US Bridges

I 495 NB over HWY Flanders RD

Fair

Worcester County, Massachusetts · 1.7 MI SE of ST-9 · Structure no. W240231U3DOTNBI

Built
1966
59 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
46,713
2023 count
Owner
State
State Highway Agency

About this bridge

I 495 NB over HWY Flanders RD is a prestressed concrete stringer/multi-beam or girder carrying I 495 NB over HWY Flanders RD in Worcester County, Massachusetts. It was built in 1966, so it is 59 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 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 46,713 vehicles a day, roughly 7% of them trucks, projected to reach 78,965 by 2032. The structure is 71 ft (21.6 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 495 NB
CrossesHWY Flanders RD
Location1.7 MI SE of ST-9
RouteInterstate 495
CountyWorcester County
StateMassachusetts
Coordinates42.27608, -71.56557
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.2 US tons
Inventory rating42.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length71 ft (21.6 m)
Longest span66 ft (20 m)
Deck width54 ft (16.6 m)
Roadway width49 ft (15 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46,713 (2023)
Projected traffic78,965 by 2032
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 495 NB over HWY Flanders RD built?

It was built in 1966, making it 59 years old in 2025.

What condition is I 495 NB over HWY Flanders RD 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 November 2023.

How much traffic does I 495 NB over HWY Flanders RD carry?

About 46,713 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is I 495 NB over HWY Flanders RD?

The structure is 71 ft (21.6 m) long with a longest span of 66 ft (20 m) and a deck 54 ft wide.

Who owns I 495 NB over HWY Flanders RD?

It is owned by the State Highway Agency.