US Bridges

HWY Green ST over Comb Amtrak/Mbta & Orng

Fair

Suffolk County, Massachusetts · Btwn Oakdale & Washington · Structure no. B160984VFMBTNBI

Built
1981
44 years old
Condition
Fair
inspected September 2022
Type
Frame
Concrete Continuous
Length
102 ft
2 main spans
Daily traffic
3,300
1997 count
Owner
State
Other State Agency

About this bridge

HWY Green ST over Comb Amtrak/Mbta & Orng is a concrete continuous frame carrying HWY Green ST over Comb Amtrak/Mbta & Orng in Suffolk County, Massachusetts. It was built in 1981, so it is 44 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 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 3,300 vehicles a day, roughly 7% of them trucks, projected to reach 5,212 by 2030. The structure is 102 ft (31.1 m) long and 50 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHWY Green ST
CrossesComb Amtrak/Mbta & Orng
LocationBtwn Oakdale & Washington
RouteCity Street 0
CountySuffolk County
StateMassachusetts
Coordinates42.31066, -71.10733
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating85 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span48 ft (14.7 m)
Deck width50 ft (15.2 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,300 (1997)
Projected traffic5,212 by 2030
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther State Agency
Maintained byOther State Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$5.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Green ST over Comb Amtrak/Mbta & Orng built?

It was built in 1981, making it 44 years old in 2025.

What condition is HWY Green ST over Comb Amtrak/Mbta & Orng 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 2022.

How much traffic does HWY Green ST over Comb Amtrak/Mbta & Orng carry?

About 3,300 vehicles per day (1997 count), of which roughly 7% are trucks.

How long is HWY Green ST over Comb Amtrak/Mbta & Orng?

The structure is 102 ft (31.1 m) long with a longest span of 48 ft (14.7 m) and a deck 50 ft wide.

Who owns HWY Green ST over Comb Amtrak/Mbta & Orng?

It is owned by the Other State Agency.