US Bridges

RTE 370 over Seneca River

Fair

Onondaga County, New York · JCT RTE 370 + Seneca R · Structure no. 000000004046860

Built
1958
67 years old, rebuilt 2013
Condition
Fair
inspected September 2023
Type
Girder and Floorbeam System
Steel
Length
507 ft
3 main spans
Daily traffic
12,983
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 370 over Seneca River is a steel girder and floorbeam system carrying RTE 370 over Seneca River in Onondaga County, New York. It was built in 1958 and reconstructed in 2013, so it is 67 years old, older than the New York average of 53 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 12,983 vehicles a day, roughly 4% of them trucks, projected to reach 15,771 by 2041. The structure is 507 ft (154.5 m) long and 43 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

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CarriesRTE 370
CrossesSeneca River
LocationJCT RTE 370 + Seneca R
RouteState Highway 370
CountyOnondaga County
StateNew York
Coordinates43.13044, -76.25365
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating36 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length507 ft (154.5 m)
Longest span250 ft (76.2 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,983 (2020)
Projected traffic15,771 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$7.7 million (2024 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was RTE 370 over Seneca River built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2013.

What condition is RTE 370 over Seneca 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 2023.

How much traffic does RTE 370 over Seneca River carry?

About 12,983 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is RTE 370 over Seneca River?

The structure is 507 ft (154.5 m) long with a longest span of 250 ft (76.2 m) and a deck 43 ft wide.

Who owns RTE 370 over Seneca River?

It is owned by the State Highway Agency.