Plymouth County, MA

287 public highway bridges

Plymouth County Bridge Snapshot

Plymouth County, Massachusetts contains 287 public highway bridges in the FHWA National Bridge Inventory. Roughly 29.6% are rated “Good,” 59.6% “Fair,” 5.6% “Poor,” and 5.6% 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.

287
Total Bridges
29.6%
Good
5.6%
Poor
5.6%
Structurally Deficient

Condition Distribution

Good
29.6% (85)
Fair
59.6% (171)
Poor
5.6% (16)
SD
5.6% (16)

All Bridges (287)

ST 18 BEDFORD ST

Good

Over: WATER MATFIELD RIVER

0.1 M S OF RTE 106, Plymouth, MA

Built 1880 Load: 54.9 t ADT: 20,330

HWY SEA ST

Good

Over: WATER SOUTH RIVER

MARSHFIELD-SCITUATE LINE, Plymouth, MA

Built 2010 Load: 54.9 t ADT: 4,009

HWY SOUTH ST

Good

Over: WATER TOWN RIVER

ADJACENT TO RIVER AVE, Plymouth, MA

Built 2008 Load: 55.6 t ADT: 7,888

ST 3 NB/PLGRM HWY

Good

Over: WATER EEL RIVER

4.25 M S OF RTE 44, Plymouth, MA

Built 1955 Load: 55.7 t ADT: 45,000

ST 3 SB/PLGRM HWY

Good

Over: WATER EEL RIVER

4.25 M S OF RTE 44, Plymouth, MA

Built 1955 Load: 55.7 t ADT: 43,577

HWY PERKINS AVE

Good

Over: WATER SALISBURY PLAIN R

.25 MI E OF RTE 28, Plymouth, MA

Built 1995 Load: 56.4 t ADT: 7,629

HWY ALLEN ST

Good

Over: WATER SALISBURY BROOK

AT MAIN ST, Plymouth, MA

Built 2002 Load: 57.0 t ADT: 2,068

HWY HIGHLAND RD

Good

Over: ST140 NB

1.2 MI NE OF COUNTY ST, Plymouth, MA

Built 1958 Load: 57.3 t ADT: 10,300

HWY SUMMER ST

Good

Over: RR MBTA/CSX

.2 MI W OF FLAGG ST, Plymouth, MA

Built 1984 Load: 58.1 t ADT: 4,100

HWY ELM ST

Good

Over: WATER JONES RIVER

.15 MI S OF RTE 27, Plymouth, MA

Built 2014 Load: 58.3 t ADT: 5,043

HWY STATE ST

Good

Over: WATER INDIAN HEAD RIVER

AT HANOVER LINE, Plymouth, MA

Built 1995 Load: 60.2 t ADT: 4,397

HWY HIGHLAND RD

Good

Over: ST140 SB

1.2 MI NE OF COUNTY ST, Plymouth, MA

Built 1969 Load: 60.7 t ADT: 10,300

ST 25 EB

Good

Over: WATER MILL POND

.1 M W OF GLEN CHARLIE RD, Plymouth, MA

Built 1981 Load: 61.0 t ADT: 38,664

ST106 WAPPING RD

Good

Over: WATER JONES RIVER

1.2 MI WEST OF ST 3 A, Plymouth, MA

Built 1971 Load: 62.3 t ADT: 7,800

ST123 BELMONT ST

Good

Over: ST 24

.1 MI W OF VA HOSPITAL, Plymouth, MA

Built 1954 Load: 62.5 t ADT: 29,214

HWY JULIAN ST

Good

Over: WATER SOUTH RIVER

EAST OF BAYBERRY ROAD, Plymouth, MA

Built 2010 Load: 66.4 t ADT: 786

HWY TAYLOR AVE

Good

Over: WATER BEAVER DAM BROOK

.1MI W OF SHORT ST, Plymouth, MA

Built 2019 Load: 74.5 t ADT: 3,800

HWY FOREST ST

