US Bridges

County Road 67 over Unknown Brook

Fair

Greene County, New York · 1 MI N Hamlet of E Durham · Structure no. 000000003303090

Built
2002
23 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
59 ft
1 main span
Daily traffic
234
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 67 over Unknown Brook is a prestressed concrete box beam or girders - multiple carrying County Road 67 over Unknown Brook in Greene County, New York. It was built in 2002, so it is 23 years old, younger 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 234 vehicles a day, roughly 4% of them trucks, projected to reach 328 by 2041. The structure is 59 ft (18 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCounty Road 67
CrossesUnknown Brook
Location1 MI N Hamlet of E Durham
RouteCounty Highway 0
CountyGreene County
StateNew York
Coordinates42.38599, -74.09031
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
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; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be 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 rating86 US tons
Inventory rating50 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length59 ft (18 m)
Longest span57 ft (17.4 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic234 (2021)
Projected traffic328 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-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$1.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 67 over Unknown Brook built?

It was built in 2002, making it 23 years old in 2025.

What condition is County Road 67 over Unknown 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 County Road 67 over Unknown Brook carry?

About 234 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is County Road 67 over Unknown Brook?

The structure is 59 ft (18 m) long with a longest span of 57 ft (17.4 m) and a deck 27 ft wide.

Who owns County Road 67 over Unknown Brook?

It is owned by the County Highway Agency.