List of reference routes in New York
A reference route is an unsigned highway assigned by the New York State Department of Transportation to roads that possess a signed name, that NYSDOT has determined are too minor to have a signed touring route number, or are former touring routes that are still state-maintained. The majority of reference routes are owned by the state of New York and maintained by NYSDOT; however, some exceptions exist. The reference route designations are normally posted on reference markers, small green signs located every tenth-mile on the side of the road, though a few exceptions exist to this practice as well. These designations are not signed like other highways on normal reassurance marker road signs for drivers to see clearly, with four exceptions.
Reference route numbers are always three digit numbers in the 900s with a single alphabetic suffix. The designations are largely assigned in numerical and alphabetical order within a region, and designations are not reused once they are removed. Certain letters are avoided, such as "I", "N", "O", "R", "S", "X", "Y", and "Z". "Q" and "U" are not currently being assigned due to confusion in the past. Designations are assigned as follows:
- The first digit is 9, distinguishing the number as a reference route designation.
- The second digit corresponds to the NYSDOT region number the route is in, with regions 10 and 11 using the digit 0.
- The third digit is 6 for collector/distributor roads along limited access highways, 7–9 for parkways, and 0–5 for all other roads.
Region 1
NYSDOT Region 1 primarily covers the Capital District, Saratoga–Champlain and Upper Hudson Valley areas. The counties comprising this region are Albany, Essex, Greene, Rensselaer, Saratoga, Schenectady, Warren, and Washington.| Route | Length | Length | From | Via | To | Notes |
| 910A | NY 32 | Feura Bush and Glenmont roads in Bethlehem | NY 144 | Former routing of NY 32 | - | |
| 910B | NY 5 | Wolf Road in Colonie | Albany CR 151, To NY 155/Albany International Airport, and I-87 exits 3&4 | - | ||
| 910C | Albany city line | Broadway in Menands | NY 32 | Former routing of NY 32 | - | |
| 910D | NY 155 in Albany | Washington Avenue Extension | I-90 eastbound Exit 2 in Albany | Extended from Fuller Road when that intersection was rebuilt as an interchange | - | |
| 910E | NY 85 / NY 140 | New Scotland Road in Bethlehem | Albany city line | Former number; still shown in the 2017 route log; former routing of NY 85 | - | |
| 910F | US 20 in Guilderland | Fuller Road Alternate | I-87 / I-90 in Albany | - | ||
| 910G | Albany CR 354 / CR 362 | Potter Hollow Road in Rensselaerville | NY 81 at NY 145 | - | ||
| 910H | NY 143 | Beckman Road in Westerlo | NY 32 | Former number | - | |
| 910J | NY 443 | Thacher Park Road in Berne | NY 157A | - | ||
| 910K | I-87 exit 29 | Blue Ridge Road in North Hudson | US 9 | - | ||
| 910L | NY 9N / NY 22 | Bridge Road in Crown Point | Crown Point Bridge at Vermont state line | Former number; formerly NY 903; now NY 185 | - | |
| 910M | John Brown's Grave | John Brown Road in North Elba | NY 73 | - | ||
| 910P | US 9W | US 9W north ramps in Catskill | NY 23 | - | ||
| 910U | NY 385 | Mansion Street Extension in Coxsackie | US 9W | Former routing of US 9W | - | |
| 911E | NY 32 | Lower Warren Street in Queensbury | NY 254 | - | ||
| 911F | Nott Street in Schenectady | Erie Boulevard and Freemans Bridge Road | NY 50 in Glenville | - | ||
| 911G | NY 146 / NY 914T | Union Street in Niskayuna | NY 7 | Formerly NY 950; former routing of NY 7 | - | |
| 911H | NY 7 | Altamont Avenue in Rotterdam | Schenectady city line | Formerly NY 951; former routing of NY 7 | - | |
| 911P | I-87 exit 8 | Crescent Road in Halfmoon | US 9 | Formerly NY 819; previously NY 819 went from CR 47 in Rome via Rabbitt and Old Floyd roads to NY 365 in Floyd | - | |
| 911T | Pierce Road | Ushers Road in Clifton Park | US 9 | Formerly NY 822 | - | |
| 911U | I-87 exit 11 in Malta | Round Lake Road | US 9 in Round Lake | Former number; Formerly NY 823 | - | |
| 911V | Austin Acres Road | Mohican Trail in Catskill | I-87 / Thruway exit 21 | Continues in both directions as Greene CR 23B | - | |
