY RIVER

AT RIVER RD, Middlesex, MA

Built 1956 Load: 23.9 t ADT: 12,500

I 95 SB/ST128 SB

Fair

Over: HWY WINN ST

0.75 MI NE RT 95 & RT 3A, Middlesex, MA

Built 1949 Load: 24.0 t ADT: 99,185

HWY LANDHAM RD

Fair

Over: RR BMRR (ABANDONED)

300 FT S OF RT. 20, Middlesex, MA

Built 1970 Load: 24.2 t ADT: 13,356

HWY FARWELL ST

Fair

Over: WATER CHARLES RIVER

AT CHARLES RIVER, Middlesex, MA

Built 1850 Load: 24.2 t ADT: 20,252

ST117 GREAT RD

Fair

Over: WATER ELIZABETH BROOK

100 FT. EAST OF HUDSON RD, Middlesex, MA

Built 1952 Load: 24.3 t ADT: 12,844

I 95 /ST128

Fair

Over: ST129 WB MAIN ST

RT 128 AT RT 129 WB, Middlesex, MA

Built 1949 Load: 24.5 t ADT: 96,021

HWY NEWHALL ST

Fair

Over: WATER RIVER MEADOW BROOK

.16 KM E. OF RT. 3A, Middlesex, MA

Built 1949 Load: 24.6 t ADT: 2,300

HWY NEWTON ST

Fair

Over: RR MBTA/BMRR

0.16 KM SOUTH JCT RT 20, Middlesex, MA

Built 1930 Load: 24.7 t ADT: 8,400

ST135 UNION ST

Fair

Over: WATER SUDBURY RIVER

2.5 MI W OF 126 & 135, Middlesex, MA

Built 1900 Load: 24.8 t ADT: 11,481

HWY WOOD ST EXT

Fair

Over: COMB BMRR & MERRIMACK R

ROURKE BRIDGE, Middlesex, MA

Built 1983 Load: 25.1 t ADT: 32,200

HWY SPEEN ST NB

Fair

Over: HWY RAMPS D & G

0.8 MI WEST RTS 9 & 27, Middlesex, MA

Built 1977 Load: 25.2 t ADT: 15,000

I 95 NB/ST128 NB

Fair

Over: ST 3 A/CAMBRIDGE ST

AT JUNC. OF I 95 & ST 3A, Middlesex, MA

Built 1950 Load: 25.5 t ADT: 89,900

HWY FAULKNER ST

Fair

Over: WATER CONCORD RIVER

1.2 KM E OF RTE 3A, Middlesex, MA

Built 1850 Load: 25.8 t ADT: 6,871

HWY LEXINGTON ST

Fair

Over: RR MBTA/BMRR

WAVERLY SQ NEAR ST 60, Middlesex, MA

Built 1952 Load: 25.9 t ADT: 26,120

I 95 /ST128

Fair

Over: HWY PLEASURE ISLAND RD

0.3 MI WLY SAUGUS RIVER, Middlesex, MA

Built 1948 Load: 25.9 t ADT: 135,000

US 20 WB/WESTON ST

Fair

Over: I 95 /ST128

RT 20 WB AT RT 128, Middlesex, MA

Built 1960 Load: 25.9 t ADT: 27,600

HWY SKILLINGS RD

Fair

Over: WATER ABERJONA RIVER

1.4 KM W STONEHAM, Middlesex, MA

Built 1955 Load: 25.9 t ADT: 11,800

ST225 W MAIN ST

Fair

Over: WATER NASHUA RIVER

0.8 MI W RT 111, Middlesex, MA

Built 1930 Load: 26.1 t ADT: 4,927

I 90

Fair

Over: RR CSX/MBTA

.2 MI E.CHARLES RV S11, Middlesex, MA

Built 1965 Load: 26.1 t ADT: 106,825

HWY MEDFORD ST

Fair

Over: RR MBTA/BMRR

.7 MI SW OF JCT SR28&38, Middlesex, MA

Built 1910 Load: 26.4 t ADT: 14,800

HWY AIKEN ST

Fair

Over: WATER MERRIMACK RIVER

AT MERRIMACK RIVER, Middlesex, MA

Built 1883 Load: 26.5 t ADT: 26,000

ST119 SOUTH ST

Fair

Over: WATER NASHUA RIVER TRIB

600' N OF GROTON TL, Middlesex, MA

Built 1910 Load: 26.5 t ADT: 13,298

I 95 NB/ST128 NB

Fair

Over: HWY S BEDFORD ST

0.5 MI SW RT 95 & RT 3A, Middlesex, MA

Built 1950 Load: 26.6 t ADT: 92,706

ST 9 BOYLSTON ST

Fair

Over: HWY HAMMOND POND PKWY

5.3 KM ELY RT 128, Middlesex, MA

Built 1933 Load: 26.8 t ADT: 40,758

HWY HAMMOND PD

Fair

Over: TR GREEN LINE D

.32 KM S OF BEACON ST, Middlesex, MA

Built 1933 Load: 26.8 t ADT: 28,300

ST110 /RTE3A/CHMFD

Fair

Over: RR BMRR

15.2 M E OF THORNDIKE ST, Middlesex, MA

Built 1971 Load: 26.9 t ADT: 50,300

ST 13 FITCHBURG RD

Fair

Over: WATER SQUANNACOOK RIVER

0.3 MI S OF RT 119, Middlesex, MA

Built 1971 Load: 27.0 t ADT: 8,500

HWY WASHNGTON ST

Fair

Over: I 95 /ST128

0.5 MI W OF I-93, Middlesex, MA

Built 1961 Load: 27.1 t ADT: 45,000

ST119 GREAT RD

Fair

Over: WATER BEAVER BROOK

0.2 MI. WEST OF I 495, Middlesex, MA

Built 1921 Load: 27.2 t ADT: 12,173

I 95 /ST128

Fair

Over: RR MBTA/BMRR

.32 KM SLY RTS 20 & 128, Middlesex, MA

Built 1950 Load: 27.2 t ADT: 171,900

I 95 NB/ST128 NB

Fair

Over: HWY FOREST PARK RD

1 MI NE RT 128 & RT 3A, Middlesex, MA

Built 1950 Load: 27.3 t ADT: 88,500

HWY SUDBURY RD

Fair

Over: WATER ASSABET RIVER

0.8 MI. E. OF RT. 62, Middlesex, MA

Built 1902 Load: 27.4 t ADT: 5,400

ST 2 EB

Fair

Over: HWY WALTHAM ST

1.5 MI SE RT 2 & RT 128, Middlesex, MA

Built 1965 Load: 27.5 t ADT: 42,400

ST 62 WASHNGTON ST

Fair

Over: WATER IPSWICH RIVER

0.3 MI ELY HAVERHILL ST, Middlesex, MA

Built 1947 Load: 27.5 t ADT: 12,300

I 95 /ST128

Fair

Over: HWY PARKER RD

0.9 MI NELY RT 28, Middlesex, MA

Built 1959 Load: 27.5 t ADT: 148,200

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

Related

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