US Bridges

ST 3 over Water Mill River

Fair

Norfolk County, Massachusetts · 1.4 KM E Braintree T.L. · Structure no. W32027353DOTNBI

Built
1957
68 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
30 ft
1 main span
Daily traffic
133,089
2023 count
Owner
State
State Highway Agency

About this bridge

ST 3 over Water Mill River is a concrete culvert carrying ST 3 over Water Mill River in Norfolk 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 6 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 133,089 vehicles a day, roughly 7% of them trucks, projected to reach 236,895 by 2032. The structure is 30 ft (9.1 m) long and 154 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesST 3
CrossesWater Mill River
Location1.4 KM E Braintree T.L.
RouteState Highway 3
CountyNorfolk County
StateMassachusetts
Coordinates42.19481, -70.95638
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating28.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width154 ft (46.9 m)
Roadway width134 ft (40.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic133,089 (2023)
Projected traffic236,895 by 2032
Trucks7%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
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$3.6 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 3 over Water Mill River built?

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

What condition is ST 3 over Water Mill 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 January 2025.

How much traffic does ST 3 over Water Mill River carry?

About 133,089 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is ST 3 over Water Mill River?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 154 ft wide.

Who owns ST 3 over Water Mill River?

It is owned by the State Highway Agency.