US Bridges

Diamond Notch Rd. over Hollow Tree Brook

Fair

Greene County, New York · 1 MI N Lanesville · Structure no. 000000003201050

Built
1915
110 years old, rebuilt 1994
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
28 ft
1 main span
Daily traffic
18
2021 count
Owner
County
County Highway Agency

About this bridge

Diamond Notch Rd. over Hollow Tree Brook is a steel stringer/multi-beam or girder carrying Diamond Notch Rd. over Hollow Tree Brook in Greene County, New York. It was built in 1915 and reconstructed in 1994, so it is 110 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 18 vehicles a day, roughly 10% of them trucks, projected to reach 25 by 2041. The structure is 28 ft (8.5 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesDiamond Notch Rd.
CrossesHollow Tree Brook
Location1 MI N Lanesville
CountyGreene County
StateNew York
Coordinates42.14193, -74.26478
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating91.1 US tons
Inventory rating63.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 25 or greater
Structure length28 ft (8.5 m)
Longest span27 ft (8.2 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18 (2021)
Projected traffic25 by 2041
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$173,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Diamond Notch Rd. over Hollow Tree Brook built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1994.

What condition is Diamond Notch Rd. over Hollow Tree Brook 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 May 2024.

How much traffic does Diamond Notch Rd. over Hollow Tree Brook carry?

About 18 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Diamond Notch Rd. over Hollow Tree Brook?

The structure is 28 ft (8.5 m) long with a longest span of 27 ft (8.2 m) and a deck 16 ft wide.

Who owns Diamond Notch Rd. over Hollow Tree Brook?

It is owned by the County Highway Agency.