US Bridges

HWY Center ST over RR Mbta/Csx

Good

Plymouth County, Massachusetts · Adjacent to Cambridge St. · Structure no. M180144BXDOT634

Built
1899
126 years old, rebuilt 1997
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
63 ft
1 main span
Daily traffic
5,286
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Center ST over RR Mbta/Csx is a prestressed concrete box beam or girders - multiple carrying HWY Center ST over RR Mbta/Csx in Plymouth County, Massachusetts. It was built in 1899 and reconstructed in 1997, so it is 126 years old, older 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 5,286 vehicles a day, roughly 5% of them trucks, projected to reach 18,162 by 2032. The structure is 63 ft (19.2 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesHWY Center ST
CrossesRR Mbta/Csx
LocationAdjacent to Cambridge St.
RouteCity Street 0
CountyPlymouth County
StateMassachusetts
Coordinates41.89436, -70.91964
Functional classUrban Minor 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 inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating85.6 US tons
Inventory rating51.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length63 ft (19.2 m)
Longest span53 ft (16.2 m)
Deck width46 ft (14.1 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,286 (2024)
Projected traffic18,162 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Center ST over RR Mbta/Csx built?

It was built in 1899, making it 126 years old in 2025. It was reconstructed in 1997.

What condition is HWY Center ST over RR Mbta/Csx 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 January 2025.

How much traffic does HWY Center ST over RR Mbta/Csx carry?

About 5,286 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is HWY Center ST over RR Mbta/Csx?

The structure is 63 ft (19.2 m) long with a longest span of 53 ft (16.2 m) and a deck 46 ft wide.

Who owns HWY Center ST over RR Mbta/Csx?

It is owned by the State Highway Agency.