US Bridges

US 20 Southbrge RD over Water French River

Fair

Worcester County, Massachusetts · .1 MI E of ST-56 · Structure no. O060021LGDOTNBI

Built
1956
69 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
70 ft
1 main span
Daily traffic
32,520
2022 count
Owner
State
State Highway Agency

About this bridge

US 20 Southbrge RD over Water French River is a steel stringer/multi-beam or girder carrying US 20 Southbrge RD over Water French River in Worcester County, Massachusetts. It was built in 1956, so it is 69 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 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 32,520 vehicles a day, roughly 5% of them trucks, projected to reach 36,482 by 2032. The structure is 70 ft (21.3 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 20 Southbrge RD
CrossesWater French River
Location.1 MI E of ST-56
RouteU.S. Route 20
Coordinates42.16803, -71.89172
Functional classUrban Other Principal 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.7 US tons
Inventory rating44.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length70 ft (21.3 m)
Longest span64 ft (19.5 m)
Deck width57 ft (17.4 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,520 (2022)
Projected traffic36,482 by 2032
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$3.7 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 20 Southbrge RD over Water French River built?

It was built in 1956, making it 69 years old in 2025.

What condition is US 20 Southbrge RD over Water French 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 May 2023.

How much traffic does US 20 Southbrge RD over Water French River carry?

About 32,520 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is US 20 Southbrge RD over Water French River?

The structure is 70 ft (21.3 m) long with a longest span of 64 ft (19.5 m) and a deck 57 ft wide.

Who owns US 20 Southbrge RD over Water French River?

It is owned by the State Highway Agency.