US Bridges

I 90 Ramp G over I 90 Ramps a & B

Fair

Middlesex County, Massachusetts · At Int 14 S5 · Structure no. W290584QGDOTNBI

Built
1962
63 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
202 ft
3 main spans
Daily traffic
25,344
2023 count
Owner
State
State Highway Agency

About this bridge

I 90 Ramp G over I 90 Ramps a & B is a steel stringer/multi-beam or girder carrying I 90 Ramp G over I 90 Ramps a & B in Middlesex 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 25,344 vehicles a day, roughly 8% of them trucks, projected to reach 21,321 by 2032. The structure is 202 ft (61.6 m) long and 28 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesI 90 Ramp G
CrossesI 90 Ramps a & B
LocationAt Int 14 S5
RouteInterstate 90
CountyMiddlesex County
StateMassachusetts
Coordinates42.3411, -71.26602
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103.2 US tons
Inventory rating61.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length202 ft (61.6 m)
Longest span80 ft (24.4 m)
Deck width28 ft (8.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,344 (2023)
Projected traffic21,321 by 2032
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed13 mi (21 km)
TollOn a toll 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$5.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 90 Ramp G over I 90 Ramps a & B built?

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

What condition is I 90 Ramp G over I 90 Ramps a & B 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 July 2023.

How much traffic does I 90 Ramp G over I 90 Ramps a & B carry?

About 25,344 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is I 90 Ramp G over I 90 Ramps a & B?

The structure is 202 ft (61.6 m) long with a longest span of 80 ft (24.4 m) and a deck 28 ft wide.

Who owns I 90 Ramp G over I 90 Ramps a & B?

It is owned by the State Highway Agency.