US Bridges

Biltmore Avenue over Connetquot River

FairPosted for load

Suffolk County, New York · West of Oakdale · Structure no. 000000002261510

Built
1930
95 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
4 main spans
Daily traffic
155
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Biltmore Avenue over Connetquot River is a steel stringer/multi-beam or girder carrying Biltmore Avenue over Connetquot River in Suffolk County, New York. It was built in 1930, so it is 95 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. Its operating status is: posted for load restriction.

It carries about 155 vehicles a day, roughly 11% of them trucks, projected to reach 217 by 2041. The structure is 45 ft (13.7 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesBiltmore Avenue
CrossesConnetquot River
LocationWest of Oakdale
Coordinates40.74696, -73.15029
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span18 ft (5.4 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic155 (2021)
Projected traffic217 by 2041
Trucks11%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$594,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Biltmore Avenue over Connetquot River built?

It was built in 1930, making it 95 years old in 2025.

What condition is Biltmore Avenue over Connetquot River 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 May 2024.

How much traffic does Biltmore Avenue over Connetquot River carry?

About 155 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is Biltmore Avenue over Connetquot River?

The structure is 45 ft (13.7 m) long with a longest span of 18 ft (5.4 m) and a deck 20 ft wide.

Who owns Biltmore Avenue over Connetquot River?

It is owned by the Town or Township Highway Agency.