US Bridges

Red Bridge RD over Orchard Neck Crk

Fair

Suffolk County, New York · At Center Moriches · Structure no. 000000003300790

Built
1957
68 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
1,280
2021 count
Owner
County
County Highway Agency

About this bridge

Red Bridge RD over Orchard Neck Crk is a steel stringer/multi-beam or girder carrying Red Bridge RD over Orchard Neck Crk in Suffolk County, New York. It was built in 1957, so it is 68 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.

It carries about 1,280 vehicles a day, roughly 4% of them trucks, projected to reach 1,792 by 2041. The structure is 51 ft (15.5 m) long and 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRed Bridge RD
CrossesOrchard Neck Crk
LocationAt Center Moriches
Coordinates40.79556, -72.785
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.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating50 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span48 ft (14.6 m)
Deck width45 ft (13.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,280 (2021)
Projected traffic1,792 by 2041
Trucks4%
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$2.8 million (2024 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Red Bridge RD over Orchard Neck Crk built?

It was built in 1957, making it 68 years old in 2025.

What condition is Red Bridge RD over Orchard Neck Crk 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 Red Bridge RD over Orchard Neck Crk carry?

About 1,280 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Red Bridge RD over Orchard Neck Crk?

The structure is 51 ft (15.5 m) long with a longest span of 48 ft (14.6 m) and a deck 45 ft wide.

Who owns Red Bridge RD over Orchard Neck Crk?

It is owned by the County Highway Agency.