US Bridges

HWY Walworth ST over RR MBTA

Poor

Suffolk County, Massachusetts · Just N of Belgrade Ave · Structure no. B1611438FMUNNBI

Built
1918
107 years old, rebuilt 1996
Condition
Poor
inspected June 2023
Type
Slab
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
10,216
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

HWY Walworth ST over RR MBTA is a prestressed concrete slab carrying HWY Walworth ST over RR MBTA in Suffolk County, Massachusetts. It was built in 1918 and reconstructed in 1996, so it is 107 years old, older than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 10,216 vehicles a day, roughly 5% of them trucks, projected to reach 11,687 by 2032. The structure is 40 ft (12.1 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY Walworth ST
CrossesRR MBTA
LocationJust N of Belgrade Ave
RouteCity Street 0
CountySuffolk County
StateMassachusetts
Coordinates42.28674, -71.13703
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating72.4 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length40 ft (12.1 m)
Longest span35 ft (10.7 m)
Deck width38 ft (11.5 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,216 (2023)
Projected traffic11,687 by 2032
Trucks5%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Walworth ST over RR MBTA built?

It was built in 1918, making it 107 years old in 2025. It was reconstructed in 1996.

What condition is HWY Walworth ST over RR MBTA in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.

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

About 10,216 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is HWY Walworth ST over RR MBTA?

The structure is 40 ft (12.1 m) long with a longest span of 35 ft (10.7 m) and a deck 38 ft wide.

Who owns HWY Walworth ST over RR MBTA?

It is owned by the City or Municipal Highway Agency.