US Bridges

HWY W Squantm ST over HWY Newport Ave

Fair

Norfolk County, Massachusetts · At N. Quincy T Station · Structure no. Q01003B2RMBTNBI

Built
1969
56 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
91 ft
2 main spans
Daily traffic
28,200
2023 count
Owner
State
Other State Agency

About this bridge

HWY W Squantm ST over HWY Newport Ave is a steel stringer/multi-beam or girder carrying HWY W Squantm ST over HWY Newport Ave in Norfolk County, Massachusetts. It was built in 1969, so it is 56 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 28,200 vehicles a day, roughly 3% of them trucks, projected to reach 51,327 by 2032. The structure is 91 ft (27.7 m) long and 63 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHWY W Squantm ST
CrossesHWY Newport Ave
LocationAt N. Quincy T Station
RouteCity Street 0
CountyNorfolk County
StateMassachusetts
Coordinates42.27455, -71.02965
Functional classUrban Minor 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating56.7 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length91 ft (27.7 m)
Longest span62 ft (19 m)
Deck width63 ft (19.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,200 (2023)
Projected traffic51,327 by 2032
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther State Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$5.2 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY W Squantm ST over HWY Newport Ave built?

It was built in 1969, making it 56 years old in 2025.

What condition is HWY W Squantm ST over HWY Newport Ave 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 June 2023.

How much traffic does HWY W Squantm ST over HWY Newport Ave carry?

About 28,200 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is HWY W Squantm ST over HWY Newport Ave?

The structure is 91 ft (27.7 m) long with a longest span of 62 ft (19 m) and a deck 63 ft wide.

Who owns HWY W Squantm ST over HWY Newport Ave?

It is owned by the Other State Agency and maintained by the State Highway Agency.