US Bridges

HWY High ST over RR Mbta/Csx

Fair

Plymouth County, Massachusetts · .7 MI East of ST 28 · Structure no. B230184C8DOT634

Built
1977
48 years old
Condition
Fair
inspected January 2025
Type
Slab
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
7,759
2025 count
Owner
State
State Highway Agency

About this bridge

HWY High ST over RR Mbta/Csx is a prestressed concrete slab carrying HWY High ST over RR Mbta/Csx in Plymouth County, Massachusetts. It was built in 1977, so it is 48 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 7,759 vehicles a day, roughly 15% of them trucks, projected to reach 8,844 by 2032. The structure is 41 ft (12.5 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY High ST
CrossesRR Mbta/Csx
Location.7 MI East of ST 28
RouteCity Street 0
CountyPlymouth County
StateMassachusetts
Coordinates42.00319, -70.98042
Functional classUrban Local

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 inspectionJanuary 2025
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating31.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length41 ft (12.5 m)
Longest span39 ft (11.9 m)
Deck width41 ft (12.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,759 (2025)
Projected traffic8,844 by 2032
Trucks15%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

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

It was built in 1977, making it 48 years old in 2025.

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

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

About 7,759 vehicles per day (2025 count), of which roughly 15% are trucks.

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

The structure is 41 ft (12.5 m) long with a longest span of 39 ft (11.9 m) and a deck 41 ft wide.

Who owns HWY High ST over RR Mbta/Csx?

It is owned by the State Highway Agency.