US Bridges

HWY S Main ST over Water Bumps River

FairPosted for load

Barnstable County, Massachusetts · At Bumps River · Structure no. B0100141FMUNNBI

Built
1957
68 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete Continuous
Length
139 ft
7 main spans
Daily traffic
7,091
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY S Main ST over Water Bumps River is a concrete continuous slab carrying HWY S Main ST over Water Bumps River in Barnstable County, Massachusetts. It was built in 1957, so it is 68 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 7,091 vehicles a day, roughly 6% of them trucks, projected to reach 22,110 by 2031. The structure is 139 ft (42.4 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesHWY S Main ST
CrossesWater Bumps River
LocationAt Bumps River
RouteCity Street 0
Coordinates41.63521, -70.35801
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionJuly 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.3 US tons
Inventory rating23.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadH 20
Structure length139 ft (42.4 m)
Longest span20 ft (6.1 m)
Deck width43 ft (13.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,091 (2023)
Projected traffic22,110 by 2031
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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$5.5 million (2025 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was HWY S Main ST over Water Bumps River built?

It was built in 1957, making it 68 years old in 2025.

What condition is HWY S Main ST over Water Bumps 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 July 2024.

How much traffic does HWY S Main ST over Water Bumps River carry?

About 7,091 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is HWY S Main ST over Water Bumps River?

The structure is 139 ft (42.4 m) long with a longest span of 20 ft (6.1 m) and a deck 43 ft wide.

Who owns HWY S Main ST over Water Bumps River?

It is owned by the Town or Township Highway Agency.