US Bridges

HWY Jackson ST over RR Mbta/Bmrr

FairPosted for load

Middlesex County, Massachusetts · 0.16 KM S Central ST · Structure no. W040112NKDOT634

Built
1934
91 years old, rebuilt 1989
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
37 ft
1 main span
Daily traffic
2,300
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Jackson ST over RR Mbta/Bmrr is a wood or timber stringer/multi-beam or girder carrying HWY Jackson ST over RR Mbta/Bmrr in Middlesex County, Massachusetts. It was built in 1934 and reconstructed in 1989, so it is 91 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. Its operating status is: posted for load restriction.

It carries about 2,300 vehicles a day, roughly 5% of them trucks, projected to reach 2,053 by 2031. The structure is 37 ft (11.3 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY Jackson ST
CrossesRR Mbta/Bmrr
Location0.16 KM S Central ST
RouteCity Street 0
CountyMiddlesex County
StateMassachusetts
Coordinates42.37511, -71.23109
Functional classUrban Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating20.1 US tons
Inventory rating13.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span30 ft (9 m)
Deck width34 ft (10.5 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2024)
Projected traffic2,053 by 2031
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

OwnerState Highway Agency
Maintained byState 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$1.2 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

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

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1989.

What condition is HWY Jackson 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 Jackson ST over RR Mbta/Bmrr carry?

About 2,300 vehicles per day (2024 count), of which roughly 5% are trucks.

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

The structure is 37 ft (11.3 m) long with a longest span of 30 ft (9 m) and a deck 34 ft wide.

Who owns HWY Jackson ST over RR Mbta/Bmrr?

It is owned by the State Highway Agency.