US Bridges

HWY Amesbury ST over Water South Canal

PoorPosted for load

Essex County, Massachusetts · Just S of Merrimack Riv · Structure no. L040252PUMUNNBI

Built
1918
107 years old
Condition
Poor
inspected October 2024
Type
Tee Beam
Concrete
Length
70 ft
1 main span
Daily traffic
38,100
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

HWY Amesbury ST over Water South Canal is a concrete tee beam carrying HWY Amesbury ST over Water South Canal in Essex County, Massachusetts. It was built in 1918, so it is 107 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: posted for load restriction.

It carries about 38,100 vehicles a day, roughly 2% of them trucks, projected to reach 50,380 by 2031. The structure is 70 ft (21.3 m) long and 80 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY Amesbury ST
CrossesWater South Canal
LocationJust S of Merrimack Riv
RouteCity Street 0
Coordinates42.70171, -71.15958
Functional classUrban Minor Arterial

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.7 US tons
Inventory rating42.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length70 ft (21.3 m)
Longest span67 ft (20.4 m)
Deck width80 ft (24.5 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,100 (2024)
Projected traffic50,380 by 2031
Trucks2%
Lanes on structure4
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$5.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Amesbury ST over Water South Canal built?

It was built in 1918, making it 107 years old in 2025.

What condition is HWY Amesbury ST over Water South 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 October 2024.

How much traffic does HWY Amesbury ST over Water South Canal carry?

About 38,100 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is HWY Amesbury ST over Water South Canal?

The structure is 70 ft (21.3 m) long with a longest span of 67 ft (20.4 m) and a deck 80 ft wide.

Who owns HWY Amesbury ST over Water South Canal?

It is owned by the City or Municipal Highway Agency.