US Bridges

HWY Broadway over Comb Mbta/St & Ft Pt C

Fair

Suffolk County, Massachusetts · 0.5 KM SE JCT I93 & 190 · Structure no. B16686AYLDOTNBI

Built
1996
29 years old
Condition
Fair
inspected October 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
755 ft
9 main spans
Daily traffic
26,900
2022 count
Owner
State
State Highway Agency

About this bridge

HWY Broadway over Comb Mbta/St & Ft Pt C is a prestressed concrete continuous box beam or girders - multiple carrying HWY Broadway over Comb Mbta/St & Ft Pt C in Suffolk County, Massachusetts. It was built in 1996, so it is 29 years old, younger 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 26,900 vehicles a day, roughly 6% of them trucks, projected to reach 32,692 by 2031. The structure is 755 ft (230 m) long and 75 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesHWY Broadway
CrossesComb Mbta/St & Ft Pt C
Location0.5 KM SE JCT I93 & 190
RouteCity Street 0
CountySuffolk County
StateMassachusetts
Coordinates42.34354, -71.05944
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.9 US tons
Inventory rating32.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans9
Design loadUnknown
Structure length755 ft (230 m)
Longest span84 ft (25.5 m)
Deck width75 ft (22.9 m)
Roadway width52 ft (15.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,900 (2022)
Projected traffic32,692 by 2031
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway, waterway and railroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$51.5 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Broadway over Comb Mbta/St & Ft Pt C built?

It was built in 1996, making it 29 years old in 2025.

What condition is HWY Broadway over Comb Mbta/St & Ft Pt C 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 2022.

How much traffic does HWY Broadway over Comb Mbta/St & Ft Pt C carry?

About 26,900 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is HWY Broadway over Comb Mbta/St & Ft Pt C?

The structure is 755 ft (230 m) long with a longest span of 84 ft (25.5 m) and a deck 75 ft wide.

Who owns HWY Broadway over Comb Mbta/St & Ft Pt C?

It is owned by the State Highway Agency.