US Bridges

RTE 392 over Gridley Creek

Fair

Cortland County, New York · 1.6 MI W JCT Rts 90 & 11 · Structure no. 000000001034350

Built
1996
29 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
111 ft
1 main span
Daily traffic
1,504
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 392 over Gridley Creek is a steel stringer/multi-beam or girder carrying RTE 392 over Gridley Creek in Cortland County, New York. It was built in 1996, so it is 29 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 1,504 vehicles a day, roughly 7% of them trucks, projected to reach 2,102 by 2041. The structure is 111 ft (33.8 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRTE 392
CrossesGridley Creek
Location1.6 MI W JCT Rts 90 & 11
RouteState Highway 392
CountyCortland County
StateNew York
Coordinates42.49078, -76.09814
Functional classRural Major 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
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 rating110.1 US tons
Inventory rating69 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length111 ft (33.8 m)
Longest span107 ft (32.6 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,504 (2021)
Projected traffic2,102 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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$1.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 392 over Gridley Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is RTE 392 over Gridley Creek 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 April 2024.

How much traffic does RTE 392 over Gridley Creek carry?

About 1,504 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is RTE 392 over Gridley Creek?

The structure is 111 ft (33.8 m) long with a longest span of 107 ft (32.6 m) and a deck 32 ft wide.

Who owns RTE 392 over Gridley Creek?

It is owned by the State Highway Agency.