US Bridges

I 495 SB over Water River Meadow Brook

Fair

Middlesex County, Massachusetts · 0.7 MI No Rt 110 · Structure no. C080282LUDOTNBI

Built
1959
66 years old, rebuilt 1975
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
44 ft
1 main span
Daily traffic
128,820
2024 count
Owner
State
State Highway Agency

About this bridge

I 495 SB over Water River Meadow Brook is a steel stringer/multi-beam or girder carrying I 495 SB over Water River Meadow Brook in Middlesex County, Massachusetts. It was built in 1959 and reconstructed in 1975, so it is 66 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 128,820 vehicles a day, roughly 15% of them trucks, projected to reach 168,511 by 2031. The structure is 44 ft (13.4 m) long and 100 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesI 495 SB
CrossesWater River Meadow Brook
Location0.7 MI No Rt 110
RouteInterstate 495
CountyMiddlesex County
StateMassachusetts
Coordinates42.6071, -71.33259
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span39 ft (11.9 m)
Deck width100 ft (30.6 m)
Roadway width93 ft (28.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic128,820 (2024)
Projected traffic168,511 by 2031
Trucks15%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$836,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I 495 SB over Water River Meadow Brook built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1975.

What condition is I 495 SB over Water River Meadow Brook 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 2024.

How much traffic does I 495 SB over Water River Meadow Brook carry?

About 128,820 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is I 495 SB over Water River Meadow Brook?

The structure is 44 ft (13.4 m) long with a longest span of 39 ft (11.9 m) and a deck 100 ft wide.

Who owns I 495 SB over Water River Meadow Brook?

It is owned by the State Highway Agency.