US Bridges

County Road 48 over Salmon River

Good

Oswego County, New York · 2.2 MI NW of Altmar · Structure no. 000000003313730

Built
2011
14 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
233 ft
2 main spans
Daily traffic
782
2019 count
Owner
County
County Highway Agency

About this bridge

County Road 48 over Salmon River is a steel continuous stringer/multi-beam or girder carrying County Road 48 over Salmon River in Oswego County, New York. It was built in 2011, so it is 14 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 782 vehicles a day, roughly 9% of them trucks, projected to reach 1,095 by 2039. The structure is 233 ft (71 m) long and 38 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesCounty Road 48
CrossesSalmon River
Location2.2 MI NW of Altmar
RouteCounty Highway 0
CountyOswego County
StateNew York
Coordinates43.53104, -76.03751
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable 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 rating59.3 US tons
Inventory rating45.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length233 ft (71 m)
Longest span138 ft (42.1 m)
Deck width38 ft (11.7 m)
Roadway width30 ft (9 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic782 (2019)
Projected traffic1,095 by 2039
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$3.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 48 over Salmon River built?

It was built in 2011, making it 14 years old in 2025.

What condition is County Road 48 over Salmon River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does County Road 48 over Salmon River carry?

About 782 vehicles per day (2019 count), of which roughly 9% are trucks.

How long is County Road 48 over Salmon River?

The structure is 233 ft (71 m) long with a longest span of 138 ft (42.1 m) and a deck 38 ft wide.

Who owns County Road 48 over Salmon River?

It is owned by the County Highway Agency.