US Bridges

ST 27 Pembroke ST over RR MBTA

Good

Plymouth County, Massachusetts · Mbta/Mbcr MP 32/091 · Structure no. K010044BQDOT634

Built
1958
67 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
59 ft
1 main span
Daily traffic
7,643
2024 count
Owner
State
State Highway Agency

About this bridge

ST 27 Pembroke ST over RR MBTA is a steel stringer/multi-beam or girder carrying ST 27 Pembroke ST over RR MBTA in Plymouth County, Massachusetts. It was built in 1958, so it is 67 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 7,643 vehicles a day, roughly 11% of them trucks, projected to reach 20,689 by 2031. The structure is 59 ft (18 m) long and 49 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesST 27 Pembroke ST
CrossesRR MBTA
LocationMbta/Mbcr MP 32/091
RouteState Highway 27
CountyPlymouth County
StateMassachusetts
Coordinates42.00222, -70.75274
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 inspectionJune 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating23.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length59 ft (18 m)
Longest span51 ft (15.5 m)
Deck width49 ft (15 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,643 (2024)
Projected traffic20,689 by 2031
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.1 mi (5 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$2.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 27 Pembroke ST over RR MBTA built?

It was built in 1958, making it 67 years old in 2025.

What condition is ST 27 Pembroke ST over RR MBTA 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 June 2024.

How much traffic does ST 27 Pembroke ST over RR MBTA carry?

About 7,643 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is ST 27 Pembroke ST over RR MBTA?

The structure is 59 ft (18 m) long with a longest span of 51 ft (15.5 m) and a deck 49 ft wide.

Who owns ST 27 Pembroke ST over RR MBTA?

It is owned by the State Highway Agency.