US Bridges

RTE 906B over Crooked Hill RD

Good

Suffolk County, New York · .4 MI W JCT Sagtikos &lie · Structure no. 000000001049371

Built
1993
32 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
82 ft
1 main span
Daily traffic
11,649
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 906B over Crooked Hill RD is a steel stringer/multi-beam or girder carrying RTE 906B over Crooked Hill RD in Suffolk County, New York. It was built in 1993, so it is 32 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 11,649 vehicles a day, roughly 11% of them trucks, projected to reach 13,440 by 2041. The structure is 82 ft (25 m) long and 54 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE 906B
CrossesCrooked Hill RD
Location.4 MI W JCT Sagtikos &lie
RouteState Highway 906B
Coordinates40.80522, -73.28787
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 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 rating65 US tons
Inventory rating36 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length82 ft (25 m)
Longest span78 ft (23.7 m)
Deck width54 ft (16.6 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,649 (2020)
Projected traffic13,440 by 2041
Trucks11%
Lanes on structure3
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$6.1 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 906B over Crooked Hill RD built?

It was built in 1993, making it 32 years old in 2025.

What condition is RTE 906B over Crooked Hill RD in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does RTE 906B over Crooked Hill RD carry?

About 11,649 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is RTE 906B over Crooked Hill RD?

The structure is 82 ft (25 m) long with a longest span of 78 ft (23.7 m) and a deck 54 ft wide.

Who owns RTE 906B over Crooked Hill RD?

It is owned by the State Highway Agency.