US Bridges

HWY Grt Pln Ave over RR MBTA

Fair

Norfolk County, Massachusetts · .16 KM W Dedham Ave · Structure no. N04011377DOT634

Built
1900
125 years old, rebuilt 1960
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
5,560
2023 count
Owner
State
State Highway Agency

About this bridge

HWY Grt Pln Ave over RR MBTA is a steel stringer/multi-beam or girder carrying HWY Grt Pln Ave over RR MBTA in Norfolk County, Massachusetts. It was built in 1900 and reconstructed in 1960, so it is 125 years old, older 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 5,560 vehicles a day, roughly 7% of them trucks, projected to reach 20,531 by 2032. The structure is 55 ft (16.9 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesHWY Grt Pln Ave
CrossesRR MBTA
Location.16 KM W Dedham Ave
CountyNorfolk County
StateMassachusetts
Coordinates42.27576, -71.21472
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionJuly 2023
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 alignment6: Equal to present minimum criteria
Operating rating53.6 US tons
Inventory rating32.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length55 ft (16.9 m)
Longest span51 ft (15.4 m)
Deck width49 ft (14.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,560 (2023)
Projected traffic20,531 by 2032
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Grt Pln Ave over RR MBTA built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1960.

What condition is HWY Grt Pln Ave over RR 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 July 2023.

How much traffic does HWY Grt Pln Ave over RR MBTA carry?

About 5,560 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is HWY Grt Pln Ave over RR MBTA?

The structure is 55 ft (16.9 m) long with a longest span of 51 ft (15.4 m) and a deck 49 ft wide.

Who owns HWY Grt Pln Ave over RR MBTA?

It is owned by the State Highway Agency.