US Bridges

HWY Bridge ST over Water Nemasket River

Fair

Plymouth County, Massachusetts · 0.7 M East of RTE 105 · Structure no. L0101244EMUNNBI

Built
1968
57 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete Continuous
Length
81 ft
4 main spans
Daily traffic
2,714
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Bridge ST over Water Nemasket River is a concrete continuous slab carrying HWY Bridge ST over Water Nemasket River in Plymouth County, Massachusetts. It was built in 1968, so it is 57 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 2,714 vehicles a day, roughly 24% of them trucks, projected to reach 5,054 by 2031. The structure is 81 ft (24.7 m) long and 41 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesHWY Bridge ST
CrossesWater Nemasket River
Location0.7 M East of RTE 105
RouteCity Street 0
Coordinates41.87099, -70.91341
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.1 US tons
Inventory rating33.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length81 ft (24.7 m)
Longest span21 ft (6.4 m)
Deck width41 ft (12.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,714 (2024)
Projected traffic5,054 by 2031
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$3.1 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Bridge ST over Water Nemasket River built?

It was built in 1968, making it 57 years old in 2025.

What condition is HWY Bridge ST over Water Nemasket 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 March 2024.

How much traffic does HWY Bridge ST over Water Nemasket River carry?

About 2,714 vehicles per day (2024 count), of which roughly 24% are trucks.

How long is HWY Bridge ST over Water Nemasket River?

The structure is 81 ft (24.7 m) long with a longest span of 21 ft (6.4 m) and a deck 41 ft wide.

Who owns HWY Bridge ST over Water Nemasket River?

It is owned by the Town or Township Highway Agency.