US Bridges

HWY Powder Pt Av over Water Duxbury Bay

PoorPosted for load

Plymouth County, Massachusetts · 1 MI E of Washington ST · Structure no. D14003438MUNNBI

Built
1987
38 years old
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
2,206 ft
110 main spans
Daily traffic
2,023
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Powder Pt Av over Water Duxbury Bay is a wood or timber stringer/multi-beam or girder carrying HWY Powder Pt Av over Water Duxbury Bay in Plymouth County, Massachusetts. It was built in 1987, so it is 38 years old, younger than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 2,023 vehicles a day, projected to reach 16,583 by 2031. The structure is 2,206 ft (672.4 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesHWY Powder Pt Av
CrossesWater Duxbury Bay
Location1 MI E of Washington ST
RouteCity Street 0
Coordinates42.04791, -70.64877
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 6 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating6.7 US tons
Inventory rating6.5 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans110
Design loadH 15
Structure length2,206 ft (672.4 m)
Longest span25 ft (7.6 m)
Deck width28 ft (8.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,023 (2022)
Projected traffic16,583 by 2031
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$137.2 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Powder Pt Av over Water Duxbury Bay built?

It was built in 1987, making it 38 years old in 2025.

What condition is HWY Powder Pt Av over Water Duxbury Bay in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does HWY Powder Pt Av over Water Duxbury Bay carry?

About 2,023 vehicles per day (2022 count).

How long is HWY Powder Pt Av over Water Duxbury Bay?

The structure is 2,206 ft (672.4 m) long with a longest span of 25 ft (7.6 m) and a deck 28 ft wide.

Who owns HWY Powder Pt Av over Water Duxbury Bay?

It is owned by the Town or Township Highway Agency.