US Bridges

I 495 SB over ST 30 Main ST

Fair

Worcester County, Massachusetts · 1.25 Miles No. of State 9 · Structure no. S200171U8DOTNBI

Built
1962
63 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
114 ft
3 main spans
Daily traffic
30,782
2023 count
Owner
State
State Highway Agency

About this bridge

I 495 SB over ST 30 Main ST is a prestressed concrete stringer/multi-beam or girder carrying I 495 SB over ST 30 Main ST in Worcester County, Massachusetts. It was built in 1962, so it is 63 years old, younger 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 30,782 vehicles a day, roughly 7% of them trucks, projected to reach 78,965 by 2032. The structure is 114 ft (34.7 m) long and 53 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI 495 SB
CrossesST 30 Main ST
Location1.25 Miles No. of State 9
RouteInterstate 495
CountyWorcester County
StateMassachusetts
Coordinates42.30712, -71.56591
Functional classUrban Principal Arterial - Interstate

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.8 US tons
Inventory rating25.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length114 ft (34.7 m)
Longest span51 ft (15.5 m)
Deck width53 ft (16.2 m)
Roadway width50 ft (15.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,782 (2023)
Projected traffic78,965 by 2032
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$5.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 495 SB over ST 30 Main ST built?

It was built in 1962, making it 63 years old in 2025.

What condition is I 495 SB over ST 30 Main ST 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 May 2023.

How much traffic does I 495 SB over ST 30 Main ST carry?

About 30,782 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is I 495 SB over ST 30 Main ST?

The structure is 114 ft (34.7 m) long with a longest span of 51 ft (15.5 m) and a deck 53 ft wide.

Who owns I 495 SB over ST 30 Main ST?

It is owned by the State Highway Agency.