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)

ST 2 CONCORD TPK

Poor

Over: WATER SUDBURY RIVER

2.8 KM SE RT 2 ROTARY, Middlesex, MA

Built 1934 Load: 64.3 t ADT: 46,700

ST119 STATE RD

Poor

Over: WATER S BR SOUHEGAN RIV

500' W. OF BREED RD., Middlesex, MA

Built 1962 Load: 99.9 t ADT: 4,097

HWY PLEASANT ST

Poor

Over: WATER SEWER CANAL

.3MI S. OF STATE 16, Middlesex, MA

Built 1904 Load: 99.9 t ADT: 2,636

HWY BEAVER ST

Structurally Deficient

Over: WATER BEAVER BROOK

0.16 KM N. OF RT. 113, Middlesex, MA

Built 1971 ADT: 3,500

US 3 /ST2&16/ALWF

Structurally Deficient

Over: TR RED LINE

.4 MI N OF CONCORD AVE, Middlesex, MA

Built 1983 Load: 11.9 t ADT: 65,948

HWY WEBSTER AVE

Structurally Deficient

Over: RR MBTA/BMRR

OVER RAILROAD, Middlesex, MA

Built 1911 Load: 17.6 t ADT: 27,350

HWY LAND BLVD

Structurally Deficient

Over: WATER BROAD CANAL

.1 MI N OF LONGFELLOW BR, Middlesex, MA

Built 1956 Load: 17.8 t ADT: 15,611

HWY BODEN LN

Structurally Deficient

Over: RR MBTA/CSX

0.1 MI N OF RT 135, Middlesex, MA

Built 1891 Load: 18.5 t ADT: 1,300

HWY LINCOLN RD

Structurally Deficient

Over: WATER SUDBURY RIVER

2 MI E OF CONCORD RD, Middlesex, MA

Built 1992 Load: 22.5 t ADT: 1,551

HWY CORDAVLLE RD

Structurally Deficient

Over: WATER SUDBURY RIVER

1.3 MI NE OF HOPKINTON, Middlesex, MA

Built 1870 Load: 23.6 t ADT: 8,091

I 495 SB

Structurally Deficient

Over: ST133 ANDOVER ST

RT 495 AT RT 133, Middlesex, MA

Built 1961 Load: 28.1 t ADT: 60,884

I 495 SB

Structurally Deficient

Over: ST 38 MAIN ST

RT 495 AT RT 38, Middlesex, MA

Built 1961 Load: 29.7 t ADT: 63,530

RANGE RD

Structurally Deficient

Over: PONAKIN BROOK TRIBUTARY

BTW LUNEBURG & SHOEFELT, Middlesex, MA

Built 2011 Load: 30.8 t ADT: 6

ST 38 MAIN ST

Structurally Deficient

Over: RR MBTA/BMRR

1.1 KM SELY RT 129, Middlesex, MA

Built 1928 Load: 31.0 t ADT: 24,600

I 495 SB

Structurally Deficient

Over: RR PAN AM

0.25 MI S OF ST-38, Middlesex, MA

Built 1961 Load: 31.4 t ADT: 62,395

I 495 SB

Structurally Deficient

Over: HWY W MAIN ST

MM 54.6, Middlesex, MA

Built 1966 Load: 34.3 t ADT: 42,766

I 495 SB

Structurally Deficient

Over: HWY BOSTON RD

0.2 MI N OF ST-110, Middlesex, MA

Built 1959 Load: 37.4 t ADT: 55,292

ST 38 NB SMITH RTY

Structurally Deficient

Over: HWY LOWELL-LWRNCE BLVD

EAST BRIDGE SMITH RTY, Middlesex, MA

Built 1954 Load: 42.3 t ADT: 13,060

HWY BOX MILL RD

Structurally Deficient

Over: WATER ELIZABETH BROOK

60M N OF BRKSD AVE, Middlesex, MA

Built 1900 Load: 49.5 t ADT: 10

HWY CHESTNUT ST

Structurally Deficient

Over: WATER IPSWICH RIVER

0.16 KM. S. OF RTE. 62, Middlesex, MA

Built 1967 Load: 72.4 t ADT: 5,200

Related

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