US Bridges

Blythe Road over Ninemile Creek

Fair

Oswego County, New York · 2.2 MI NW of Hannibal · Structure no. 000000003208900

Built
1965
60 years old
Condition
Fair
inspected June 2024
Type
Culvert
Steel
Length
37 ft
1 main span
Daily traffic
233
2020 count
Owner
County
County Highway Agency

About this bridge

Blythe Road over Ninemile Creek is a steel culvert carrying Blythe Road over Ninemile Creek in Oswego County, New York. It was built in 1965, so it is 60 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 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 233 vehicles a day, roughly 9% of them trucks, projected to reach 326 by 2040. The structure is 37 ft (11.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBlythe Road
CrossesNinemile Creek
Location2.2 MI NW of Hannibal
Coordinates43.34753, -76.60053
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating87.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span32 ft (9.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic233 (2020)
Projected traffic326 by 2040
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$303,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Blythe Road over Ninemile Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Blythe Road over Ninemile 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 June 2024.

How much traffic does Blythe Road over Ninemile Creek carry?

About 233 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is Blythe Road over Ninemile Creek?

The structure is 37 ft (11.3 m) long with a longest span of 32 ft (9.7 m).

Who owns Blythe Road over Ninemile Creek?

It is owned by the County Highway Agency.