US Bridges

ST107 Bridge ST over RR MBTA (main Line)

Fair

Essex County, Massachusetts · .32 KM N Salem Center · Structure no. S0101732VDOT634

Built
1949
76 years old
Condition
Fair
inspected December 2023
Type
Frame
Concrete
Length
36 ft
1 main span
Daily traffic
24,000
2017 count
Owner
State
State Highway Agency

About this bridge

ST107 Bridge ST over RR MBTA (main Line) is a concrete frame carrying ST107 Bridge ST over RR MBTA (main Line) in Essex County, Massachusetts. It was built in 1949, so it is 76 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 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 24,000 vehicles a day, roughly 8% of them trucks, projected to reach 27,638 by 2032. The structure is 36 ft (11 m) long and 118 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesST107 Bridge ST
CrossesRR MBTA (main Line)
Location.32 KM N Salem Center
RouteState Highway 107
CountyEssex County
StateMassachusetts
Coordinates42.52428, -70.89868
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating65.1 US tons
Inventory rating39 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length36 ft (11 m)
Longest span24 ft (7.3 m)
Deck width118 ft (36.1 m)
Roadway width113 ft (34.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,000 (2017)
Projected traffic27,638 by 2032
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$845,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST107 Bridge ST over RR MBTA (main Line) built?

It was built in 1949, making it 76 years old in 2025.

What condition is ST107 Bridge ST over RR MBTA (main Line) 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 December 2023.

How much traffic does ST107 Bridge ST over RR MBTA (main Line) carry?

About 24,000 vehicles per day (2017 count), of which roughly 8% are trucks.

How long is ST107 Bridge ST over RR MBTA (main Line)?

The structure is 36 ft (11 m) long with a longest span of 24 ft (7.3 m) and a deck 118 ft wide.

Who owns ST107 Bridge ST over RR MBTA (main Line)?

It is owned by the State Highway Agency.