US Bridges

I 93 Rp to I93 NB over I 93

Fair

Middlesex County, Massachusetts · 1.0 KM NW JCT I93&SR28 · Structure no. M120443FCDOTNBI

Built
1972
53 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
207 ft
2 main spans
Daily traffic
16,231
2024 count
Owner
State
State Highway Agency

About this bridge

I 93 Rp to I93 NB over I 93 is a steel continuous stringer/multi-beam or girder carrying I 93 Rp to I93 NB over I 93 in Middlesex County, Massachusetts. It was built in 1972, so it is 53 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 16,231 vehicles a day, roughly 10% of them trucks, projected to reach 31,112 by 2031. The structure is 207 ft (63.1 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesI 93 Rp to I93 NB
CrossesI 93
Location1.0 KM NW JCT I93&SR28
RouteInterstate 93
CountyMiddlesex County
StateMassachusetts
Coordinates42.40131, -71.09517
Functional classUrban Minor Arterial

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 inspectionSeptember 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 alignment7: Better than present minimum criteria
Operating rating63.1 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length207 ft (63.1 m)
Longest span100 ft (30.5 m)
Deck width29 ft (8.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,231 (2024)
Projected traffic31,112 by 2031
Trucks10%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo
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$5.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 93 Rp to I93 NB over I 93 built?

It was built in 1972, making it 53 years old in 2025.

What condition is I 93 Rp to I93 NB over I 93 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 September 2024.

How much traffic does I 93 Rp to I93 NB over I 93 carry?

About 16,231 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is I 93 Rp to I93 NB over I 93?

The structure is 207 ft (63.1 m) long with a longest span of 100 ft (30.5 m) and a deck 29 ft wide.

Who owns I 93 Rp to I93 NB over I 93?

It is owned by the State Highway Agency.