US Bridges

ST146 NB & Ramp C over Comb Choclg Rd&emrsn Bk

Fair

Worcester County, Massachusetts · Mm 3 2.6 MI S of ST-16 · Structure no. U020531MXDOTNBI

Built
1984
41 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
230 ft
2 main spans
Daily traffic
16,744
2022 count
Owner
State
State Highway Agency

About this bridge

ST146 NB & Ramp C over Comb Choclg Rd&emrsn Bk is a steel continuous stringer/multi-beam or girder carrying ST146 NB & Ramp C over Comb Choclg Rd&emrsn Bk 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 5 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 16,744 vehicles a day, roughly 17% of them trucks, projected to reach 28,427 by 2032. The structure is 230 ft (70.1 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesST146 NB & Ramp C
CrossesComb Choclg Rd&emrsn Bk
LocationMm 3 2.6 MI S of ST-16
RouteState Highway 146
CountyWorcester County
StateMassachusetts
Coordinates42.04619, -71.62769
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.7 US tons
Inventory rating40.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length230 ft (70.1 m)
Longest span113 ft (34.4 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,744 (2022)
Projected traffic28,427 by 2032
Trucks17%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.2 mi (2 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$9.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST146 NB & Ramp C over Comb Choclg Rd&emrsn Bk built?

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

What condition is ST146 NB & Ramp C over Comb Choclg Rd&emrsn Bk 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 August 2023.

How much traffic does ST146 NB & Ramp C over Comb Choclg Rd&emrsn Bk carry?

About 16,744 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is ST146 NB & Ramp C over Comb Choclg Rd&emrsn Bk?

The structure is 230 ft (70.1 m) long with a longest span of 113 ft (34.4 m) and a deck 45 ft wide.

Who owns ST146 NB & Ramp C over Comb Choclg Rd&emrsn Bk?

It is owned by the State Highway Agency.