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 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.

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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.