US Bridges

ST 9 Bstn-Wrcstr over US 20 Southwest Cutoff

Fair

Worcester County, Massachusetts · 1000 Ft E of Shrewsbry Tl · Structure no. N200161LYDOTNBI

Built
1930
95 years old, rebuilt 1988
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
66 ft
1 main span
Daily traffic
46,980
2023 count
Owner
State
State Highway Agency

About this bridge

ST 9 Bstn-Wrcstr over US 20 Southwest Cutoff is a steel stringer/multi-beam or girder carrying ST 9 Bstn-Wrcstr over US 20 Southwest Cutoff in Worcester County, Massachusetts. It was built in 1930 and reconstructed in 1988, so it is 95 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 46,980 vehicles a day, roughly 7% of them trucks, projected to reach 61,593 by 2032. The structure is 66 ft (20.1 m) long and 75 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesST 9 Bstn-Wrcstr
CrossesUS 20 Southwest Cutoff
Location1000 Ft E of Shrewsbry Tl
RouteState Highway 9
CountyWorcester County
StateMassachusetts
Coordinates42.28269, -71.67005
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.6 US tons
Inventory rating21.8 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 span58 ft (17.8 m)
Deck width75 ft (22.9 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46,980 (2023)
Projected traffic61,593 by 2032
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$4.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 9 Bstn-Wrcstr over US 20 Southwest Cutoff built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1988.

What condition is ST 9 Bstn-Wrcstr over US 20 Southwest Cutoff 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 2023.

How much traffic does ST 9 Bstn-Wrcstr over US 20 Southwest Cutoff carry?

About 46,980 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is ST 9 Bstn-Wrcstr over US 20 Southwest Cutoff?

The structure is 66 ft (20.1 m) long with a longest span of 58 ft (17.8 m) and a deck 75 ft wide.

Who owns ST 9 Bstn-Wrcstr over US 20 Southwest Cutoff?

It is owned by the State Highway Agency.