US Bridges

HWY Cummins HWY over RR Amtrak/Mbta

Fair

Suffolk County, Massachusetts · Just W of Hyde Park Ave · Structure no. B1610638EMUNNBI

Built
1921
104 years old, rebuilt 1995
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
84 ft
1 main span
Daily traffic
19,800
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

HWY Cummins HWY over RR Amtrak/Mbta is a steel stringer/multi-beam or girder carrying HWY Cummins HWY over RR Amtrak/Mbta in Suffolk County, Massachusetts. It was built in 1921 and reconstructed in 1995, so it is 104 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 19,800 vehicles a day, roughly 8% of them trucks, projected to reach 26,848 by 2032. The structure is 84 ft (25.5 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesHWY Cummins HWY
CrossesRR Amtrak/Mbta
LocationJust W of Hyde Park Ave
RouteCity Street 0
CountySuffolk County
StateMassachusetts
Coordinates42.28028, -71.11973
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.5 US tons
Inventory rating39.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length84 ft (25.5 m)
Longest span78 ft (23.7 m)
Deck width60 ft (18.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,800 (2024)
Projected traffic26,848 by 2032
Trucks8%
Lanes on structure4
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$4.2 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Cummins HWY over RR Amtrak/Mbta built?

It was built in 1921, making it 104 years old in 2025. It was reconstructed in 1995.

What condition is HWY Cummins HWY over RR Amtrak/Mbta 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 HWY Cummins HWY over RR Amtrak/Mbta carry?

About 19,800 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is HWY Cummins HWY over RR Amtrak/Mbta?

The structure is 84 ft (25.5 m) long with a longest span of 78 ft (23.7 m) and a deck 60 ft wide.

Who owns HWY Cummins HWY over RR Amtrak/Mbta?

It is owned by the City or Municipal Highway Agency.