US Bridges

ST 3 A/S Artery over Water Town Riv Bay Canal

Good

Norfolk County, Massachusetts · .8 KM NW of JCT SR 53 · Structure no. Q010163F5DOTNBI

Built
1994
31 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
53 ft
3 main spans
Daily traffic
42,802
2024 count
Owner
State
State Highway Agency

About this bridge

ST 3 A/S Artery over Water Town Riv Bay Canal is a concrete culvert carrying ST 3 A/S Artery over Water Town Riv Bay Canal in Norfolk County, Massachusetts. It was built in 1994, so it is 31 years old, younger than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 42,802 vehicles a day, roughly 2% of them trucks, projected to reach 71,068 by 2031. The structure is 53 ft (16.3 m) long and 295 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesST 3 A/S Artery
CrossesWater Town Riv Bay Canal
Location.8 KM NW of JCT SR 53
RouteState Highway 3A
Coordinates42.25231, -70.9898
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating75 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length53 ft (16.3 m)
Longest span16 ft (4.9 m)
Deck width295 ft (89.9 m)
Roadway width66 ft (20 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42,802 (2024)
Projected traffic71,068 by 2031
Trucks2%
Lanes on structure4
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.1 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 3 A/S Artery over Water Town Riv Bay Canal built?

It was built in 1994, making it 31 years old in 2025.

What condition is ST 3 A/S Artery over Water Town Riv Bay Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does ST 3 A/S Artery over Water Town Riv Bay Canal carry?

About 42,802 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is ST 3 A/S Artery over Water Town Riv Bay Canal?

The structure is 53 ft (16.3 m) long with a longest span of 16 ft (4.9 m) and a deck 295 ft wide.

Who owns ST 3 A/S Artery over Water Town Riv Bay Canal?

It is owned by the State Highway Agency.