US Bridges

HWY Maffa Way over Comb Orange & Mbta/Bmrr

Fair

Suffolk County, Massachusetts · 600 M NW of Sullivan Sq · Structure no. B160673GVDOT634

Built
1952
73 years old
Condition
Fair
inspected November 2021
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
155 ft
2 main spans
Daily traffic
19,526
2019 count
Owner
State
State Highway Agency

About this bridge

HWY Maffa Way over Comb Orange & Mbta/Bmrr is a steel continuous stringer/multi-beam or girder carrying HWY Maffa Way over Comb Orange & Mbta/Bmrr in Suffolk County, Massachusetts. It was built in 1952, so it is 73 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 19,526 vehicles a day, roughly 11% of them trucks, projected to reach 119,711 by 2032. The structure is 155 ft (47.2 m) long and 83 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesHWY Maffa Way
CrossesComb Orange & Mbta/Bmrr
Location600 M NW of Sullivan Sq
RouteCity Street 0
CountySuffolk County
StateMassachusetts
Coordinates42.38564, -71.0768
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.
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 inspectionNovember 2021
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 alignment7: Better than present minimum criteria
Operating rating46.8 US tons
Inventory rating27.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length155 ft (47.2 m)
Longest span82 ft (25.1 m)
Deck width83 ft (25.4 m)
Roadway width64 ft (19.6 m)
Vertical clearance over deck22 ft (6.6 m)

Traffic and service

Average daily traffic19,526 (2019)
Projected traffic119,711 by 2032
Trucks11%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.1 mi (5 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$11.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Maffa Way over Comb Orange & Mbta/Bmrr built?

It was built in 1952, making it 73 years old in 2025.

What condition is HWY Maffa Way over Comb Orange & 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 November 2021.

How much traffic does HWY Maffa Way over Comb Orange & Mbta/Bmrr carry?

About 19,526 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is HWY Maffa Way over Comb Orange & Mbta/Bmrr?

The structure is 155 ft (47.2 m) long with a longest span of 82 ft (25.1 m) and a deck 83 ft wide.

Who owns HWY Maffa Way over Comb Orange & Mbta/Bmrr?

It is owned by the State Highway Agency.