US Bridges

ST 9 Worcester ST over RR Csx/Mbta

Fair

Norfolk County, Massachusetts · 0.40 KM Wly Rt 16 · Structure no. W130062P3DOT634

Built
1932
93 years old, rebuilt 1996
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
93 ft
1 main span
Daily traffic
70,344
2024 count
Owner
State
State Highway Agency

About this bridge

ST 9 Worcester ST over RR Csx/Mbta is a steel stringer/multi-beam or girder carrying ST 9 Worcester ST over RR Csx/Mbta in Norfolk County, Massachusetts. It was built in 1932 and reconstructed in 1996, so it is 93 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 6 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 70,344 vehicles a day, roughly 3% of them trucks, projected to reach 86,862 by 2031. The structure is 93 ft (28.3 m) long and 78 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesST 9 Worcester ST
CrossesRR Csx/Mbta
Location0.40 KM Wly Rt 16
RouteState Highway 9
CountyNorfolk County
StateMassachusetts
Coordinates42.31224, -71.27629
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating74.4 US tons
Inventory rating44.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length93 ft (28.3 m)
Longest span83 ft (25.4 m)
Deck width78 ft (23.8 m)
Roadway width57 ft (17.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70,344 (2024)
Projected traffic86,862 by 2031
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed0.6 mi (1 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$3.2 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 9 Worcester ST over RR Csx/Mbta built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1996.

What condition is ST 9 Worcester ST over RR Csx/Mbta 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 March 2024.

How much traffic does ST 9 Worcester ST over RR Csx/Mbta carry?

About 70,344 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is ST 9 Worcester ST over RR Csx/Mbta?

The structure is 93 ft (28.3 m) long with a longest span of 83 ft (25.4 m) and a deck 78 ft wide.

Who owns ST 9 Worcester ST over RR Csx/Mbta?

It is owned by the State Highway Agency.