US Bridges

Plank Road-Sect a over Black Brook

Fair

Sullivan County, New York · 1.1 MI SW of Forestburg · Structure no. 000000003356590

Built
1934
91 years old, rebuilt 1968
Condition
Fair
inspected March 2023
Type
Slab
Wood or Timber
Length
34 ft
1 main span
Daily traffic
59
2018 count
Owner
County
County Highway Agency

About this bridge

Plank Road-Sect a over Black Brook is a wood or timber slab carrying Plank Road-Sect a over Black Brook in Sullivan County, New York. It was built in 1934 and reconstructed in 1968, so it is 91 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 5 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 59 vehicles a day, roughly 4% of them trucks, projected to reach 83 by 2038. The structure is 34 ft (10.4 m) long and 19 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesPlank Road-Sect a
CrossesBlack Brook
Location1.1 MI SW of Forestburg
CountySullivan County
StateNew York
Coordinates41.53671, -74.76062
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating55 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckNot applicable
Main spans1
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span31 ft (9.4 m)
Deck width19 ft (5.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59 (2018)
Projected traffic83 by 2038
Trucks4%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$466,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Plank Road-Sect a over Black Brook built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1968.

What condition is Plank Road-Sect a over Black 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 March 2023.

How much traffic does Plank Road-Sect a over Black Brook carry?

About 59 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is Plank Road-Sect a over Black Brook?

The structure is 34 ft (10.4 m) long with a longest span of 31 ft (9.4 m) and a deck 19 ft wide.

Who owns Plank Road-Sect a over Black Brook?

It is owned by the County Highway Agency.