US Bridges

I 95 SB over RR Amtrak/Mbta

Fair

Norfolk County, Massachusetts · .32 KM SW of Dedham ST · Structure no. C0203335DDOTNBI

Built
1964
61 years old
Condition
Fair
inspected August 2021
Type
Stringer/Multi-beam or Girder
Steel
Length
80 ft
1 main span
Daily traffic
98,200
2019 count
Owner
State
State Highway Agency

About this bridge

I 95 SB over RR Amtrak/Mbta is a steel stringer/multi-beam or girder carrying I 95 SB over RR Amtrak/Mbta in Norfolk County, Massachusetts. It was built in 1964, so it is 61 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 98,200 vehicles a day, roughly 18% of them trucks, projected to reach 181,620 by 2032. The structure is 80 ft (24.4 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 95 SB
CrossesRR Amtrak/Mbta
Location.32 KM SW of Dedham ST
RouteInterstate 95
CountyNorfolk County
StateMassachusetts
Coordinates42.18821, -71.15553
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2021
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.4 US tons
Inventory rating38.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span78 ft (23.8 m)
Deck width56 ft (17.1 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic98,200 (2019)
Projected traffic181,620 by 2032
Trucks18%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$4.2 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 95 SB over RR Amtrak/Mbta built?

It was built in 1964, making it 61 years old in 2025.

What condition is I 95 SB over RR Amtrak/Mbta 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 August 2021.

How much traffic does I 95 SB over RR Amtrak/Mbta carry?

About 98,200 vehicles per day (2019 count), of which roughly 18% are trucks.

How long is I 95 SB over RR Amtrak/Mbta?

The structure is 80 ft (24.4 m) long with a longest span of 78 ft (23.8 m) and a deck 56 ft wide.

Who owns I 95 SB over RR Amtrak/Mbta?

It is owned by the State Highway Agency.