US Bridges

RTE 305 over Oil Creek

Fair

Allegany County, New York · .6 Mile North of Cuba · Structure no. 000000001045500

Built
1966
59 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
44 ft
2 main spans
Daily traffic
4,976
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 305 over Oil Creek is a concrete culvert carrying RTE 305 over Oil Creek in Allegany County, New York. It was built in 1966, so it is 59 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 4,976 vehicles a day, roughly 10% of them trucks, projected to reach 5,190 by 2041. The structure is 44 ft (13.4 m) long and 58 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

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CarriesRTE 305
CrossesOil Creek
Location.6 Mile North of Cuba
RouteState Highway 305
CountyAllegany County
StateNew York
Coordinates42.22645, -78.27729
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.3 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length44 ft (13.4 m)
Longest span20 ft (6 m)
Deck width58 ft (17.8 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,976 (2020)
Projected traffic5,190 by 2041
Trucks10%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed29.8 mi (48 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$2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 305 over Oil Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is RTE 305 over Oil 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 March 2024.

How much traffic does RTE 305 over Oil Creek carry?

About 4,976 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is RTE 305 over Oil Creek?

The structure is 44 ft (13.4 m) long with a longest span of 20 ft (6 m) and a deck 58 ft wide.

Who owns RTE 305 over Oil Creek?

It is owned by the State Highway Agency.