US Bridges

ST146 SB on Ramp over ST146

Good

Worcester County, Massachusetts · .1 MI North of ST-146 · Structure no. W44148ALHDOTNBI

Built
2005
20 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
369 ft
3 main spans
Daily traffic
24,939
2023 count
Owner
State
State Highway Agency

About this bridge

ST146 SB on Ramp over ST146 is a steel continuous stringer/multi-beam or girder carrying ST146 SB on Ramp over ST146 in Worcester County, Massachusetts. It was built in 2005, so it is 20 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 24,939 vehicles a day, roughly 4% of them trucks, projected to reach 25,269 by 2031. The structure is 369 ft (112.6 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesST146 SB on Ramp
CrossesST146
Location.1 MI North of ST-146
RouteState Highway 146
CountyWorcester County
StateMassachusetts
Coordinates42.24569, -71.80291
Functional classUrban Principal Arterial - Interstate

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 inspectionSeptember 2024
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 alignment7: Better than present minimum criteria
Operating rating95.3 US tons
Inventory rating57.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length369 ft (112.6 m)
Longest span181 ft (55.1 m)
Deck width32 ft (9.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,939 (2023)
Projected traffic25,269 by 2031
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$6.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST146 SB on Ramp over ST146 built?

It was built in 2005, making it 20 years old in 2025.

What condition is ST146 SB on Ramp over ST146 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 September 2024.

How much traffic does ST146 SB on Ramp over ST146 carry?

About 24,939 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is ST146 SB on Ramp over ST146?

The structure is 369 ft (112.6 m) long with a longest span of 181 ft (55.1 m) and a deck 32 ft wide.

Who owns ST146 SB on Ramp over ST146?

It is owned by the State Highway Agency.