US Bridges

ST125 Main ST over Comb I 495 & Snows Brk

Fair

Essex County, Massachusetts · 7.8 KM N ST110 · Structure no. H120502TMDOTNBI

Built
1961
64 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
334 ft
5 main spans
Daily traffic
26,548
2021 count
Owner
State
State Highway Agency

About this bridge

ST125 Main ST over Comb I 495 & Snows Brk is a steel stringer/multi-beam or girder carrying ST125 Main ST over Comb I 495 & Snows Brk in Essex County, Massachusetts. It was built in 1961, so it is 64 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 26,548 vehicles a day, roughly 4% of them trucks, projected to reach 68,857 by 2032. The structure is 334 ft (101.8 m) long and 90 ft wide.

Location

Open in Google Maps
CarriesST125 Main ST
CrossesComb I 495 & Snows Brk
Location7.8 KM N ST110
RouteState Highway 125
CountyEssex County
StateMassachusetts
Coordinates42.80051, -71.09301
Functional classUrban Other Principal 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.8 US tons
Inventory rating33.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length334 ft (101.8 m)
Longest span78 ft (23.8 m)
Deck width90 ft (27.5 m)
Roadway width78 ft (23.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,548 (2021)
Projected traffic68,857 by 2032
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
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$27.3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST125 Main ST over Comb I 495 & Snows Brk built?

It was built in 1961, making it 64 years old in 2025.

What condition is ST125 Main ST over Comb I 495 & Snows Brk 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 ST125 Main ST over Comb I 495 & Snows Brk carry?

About 26,548 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is ST125 Main ST over Comb I 495 & Snows Brk?

The structure is 334 ft (101.8 m) long with a longest span of 78 ft (23.8 m) and a deck 90 ft wide.

Who owns ST125 Main ST over Comb I 495 & Snows Brk?

It is owned by the State Highway Agency.