US Bridges

HWY Central ST over Water Sudbury River

Good

Middlesex County, Massachusetts · .1 MI W of Concord ST · Structure no. F0700924AMUNNBI

Built
1920
105 years old, rebuilt 2016
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
210 ft
1 main span
Daily traffic
8,000
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Central ST over Water Sudbury River is a prestressed concrete stringer/multi-beam or girder carrying HWY Central ST over Water Sudbury River in Middlesex County, Massachusetts. It was built in 1920 and reconstructed in 2016, so it is 105 years old, older than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,000 vehicles a day, roughly 6% of them trucks, projected to reach 12,634 by 2031. The structure is 210 ft (64 m) long and 50 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesHWY Central ST
CrossesWater Sudbury River
Location.1 MI W of Concord ST
RouteCity Street 0
Coordinates42.32462, -71.40151
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75 US tons
Inventory rating57.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHL 93
Structure length210 ft (64 m)
Longest span90 ft (27.4 m)
Deck width50 ft (15.3 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,000 (2022)
Projected traffic12,634 by 2031
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$3.6 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Central ST over Water Sudbury River built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 2016.

What condition is HWY Central ST over Water Sudbury River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does HWY Central ST over Water Sudbury River carry?

About 8,000 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is HWY Central ST over Water Sudbury River?

The structure is 210 ft (64 m) long with a longest span of 90 ft (27.4 m) and a deck 50 ft wide.

Who owns HWY Central ST over Water Sudbury River?

It is owned by the Town or Township Highway Agency.