US Bridges

HWY Plimth Plntn over Water Eel River

Fair

Plymouth County, Massachusetts · 1.5 M E of RTE 3 · Structure no. P130254CKDOTNBI

Built
1951
74 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
87 ft
3 main spans
Daily traffic
25,600
2023 count
Owner
State
State Highway Agency

About this bridge

HWY Plimth Plntn over Water Eel River is a concrete continuous slab carrying HWY Plimth Plntn over Water Eel River 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 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 25,600 vehicles a day, roughly 7% of them trucks, projected to reach 24,163 by 2032. The structure is 87 ft (26.5 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHWY Plimth Plntn
CrossesWater Eel River
Location1.5 M E of RTE 3
CountyPlymouth County
StateMassachusetts
Coordinates41.9374, -70.61916
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating42.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length87 ft (26.5 m)
Longest span28 ft (8.5 m)
Deck width47 ft (14.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,600 (2023)
Projected traffic24,163 by 2032
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$3.8 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Plimth Plntn over Water Eel River built?

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

What condition is HWY Plimth Plntn over Water Eel River 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 June 2023.

How much traffic does HWY Plimth Plntn over Water Eel River carry?

About 25,600 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is HWY Plimth Plntn over Water Eel River?

The structure is 87 ft (26.5 m) long with a longest span of 28 ft (8.5 m) and a deck 47 ft wide.

Who owns HWY Plimth Plntn over Water Eel River?

It is owned by the State Highway Agency.