Middlesex County, MA
820 public highway bridges
Middlesex County Bridge Snapshot
Middlesex County, Massachusetts contains 820 public highway bridges in the FHWA National Bridge Inventory. Roughly 20.4% are rated “Good,” 61.1% “Fair,” 8.8% “Poor,” and 8.8% 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.
Condition Distribution
All Bridges (820)
ST 2 CONCORD TPK
PoorOver: WATER SUDBURY RIVER
2.8 KM SE RT 2 ROTARY, Middlesex, MA
ST119 STATE RD
PoorOver: WATER S BR SOUHEGAN RIV
500' W. OF BREED RD., Middlesex, MA
HWY PLEASANT ST
PoorOver: WATER SEWER CANAL
.3MI S. OF STATE 16, Middlesex, MA
HWY BEAVER ST
Structurally DeficientOver: WATER BEAVER BROOK
0.16 KM N. OF RT. 113, Middlesex, MA
US 3 /ST2&16/ALWF
Structurally DeficientOver: TR RED LINE
.4 MI N OF CONCORD AVE, Middlesex, MA
HWY WEBSTER AVE
Structurally DeficientOver: RR MBTA/BMRR
OVER RAILROAD, Middlesex, MA
HWY LAND BLVD
Structurally DeficientOver: WATER BROAD CANAL
.1 MI N OF LONGFELLOW BR, Middlesex, MA
HWY BODEN LN
Structurally DeficientOver: RR MBTA/CSX
0.1 MI N OF RT 135, Middlesex, MA
HWY LINCOLN RD
Structurally DeficientOver: WATER SUDBURY RIVER
2 MI E OF CONCORD RD, Middlesex, MA
HWY CORDAVLLE RD
Structurally DeficientOver: WATER SUDBURY RIVER
1.3 MI NE OF HOPKINTON, Middlesex, MA
I 495 SB
Structurally DeficientOver: ST133 ANDOVER ST
RT 495 AT RT 133, Middlesex, MA
I 495 SB
Structurally DeficientOver: ST 38 MAIN ST
RT 495 AT RT 38, Middlesex, MA
RANGE RD
Structurally DeficientOver: PONAKIN BROOK TRIBUTARY
BTW LUNEBURG & SHOEFELT, Middlesex, MA
ST 38 MAIN ST
Structurally DeficientOver: RR MBTA/BMRR
1.1 KM SELY RT 129, Middlesex, MA
I 495 SB
Structurally DeficientOver: RR PAN AM
0.25 MI S OF ST-38, Middlesex, MA
I 495 SB
Structurally DeficientOver: HWY W MAIN ST
MM 54.6, Middlesex, MA
I 495 SB
Structurally DeficientOver: HWY BOSTON RD
0.2 MI N OF ST-110, Middlesex, MA
ST 38 NB SMITH RTY
Structurally DeficientOver: HWY LOWELL-LWRNCE BLVD
EAST BRIDGE SMITH RTY, Middlesex, MA
HWY BOX MILL RD
Structurally DeficientOver: WATER ELIZABETH BROOK
60M N OF BRKSD AVE, Middlesex, MA
HWY CHESTNUT ST
Structurally DeficientOver: WATER IPSWICH RIVER
0.16 KM. S. OF RTE. 62, Middlesex, MA
Read our methodology — how this data is sourced, computed, and verified.
Related
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |