US Bridges

ST 30 Main ST over Water Wach Aqueduct

Fair

Worcester County, Massachusetts · .2 Mi. E. of I-495 · Structure no. S200201YTDOTNBI

Built
1962
63 years old
Condition
Fair
inspected November 2024
Type
Slab
Prestressed Concrete
Length
25 ft
1 main span
Daily traffic
5,562
2023 count
Owner
State
State Highway Agency

About this bridge

ST 30 Main ST over Water Wach Aqueduct is a prestressed concrete slab carrying ST 30 Main ST over Water Wach Aqueduct in Worcester County, Massachusetts. It was built in 1962, so it is 63 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 5,562 vehicles a day, roughly 6% of them trucks, projected to reach 14,214 by 2031. The structure is 25 ft (7.6 m) long and 46 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesST 30 Main ST
CrossesWater Wach Aqueduct
Location.2 Mi. E. of I-495
RouteState Highway 30
CountyWorcester County
StateMassachusetts
Coordinates42.30741, -71.55861
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.3 US tons
Inventory rating57.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length25 ft (7.6 m)
Longest span20 ft (6.1 m)
Deck width46 ft (14 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,562 (2023)
Projected traffic14,214 by 2031
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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$1.1 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 30 Main ST over Water Wach Aqueduct built?

It was built in 1962, making it 63 years old in 2025.

What condition is ST 30 Main ST over Water Wach Aqueduct 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 November 2024.

How much traffic does ST 30 Main ST over Water Wach Aqueduct carry?

About 5,562 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is ST 30 Main ST over Water Wach Aqueduct?

The structure is 25 ft (7.6 m) long with a longest span of 20 ft (6.1 m) and a deck 46 ft wide.

Who owns ST 30 Main ST over Water Wach Aqueduct?

It is owned by the State Highway Agency.