US Bridges

New Suffolk Ave over West Creek

Fair

Suffolk County, New York · 0.5 MI W. of New Suffolk · Structure no. 000000003300430

Built
1986
39 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
93 ft
2 main spans
Daily traffic
1,780
2020 count
Owner
County
County Highway Agency

About this bridge

New Suffolk Ave over West Creek is a prestressed concrete box beam or girders - multiple carrying New Suffolk Ave over West 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 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 1,780 vehicles a day, roughly 4% of them trucks, projected to reach 2,202 by 2041. The structure is 93 ft (28.3 m) long and 29 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesNew Suffolk Ave
CrossesWest Creek
Location0.5 MI W. of New Suffolk
CountySuffolk County
StateNew York
Coordinates40.99106, -72.48201
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86 US tons
Inventory rating39 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length93 ft (28.3 m)
Longest span45 ft (13.7 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,780 (2020)
Projected traffic2,202 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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$2.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was New Suffolk Ave over West Creek built?

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

What condition is New Suffolk Ave over West 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 April 2024.

How much traffic does New Suffolk Ave over West Creek carry?

About 1,780 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is New Suffolk Ave over West Creek?

The structure is 93 ft (28.3 m) long with a longest span of 45 ft (13.7 m) and a deck 29 ft wide.

Who owns New Suffolk Ave over West Creek?

It is owned by the County Highway Agency.