US Bridges

Horse Block Road over 27 27 07051287 RTE 27

Fair

Suffolk County, New York · 5.2 MI E JCT SH27 & SH112 · Structure no. 000000001019319

Built
1960
65 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
241 ft
4 main spans
Daily traffic
14,876
2020 count
Owner
State
State Highway Agency

About this bridge

Horse Block Road over 27 27 07051287 RTE 27 is a steel stringer/multi-beam or girder carrying Horse Block Road over 27 27 07051287 RTE 27 in Suffolk County, New York. It was built in 1960, so it is 65 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 14,876 vehicles a day, roughly 9% of them trucks, projected to reach 18,071 by 2041. The structure is 241 ft (73.5 m) long and 96 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHorse Block Road
Crosses27 27 07051287 RTE 27
Location5.2 MI E JCT SH27 & SH112
RouteCounty Highway 0
CountySuffolk County
StateNew York
Coordinates40.79676, -72.91011
Functional classUrban Minor Arterial

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.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length241 ft (73.5 m)
Longest span76 ft (23.1 m)
Deck width96 ft (29.3 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,876 (2020)
Projected traffic18,071 by 2041
Trucks9%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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$15.4 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Horse Block Road over 27 27 07051287 RTE 27 built?

It was built in 1960, making it 65 years old in 2025.

What condition is Horse Block Road over 27 27 07051287 RTE 27 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 Horse Block Road over 27 27 07051287 RTE 27 carry?

About 14,876 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is Horse Block Road over 27 27 07051287 RTE 27?

The structure is 241 ft (73.5 m) long with a longest span of 76 ft (23.1 m) and a deck 96 ft wide.

Who owns Horse Block Road over 27 27 07051287 RTE 27?

It is owned by the State Highway Agency.