US Bridges

HWY Congress ST over Water South River

Fair

Essex County, Massachusetts · At South River · Structure no. S010042QEMUNNBI

Built
1917
108 years old, rebuilt 1996
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
135 ft
2 main spans
Daily traffic
11,720
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

HWY Congress ST over Water South River is a prestressed concrete continuous box beam or girders - multiple carrying HWY Congress ST over Water South River in Essex County, Massachusetts. It was built in 1917 and reconstructed in 1996, so it is 108 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 11,720 vehicles a day, roughly 11% of them trucks, projected to reach 11,371 by 2031. The structure is 135 ft (41.1 m) long and 65 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY Congress ST
CrossesWater South River
LocationAt South River
RouteCity Street 0
Coordinates42.51936, -70.88974
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating47.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length135 ft (41.1 m)
Longest span65 ft (19.8 m)
Deck width65 ft (19.9 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,720 (2024)
Projected traffic11,371 by 2031
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$296,000 (2025 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was HWY Congress ST over Water South River built?

It was built in 1917, making it 108 years old in 2025. It was reconstructed in 1996.

What condition is HWY Congress ST over Water South 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 September 2024.

How much traffic does HWY Congress ST over Water South River carry?

About 11,720 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is HWY Congress ST over Water South River?

The structure is 135 ft (41.1 m) long with a longest span of 65 ft (19.8 m) and a deck 65 ft wide.

Who owns HWY Congress ST over Water South River?

It is owned by the City or Municipal Highway Agency.