US Bridges

ST 28 Waquoit HWY over Water Childs River

Fair

Barnstable County, Massachusetts · 1.25 M W of Mashpee Tl · Structure no. F0300147NDOTNBI

Built
1928
97 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete
Length
33 ft
1 main span
Daily traffic
17,068
2024 count
Owner
State
State Highway Agency

About this bridge

ST 28 Waquoit HWY over Water Childs River is a concrete tee beam carrying ST 28 Waquoit HWY over Water Childs River in Barnstable County, Massachusetts. It was built in 1928, so it is 97 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.

It carries about 17,068 vehicles a day, roughly 9% of them trucks, projected to reach 29,533 by 2031. The structure is 33 ft (10.1 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesST 28 Waquoit HWY
CrossesWater Childs River
Location1.25 M W of Mashpee Tl
RouteState Highway 28
Coordinates41.58064, -70.53017
Functional classUrban Other Principal 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 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 rating73.3 US tons
Inventory rating58.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length33 ft (10.1 m)
Longest span27 ft (8.2 m)
Deck width39 ft (11.8 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,068 (2024)
Projected traffic29,533 by 2031
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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$1.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 28 Waquoit HWY over Water Childs River built?

It was built in 1928, making it 97 years old in 2025.

What condition is ST 28 Waquoit HWY over Water Childs 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 September 2024.

How much traffic does ST 28 Waquoit HWY over Water Childs River carry?

About 17,068 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is ST 28 Waquoit HWY over Water Childs River?

The structure is 33 ft (10.1 m) long with a longest span of 27 ft (8.2 m) and a deck 39 ft wide.

Who owns ST 28 Waquoit HWY over Water Childs River?

It is owned by the State Highway Agency.