US Bridges

ST 30 Boston RD over Water Sudbury Reservoir

Fair

Worcester County, Massachusetts · 600 Ft E of Framingham RD · Structure no. S200164D0DOTNBI

Built
1895
130 years old
Condition
Fair
inspected September 2023
Type
Arch - Deck
Masonry
Length
24 ft
1 main span
Daily traffic
11,137
2022 count
Owner
State
State Highway Agency

About this bridge

ST 30 Boston RD over Water Sudbury Reservoir is a masonry arch - deck carrying ST 30 Boston RD over Water Sudbury Reservoir in Worcester County, Massachusetts. It was built in 1895, so it is 130 years old, older 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 11,137 vehicles a day, roughly 1% of them trucks, projected to reach 23,690 by 2032. The structure is 24 ft (7.3 m) long and 75 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesST 30 Boston RD
CrossesWater Sudbury Reservoir
Location600 Ft E of Framingham RD
RouteState Highway 30
CountyWorcester County
StateMassachusetts
Coordinates42.30335, -71.51276
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width75 ft (23 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,137 (2022)
Projected traffic23,690 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$694,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 30 Boston RD over Water Sudbury Reservoir built?

It was built in 1895, making it 130 years old in 2025.

What condition is ST 30 Boston RD over Water Sudbury Reservoir 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 ST 30 Boston RD over Water Sudbury Reservoir carry?

About 11,137 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is ST 30 Boston RD over Water Sudbury Reservoir?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 75 ft wide.

Who owns ST 30 Boston RD over Water Sudbury Reservoir?

It is owned by the State Highway Agency.