US Bridges

ST 1 A/Newprt Av over Comb RR Amtrak/Mbta RD

Good

Bristol County, Massachusetts · .2 MI So I 95 Interchange · Structure no. A16032B59DOT634

Built
2011
14 years old
Condition
Good
inspected October 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
93 ft
1 main span
Daily traffic
34,933
2021 count
Owner
State
State Highway Agency

About this bridge

ST 1 A/Newprt Av over Comb RR Amtrak/Mbta RD is a steel stringer/multi-beam or girder carrying ST 1 A/Newprt Av over Comb RR Amtrak/Mbta RD in Bristol County, Massachusetts. It was built in 2011, so it is 14 years old, younger than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 34,933 vehicles a day, roughly 6% of them trucks, projected to reach 51,643 by 2032. The structure is 93 ft (28.4 m) long and 72 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesST 1 A/Newprt Av
CrossesComb RR Amtrak/Mbta RD
Location.2 MI So I 95 Interchange
RouteState Highway 1A
Coordinates41.89789, -71.35479
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating51.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length93 ft (28.4 m)
Longest span90 ft (27.4 m)
Deck width72 ft (21.9 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,933 (2021)
Projected traffic51,643 by 2032
Trucks6%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
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 statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 1 A/Newprt Av over Comb RR Amtrak/Mbta RD built?

It was built in 2011, making it 14 years old in 2025.

What condition is ST 1 A/Newprt Av over Comb RR Amtrak/Mbta RD in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2022.

How much traffic does ST 1 A/Newprt Av over Comb RR Amtrak/Mbta RD carry?

About 34,933 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is ST 1 A/Newprt Av over Comb RR Amtrak/Mbta RD?

The structure is 93 ft (28.4 m) long with a longest span of 90 ft (27.4 m) and a deck 72 ft wide.

Who owns ST 1 A/Newprt Av over Comb RR Amtrak/Mbta RD?

It is owned by the State Highway Agency.