US Bridges

HWY Lowell Conn over RR Mbta/Bmrr

Fair

Middlesex County, Massachusetts · .8 KM W of ST-3A · Structure no. L150782HEDOTNBI

Built
1960
65 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
116 ft
1 main span
Daily traffic
55,846
2018 count
Owner
State
State Highway Agency

About this bridge

HWY Lowell Conn over RR Mbta/Bmrr is a steel stringer/multi-beam or girder carrying HWY Lowell Conn over RR Mbta/Bmrr in Middlesex County, Massachusetts. It was built in 1960, so it is 65 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 5 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 55,846 vehicles a day, roughly 7% of them trucks, projected to reach 52,891 by 2033. The structure is 116 ft (35.4 m) long and 128 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHWY Lowell Conn
CrossesRR Mbta/Bmrr
Location.8 KM W of ST-3A
RouteState Highway 0
CountyMiddlesex County
StateMassachusetts
Coordinates42.63325, -71.31315
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating55.1 US tons
Inventory rating36.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length116 ft (35.4 m)
Longest span110 ft (33.5 m)
Deck width128 ft (38.9 m)
Roadway width122 ft (37.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55,846 (2018)
Projected traffic52,891 by 2033
Trucks7%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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$13.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Lowell Conn over RR Mbta/Bmrr built?

It was built in 1960, making it 65 years old in 2025.

What condition is HWY Lowell Conn 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 January 2024.

How much traffic does HWY Lowell Conn over RR Mbta/Bmrr carry?

About 55,846 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is HWY Lowell Conn over RR Mbta/Bmrr?

The structure is 116 ft (35.4 m) long with a longest span of 110 ft (33.5 m) and a deck 128 ft wide.

Who owns HWY Lowell Conn over RR Mbta/Bmrr?

It is owned by the State Highway Agency.