US Bridges

ST 62 Main ST over Water Assabet River

Fair

Middlesex County, Massachusetts · 2.4 KM SW Rt 2 · Structure no. C190092KMDOTNBI

Built
1978
47 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
87 ft
1 main span
Daily traffic
17,300
2018 count
Owner
State
State Highway Agency

About this bridge

ST 62 Main ST over Water Assabet River is a prestressed concrete stringer/multi-beam or girder carrying ST 62 Main ST over Water Assabet River in Middlesex County, Massachusetts. It was built in 1978, so it is 47 years old, younger than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 17,300 vehicles a day, roughly 5% of them trucks, projected to reach 43,589 by 2031. The structure is 87 ft (26.5 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesST 62 Main ST
CrossesWater Assabet River
Location2.4 KM SW Rt 2
RouteState Highway 62
Coordinates42.45283, -71.40928
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating74.4 US tons
Inventory rating53.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length87 ft (26.5 m)
Longest span84 ft (25.6 m)
Deck width40 ft (12.3 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,300 (2018)
Projected traffic43,589 by 2031
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.2 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 62 Main ST over Water Assabet River built?

It was built in 1978, making it 47 years old in 2025.

What condition is ST 62 Main ST over Water Assabet River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.

How much traffic does ST 62 Main ST over Water Assabet River carry?

About 17,300 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is ST 62 Main ST over Water Assabet River?

The structure is 87 ft (26.5 m) long with a longest span of 84 ft (25.6 m) and a deck 40 ft wide.

Who owns ST 62 Main ST over Water Assabet River?

It is owned by the State Highway Agency.