US Bridges

HWY Bacon ST over Water Aberjona River

Fair

Middlesex County, Massachusetts · 1.13 KM W of Medford · Structure no. W400012CFMUNNBI

Built
1920
105 years old
Condition
Fair
inspected March 2024
Type
Arch - Deck
Concrete
Length
30 ft
1 main span
Daily traffic
18,200
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Bacon ST over Water Aberjona River is a concrete arch - deck carrying HWY Bacon ST over Water Aberjona River in Middlesex County, Massachusetts. It was built in 1920, so it is 105 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 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 18,200 vehicles a day, roughly 7% of them trucks, projected to reach 18,794 by 2033. The structure is 30 ft (9.1 m) long and 60 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesHWY Bacon ST
CrossesWater Aberjona River
Location1.13 KM W of Medford
RouteCity Street 0
CountyMiddlesex County
StateMassachusetts
Coordinates42.44434, -71.13879
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.1 US tons
Inventory rating33.6 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width60 ft (18.2 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,200 (2024)
Projected traffic18,794 by 2033
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.8 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Bacon ST over Water Aberjona River built?

It was built in 1920, making it 105 years old in 2025.

What condition is HWY Bacon ST over Water Aberjona River 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 March 2024.

How much traffic does HWY Bacon ST over Water Aberjona River carry?

About 18,200 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is HWY Bacon ST over Water Aberjona River?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 60 ft wide.

Who owns HWY Bacon ST over Water Aberjona River?

It is owned by the Town or Township Highway Agency.