US Bridges

US 3 SB over I 95 /ST128 & Cd

Fair

Middlesex County, Massachusetts · Rt 3 at Rt 128 · Structure no. B290062G2DOTNBI

Built
1962
63 years old, rebuilt 1993
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
284 ft
4 main spans
Daily traffic
20,200
2016 count
Owner
State
State Highway Agency

About this bridge

US 3 SB over I 95 /ST128 & Cd is a steel stringer/multi-beam or girder carrying US 3 SB over I 95 /ST128 & Cd in Middlesex County, Massachusetts. It was built in 1962 and reconstructed in 1993, 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 20,200 vehicles a day, roughly 7% of them trucks, projected to reach 55,276 by 2031. The structure is 284 ft (86.6 m) long and 46 ft wide.

Location

Open in Google Maps
CarriesUS 3 SB
CrossesI 95 /ST128 & Cd
LocationRt 3 at Rt 128
RouteU.S. Route 3
CountyMiddlesex County
StateMassachusetts
Coordinates42.47647, -71.22019
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
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 inspectionNovember 2024
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating50.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length284 ft (86.6 m)
Longest span72 ft (21.9 m)
Deck width46 ft (13.9 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,200 (2016)
Projected traffic55,276 by 2031
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$11.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 3 SB over I 95 /ST128 & Cd built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1993.

What condition is US 3 SB over I 95 /ST128 & Cd 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 US 3 SB over I 95 /ST128 & Cd carry?

About 20,200 vehicles per day (2016 count), of which roughly 7% are trucks.

How long is US 3 SB over I 95 /ST128 & Cd?

The structure is 284 ft (86.6 m) long with a longest span of 72 ft (21.9 m) and a deck 46 ft wide.

Who owns US 3 SB over I 95 /ST128 & Cd?

It is owned by the State Highway Agency.