US Bridges

ST145 Rev Bch Pkwy over RR Mbta/Bmrr

Good

Suffolk County, Massachusetts · .1 MI E of ST 1A · Structure no. R050014DBDOTNBI

Built
1899
126 years old, rebuilt 2015
Condition
Good
inspected December 2023
Type
Truss - Thru
Steel
Length
100 ft
1 main span
Daily traffic
51,500
2019 count
Owner
State
State Highway Agency

About this bridge

ST145 Rev Bch Pkwy over RR Mbta/Bmrr is a steel truss - thru carrying ST145 Rev Bch Pkwy over RR Mbta/Bmrr in Suffolk County, Massachusetts. It was built in 1899 and reconstructed in 2015, so it is 126 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 51,500 vehicles a day, roughly 1% of them trucks, projected to reach 121,606 by 2032. The structure is 100 ft (30.6 m) long and 77 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesST145 Rev Bch Pkwy
CrossesRR Mbta/Bmrr
Location.1 MI E of ST 1A
RouteState Highway 145
CountySuffolk County
StateMassachusetts
Coordinates42.40493, -71.00451
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length100 ft (30.6 m)
Longest span97 ft (29.7 m)
Deck width77 ft (23.6 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51,500 (2019)
Projected traffic121,606 by 2032
Trucks1%
Lanes on structure6
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 statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$5.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST145 Rev Bch Pkwy over RR Mbta/Bmrr built?

It was built in 1899, making it 126 years old in 2025. It was reconstructed in 2015.

What condition is ST145 Rev Bch Pkwy over RR Mbta/Bmrr 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 December 2023.

How much traffic does ST145 Rev Bch Pkwy over RR Mbta/Bmrr carry?

About 51,500 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is ST145 Rev Bch Pkwy over RR Mbta/Bmrr?

The structure is 100 ft (30.6 m) long with a longest span of 97 ft (29.7 m) and a deck 77 ft wide.

Who owns ST145 Rev Bch Pkwy over RR Mbta/Bmrr?

It is owned by the State Highway Agency.