US Bridges

ST145 Rev Bch Pkwy over Comb Blue LN & State RD

Good

Suffolk County, Massachusetts · .1 MI N of Winthrop Ave · Structure no. R050164DCDOTNBI

Built
1933
92 years old, rebuilt 2014
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
113 ft
2 main spans
Daily traffic
30,300
2024 count
Owner
State
State Highway Agency

About this bridge

ST145 Rev Bch Pkwy over Comb Blue LN & State RD is a steel stringer/multi-beam or girder carrying ST145 Rev Bch Pkwy over Comb Blue LN & State RD in Suffolk County, Massachusetts. It was built in 1933 and reconstructed in 2014, so it is 92 years old, older than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30,300 vehicles a day, roughly 8% of them trucks, projected to reach 31,428 by 2032. The structure is 113 ft (34.4 m) long and 86 ft wide.

CarriesST145 Rev Bch Pkwy
CrossesComb Blue LN & State RD
Location.1 MI N of Winthrop Ave
RouteState Highway 145
Coordinates42.39999, -70.99135
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating85.8 US tons
Inventory rating64.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length113 ft (34.4 m)
Longest span60 ft (18.3 m)
Deck width86 ft (26.1 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,300 (2024)
Projected traffic31,428 by 2032
Trucks8%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed—
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$5.2 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST145 Rev Bch Pkwy over Comb Blue LN & State RD built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 2014.

What condition is ST145 Rev Bch Pkwy over Comb Blue LN & State RD in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does ST145 Rev Bch Pkwy over Comb Blue LN & State RD carry?

About 30,300 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is ST145 Rev Bch Pkwy over Comb Blue LN & State RD?

The structure is 113 ft (34.4 m) long with a longest span of 60 ft (18.3 m) and a deck 86 ft wide.

Who owns ST145 Rev Bch Pkwy over Comb Blue LN & State RD?

It is owned by the State Highway Agency.