| 912C | NY 156 | Main Street in Altamont | NY 146 | - | ||
| 912E | NY 85A | Wye connection in New Scotland | NY 155 | Eliminated due to construction of a roundabout | - | |
| 912F | US 9 / US 20 | Miller Road in Schodack | Reno Road | Serves I-90 exit 10 | - | |
| 912G | US 20 | Grand Street in Albany | Market Street | - | ||
| 912M | I-87 / Thruway in Coeymans | Berkshire Connector | I-90 in Schodack | Maintained by the New York State Thruway Authority | - | |
| 912Q | I-87 exit 22 | Ramp connection in Lake George | NY 9N | Connects I-87 with US 9 and NY 9N | - | |
| 912S | US 9W | Ramp connection in Albany | I-787 exit 1 | - | ||
| 912T | NY 373 | Wye connection in Chesterfield | US 9 | - | ||
| 912V | NY 146 | Wye connection in Clifton Park | NY 146A | Eliminated in 2019 due to construction of a roundabout | - | |
| 912W | NY 337 at I-890 exit 2 | Rice Road in Rotterdam | I-890 exit 4 | Former extension of NY 5S | - | |
| 913B | NY 85 | Wye connection in Westerlo | NY 143 | - | ||
| 913C | NY 157 | Wye connection in New Scotland | NY 85 | - | ||
| 913D | NY 157 | Wye connection in Berne | NY 157A | - | ||
| 913E | NY 156 | Wye connection in Knox | NY 157 | - | ||
| 913G | NY 7 at I-890 exit 9 | Curry Road in Guilderland | East of I-890 | - | ||
| 913H | US 9W / NY 32 | Wye connection in Bethlehem | NY 32 | - | ||
| 913J | NY 32 | Wye connection in Bethlehem | US 9W | - | ||
| 913M | NY 30 | Wye connection in Duanesburg | NY 159 | - | ||
| 913P | NY 9P | Wye connection in Stillwater | NY 423 | Wye replaced by T-intersection before March 2022 | - | |
| 913Q | Mount Van Hoevenberg | Bobsled Run Road in North Elba | NY 73 | - | ||
| 913T | NY 32 | Ramp connection in Menands | I-787 exit 6 | - | ||
| 913V | Empire State Plaza | South Mall Arterial in Albany | US 20 | - | ||
| 914A | NY 22 | Moses Road and Main Street in Petersburg | NY 2 | Two connecting roads; former routing of NY 2 | - | |
| 914B | NY 337 at I-890 exit 2 | Campbell Road Extension in Rotterdam | Old Rice Road | - | ||
| 914C | Washington Avenue | Ring Road ramps in Albany | Washington Avenue | Former number; still shown in the 2017 route log. | - | |
| 914D | NY 915D at I-890 exit 5 | Broadway in Schenectady | Millard Street and Edison Avenue | - | ||
| 914E | Millard Street | Veeder Avenue in Schenectady | NY 5 | - | ||
| 914F | US 20 | Wye connection in Nassau | NY 66 | - | ||
| 914H | I-787/NY 7 | SH 69-6 | Arch Street | Former number; now NY 787 | ||
| 914T | NY 5 | Balltown Road in Niskayuna | NY 146 / NY 911G | Reference markers show NY 546 | - | |
| 914V | NY 50 in Glenville | Glenridge Road | NY 146 in Clifton Park | - | ||
| 915B | Hudson Avenue in Green Island | Green Island Bridge | US 4 in Troy | - | ||
| 915C | US 4 / NY 32 in Stillwater | Stillwater Bridge | Rensselaer CR 125 at Canal Road in Schaghticoke | Former routing of NY 67 | - | |
| 915D | NY 914D at I-890 exit 5 | Broadway in Schenectady | Weaver Street | - | ||
| 915E | NY 151 | 3rd Avenue Extension in East Greenbush | US 4 | Former routing of NY 43 | - | |
| 915F | I-87 exit 27 | Vanderwalker Road in Schroon | US 9 | - | ||
| 915G | NY 7 | Bennington Bypass in Hoosick | Vermont state line | - | ||
| 915H | I-87 | New York State Thruway in Albany | I-90 | Maintained by the New York State Thruway Authority | - | |
| 915J | NY 911U near I-87 exit 11 in Malta | Round Lake Bypass | US 9 / NY 67 in Round Lake | Opened 2009 | - | |
| 915K | US 9 / NY 22 | Connector highway in Chesterfield | I-87 exit 33 | Assigned between 2007 and 2009 | - | |
| 915L | NY 85 | Maher Road in Bethlehem | NY 910E | Former number; assigned between 2009 and 2012; still shown in the 2017 route log; former routing of NY 85 | - | |
| 915M | Schenectady CR 69 at Tower Avenue | Chrisler Avenue in Rotterdam | I-890 / NY 7 | Assigned between 2009 and 2012 | - | |
| 915P | I-87 in Warrensburg | I-87 exit 24 | Warren CR 10 in Warrensburg | - | ||
| 915Q | US 20 | SH 78-3 in Duanesburg | NY 7 | I-88 exit 24 connection | ||
| 917A | US 9 | Prospect Mountain Veterans Memorial Highway in Lake George | Prospect Mountain | Maintained by the New York State Department of Environmental Conservation | - |