US Bridges

HWY Suffolk ST over Water Northern Canal

PoorClosed to traffic

Middlesex County, Massachusetts · French ST Ext · Structure no. L1505287QMUNNBI

Built
1848
177 years old, rebuilt 1926
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
105 ft
3 main spans
Daily traffic
—
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Suffolk ST over Water Northern Canal is a steel stringer/multi-beam or girder carrying HWY Suffolk ST over Water Northern Canal in Middlesex County, Massachusetts. It was built in 1848 and reconstructed in 1926, so it is 177 years old, older than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

No traffic count is recorded. The structure is 105 ft (32 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY Suffolk ST
CrossesWater Northern Canal
LocationFrench ST Ext
RouteCity Street 0
Coordinates42.64894, -71.31603
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourScour evaluation has not been made
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating46.2 US tons
Inventory rating28.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length105 ft (32 m)
Longest span35 ft (10.7 m)
Deck width46 ft (13.9 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic4,738 by 2018
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$7.7 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Suffolk ST over Water Northern Canal built?

It was built in 1848, making it 177 years old in 2025. It was reconstructed in 1926.

What condition is HWY Suffolk ST over Water Northern Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does HWY Suffolk ST over Water Northern Canal carry?

No traffic count is recorded for this structure.

How long is HWY Suffolk ST over Water Northern Canal?

The structure is 105 ft (32 m) long with a longest span of 35 ft (10.7 m) and a deck 46 ft wide.

Who owns HWY Suffolk ST over Water Northern Canal?

It is owned by the Town or Township Highway Agency.