US Bridges

ST 12 W Boylstn ST over RR Bmrr

Fair

Worcester County, Massachusetts · 50 Ft N of East Mountain · Structure no. W44028236DOT634

Built
1927
98 years old, rebuilt 1986
Condition
Fair
inspected January 2025
Type
Arch - Deck
Concrete
Length
78 ft
1 main span
Daily traffic
11,407
2021 count
Owner
State
State Highway Agency

About this bridge

ST 12 W Boylstn ST over RR Bmrr is a concrete arch - deck carrying ST 12 W Boylstn ST over RR Bmrr in Worcester County, Massachusetts. It was built in 1927 and reconstructed in 1986, so it is 98 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 11,407 vehicles a day, roughly 7% of them trucks, projected to reach 30,796 by 2031. The structure is 78 ft (23.8 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesST 12 W Boylstn ST
CrossesRR Bmrr
Location50 Ft N of East Mountain
RouteState Highway 12
CountyWorcester County
StateMassachusetts
Coordinates42.32421, -71.79347
Functional classUrban Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.7 US tons
Inventory rating47.5 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length78 ft (23.8 m)
Longest span74 ft (22.6 m)
Deck width79 ft (24 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,407 (2021)
Projected traffic30,796 by 2031
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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$5.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 12 W Boylstn ST over RR Bmrr built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1986.

What condition is ST 12 W Boylstn ST over RR Bmrr 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 12 W Boylstn ST over RR Bmrr carry?

About 11,407 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is ST 12 W Boylstn ST over RR Bmrr?

The structure is 78 ft (23.8 m) long with a longest span of 74 ft (22.6 m) and a deck 79 ft wide.

Who owns ST 12 W Boylstn ST over RR Bmrr?

It is owned by the State Highway Agency.