County routes in Delaware County, New York, are signed with the Manual on Uniform Traffic Control Devices-standard yellow-on-blue pentagon route marker.
Traditionally, county routes are signed at each end of the road which the county maintains. This means that many county route markers are only placed at village limits, and there are often no signs pointing the way for motorists to find these routes from main streets.
This does not apply to hamlets, however:
Several county routes are "unusual," as they terminate as local roads in remote areas:
CR 19 is unique in that it starts on a town road near the village of Deposit (Dug Road, a former alignment of NY 8), and then downgrades back to a town road at the Broome County line, continuing as Beebe Hill Road in Sanford.
Some county routes in Delaware County have no winter road maintenance (plowing, salting, sanding) at night due to safety concerns regarding the mountainous terrain, especially CR 26 between Downsville and Hamden, and CR7/SR206 between Roscoe and Downsville. The county posts signs on these routes warning motorists that there is no nighttime road maintenance in winter months. Delaware County's highways are very well maintained, some of the better quality county highways in the state. County highways are marked every 0.2 miles (0.32 km) with a small blue marker and yellow numbering with the route number on top and a mileage number on the bottom.
Delaware County DPW is also under contract with New York City to provide road maintenance on the city-owned roads circling the Pepacton and Cannonsville Reservoirs. The road around the Pepacton Reservoir is marked as NYC 30A, and the Cannonsville is marked as NYC 10A.
One road formerly maintained by the county is not included in the route list below: