US Bridges

HWY Boylston ST over RR Bmrr

Good

Middlesex County, Massachusetts · 0.4 KM N RTE 495 · Structure no. L15005AMNDOT634

Built
1999
26 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
57 ft
1 main span
Daily traffic
14,000
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Boylston ST over RR Bmrr is a prestressed concrete box beam or girders - multiple carrying HWY Boylston ST over RR Bmrr in Middlesex County, Massachusetts. It was built in 1999, so it is 26 years old, younger 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 14,000 vehicles a day, roughly 7% of them trucks, projected to reach 24,637 by 2031. The structure is 57 ft (17.3 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesHWY Boylston ST
CrossesRR Bmrr
Location0.4 KM N RTE 495
RouteCity Street 0
CountyMiddlesex County
StateMassachusetts
Coordinates42.62482, -71.28485
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 inspectionJune 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 alignment8: Equal to present desirable criteria
Operating rating66.1 US tons
Inventory rating39.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length57 ft (17.3 m)
Longest span52 ft (15.8 m)
Deck width45 ft (13.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,000 (2024)
Projected traffic24,637 by 2031
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.1 mi (5 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Boylston ST over RR Bmrr built?

It was built in 1999, making it 26 years old in 2025.

What condition is HWY Boylston ST over RR 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 June 2024.

How much traffic does HWY Boylston ST over RR Bmrr carry?

About 14,000 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is HWY Boylston ST over RR Bmrr?

The structure is 57 ft (17.3 m) long with a longest span of 52 ft (15.8 m) and a deck 45 ft wide.

Who owns HWY Boylston ST over RR Bmrr?

It is owned by the State Highway Agency.