US Bridges

ST 9 Huntingtn Av over Other Relief

Good

Suffolk County, Massachusetts · Ring Road · Structure no. B16049B88DOTNBI

Built
1965
60 years old
Condition
Good
inspected March 2023
Type
Frame
Concrete
Length
119 ft
2 main spans
Daily traffic
23,275
2023 count
Owner
State
State Highway Agency

About this bridge

ST 9 Huntingtn Av over Other Relief is a concrete frame carrying ST 9 Huntingtn Av over Other Relief in Suffolk County, Massachusetts. It was built in 1965, so it is 60 years old, younger than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 23,275 vehicles a day, roughly 11% of them trucks, projected to reach 15,714 by 2032. The structure is 119 ft (36.3 m) long and 46 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesST 9 Huntingtn Av
CrossesOther Relief
LocationRing Road
CountySuffolk County
StateMassachusetts
Coordinates42.34728, -71.07944
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length119 ft (36.3 m)
Longest span32 ft (9.8 m)
Deck width46 ft (14.1 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deck15 ft (4.6 m)

Traffic and service

Average daily traffic23,275 (2023)
Projected traffic15,714 by 2032
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed5 mi (8 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$11 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 9 Huntingtn Av over Other Relief built?

It was built in 1965, making it 60 years old in 2025.

What condition is ST 9 Huntingtn Av over Other Relief in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does ST 9 Huntingtn Av over Other Relief carry?

About 23,275 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is ST 9 Huntingtn Av over Other Relief?

The structure is 119 ft (36.3 m) long with a longest span of 32 ft (9.8 m) and a deck 46 ft wide.

Who owns ST 9 Huntingtn Av over Other Relief?

It is owned by the State Highway Agency.