US Bridges

HWY Oak Blffs RD over Water Sengekontacket Inl

Good

Dukes County, Massachusetts · Edgartown/Oak Bluffs Tl · Structure no. E070018LVDOTNBI

Built
2011
14 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
244 ft
4 main spans
Daily traffic
6,214
2023 count
Owner
State
State Highway Agency

About this bridge

HWY Oak Blffs RD over Water Sengekontacket Inl is a prestressed concrete box beam or girders - multiple carrying HWY Oak Blffs RD over Water Sengekontacket Inl in Dukes County, Massachusetts. It was built in 2011, so it is 14 years old, younger 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 6,214 vehicles a day, roughly 6% of them trucks, projected to reach 12,634 by 2032. The structure is 244 ft (74.3 m) long and 52 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesHWY Oak Blffs RD
CrossesWater Sengekontacket Inl
LocationEdgartown/Oak Bluffs Tl
RouteCity Street 0
CountyDukes County
StateMassachusetts
Coordinates41.41612, -70.54876
Functional classUrban Other Principal 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
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 rating98 US tons
Inventory rating58.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length244 ft (74.3 m)
Longest span59 ft (18.1 m)
Deck width52 ft (15.8 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,214 (2023)
Projected traffic12,634 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$7.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Oak Blffs RD over Water Sengekontacket Inl built?

It was built in 2011, making it 14 years old in 2025.

What condition is HWY Oak Blffs RD over Water Sengekontacket Inl 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 August 2023.

How much traffic does HWY Oak Blffs RD over Water Sengekontacket Inl carry?

About 6,214 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is HWY Oak Blffs RD over Water Sengekontacket Inl?

The structure is 244 ft (74.3 m) long with a longest span of 59 ft (18.1 m) and a deck 52 ft wide.

Who owns HWY Oak Blffs RD over Water Sengekontacket Inl?

It is owned by the State Highway Agency.