US Bridges

ST125 Conn EB over Comb Ferry Rd&mbta/Bmrr

Fair

Essex County, Massachusetts · 1 MI E I495 · Structure no. H120572RTDOTNBI

Built
1961
64 years old, rebuilt 2012
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
210 ft
4 main spans
Daily traffic
11,500
2018 count
Owner
State
State Highway Agency

About this bridge

ST125 Conn EB over Comb Ferry Rd&mbta/Bmrr is a steel stringer/multi-beam or girder carrying ST125 Conn EB over Comb Ferry Rd&mbta/Bmrr in Essex County, Massachusetts. It was built in 1961 and reconstructed in 2012, 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 11,500 vehicles a day, roughly 25% of them trucks, projected to reach 18,162 by 2032. The structure is 210 ft (64 m) long and 44 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesST125 Conn EB
CrossesComb Ferry Rd&mbta/Bmrr
Location1 MI E I495
RouteState Highway 125
CountyEssex County
StateMassachusetts
Coordinates42.75078, -71.10927
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
Deck7 GoodSome minor problems.
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating39.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length210 ft (64 m)
Longest span68 ft (20.7 m)
Deck width44 ft (13.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,500 (2018)
Projected traffic18,162 by 2032
Trucks25%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed5 mi (8 km)
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$8.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST125 Conn EB over Comb Ferry Rd&mbta/Bmrr built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2012.

What condition is ST125 Conn EB over Comb Ferry Rd&mbta/Bmrr 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 ST125 Conn EB over Comb Ferry Rd&mbta/Bmrr carry?

About 11,500 vehicles per day (2018 count), of which roughly 25% are trucks.

How long is ST125 Conn EB over Comb Ferry Rd&mbta/Bmrr?

The structure is 210 ft (64 m) long with a longest span of 68 ft (20.7 m) and a deck 44 ft wide.

Who owns ST125 Conn EB over Comb Ferry Rd&mbta/Bmrr?

It is owned by the State Highway Agency.