US Bridges

HWY Norfolk ST over RR MBTA

Fair

Suffolk County, Massachusetts · .53 KM W of JCTSR28&SR203 · Structure no. B161623HBDOT634

Built
1901
124 years old, rebuilt 1986
Condition
Fair
inspected February 2024
Type
Girder and Floorbeam System
Steel
Length
126 ft
1 main span
Daily traffic
13,400
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Norfolk ST over RR MBTA is a steel girder and floorbeam system carrying HWY Norfolk ST over RR MBTA in Suffolk County, Massachusetts. It was built in 1901 and reconstructed in 1986, so it is 124 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 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 13,400 vehicles a day, roughly 2% of them trucks, projected to reach 19,741 by 2031. The structure is 126 ft (38.4 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesHWY Norfolk ST
CrossesRR MBTA
Location.53 KM W of JCTSR28&SR203
RouteCity Street 0
CountySuffolk County
StateMassachusetts
Coordinates42.28326, -71.08379
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 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 alignment7: Better than present minimum criteria
Operating rating65.3 US tons
Inventory rating40.5 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length126 ft (38.4 m)
Longest span113 ft (34.4 m)
Deck width58 ft (17.7 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,400 (2024)
Projected traffic19,741 by 2031
Trucks2%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Norfolk ST over RR MBTA built?

It was built in 1901, making it 124 years old in 2025. It was reconstructed in 1986.

What condition is HWY Norfolk ST 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 February 2024.

How much traffic does HWY Norfolk ST over RR MBTA carry?

About 13,400 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is HWY Norfolk ST over RR MBTA?

The structure is 126 ft (38.4 m) long with a longest span of 113 ft (34.4 m) and a deck 58 ft wide.

Who owns HWY Norfolk ST over RR MBTA?

It is owned by the State Highway Agency.