US Bridges

ST 2 Brookline ST over Comb Sol Fld RD & Riv

Fair

Suffolk County, Massachusetts · City Line Bos Camb · Structure no. B160074EGDOTNBI

Built
1928
97 years old
Condition
Fair
inspected January 2024
Type
Arch - Thru
Steel
Length
724 ft
1 main span
Daily traffic
37,370
2024 count
Owner
State
State Highway Agency

About this bridge

ST 2 Brookline ST over Comb Sol Fld RD & Riv is a steel arch - thru carrying ST 2 Brookline ST over Comb Sol Fld RD & Riv in Suffolk County, Massachusetts. It was built in 1928, so it is 97 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 37,370 vehicles a day, roughly 2% of them trucks, projected to reach 64,751 by 2032. The structure is 724 ft (220.7 m) long and 63 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesST 2 Brookline ST
CrossesComb Sol Fld RD & Riv
LocationCity Line Bos Camb
RouteState Highway 2
Coordinates42.35262, -71.11064
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.1 US tons
Inventory rating36.4 US tons

Structure

Structure typeArch - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+6 approach)
Design loadHS 20
Structure length724 ft (220.7 m)
Longest span170 ft (51.8 m)
Deck width63 ft (19.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic37,370 (2024)
Projected traffic64,751 by 2032
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway, waterway and railroad
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 statusListed on the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$41.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 2 Brookline ST over Comb Sol Fld RD & Riv built?

It was built in 1928, making it 97 years old in 2025.

What condition is ST 2 Brookline ST over Comb Sol Fld RD & Riv 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 ST 2 Brookline ST over Comb Sol Fld RD & Riv carry?

About 37,370 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is ST 2 Brookline ST over Comb Sol Fld RD & Riv?

The structure is 724 ft (220.7 m) long with a longest span of 170 ft (51.8 m) and a deck 63 ft wide.

Who owns ST 2 Brookline ST over Comb Sol Fld RD & Riv?

It is owned by the State Highway Agency.