US Bridges

RTE 27 over County Road 51 County R

Fair

Suffolk County, New York · Exit 61 of S.H.27 · Structure no. 000000001019402

Built
1963
62 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
289 ft
4 main spans
Daily traffic
17,863
2019 count
Owner
State
State Highway Agency

About this bridge

RTE 27 over County Road 51 County R is a steel stringer/multi-beam or girder carrying RTE 27 over County Road 51 County R in Suffolk County, New York. It was built in 1963, so it is 62 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 17,863 vehicles a day, roughly 7% of them trucks, projected to reach 21,248 by 2041. The structure is 289 ft (88.1 m) long and 46 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE 27
CrossesCounty Road 51 County R
LocationExit 61 of S.H.27
RouteState Highway 27
CountySuffolk County
StateNew York
Coordinates40.83386, -72.74744
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length289 ft (88.1 m)
Longest span86 ft (26.2 m)
Deck width46 ft (14 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,863 (2019)
Projected traffic21,248 by 2041
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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$9.6 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 27 over County Road 51 County R built?

It was built in 1963, making it 62 years old in 2025.

What condition is RTE 27 over County Road 51 County R 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 August 2023.

How much traffic does RTE 27 over County Road 51 County R carry?

About 17,863 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is RTE 27 over County Road 51 County R?

The structure is 289 ft (88.1 m) long with a longest span of 86 ft (26.2 m) and a deck 46 ft wide.

Who owns RTE 27 over County Road 51 County R?

It is owned by the State Highway Agency.