US Bridges

Knob Hill Road over Pine Kill

Fair

Sullivan County, New York · 3.2 MI NW Westbrookville · Structure no. 000000003356970

Built
1966
59 years old
Condition
Fair
inspected October 2023
Type
Slab
Wood or Timber
Length
31 ft
1 main span
Daily traffic
48
2017 count
Owner
County
County Highway Agency

About this bridge

Knob Hill Road over Pine Kill is a wood or timber slab carrying Knob Hill Road over Pine Kill in Sullivan County, New York. It was built in 1966, so it is 59 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 48 vehicles a day, roughly 3% of them trucks, projected to reach 67 by 2037. The structure is 31 ft (9.4 m) long and 16 ft wide. If it were closed, the detour would be 15.5 mi (25 km).

Location

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CarriesKnob Hill Road
CrossesPine Kill
Location3.2 MI NW Westbrookville
CountySullivan County
StateNew York
Coordinates41.54365, -74.57462
Functional classRural 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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span28 ft (8.5 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48 (2017)
Projected traffic67 by 2037
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed15.5 mi (25 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$260,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Knob Hill Road over Pine Kill built?

It was built in 1966, making it 59 years old in 2025.

What condition is Knob Hill Road over Pine Kill 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 October 2023.

How much traffic does Knob Hill Road over Pine Kill carry?

About 48 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Knob Hill Road over Pine Kill?

The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.5 m) and a deck 16 ft wide.

Who owns Knob Hill Road over Pine Kill?

It is owned by the County Highway Agency.