US Bridges

I 190 SB over HWY Mechanic ST

Fair

Worcester County, Massachusetts · Mm 18.9 .2 M S of ST2 · Structure no. L080391VWDOTNBI

Built
1977
48 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
24,800
2022 count
Owner
State
State Highway Agency

About this bridge

I 190 SB over HWY Mechanic ST is a prestressed concrete box beam or girders - single or spread carrying I 190 SB over HWY Mechanic ST in Worcester County, Massachusetts. It was built in 1977, so it is 48 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 24,800 vehicles a day, roughly 3% of them trucks, projected to reach 29,217 by 2032. The structure is 75 ft (23 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 190 SB
CrossesHWY Mechanic ST
LocationMm 18.9 .2 M S of ST2
RouteInterstate 190
CountyWorcester County
StateMassachusetts
Coordinates42.51984, -71.72549
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating77.9 US tons
Inventory rating46.6 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length75 ft (23 m)
Longest span72 ft (22 m)
Deck width52 ft (15.7 m)
Roadway width47 ft (14.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,800 (2022)
Projected traffic29,217 by 2032
Trucks3%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 190 SB over HWY Mechanic ST built?

It was built in 1977, making it 48 years old in 2025.

What condition is I 190 SB over HWY Mechanic ST 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 September 2023.

How much traffic does I 190 SB over HWY Mechanic ST carry?

About 24,800 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is I 190 SB over HWY Mechanic ST?

The structure is 75 ft (23 m) long with a longest span of 72 ft (22 m) and a deck 52 ft wide.

Who owns I 190 SB over HWY Mechanic ST?

It is owned by the State Highway Agency.