US Bridges

Half Hollow RD over 495I495I07031050 RTE I4

Fair

Suffolk County, New York · .6 MI W JCT Rts 231+495 · Structure no. 000000001049330

Built
1963
62 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
265 ft
4 main spans
Daily traffic
4,621
2021 count
Owner
State
State Highway Agency

About this bridge

Half Hollow RD over 495I495I07031050 RTE I4 is a steel stringer/multi-beam or girder carrying Half Hollow RD over 495I495I07031050 RTE I4 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 4,621 vehicles a day, roughly 4% of them trucks, projected to reach 5,717 by 2041. The structure is 265 ft (80.8 m) long and 40 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesHalf Hollow RD
Crosses495I495I07031050 RTE I4
Location.6 MI W JCT Rts 231+495
CountySuffolk County
StateNew York
Coordinates40.79365, -73.35283
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating63.1 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length265 ft (80.8 m)
Longest span84 ft (25.6 m)
Deck width40 ft (12.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,621 (2021)
Projected traffic5,717 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed2.5 mi (4 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$7.2 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Half Hollow RD over 495I495I07031050 RTE I4 built?

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

What condition is Half Hollow RD over 495I495I07031050 RTE I4 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 March 2024.

How much traffic does Half Hollow RD over 495I495I07031050 RTE I4 carry?

About 4,621 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Half Hollow RD over 495I495I07031050 RTE I4?

The structure is 265 ft (80.8 m) long with a longest span of 84 ft (25.6 m) and a deck 40 ft wide.

Who owns Half Hollow RD over 495I495I07031050 RTE I4?

It is owned by the State Highway Agency.