US Bridges

HWY Middle ST over RR MBTA

Fair

Norfolk County, Massachusetts · .1 Mi.Se of Elm ST · Structure no. B2103036TDOT634

Built
1955
70 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
13,000
2023 count
Owner
State
State Highway Agency

About this bridge

HWY Middle ST over RR MBTA is a steel stringer/multi-beam or girder carrying HWY Middle ST over RR MBTA in Norfolk County, Massachusetts. It was built in 1955, so it is 70 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 13,000 vehicles a day, roughly 6% of them trucks, projected to reach 24,163 by 2032. The structure is 46 ft (14 m) long and 46 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHWY Middle ST
CrossesRR MBTA
Location.1 Mi.Se of Elm ST
RouteCity Street 0
CountyNorfolk County
StateMassachusetts
Coordinates42.22241, -70.99583
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.5 US tons
Inventory rating27.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length46 ft (14 m)
Longest span46 ft (14 m)
Deck width46 ft (14.1 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2023)
Projected traffic24,163 by 2032
Trucks6%
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$2.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Middle ST over RR MBTA built?

It was built in 1955, making it 70 years old in 2025.

What condition is HWY Middle 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 May 2023.

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

About 13,000 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is HWY Middle ST over RR MBTA?

The structure is 46 ft (14 m) long with a longest span of 46 ft (14 m) and a deck 46 ft wide.

Who owns HWY Middle ST over RR MBTA?

It is owned by the State Highway Agency.