US Bridges

County Road 48 over Trout Brook

Fair

Oswego County, New York · 3.3 MI NW of Altmar · Structure no. 000000003313740

Built
1941
84 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
651
2018 count
Owner
County
County Highway Agency

About this bridge

County Road 48 over Trout Brook is a steel stringer/multi-beam or girder carrying County Road 48 over Trout Brook in Oswego County, New York. It was built in 1941, so it is 84 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 651 vehicles a day, roughly 9% of them trucks, projected to reach 911 by 2038. The structure is 31 ft (9.4 m) long and 29 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesCounty Road 48
CrossesTrout Brook
Location3.3 MI NW of Altmar
RouteCounty Highway 0
CountyOswego County
StateNew York
Coordinates43.54708, -76.04369
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.4 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span27 ft (8.2 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic651 (2018)
Projected traffic911 by 2038
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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$1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 48 over Trout Brook built?

It was built in 1941, making it 84 years old in 2025.

What condition is County Road 48 over Trout 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 August 2024.

How much traffic does County Road 48 over Trout Brook carry?

About 651 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is County Road 48 over Trout Brook?

The structure is 31 ft (9.4 m) long with a longest span of 27 ft (8.2 m) and a deck 29 ft wide.

Who owns County Road 48 over Trout Brook?

It is owned by the County Highway Agency.