US Bridges

HWY North ST over RR Mbta/Bmrr

Fair

Middlesex County, Massachusetts · 1.3 KM SW SR 16 & 38 · Structure no. M12014AN5DOT634

Built
1997
28 years old
Condition
Fair
inspected July 2023
Type
Slab
Prestressed Concrete Continuous
Length
89 ft
3 main spans
Daily traffic
4,400
2019 count
Owner
State
State Highway Agency

About this bridge

HWY North ST over RR Mbta/Bmrr is a prestressed concrete continuous slab carrying HWY North ST over RR Mbta/Bmrr in Middlesex County, Massachusetts. It was built in 1997, so it is 28 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 4,400 vehicles a day, roughly 6% of them trucks, projected to reach 5,685 by 2032. The structure is 89 ft (27.2 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY North ST
CrossesRR Mbta/Bmrr
Location1.3 KM SW SR 16 & 38
RouteState Highway 0
CountyMiddlesex County
StateMassachusetts
Coordinates42.41517, -71.12518
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 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 alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating61.5 US tons
Inventory rating40.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length89 ft (27.2 m)
Longest span35 ft (10.7 m)
Deck width47 ft (14.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,400 (2019)
Projected traffic5,685 by 2032
Trucks6%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of relocation of road
Estimated improvement cost$8.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

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

It was built in 1997, making it 28 years old in 2025.

What condition is HWY North 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 2023.

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

About 4,400 vehicles per day (2019 count), of which roughly 6% are trucks.

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

The structure is 89 ft (27.2 m) long with a longest span of 35 ft (10.7 m) and a deck 47 ft wide.

Who owns HWY North ST over RR Mbta/Bmrr?

It is owned by the State Highway Agency.