US Bridges

Niag-Orl CO LN RD over Unknown Creek

Fair

Orleans County, New York · 1.0 MI North of S.H.18 · Structure no. 000000003367960

Built
1990
35 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
255
2021 count
Owner
County
County Highway Agency

About this bridge

Niag-Orl CO LN RD over Unknown Creek is a concrete continuous culvert carrying Niag-Orl CO LN RD over Unknown Creek in Orleans County, New York. It was built in 1990, so it is 35 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 255 vehicles a day, roughly 7% of them trucks, projected to reach 357 by 2041. The structure is 23 ft (7 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesNiag-Orl CO LN RD
CrossesUnknown Creek
Location1.0 MI North of S.H.18
RouteCounty Highway 0
Coordinates43.35983, -78.46562
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating102.5 US tons
Inventory rating78.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span11 ft (3.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic255 (2021)
Projected traffic357 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$219,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Niag-Orl CO LN RD over Unknown Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Niag-Orl CO LN RD over Unknown 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 August 2024.

How much traffic does Niag-Orl CO LN RD over Unknown Creek carry?

About 255 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Niag-Orl CO LN RD over Unknown Creek?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.3 m).

Who owns Niag-Orl CO LN RD over Unknown Creek?

It is owned by the County Highway Agency.