State profile · Near national median SD

Massachusetts bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Massachusetts — drawn straight from the FHWA National Bridge Inventory.

5,314
Public bridges
24.9%
Good condition
8.0%
Poor condition
8.0%
Structurally deficient

Total Bridges

5,314

Public highway bridges in Massachusetts

Good Condition

24.9%

1,323 bridges rated 7-9

-25.1pp vs 50% benchmark

Poor Condition

8.0%

423 bridges rated 0-4

Structurally Deficient

8.0%

423 bridges flagged for repair priority

1.0pp vs national avg 7.0%

Massachusetts vs national bridge condition

Massachusetts — Good condition share 24.9%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Massachusetts — Structurally deficient share 26.5%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Bridge inventory deck-condition mix — Massachusetts (FHWA NBI)

Massachusetts24.89649981181784%60.143018441851716%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — Massachusetts (FHWA NBI)

Massachusetts vs nearby ranks

Adjacent states on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Massachusetts on the same metric.

31

Nebraska

7.73% top marginal rate
Structure
Progressive
Burden @ $100K
$15,571

17

Illinois

7.88% top marginal rate
Structure
Progressive
Burden @ $100K
$27,743
Selected

25

Massachusetts

7.96% top marginal rate
Structure
Progressive
Burden @ $100K
$5,314

29

Missouri

8.53% top marginal rate
Structure
Progressive
Burden @ $100K
$24,654

26

Michigan

8.92% top marginal rate
Structure
Progressive
Burden @ $100K
$1,188

Bridges Needing Most Attention in Massachusetts

Six lowest-condition bridges in Massachusetts, ranked by composite NBI rating. Each is inspected at least every 24 months.

All Bridges in Massachusetts

ST131 STHBRDGE ST

Structurally Deficient

Over: WATER QUINEBAUG RIVER

0.4 MI N OF THOM. CT. T.L, Worcester, MA

Built 1938 Load: 40.3 t ADT: 6,839

ST117 MAIN ST

Structurally Deficient

Over: WATER STILL RIVER

.1 MI E LANCASTER TWN LN, Worcester, MA

Built 1937 Load: 40.8 t ADT: 16,425

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 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

HWY BALCOM ST

Structurally Deficient

Over: WATER WADING RIVER

.4 MI NE OF GILBERT ST, Bristol, MA

Built 1910 Load: 43.4 t ADT: 1,540

HWY E NEW LENOX

Structurally Deficient

Over: WATER SACKETT BROOK

.7 MI S OF WILLIAM ST, Berkshire, MA

Built 1936 Load: 48.5 t ADT: 3,621

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 TRNRS FLS RD

Structurally Deficient

Over: WATER CONNECTICUT RIVER

235' NW OF CANAL ST, Franklin, MA

Built 1936 Load: 51.2 t ADT: 7,136

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

HWY PINEY LN

Structurally Deficient

Over: WATER BROAD BROOK

410' E OF INT ALDEN ST, Hampden, MA

Built 1952 Load: 99.9 t ADT: 50

HWY MAIN ST LEED

Structurally Deficient

Over: WATER N CHANNEL MILL RIV

200' N OF ARCH ST, Hampshire, MA

Built 1850 Load: 99.9 t ADT: 2,008

HWY RHODES ST

Structurally Deficient

Over: WATER SINGLETARY BROOK

.1 MI S OF W. MAIN ST, Worcester, MA

Built 1975 Load: 99.9 t ADT: 400

HWY CENTECH BLVD

Structurally Deficient

Over: WATER PRATTS POND INLET

.45 MI S OF US-20, Worcester, MA

Built 2004 Load: 99.9 t ADT: 4,147

HWY JUNE ST

Structurally Deficient

Over: WATER TATNUCK BROOK

.1 MI. E. OF MILL ST, Worcester, MA

Built 1905 Load: 99.9 t ADT: 10,600

Showing 5,301-5,314 of 5,314 bridges

Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.