US Bridges

ST116 Conway RD over Water South River

Good

Franklin County, Massachusetts · 600 N. of Creamery Road · Structure no. A13012B1RDOTNBI

Built
2007
18 years old
Condition
Good
inspected January 2024
Type
Frame
Concrete
Length
30 ft
1 main span
Daily traffic
1,940
2018 count
Owner
State
State Highway Agency

About this bridge

ST116 Conway RD over Water South River is a concrete frame carrying ST116 Conway RD over Water South River in Franklin County, Massachusetts. It was built in 2007, so it is 18 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 1,940 vehicles a day, roughly 10% of them trucks, projected to reach 4,422 by 2032. The structure is 30 ft (9 m) long and 30 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesST116 Conway RD
CrossesWater South River
Location600 N. of Creamery Road
RouteState Highway 116
Coordinates42.51207, -72.77523
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.4 US tons
Inventory rating38.6 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length30 ft (9 m)
Longest span30 ft (9 m)
Deck width30 ft (9 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,940 (2018)
Projected traffic4,422 by 2032
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST116 Conway RD over Water South River built?

It was built in 2007, making it 18 years old in 2025.

What condition is ST116 Conway RD over Water South River 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 January 2024.

How much traffic does ST116 Conway RD over Water South River carry?

About 1,940 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is ST116 Conway RD over Water South River?

The structure is 30 ft (9 m) long with a longest span of 30 ft (9 m) and a deck 30 ft wide.

Who owns ST116 Conway RD over Water South River?

It is owned by the State Highway Agency.