US Bridges

ST146 SB over HWY Elmwood Ave

Fair

Worcester County, Massachusetts · .5 MI N of Rt 146-A · Structure no. U020551N3DOTNBI

Built
1984
41 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
93 ft
1 main span
Daily traffic
15,752
2022 count
Owner
State
State Highway Agency

About this bridge

ST146 SB over HWY Elmwood Ave is a prestressed concrete stringer/multi-beam or girder carrying ST146 SB over HWY Elmwood Ave in Worcester County, Massachusetts. It was built in 1984, so it is 41 years old, younger 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 6 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 15,752 vehicles a day, roughly 8% of them trucks, projected to reach 31,586 by 2032. The structure is 93 ft (28.4 m) long and 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesST146 SB
CrossesHWY Elmwood Ave
Location.5 MI N of Rt 146-A
RouteState Highway 146
CountyWorcester County
StateMassachusetts
Coordinates42.02719, -71.61103
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.7 US tons
Inventory rating36.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length93 ft (28.4 m)
Longest span87 ft (26.5 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,752 (2022)
Projected traffic31,586 by 2032
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$781,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST146 SB over HWY Elmwood Ave built?

It was built in 1984, making it 41 years old in 2025.

What condition is ST146 SB over HWY Elmwood Ave 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 April 2023.

How much traffic does ST146 SB over HWY Elmwood Ave carry?

About 15,752 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is ST146 SB over HWY Elmwood Ave?

The structure is 93 ft (28.4 m) long with a longest span of 87 ft (26.5 m) and a deck 45 ft wide.

Who owns ST146 SB over HWY Elmwood Ave?

It is owned by the State Highway Agency.