US Bridges

HWY Webster Ave over RR Mbta/Bmrr

PoorPosted for load

Middlesex County, Massachusetts · Over Railroad · Structure no. S170163GFDOT634

Built
1911
114 years old
Condition
Poor
inspected September 2024
Type
Girder and Floorbeam System
Steel
Length
95 ft
1 main span
Daily traffic
27,350
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Webster Ave over RR Mbta/Bmrr is a steel girder and floorbeam system carrying HWY Webster Ave over RR Mbta/Bmrr in Middlesex County, Massachusetts. It was built in 1911, so it is 114 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 3 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. Its operating status is: posted for load restriction.

It carries about 27,350 vehicles a day, roughly 8% of them trucks, projected to reach 17,609 by 2032. The structure is 95 ft (29.1 m) long and 69 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY Webster Ave
CrossesRR Mbta/Bmrr
LocationOver Railroad
RouteCity Street 0
CountyMiddlesex County
StateMassachusetts
Coordinates42.3778, -71.09582
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 6 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating30.1 US tons
Inventory rating19.4 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length95 ft (29.1 m)
Longest span89 ft (27.1 m)
Deck width69 ft (21 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,350 (2024)
Projected traffic17,609 by 2032
Trucks8%
Lanes on structure4
Traffic directionOne-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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$15.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Webster Ave over RR Mbta/Bmrr built?

It was built in 1911, making it 114 years old in 2025.

What condition is HWY Webster Ave over RR Mbta/Bmrr 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 September 2024.

How much traffic does HWY Webster Ave over RR Mbta/Bmrr carry?

About 27,350 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is HWY Webster Ave over RR Mbta/Bmrr?

The structure is 95 ft (29.1 m) long with a longest span of 89 ft (27.1 m) and a deck 69 ft wide.

Who owns HWY Webster Ave over RR Mbta/Bmrr?

It is owned by the State Highway Agency.