US Bridges

ST 1 A/Rp E-1ASB over I 90 WB & SR-14

Good

Suffolk County, Massachusetts · Segment 2 · Structure no. B1659057VMPANBI

Built
2002
23 years old
Condition
Good
inspected February 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
322 ft
2 main spans
Daily traffic
—
Owner
State
State Highway Agency

About this bridge

ST 1 A/Rp E-1ASB over I 90 WB & SR-14 is a prestressed concrete continuous box beam or girders - single or spread carrying ST 1 A/Rp E-1ASB over I 90 WB & SR-14 in Suffolk County, Massachusetts. It was built in 2002, so it is 23 years old, younger than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

No traffic count is recorded. The structure is 322 ft (98.2 m) long and 32 ft wide.

CarriesST 1 A/Rp E-1ASB
CrossesI 90 WB & SR-14
LocationSegment 2
RouteState Highway 1A
Coordinates42.37371, -71.02987
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating82.3 US tons
Inventory rating49.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length322 ft (98.2 m)
Longest span176 ft (53.6 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck0 ft (0 m)

Traffic and service

Average daily traffic—
Projected traffic—
Trucks0%
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$17.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 1 A/Rp E-1ASB over I 90 WB & SR-14 built?

It was built in 2002, making it 23 years old in 2025.

What condition is ST 1 A/Rp E-1ASB over I 90 WB & SR-14 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.

How much traffic does ST 1 A/Rp E-1ASB over I 90 WB & SR-14 carry?

No traffic count is recorded for this structure.

How long is ST 1 A/Rp E-1ASB over I 90 WB & SR-14?

The structure is 322 ft (98.2 m) long with a longest span of 176 ft (53.6 m) and a deck 32 ft wide.

Who owns ST 1 A/Rp E-1ASB over I 90 WB & SR-14?

It is owned by the State Highway Agency.