US Bridges

HWY Baker ST over RR Mbta/Csx

Fair

Suffolk County, Massachusetts · .8 KM NE of JCT SR109&RT1 · Structure no. B161743HEDOT634

Built
1906
119 years old, rebuilt 1977
Condition
Fair
inspected February 2024
Type
Slab
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
11,121
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Baker ST over RR Mbta/Csx is a prestressed concrete slab carrying HWY Baker ST over RR Mbta/Csx in Suffolk County, Massachusetts. It was built in 1906 and reconstructed in 1977, so it is 119 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 11,121 vehicles a day, roughly 5% of them trucks, projected to reach 13,424 by 2033. The structure is 40 ft (12.3 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHWY Baker ST
CrossesRR Mbta/Csx
Location.8 KM NE of JCT SR109&RT1
RouteCity Street 0
CountySuffolk County
StateMassachusetts
Coordinates42.2793, -71.16745
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
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 inspectionFebruary 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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.5 US tons
Inventory rating42.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length40 ft (12.3 m)
Longest span39 ft (11.8 m)
Deck width43 ft (13 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,121 (2024)
Projected traffic13,424 by 2033
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Baker ST over RR Mbta/Csx built?

It was built in 1906, making it 119 years old in 2025. It was reconstructed in 1977.

What condition is HWY Baker ST over RR Mbta/Csx 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 February 2024.

How much traffic does HWY Baker ST over RR Mbta/Csx carry?

About 11,121 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is HWY Baker ST over RR Mbta/Csx?

The structure is 40 ft (12.3 m) long with a longest span of 39 ft (11.8 m) and a deck 43 ft wide.

Who owns HWY Baker ST over RR Mbta/Csx?

It is owned by the State Highway Agency.