US Bridges

HWY Plimth Plntn over HWY Clifford RD

Good

Plymouth County, Massachusetts · 1.4 M S of RTE 3 · Structure no. P130324CJDOTNBI

Built
1951
74 years old
Condition
Good
inspected May 2024
Type
Frame
Concrete
Length
44 ft
1 main span
Daily traffic
23,922
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Plimth Plntn over HWY Clifford RD is a concrete frame carrying HWY Plimth Plntn over HWY Clifford RD in Plymouth County, Massachusetts. It was built in 1951, so it is 74 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 23,922 vehicles a day, roughly 7% of them trucks, projected to reach 30,875 by 2031. The structure is 44 ft (13.5 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY Plimth Plntn
CrossesHWY Clifford RD
Location1.4 M S of RTE 3
RouteCity Street 0
Coordinates41.93761, -70.61807
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 inspectionMay 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 alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating36.4 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length44 ft (13.5 m)
Longest span41 ft (12.4 m)
Deck width47 ft (14.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,922 (2024)
Projected traffic30,875 by 2031
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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$394,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Plimth Plntn over HWY Clifford RD built?

It was built in 1951, making it 74 years old in 2025.

What condition is HWY Plimth Plntn over HWY Clifford RD 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 May 2024.

How much traffic does HWY Plimth Plntn over HWY Clifford RD carry?

About 23,922 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is HWY Plimth Plntn over HWY Clifford RD?

The structure is 44 ft (13.5 m) long with a longest span of 41 ft (12.4 m) and a deck 47 ft wide.

Who owns HWY Plimth Plntn over HWY Clifford RD?

It is owned by the State Highway Agency.