US Bridges

I 93 over ST213 EB

Fair

Essex County, Massachusetts · 2 MI N Merrimac River · Structure no. M170212UUDOTNBI

Built
1959
66 years old, rebuilt 1974
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
112 ft
3 main spans
Daily traffic
144,946
2024 count
Owner
State
State Highway Agency

About this bridge

I 93 over ST213 EB is a prestressed concrete stringer/multi-beam or girder carrying I 93 over ST213 EB in Essex County, Massachusetts. It was built in 1959 and reconstructed in 1974, so it is 66 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 144,946 vehicles a day, roughly 10% of them trucks, projected to reach 136,294 by 2031. The structure is 112 ft (34.1 m) long and 148 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI 93
CrossesST213 EB
Location2 MI N Merrimac River
RouteInterstate 93
CountyEssex County
StateMassachusetts
Coordinates42.73191, -71.20368
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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 alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating34.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length112 ft (34.1 m)
Longest span42 ft (12.8 m)
Deck width148 ft (45.1 m)
Roadway width140 ft (42.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic144,946 (2024)
Projected traffic136,294 by 2031
Trucks10%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
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$15.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 93 over ST213 EB built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1974.

What condition is I 93 over ST213 EB 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 October 2024.

How much traffic does I 93 over ST213 EB carry?

About 144,946 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is I 93 over ST213 EB?

The structure is 112 ft (34.1 m) long with a longest span of 42 ft (12.8 m) and a deck 148 ft wide.

Who owns I 93 over ST213 EB?

It is owned by the State Highway Agency.