Good

Over: WATER SALISBURY PLAIN R

.1 MI SOUTH OF PERKINS ST, Plymouth, MA

Built 1999 Load: 78.8 t ADT: 714

HWY COUNTRY WAY

Good

Over: WATER BOUND BROOK

0.125 KM NW OF GANNETT RD, Plymouth, MA

Built 2008 Load: 79.6 t ADT: 5,560

HWY BROADWAY

Good

Over: WATER INDIAN HEAD RIVER

AT HANSON LINE, Plymouth, MA

Built 2010 Load: 99.9 t ADT: 12,543

US 6 EB/ST28 SB

Good

Over: WATER AGAWAM RIVER

.2 MI W OF DEPOT ST, Plymouth, MA

Built 1949 Load: 99.9 t ADT: 28,448

HWY WEST ST

Poor

Over: ST 24

.8 MI NORTH OF ST106, Plymouth, MA

Built 1953 Load: 18.4 t ADT: 5,571

HWY WALNUT ST

Poor

Over: ST 24

.2 MI EAST OF MANLEY ROAD, Plymouth, MA

Built 1953 Load: 21.0 t ADT: 1,966

US 6 MARION RD

Poor

Over: WATER WEWEANTIC RIVER

2 MI E OF RTE 105, Plymouth, MA

Built 1929 Load: 23.6 t ADT: 8,832

HWY RIVER ST

Poor

Over: HWY PLIMOTH PLNTN HWY

1.13 KM W OF RTE 3A, Plymouth, MA

Built 1951 Load: 24.6 t ADT: 5,200

ST 3 NB

Poor

Over: WATER NORTH RIVER

AT NORWELL PEMBROKE TL, Plymouth, MA

Built 1961 Load: 24.9 t ADT: 37,081

ST 3 SB

Poor

Over: WATER NORTH RIVER

AT NORWELL PEMBROKE TL, Plymouth, MA

Built 1961 Load: 24.9 t ADT: 32,900

HWY VERNON ST

Poor

Over: WATER TAUNTON RIVER

BWATER/MIDDLEBORO LINE, Plymouth, MA

Built 1956 Load: 28.8 t ADT: 1,930

US 6 WAREHAM ROAD

Poor

Over: WATER WEWEANTIC RIVER

AT WAREHAM MARION TL, Plymouth, MA

Built 1929 Load: 28.8 t ADT: 11,379

ST 3 NB/PLGRM HWY

Poor

Over: HWY FRANKLIN ST

2 MI E OF PEMBROKE TL, Plymouth, MA

Built 1962 Load: 32.1 t ADT: 34,314

ST 3 SB/PLGRM HWY

Poor

Over: HWY FRANKLIN ST

2 MI E OF PEMBROKE TL, Plymouth, MA

Built 1962 Load: 32.1 t ADT: 35,142

US 44 HARDING ST

Poor

Over: RR MBTA/CSX

.5 M W OF EVERETT ST, Plymouth, MA

Built 1963 Load: 33.0 t ADT: 31,681

HWY POND STREET

Poor

Over: WATER SATUCKET RIVER

1 MI. EAST OF ST 106, Plymouth, MA

Built 1850 Load: 45.8 t ADT: 2,974

HWY FOREST ST

Structurally Deficient

Over: WATER TOWN RIVER

.01 M FROM RIVER ST, Plymouth, MA

Built 1968 ADT: 776

HWY POWDER PT AV

Structurally Deficient

Over: WATER DUXBURY BAY

1 MI E OF WASHINGTON ST, Plymouth, MA

Built 1987 Load: 5.9 t ADT: 1,950

HWY FEARING HILL

Structurally Deficient

Over: WATER WEWEANTIC RIVER

JUST N OF HORSESHOE POND, Plymouth, MA

Built 1900 Load: 25.4 t ADT: 9,300

HWY CENTRAL ST

Structurally Deficient

Over: WATER SHUMATUSCACANT RIV

.5 MI E OF RTE 18, Plymouth, MA

Built 1956 Load: 42.8 t ADT: 71,009

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