US Bridges

HWY Wolmlpoag ST over RR Amtrak/Mbta

Fair

Norfolk County, Massachusetts · 1 MI Ea of S Main ST · Structure no. S0901840PDOT634

Built
1973
52 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
96 ft
1 main span
Daily traffic
5,300
2023 count
Owner
State
State Highway Agency

About this bridge

HWY Wolmlpoag ST over RR Amtrak/Mbta is a prestressed concrete stringer/multi-beam or girder carrying HWY Wolmlpoag ST over RR Amtrak/Mbta in Norfolk County, Massachusetts. It was built in 1973, so it is 52 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 5,300 vehicles a day, roughly 2% of them trucks, projected to reach 6,317 by 2032. The structure is 96 ft (29.3 m) long and 49 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHWY Wolmlpoag ST
CrossesRR Amtrak/Mbta
Location1 MI Ea of S Main ST
RouteCity Street 0
CountyNorfolk County
StateMassachusetts
Coordinates42.08688, -71.19509
Functional classUrban Collector

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.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
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 rating57.8 US tons
Inventory rating34.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length96 ft (29.3 m)
Longest span92 ft (28 m)
Deck width49 ft (15 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,300 (2023)
Projected traffic6,317 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 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$4.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Wolmlpoag ST over RR Amtrak/Mbta built?

It was built in 1973, making it 52 years old in 2025.

What condition is HWY Wolmlpoag ST 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 April 2023.

How much traffic does HWY Wolmlpoag ST over RR Amtrak/Mbta carry?

About 5,300 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is HWY Wolmlpoag ST over RR Amtrak/Mbta?

The structure is 96 ft (29.3 m) long with a longest span of 92 ft (28 m) and a deck 49 ft wide.

Who owns HWY Wolmlpoag ST over RR Amtrak/Mbta?

It is owned by the State Highway Agency.