US Bridges

I 93 NB over HWY Frontage RD NB

Fair

Suffolk County, Massachusetts · Albany ST and Frontage RD · Structure no. B16661917DOTNBI

Built
2002
23 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Steel Continuous
Length
1,033 ft
7 main spans
Daily traffic
127,241
2017 count
Owner
State
State Highway Agency

About this bridge

I 93 NB over HWY Frontage RD NB is a steel continuous box beam or girders - multiple carrying I 93 NB over HWY Frontage RD NB 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 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 127,241 vehicles a day, roughly 2% of them trucks, projected to reach 125,238 by 2032. The structure is 1,033 ft (314.8 m) long and 55 ft wide.

Location

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CarriesI 93 NB
CrossesHWY Frontage RD NB
LocationAlbany ST and Frontage RD
RouteInterstate 93
CountySuffolk County
StateMassachusetts
Coordinates42.34028, -71.06323
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.5 US tons
Inventory rating44 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length1,033 ft (314.8 m)
Longest span153 ft (46.6 m)
Deck width55 ft (16.9 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deck16 ft (4.8 m)

Traffic and service

Average daily traffic127,241 (2017)
Projected traffic125,238 by 2032
Trucks2%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$50.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 93 NB over HWY Frontage RD NB built?

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

What condition is I 93 NB over HWY Frontage RD NB 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 2023.

How much traffic does I 93 NB over HWY Frontage RD NB carry?

About 127,241 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is I 93 NB over HWY Frontage RD NB?

The structure is 1,033 ft (314.8 m) long with a longest span of 153 ft (46.6 m) and a deck 55 ft wide.

Who owns I 93 NB over HWY Frontage RD NB?

It is owned by the State Highway Agency.