US Bridges

ST169 Southbrdg RD over Water Cady Brook

Fair

Worcester County, Massachusetts · .6 MI N of Southbridge Tl · Structure no. C060161Y6DOTNBI

Built
1947
78 years old, rebuilt 1956
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
11,529
2023 count
Owner
State
State Highway Agency

About this bridge

ST169 Southbrdg RD over Water Cady Brook is a steel stringer/multi-beam or girder carrying ST169 Southbrdg RD over Water Cady Brook in Worcester County, Massachusetts. It was built in 1947 and reconstructed in 1956, so it is 78 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 11,529 vehicles a day, roughly 2% of them trucks, projected to reach 26,611 by 2031. The structure is 54 ft (16.6 m) long and 44 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesST169 Southbrdg RD
CrossesWater Cady Brook
Location.6 MI N of Southbridge Tl
RouteState Highway 169
Coordinates42.11052, -72.01334
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionJune 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating29.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length54 ft (16.6 m)
Longest span50 ft (15.2 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,529 (2023)
Projected traffic26,611 by 2031
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$2.2 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST169 Southbrdg RD over Water Cady Brook built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1956.

What condition is ST169 Southbrdg RD over Water Cady Brook 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 June 2024.

How much traffic does ST169 Southbrdg RD over Water Cady Brook carry?

About 11,529 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is ST169 Southbrdg RD over Water Cady Brook?

The structure is 54 ft (16.6 m) long with a longest span of 50 ft (15.2 m) and a deck 44 ft wide.

Who owns ST169 Southbrdg RD over Water Cady Brook?

It is owned by the State Highway Agency.