Middlesex County, MA
820 public highway bridges
Middlesex County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Middlesex County, Massachusetts contains 820 public highway bridges. Roughly 20.4% are rated “Good,” 61.1% “Fair,” and 8.8% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.
Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.
Source: FHWA National Bridge Inventory. See methodology for full definitions.
Condition Distribution
All Bridges (820)
ST 2 WB
UnknownOver: ST 2 EB
RT 111 AT RT 2, Middlesex, MA
HWY ARLINGTON ST
UnknownOver: ST 2 EB
1 MI NW RT 27, Middlesex, MA
HWY HAYWARD RD
UnknownOver: ST 2 WB
0.25 MI NW RT 27, Middlesex, MA
ST 27
UnknownOver: ST 2 WB
RT 27 AT RT 2, Middlesex, MA
ST 60
UnknownOver: ST 2 EB
RT 60 AT RT 2, Middlesex, MA
HWY OAK ST
UnknownOver: I 90 WB
.7MI.SO.RTE9, Middlesex, MA
ST111
UnknownOver: I 495 SB
RT 111 AT RT 495, Middlesex, MA
HWY WESTFORD ST
UnknownOver: I 495 SB
0.75 MI W RT 110, Middlesex, MA
ST 4
UnknownOver: I 495 SB
RT 4 AT RT 495, Middlesex, MA
HWY CARLISLE ST
UnknownOver: I 495 SB
1 MI E RT 3, Middlesex, MA
ST 3 A GORHAM ST
UnknownOver: I 495 SB
1.25 MI W RT495/RT3, Middlesex, MA
HWY HUNT RD
UnknownOver: I 495 SB
0.25 MI N RT 110 & HUNT, Middlesex, MA
ST 99 SB
UnknownOver: ST 16 WB
AT RT 16, Middlesex, MA
ST 99 NB
UnknownOver: ST 16 WB REV BCH PKWY
AT RT 16, Middlesex, MA
ST126 CONCORD ST
UnknownOver: ST 9 WB
RT 126 AT RT 9, Middlesex, MA
HWY MAIN ST
UnknownOver: ST 9 WB
0.75 MI W RT 9 & RT 126, Middlesex, MA
I 90 RAMPS INT 12
UnknownOver: I 90 WB
W.WAYLAND TWN LINE, Middlesex, MA
ST 9
UnknownOver: I 90 EB
AT MILE 111.5, Middlesex, MA
I 90 RAMP OFF
UnknownOver: ST 9 WB
.1MI.W.RTE9, Middlesex, MA
HWY TEMPLE ST
UnknownOver: I 90 WB
.1MI.S.PLEASANT ST, Middlesex, MA
ST 30 PLEASANT ST
UnknownOver: I 90 EB
AT MILE 113.2, Middlesex, MA
HWY GROVE ST
UnknownOver: I 90 WB
.2MI.E.PLEASANT ST, Middlesex, MA
HWY OLD CONN PTH
UnknownOver: I 90 WB
AT MILE 116.3, Middlesex, MA
I 495 SB
UnknownOver: I 90 EB
I-495 SB/ I-90, Middlesex, MA
I 495 NB
UnknownOver: I 90 EB
I-495 NB/ I-90, Middlesex, MA
HWY FRUIT ST
UnknownOver: I 495 SB
FRUIT ST/ I-495, Middlesex, MA
I 90 RAMPS
UnknownOver: I 495 SB
I-90 RAMP ON CL/ I-495, Middlesex, MA
I 90 WB RAMPS
UnknownOver: I 90 WB
.2MI.W.RTE495, Middlesex, MA
HWY SPRING ST
UnknownOver: ST 2 WB
0.5 MI SE RT 128, Middlesex, MA
HWY WATERTOWN ST
UnknownOver: ST 2 WB
0.75 MI E PLEASANT ST, Middlesex, MA
HWY WHITCOMB AVE
UnknownOver: ST 2 WB
0.75 MI NW RT 495, Middlesex, MA
HWY HARWOOD AVE
UnknownOver: I 495 SB
1 MI NE RT 2, Middlesex, MA
ST110 KING ST
UnknownOver: I 495 SB
1.5 MI NE RT 495 & RT 2, Middlesex, MA
HWY RUSSELL ST
UnknownOver: I 495 SB
0.5 MI NE RT 2A, Middlesex, MA
ST119
UnknownOver: I 495 SB
RT 119 AT RT 495, Middlesex, MA
HWY BOYLSTON ST
UnknownOver: I 495 SB
0.5 MI NE WOBURN ST, Middlesex, MA
HWY FOREST ST
UnknownOver: I 495 NB
FOREST ST/I-495, Middlesex, MA
US 20
UnknownOver: I 495 SB
US 20 EB/I-495, Middlesex, MA
HWY ELM ST
UnknownOver: I 495 NB
000063 STATUTORY, Middlesex, MA
HWY ELM ST
UnknownOver: I 495 SB
000063 STATUTORY, Middlesex, MA
ST 27
UnknownOver: ST 9 EB
RT 27 AT RT 9, Middlesex, MA
ST 9 EB RAMP OFF
UnknownOver: ST 9 WB
0.9 MI WEST RTS 27 & 9, Middlesex, MA
HWY SPEEN ST SB
UnknownOver: ST 9 EB
000079 STATUTORY, Middlesex, MA
HWY SPEEN ST SB
UnknownOver: ST 9 WB
000079 STATUTORY, Middlesex, MA
ST 30 COMM RD
UnknownOver: I 90 EB
AT MILE 117.3, Middlesex, MA
HWY ST JAMES ST
UnknownOver: I 90 EB
AT MILE 127.8, Middlesex, MA
HWY WSHNGTN ST
UnknownOver: I 90 EB
000064 STATUTORY, Middlesex, MA
ST 16 EB
UnknownOver: I 90 EB
AT MILE 125.3, Middlesex, MA
HWY CENTRE AVE
UnknownOver: I 90 WB
000064 STATUTORY, Middlesex, MA
HWY CHURCH ST
UnknownOver: I 90 WB
000064 STATUTORY, Middlesex, MA
Read our methodology - how this data is sourced, computed, and verified.
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Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.