US Bridges

Oaklawn Avenue over Jockey Creek

Good

Suffolk County, New York · 0.5 MI S of Southold · Structure no. 000000003300660

Built
1986
39 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
128 ft
3 main spans
Daily traffic
2,387
2020 count
Owner
County
County Highway Agency

About this bridge

Oaklawn Avenue over Jockey Creek is a prestressed concrete box beam or girders - multiple carrying Oaklawn Avenue over Jockey Creek in Suffolk County, New York. It was built in 1986, so it is 39 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,387 vehicles a day, roughly 6% of them trucks, projected to reach 2,953 by 2041. The structure is 128 ft (39 m) long and 46 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesOaklawn Avenue
CrossesJockey Creek
Location0.5 MI S of Southold
Coordinates41.05537, -72.42619
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum 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 rating48.6 US tons
Inventory rating37.5 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length128 ft (39 m)
Longest span47 ft (14.3 m)
Deck width46 ft (14 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,387 (2020)
Projected traffic2,953 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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$3 million (2024 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Oaklawn Avenue over Jockey Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Oaklawn Avenue over Jockey Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does Oaklawn Avenue over Jockey Creek carry?

About 2,387 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Oaklawn Avenue over Jockey Creek?

The structure is 128 ft (39 m) long with a longest span of 47 ft (14.3 m) and a deck 46 ft wide.

Who owns Oaklawn Avenue over Jockey Creek?

It is owned by the County Highway Agency.