US Bridges

US 1 NE Xway over US 1 Ramp & ST60

Fair

Suffolk County, Massachusetts · 1 MI W of ST-107 · Structure no. R050393ANDOTNBI

Built
1956
69 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
483 ft
7 main spans
Daily traffic
83,100
2024 count
Owner
State
State Highway Agency

About this bridge

US 1 NE Xway over US 1 Ramp & ST60 is a steel stringer/multi-beam or girder carrying US 1 NE Xway over US 1 Ramp & ST60 in Suffolk County, Massachusetts. It was built in 1956, so it is 69 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 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 83,100 vehicles a day, roughly 10% of them trucks, projected to reach 86,546 by 2031. The structure is 483 ft (147.2 m) long and 89 ft wide.

Location

Open in Google Maps
CarriesUS 1 NE Xway
CrossesUS 1 Ramp & ST60
Location1 MI W of ST-107
RouteU.S. Route 1
CountySuffolk County
StateMassachusetts
Coordinates42.43131, -71.01753
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 inspectionMarch 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 geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating69.9 US tons
Inventory rating41.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length483 ft (147.2 m)
Longest span99 ft (30.2 m)
Deck width89 ft (27 m)
Roadway width78 ft (23.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic83,100 (2024)
Projected traffic86,546 by 2031
Trucks10%
Lanes on structure4
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$38.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 1 NE Xway over US 1 Ramp & ST60 built?

It was built in 1956, making it 69 years old in 2025.

What condition is US 1 NE Xway over US 1 Ramp & ST60 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 March 2024.

How much traffic does US 1 NE Xway over US 1 Ramp & ST60 carry?

About 83,100 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is US 1 NE Xway over US 1 Ramp & ST60?

The structure is 483 ft (147.2 m) long with a longest span of 99 ft (30.2 m) and a deck 89 ft wide.

Who owns US 1 NE Xway over US 1 Ramp & ST60?

It is owned by the State Highway Agency.