Bridge Safety in Massachusetts
5,311 bridges — 501 Poor condition — avg age 64 years.
Bridge Inventory
| Total Bridges | 5,311 |
| Good Condition | 1,291 |
| Fair Condition | 3,519 |
| Poor Condition | 501 |
| Oldest Bridge | Built 1764 |
| Average Age | 64 years |
Condition Summary
| % Good | 24.3% |
| % Fair | 66.3% |
| % Poor | 9.4% |
Highest-Traffic Poor Condition Bridges in Massachusetts
Poor condition bridges sorted by daily traffic — the most urgent safety concerns.
| Bridge | Condition | Year Built | ADT | Length |
|---|---|---|---|---|
| HWY UNION ST N ROTARY | Poor | 1957 | 204,310 | — |
| I 95 /ST128 | Poor | 1957 | 200,824 | — |
| RR MBTA/BMRR | Poor | 1950 | 192,672 | — |
| ST 16 MYST VAL PKY | Poor | 1960 | 182,420 | — |
| HWY QUINOBEQUIN RD | Poor | 1950 | 142,579 | — |
| I 95 /ST128 | Poor | 1963 | 140,655 | — |
| HWY MASSACHUSETTS AVE | Poor | 1963 | 124,334 | — |
| WATER MERRIMACK RIVER | Poor | 1959 | 119,818 | — |
| RR CSX | Poor | 1957 | 114,872 | — |
| ST 24 NB | Poor | 1958 | 101,100 | — |
| TR GREEN LINE D | Poor | 1905 | 96,206 | — |
| ST 28 SB/N MAIN ST | Poor | 1962 | 95,100 | — |
| ST 3 A/CAMBRIDGE ST | Poor | 1950 | 93,600 | — |
| COMB BMRR & LITTLE RIV | Poor | 1961 | 93,469 | — |
| COMB BMRR & LITTLE RIV | Poor | 1961 | 93,469 | — |
| HWY S BEDFORD ST | Poor | 1950 | 92,706 | — |
| WATER SAUGUS RIVER | Poor | 1934 | 85,600 | — |
| I 495 | Poor | 1962 | 84,000 | — |
| WATER CHARLES RIVER | Poor | 1957 | 80,100 | — |
| WATER MERRIMACK RIVER | Poor | 1962 | 79,000 | — |
Oldest Bridges in Massachusetts
| Bridge | Condition | Year Built | Age | ADT |
|---|---|---|---|---|
| WATER IPSWICH RIVER | Fair | 1764 | 262 yrs | 26,250 |
| WATER NEPONSET RIVER | Fair | 1765 | 261 yrs | 32,845 |
| WATER ASSONET RIVER | Fair | 1822 | 204 yrs | 14,094 |
| WATER MERRIMACK CANAL | Fair | 1823 | 203 yrs | 18,000 |
| WATER PASKAMANSETT RIVER | Fair | 1826 | 200 yrs | 9,957 |
| WATER WESTERN CANAL | Fair | 1831 | 195 yrs | 17,900 |
| WATER IPSWICH RIVER | Fair | 1833 | 193 yrs | 4,100 |
| WATER WESTERN CANAL | Fair | 1833 | 193 yrs | 6,600 |
| WATER LWR PAWTUCKET CNL | Good | 1835 | 191 yrs | 12,184 |
| WATER EASTERN CANAL | Fair | 1835 | 191 yrs | 16,900 |
Bridge Safety in Massachusetts
Bridge condition data for Massachusetts comes from the FHWA National Bridge Inventory. All publicly accessible bridges with a span over 20 feet are inspected at least every 24 months by certified bridge inspectors.