US Bridges

HWY Concord ST over Water Sudbury River

Fair

Middlesex County, Massachusetts · 500 N of School ST · Structure no. F07010248MUNNBI

Built
1992
33 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
14,425
2018 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Concord ST over Water Sudbury River is a prestressed concrete box beam or girders - single or spread carrying HWY Concord ST over Water Sudbury River in Middlesex County, Massachusetts. It was built in 1992, so it is 33 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 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 14,425 vehicles a day, roughly 5% of them trucks, projected to reach 28,427 by 2032. The structure is 62 ft (18.9 m) long and 50 ft wide.

CarriesHWY Concord ST
CrossesWater Sudbury River
Location500 N of School ST
RouteCity Street 0
Coordinates42.3222, -71.39833
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating73.9 US tons
Inventory rating44.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span54 ft (16.5 m)
Deck width50 ft (15.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,425 (2018)
Projected traffic28,427 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.1 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Concord ST over Water Sudbury River built?

It was built in 1992, making it 33 years old in 2025.

What condition is HWY Concord ST over Water Sudbury River 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 2023.

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

About 14,425 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is HWY Concord ST over Water Sudbury River?

The structure is 62 ft (18.9 m) long with a longest span of 54 ft (16.5 m) and a deck 50 ft wide.

Who owns HWY Concord ST over Water Sudbury River?

It is owned by the Town or Township Highway Agency.