US Bridges

HWY Sandwich RD over HWY Plimoth Plntn HWY

Good

Plymouth County, Massachusetts · 1.5 M S of RTE 3A · Structure no. P130304B3DOTNBI

Built
1950
75 years old
Condition
Good
inspected January 2024
Type
Frame
Concrete Continuous
Length
120 ft
2 main spans
Daily traffic
3,100
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Sandwich RD over HWY Plimoth Plntn HWY is a concrete continuous frame carrying HWY Sandwich RD over HWY Plimoth Plntn HWY in Plymouth County, Massachusetts. It was built in 1950, so it is 75 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 3,100 vehicles a day, roughly 13% of them trucks, projected to reach 3,948 by 2033. The structure is 120 ft (36.6 m) long and 37 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesHWY Sandwich RD
CrossesHWY Plimoth Plntn HWY
Location1.5 M S of RTE 3A
RouteCity Street 0
Coordinates41.93391, -70.62979
Functional classUrban 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.2 US tons
Inventory rating34.8 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length120 ft (36.6 m)
Longest span56 ft (17.1 m)
Deck width37 ft (11.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,100 (2024)
Projected traffic3,948 by 2033
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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$4.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Sandwich RD over HWY Plimoth Plntn HWY built?

It was built in 1950, making it 75 years old in 2025.

What condition is HWY Sandwich RD over HWY Plimoth Plntn HWY 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 Sandwich RD over HWY Plimoth Plntn HWY carry?

About 3,100 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is HWY Sandwich RD over HWY Plimoth Plntn HWY?

The structure is 120 ft (36.6 m) long with a longest span of 56 ft (17.1 m) and a deck 37 ft wide.

Who owns HWY Sandwich RD over HWY Plimoth Plntn HWY?

It is owned by the State Highway Agency.