US Bridges

HWY S Bos Bps RD over Other Relief

Fair

Suffolk County, Massachusetts · At NB Frontage Rd. · Structure no. B1664491VDOTNBI

Built
1998
27 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
19,138
2025 count
Owner
State
State Highway Agency

About this bridge

HWY S Bos Bps RD over Other Relief is a prestressed concrete stringer/multi-beam or girder carrying HWY S Bos Bps RD over Other Relief in Suffolk County, Massachusetts. It was built in 1998, so it is 27 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 19,138 vehicles a day, roughly 19% of them trucks, projected to reach 6,791 by 2032. The structure is 43 ft (13.1 m) long and 63 ft wide.

CarriesHWY S Bos Bps RD
CrossesOther Relief
LocationAt NB Frontage Rd.
Coordinates42.33396, -71.06356
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 inspectionJanuary 2025
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 alignment8: Equal to present desirable criteria
Operating rating96.5 US tons
Inventory rating55.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length43 ft (13.1 m)
Longest span43 ft (13.1 m)
Deck width63 ft (19.3 m)
Roadway width57 ft (17.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,138 (2025)
Projected traffic6,791 by 2032
Trucks19%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed—
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$1.5 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY S Bos Bps RD over Other Relief built?

It was built in 1998, making it 27 years old in 2025.

What condition is HWY S Bos Bps RD over Other Relief 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 January 2025.

How much traffic does HWY S Bos Bps RD over Other Relief carry?

About 19,138 vehicles per day (2025 count), of which roughly 19% are trucks.

How long is HWY S Bos Bps RD over Other Relief?

The structure is 43 ft (13.1 m) long with a longest span of 43 ft (13.1 m) and a deck 63 ft wide.

Who owns HWY S Bos Bps RD over Other Relief?

It is owned by the State Highway Agency.