US Bridges

HWY South ST over I 495 SB

Fair

Norfolk County, Massachusetts · .8 MI NW of I 95 · Structure no. F060253XLDOTNBI

Built
1965
60 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
109 ft
1 main span
Daily traffic
5,431
2024 count
Owner
State
State Highway Agency

About this bridge

HWY South ST over I 495 SB is a steel stringer/multi-beam or girder carrying HWY South ST over I 495 SB in Norfolk 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 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 5,431 vehicles a day, roughly 5% of them trucks, projected to reach 7,896 by 2033. The structure is 109 ft (33.2 m) long and 53 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesHWY South ST
CrossesI 495 SB
Location.8 MI NW of I 95
RouteCity Street 0
CountyNorfolk County
StateMassachusetts
Coordinates42.0312, -71.27338
Functional classUrban Minor 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length109 ft (33.2 m)
Longest span106 ft (32.2 m)
Deck width53 ft (16.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,431 (2024)
Projected traffic7,896 by 2033
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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$5.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY South ST over I 495 SB built?

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

What condition is HWY South ST over I 495 SB 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 March 2024.

How much traffic does HWY South ST over I 495 SB carry?

About 5,431 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is HWY South ST over I 495 SB?

The structure is 109 ft (33.2 m) long with a longest span of 106 ft (32.2 m) and a deck 53 ft wide.

Who owns HWY South ST over I 495 SB?

It is owned by the State Highway Agency.