US Bridges

ST 12 /ST140/WRSTR over Water Wachusett Reservr

Good

Worcester County, Massachusetts · .3 MI NE of B&m RR · Structure no. W170054CXDOTNBI

Built
1904
121 years old
Condition
Good
inspected July 2024
Type
Arch - Deck
Masonry
Length
47 ft
1 main span
Daily traffic
10,570
2023 count
Owner
State
State Highway Agency

About this bridge

ST 12 /ST140/WRSTR over Water Wachusett Reservr is a masonry arch - deck carrying ST 12 /ST140/WRSTR over Water Wachusett Reservr in Worcester County, Massachusetts. It was built in 1904, so it is 121 years old, older 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 10,570 vehicles a day, roughly 6% of them trucks, projected to reach 28,269 by 2031. The structure is 47 ft (14.3 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesST 12 /ST140/WRSTR
CrossesWater Wachusett Reservr
Location.3 MI NE of B&m RR
RouteState Highway 12
CountyWorcester County
StateMassachusetts
Coordinates42.37393, -71.77878
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.8 US tons
Inventory rating30.6 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadUnknown
Structure length47 ft (14.3 m)
Longest span47 ft (14.3 m)
Deck width45 ft (13.6 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,570 (2023)
Projected traffic28,269 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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 12 /ST140/WRSTR over Water Wachusett Reservr built?

It was built in 1904, making it 121 years old in 2025.

What condition is ST 12 /ST140/WRSTR over Water Wachusett Reservr 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 July 2024.

How much traffic does ST 12 /ST140/WRSTR over Water Wachusett Reservr carry?

About 10,570 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is ST 12 /ST140/WRSTR over Water Wachusett Reservr?

The structure is 47 ft (14.3 m) long with a longest span of 47 ft (14.3 m) and a deck 45 ft wide.

Who owns ST 12 /ST140/WRSTR over Water Wachusett Reservr?

It is owned by the State Highway Agency.