US Bridges

HWY Shore RD over Water Back River

FairPosted for load

Barnstable County, Massachusetts · 2 MI SW of Bourne Bridge · Structure no. B1700241JMUNNBI

Built
1931
94 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
62 ft
1 main span
Daily traffic
4,571
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Shore RD over Water Back River is a steel stringer/multi-beam or girder carrying HWY Shore RD over Water Back River in Barnstable County, Massachusetts. It was built in 1931, so it is 94 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. Its operating status is: posted for load restriction.

It carries about 4,571 vehicles a day, roughly 5% of them trucks, projected to reach 18,320 by 2031. The structure is 62 ft (18.9 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHWY Shore RD
CrossesWater Back River
Location2 MI SW of Bourne Bridge
RouteCity Street 0
Coordinates41.72848, -70.61347
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
Deck7 GoodSome minor problems.
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 protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.2 US tons
Inventory rating33.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length62 ft (18.9 m)
Longest span59 ft (18 m)
Deck width48 ft (14.7 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,571 (2024)
Projected traffic18,320 by 2031
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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$2.7 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Shore RD over Water Back River built?

It was built in 1931, making it 94 years old in 2025.

What condition is HWY Shore RD over Water Back 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 August 2024.

How much traffic does HWY Shore RD over Water Back River carry?

About 4,571 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is HWY Shore RD over Water Back River?

The structure is 62 ft (18.9 m) long with a longest span of 59 ft (18 m) and a deck 48 ft wide.

Who owns HWY Shore RD over Water Back River?

It is owned by the Town or Township Highway Agency.