US Bridges

US 6 Eb/Md Cp HWY over Water Bass River

Fair

Barnstable County, Massachusetts · At Dennis Yarmouth Tl · Structure no. D0701246NDOTNBI

Built
1970
55 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
156 ft
7 main spans
Daily traffic
26,431
2018 count
Owner
State
State Highway Agency

About this bridge

US 6 Eb/Md Cp HWY over Water Bass River is a concrete continuous slab carrying US 6 Eb/Md Cp HWY over Water Bass River in Barnstable County, Massachusetts. It was built in 1970, so it is 55 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 26,431 vehicles a day, roughly 8% of them trucks, projected to reach 82,913 by 2032. The structure is 156 ft (47.5 m) long and 45 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesUS 6 Eb/Md Cp HWY
CrossesWater Bass River
LocationAt Dennis Yarmouth Tl
RouteU.S. Route 6
CountyBarnstable County
StateMassachusetts
Coordinates41.69371, -70.16972
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.1 US tons
Inventory rating43.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadH 20
Structure length156 ft (47.5 m)
Longest span26 ft (7.9 m)
Deck width45 ft (13.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,431 (2018)
Projected traffic82,913 by 2032
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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$6.4 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 6 Eb/Md Cp HWY over Water Bass River built?

It was built in 1970, making it 55 years old in 2025.

What condition is US 6 Eb/Md Cp HWY over Water Bass 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 April 2024.

How much traffic does US 6 Eb/Md Cp HWY over Water Bass River carry?

About 26,431 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is US 6 Eb/Md Cp HWY over Water Bass River?

The structure is 156 ft (47.5 m) long with a longest span of 26 ft (7.9 m) and a deck 45 ft wide.

Who owns US 6 Eb/Md Cp HWY over Water Bass River?

It is owned by the State Highway Agency.