US Bridges

HWY Plain ST over RR MBTA

Good

Norfolk County, Massachusetts · .32 KM E of ST 37 · Structure no. B2101536RDOT634

Built
1989
36 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
94 ft
1 main span
Daily traffic
2,198
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Plain ST over RR MBTA is a steel stringer/multi-beam or girder carrying HWY Plain ST over RR MBTA in Norfolk County, Massachusetts. It was built in 1989, so it is 36 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 2,198 vehicles a day, roughly 5% of them trucks, projected to reach 4,106 by 2033. The structure is 94 ft (28.7 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY Plain ST
CrossesRR MBTA
Location.32 KM E of ST 37
RouteCity Street 0
CountyNorfolk County
StateMassachusetts
Coordinates42.19678, -70.99727
Functional classRural Major Collector

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 2024
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 alignment9: Superior to present desirable criteria
Operating rating72.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length94 ft (28.7 m)
Longest span85 ft (25.8 m)
Deck width43 ft (13 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,198 (2024)
Projected traffic4,106 by 2033
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 statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Plain ST over RR MBTA built?

It was built in 1989, making it 36 years old in 2025.

What condition is HWY Plain 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 January 2024.

How much traffic does HWY Plain ST over RR MBTA carry?

About 2,198 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is HWY Plain ST over RR MBTA?

The structure is 94 ft (28.7 m) long with a longest span of 85 ft (25.8 m) and a deck 43 ft wide.

Who owns HWY Plain ST over RR MBTA?

It is owned by the State Highway Agency.