US Bridges

HWY Clamshell RD over RR Bmrr (abandoned)

FairPosted for load

Worcester County, Massachusetts · 0.3 MI E of ST-70 · Structure no. C160111F9MUNNBI

Built
1903
122 years old
Condition
Fair
inspected December 2024
Type
Arch - Deck
Concrete
Length
69 ft
1 main span
Daily traffic
300
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Clamshell RD over RR Bmrr (abandoned) is a concrete arch - deck carrying HWY Clamshell RD over RR Bmrr (abandoned) in Worcester County, Massachusetts. It was built in 1903, so it is 122 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. Its operating status is: posted for load restriction.

It carries about 300 vehicles a day, roughly 25% of them trucks, projected to reach 158 by 2031. The structure is 69 ft (21 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesHWY Clamshell RD
CrossesRR Bmrr (abandoned)
Location0.3 MI E of ST-70
RouteCity Street 0
CountyWorcester County
StateMassachusetts
Coordinates42.40444, -71.67853
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length69 ft (21 m)
Longest span20 ft (6.1 m)
Deck width26 ft (8 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2024)
Projected traffic158 by 2031
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$1.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Clamshell RD over RR Bmrr (abandoned) built?

It was built in 1903, making it 122 years old in 2025.

What condition is HWY Clamshell RD over RR Bmrr (abandoned) 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 December 2024.

How much traffic does HWY Clamshell RD over RR Bmrr (abandoned) carry?

About 300 vehicles per day (2024 count), of which roughly 25% are trucks.

How long is HWY Clamshell RD over RR Bmrr (abandoned)?

The structure is 69 ft (21 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns HWY Clamshell RD over RR Bmrr (abandoned)?

It is owned by the Town or Township Highway Agency.