US Bridges

Massachusetts bridges

Massachusetts reports 5,310 bridges and culverts across 14 counties. 501 (9.4%) are rated in poor condition, and 503 are posted with load limits or closed. The oldest structure still in the inventory dates from 1764.

Bridges
5,310
Counties
14
Good
24%
Fair
66%
Poor
9%
501 bridges
Average age
63.8 yrs

Find a bridge in Massachusetts

Type at least two characters, or pick a condition or type, to search every bridge in the state.

Counties

Circle size reflects the number of bridges

Condition

9%poor
Good24%(1,290)
Fair66%(3,519)
Poor9%(501)

Counties with the highest share of poor bridges

Poor-condition bridgesFairGood

Structure types

Structure typeBridgesShare
Stringer/Multi-beam or Girder2,87554.1%
Slab62611.8%
Culvert3406.4%
Arch - Deck3035.7%
Box Beam or Girders - Multiple2354.4%
Tee Beam2294.3%
Box Beam or Girders - Single or Spread2003.8%
Frame1923.6%
Girder and Floorbeam System1052.0%
Truss - Thru861.6%
Segmental Box Girder611.1%
Movable - Bascule170.3%
Truss - Deck150.3%
Arch - Thru110.2%
Movable - Swing60.1%
Stayed Girder20.0%
Movable - Lift20.0%
Mixed Types20.0%
Suspension10.0%
Channel Beam10.0%
Other10.0%

When Massachusetts's bridges were built

<1900: 267 bridges267<19001900s: 179 bridges17919001910s: 109 bridges10919101920s: 156 bridges15619201930s: 463 bridges46319301940s: 206 bridges20619401950s: 1,165 bridges1.2k19501960s: 915 bridges91519601970s: 397 bridges39719701980s: 246 bridges24619801990s: 310 bridges31019902000s: 503 bridges50320002010s: 296 bridges29620102020s: 98 bridges982020
Bridges built per decade. Year built as recorded in the inventory; reconstruction years are not included.

Busiest

  1. I 93 over ST 60 Eb/Salem ST
    Middlesex County · 266,500 vehicles/day
    Fair
  2. I 93 over ST 60 Wb/Salem ST
    Middlesex County · 266,500 vehicles/day
    Fair
  3. I 93 over Water Mystic River
    Middlesex County · 250,350 vehicles/day
    Fair
  4. ST 3 over Water Monatiquot River
    Norfolk County · 236,250 vehicles/day
    Fair
  5. ST 3 over HWY Summer ST
    Norfolk County · 236,250 vehicles/day
    Fair

Longest

  1. I 195 over Comb ST79 & Taunton Riv
    Bristol County · 5,780 ft
    Fair
  2. US 1 Sb/Uppr Deck over US 1 Nb/Chel Lwr Deck
    Suffolk County · 3,349 ft
    Poor
  3. I 91 & Rmps L & M over I 291 & City Sts
    Hampden County · 3,197 ft
    Fair
  4. US 1 Nb/Low Deck over HWY Chelsea Local Stre
    Suffolk County · 2,829 ft
    Poor
  5. I 391 & Ramps Abcd over Comb Main ST & Pvrr
    Hampden County · 2,559 ft
    Fair

Oldest

  1. ST 1 A/S Main ST over Water Ipswich River
    Essex County · Built 1764
    Fair
  2. HWY Adams ST over Water Neponset River
    Suffolk County · Built 1765
    Fair
  3. ST 79 Elm ST over Water Assonet River
    Bristol County · Built 1822
    Fair
  4. HWY Merrimack ST over Water Merrimack Canal
    Middlesex County · Built 1823
    Fair
  5. HWY Russells Mil over Water Paskamansett River
    Bristol County · Built 1826
    Fair

Newest

  1. ST 1 A/Main ST over Water Neponset River
    Norfolk County · Built 2025
    Good
  2. ST 79 NB over RR Southern U-Turn
    Bristol County · Built 2024
    Good
  3. I 91 NB over RR Gwrr
    Franklin County · Built 2024
    Good
  4. I 91 SB over HWY Hockanum RD
    Hampshire County · Built 2024
    Good
  5. HWY Dedham ST over I 95
    Norfolk County · Built 2024
    Good

Who owns Massachusetts's bridges

State3,59367.7%
Town / Township1,35525.5%
City3366.3%
Federal180.3%
Private30.1%
Toll Authority30.1%
Local20.0%

More Massachusetts facts

Total bridge length147 miles
Total deck area44,900,102 sq ft
Culverts counted as bridges340 (6%)
On the National Highway System2,309
Posted with load limits459
Closed to traffic44
Listed or eligible for the National Register162
Average daily traffic per bridge20,615 vehicles
Newest structure2025