US Bridges

ST122 A/Main ST over RR Pwrr

FairPosted for load

Worcester County, Massachusetts · .3 MI N of JCT RTE 31 · Structure no. H18003224DOT634

Built
1900
125 years old, rebuilt 1949
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
66 ft
1 main span
Daily traffic
20,712
2019 count
Owner
State
State Highway Agency

About this bridge

ST122 A/Main ST over RR Pwrr is a steel stringer/multi-beam or girder carrying ST122 A/Main ST over RR Pwrr in Worcester County, Massachusetts. It was built in 1900 and reconstructed in 1949, so it is 125 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 20,712 vehicles a day, roughly 8% of them trucks, projected to reach 17,372 by 2031. The structure is 66 ft (20.1 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesST122 A/Main ST
CrossesRR Pwrr
Location.3 MI N of JCT RTE 31
RouteState Highway 122A
CountyWorcester County
StateMassachusetts
Coordinates42.35234, -71.86927
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.7 US tons
Inventory rating26.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length66 ft (20.1 m)
Longest span61 ft (18.6 m)
Deck width50 ft (15.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,712 (2019)
Projected traffic17,372 by 2031
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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 statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST122 A/Main ST over RR Pwrr built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1949.

What condition is ST122 A/Main ST over RR Pwrr 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 ST122 A/Main ST over RR Pwrr carry?

About 20,712 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is ST122 A/Main ST over RR Pwrr?

The structure is 66 ft (20.1 m) long with a longest span of 61 ft (18.6 m) and a deck 50 ft wide.

Who owns ST122 A/Main ST over RR Pwrr?

It is owned by the State Highway Agency.