US Bridges

HWY Lake ST over RR Mbta/Bmrr

Fair

Middlesex County, Massachusetts · 0.3 MI NE of ST-129 · Structure no. W380072NTDOT634

Built
1986
39 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
4,790
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Lake ST over RR Mbta/Bmrr is a prestressed concrete box beam or girders - multiple carrying HWY Lake ST over RR Mbta/Bmrr in Middlesex County, Massachusetts. It was built in 1986, so it is 39 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 4,790 vehicles a day, roughly 5% of them trucks, projected to reach 10,265 by 2031. The structure is 62 ft (18.9 m) long and 37 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesHWY Lake ST
CrossesRR Mbta/Bmrr
Location0.3 MI NE of ST-129
RouteCity Street 0
CountyMiddlesex County
StateMassachusetts
Coordinates42.56441, -71.19981
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
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 alignment8: Equal to present desirable criteria
Operating rating80.7 US tons
Inventory rating50.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span56 ft (17.1 m)
Deck width37 ft (11.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,790 (2024)
Projected traffic10,265 by 2031
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.7 mi (6 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2.2 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Lake ST over RR Mbta/Bmrr built?

It was built in 1986, making it 39 years old in 2025.

What condition is HWY Lake ST over RR Mbta/Bmrr 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 July 2024.

How much traffic does HWY Lake ST over RR Mbta/Bmrr carry?

About 4,790 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is HWY Lake ST over RR Mbta/Bmrr?

The structure is 62 ft (18.9 m) long with a longest span of 56 ft (17.1 m) and a deck 37 ft wide.

Who owns HWY Lake ST over RR Mbta/Bmrr?

It is owned by the State Highway Agency.