US Bridges

I 90 over HWY Charles ST

Fair

Middlesex County, Massachusetts · .1 MI E.Charles Rv S10 · Structure no. N120734QMDOTNBI

Built
1964
61 years old
Condition
Fair
inspected February 2024
Type
Frame
Concrete
Length
41 ft
1 main span
Daily traffic
176,121
2024 count
Owner
State
State Highway Agency

About this bridge

I 90 over HWY Charles ST is a concrete frame carrying I 90 over HWY Charles ST in Middlesex County, Massachusetts. It was built in 1964, so it is 61 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 176,121 vehicles a day, roughly 8% of them trucks, projected to reach 146,150 by 2031. The structure is 41 ft (12.5 m) long and 92 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI 90
CrossesHWY Charles ST
Location.1 MI E.Charles Rv S10
RouteInterstate 90
CountyMiddlesex County
StateMassachusetts
Coordinates42.34254, -71.25697
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
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 rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span33 ft (10.1 m)
Deck width92 ft (28 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic176,121 (2024)
Projected traffic146,150 by 2031
Trucks8%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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$1.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 90 over HWY Charles ST built?

It was built in 1964, making it 61 years old in 2025.

What condition is I 90 over HWY Charles 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 February 2024.

How much traffic does I 90 over HWY Charles ST carry?

About 176,121 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is I 90 over HWY Charles ST?

The structure is 41 ft (12.5 m) long with a longest span of 33 ft (10.1 m) and a deck 92 ft wide.

Who owns I 90 over HWY Charles ST?

It is owned by the State Highway Agency.