US Bridges

RTE 104 over Little Salmon River

Fair

Oswego County, New York · .2 MI E JCT SH 104 & SH 3 · Structure no. 000000001036620

Built
1992
33 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
89 ft
1 main span
Daily traffic
3,439
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 104 over Little Salmon River is a steel stringer/multi-beam or girder carrying RTE 104 over Little Salmon River in Oswego County, New York. It was built in 1992, so it is 33 years old, younger 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 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 3,439 vehicles a day, roughly 14% of them trucks, projected to reach 3,555 by 2041. The structure is 89 ft (27.1 m) long and 50 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRTE 104
CrossesLittle Salmon River
Location.2 MI E JCT SH 104 & SH 3
RouteState Highway 104
CountyOswego County
StateNew York
Coordinates43.45985, -76.22658
Functional classRural Principal Arterial - Other

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating47 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length89 ft (27.1 m)
Longest span86 ft (26.2 m)
Deck width50 ft (15.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,439 (2021)
Projected traffic3,555 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 104 over Little Salmon River built?

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

What condition is RTE 104 over Little Salmon 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 June 2023.

How much traffic does RTE 104 over Little Salmon River carry?

About 3,439 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is RTE 104 over Little Salmon River?

The structure is 89 ft (27.1 m) long with a longest span of 86 ft (26.2 m) and a deck 50 ft wide.

Who owns RTE 104 over Little Salmon River?

It is owned by the State Highway Agency.