Renumbering I-90 and I-87

Interstates 90 and 87 currently have three sets of exit numbers.  This page outlines a plan to renumber each so that both have only one set of exit numbers.  The New York State Thruway Authority numbers the Thruway so that it has its own set of exit numbers and mileposts.  Since the Thruway Authority probably wants to keep it that way this plan does not change that.  For Interstate 87 the numbers start out at I-278 and continue north to the Canadian border.  For I-90 it is more complicated.  For the mainline Thruway portion, the numbers would continue from the I-87 portion of the Thruway.  For the rest of I-90, the numbers would continue backwards from the Thruway.  The numbers are on a distance-based numbering system.

Interstate Section Current Number Proposed Number
Interstate 87 Major Deegan Expressway 1 1A
Interstate 87 Major Deegan Expressway 2 1B
Interstate 87 Major Deegan Expressway 3 1C
Interstate 87 Major Deegan Expressway 4 1D
Interstate 87 Major Deegan Expressway 5 2A
Interstate 87 Major Deegan Expressway 6 2B
Interstate 87 Major Deegan Expressway 7N-S 3A-B
Interstate 87 Major Deegan Expressway 8 4
Interstate 87 Major Deegan Expressway 9 5
Interstate 87 Major Deegan Expressway 10 6
Interstate 87 Major Deegan Expressway 11 7A
Interstate 87 Major Deegan Expressway 12 7B
Interstate 87 Major Deegan Expressway 13 7C
Interstate 87 Major Deegan Expressway 14 8A
Interstate 87 Thruway 1 8B
Interstate 87 Thruway 2 9
Interstate 87 Thruway 3 10A
Interstate 87 Thruway 4N-S 10B-C
Interstate 87 Thruway 5 10D
Interstate 87 Thruway 6E-W 12A-B
Interstate 87 Thruway 6A 13
Interstate 87 Thruway 7 16
Interstate 87 Thruway 7A 18
Interstate 87 Thruway 8 19
Interstate 87 Thruway 9 21
Interstate 87 Thruway 10 25
Interstate 87 Thruway 11 26
Interstate 87 Thruway 12 27
Interstate 87 Thruway 13N-S 29A-B
Interstate 87 Thruway 14 31
Interstate 87 Thruway 14A 32
Interstate 87 Thruway 14B 36
Interstate 87 Thruway 15 38
Interstate 87 Thruway 15A 40
Interstate 87 Thruway 16 53
Interstate 87 Thruway 17 68
Interstate 87 Thruway 18 84
Interstate 87 Thruway 19 99
Interstate 87 Thruway 20 109
Interstate 87 Thruway 21 121
Interstate 87 Thruway 21B 132
Interstate 87 Thruway 21A 142
Interstate 87 Thruway 22 143
Interstate 87 Thruway 23 150
Interstate 87 Thruway 24 156
Interstate 87 Adirondack Northway 1E-W 157A-B
Interstate 87 Adirondack Northway 2E-W 158A-B
Interstate 87 Adirondack Northway 4 160
Interstate 87 Adirondack Northway 5 161
Interstate 87 Adirondack Northway 6 162
Interstate 87 Adirondack Northway 7 163
Interstate 87 Adirondack Northway 8 167
Interstate 87 Adirondack Northway 8A 168
Interstate 87 Adirondack Northway 9E-W 170
Interstate 87 Adirondack Northway 10 173
Interstate 87 Adirondack Northway 11 175
Interstate 87 Adirondack Northway 12 178
Interstate 87 Adirondack Northway 13N-S 181
Interstate 87 Adirondack Northway 14 185
Interstate 87 Adirondack Northway 15 187
Interstate 87 Adirondack Northway 16 193
Interstate 87 Adirondack Northway 17N-S 198
Interstate 87 Adirondack Northway 18 202
Interstate 87 Adirondack Northway 19 204
Interstate 87 Adirondack Northway 20 207
Interstate 87 Adirondack Northway 21 210
Interstate 87 Adirondack Northway 22 212
Interstate 87 Adirondack Northway 23 216
Interstate 87 Adirondack Northway 24 224
Interstate 87 Adirondack Northway 25 230
Interstate 87 Adirondack Northway 26 235
Interstate 87 Adirondack Northway 27 239
Interstate 87 Adirondack Northway 28 245
Interstate 87 Adirondack Northway 29 251
Interstate 87 Adirondack Northway 30 261
Interstate 87 Adirondack Northway 31 174
Interstate 87 Adirondack Northway 32 280
Interstate 87 Adirondack Northway 33 291
Interstate 87 Adirondack Northway 34 295
Interstate 87 Adirondack Northway 35 301
Interstate 87 Adirondack Northway 36 306
Interstate 87 Adirondack Northway 37 309
Interstate 87 Adirondack Northway 38N-S 311
Interstate 87 Adirondack Northway 39E-W 313
Interstate 87 Adirondack Northway 40 316
Interstate 87 Adirondack Northway 41 324
Interstate 87 Adirondack Northway 42 330
Interstate 87 Adirondack Northway 43 332
Interstate 90 Thruway 61 502
Interstate 90 Thruway 60 492
Interstate 90 Thruway 59 475
Interstate 90 Thruway 58 462
Interstate 90 Thruway 57A 452
Interstate 90 Thruway 57 444
Interstate 90 Thruway 56 440
Interstate 90 Thruway 55 437
Interstate 90 Thruway 55 436A-B
Interstate 90 Thruway 54 435
Interstate 90 Thruway 53 433
Interstate 90 Thruway 52A 432
Interstate 90 Thruway 52E-W 430
Interstate 90 Thruway 51E-W 429A-B
Interstate 90 Thruway 50A 428
Interstate 90 Thruway 50 427
Interstate 90 Thruway 49 424
Interstate 90 Thruway 48A 408
Interstate 90 Thruway 48 398
Interstate 90 Thruway 47 386
Interstate 90 Thruway 46 369
Interstate 90 Thruway 45 358
Interstate 90 Thruway 44 354
Interstate 90 Thruway 43 347
Interstate 90 Thruway 42 334
Interstate 90 Thruway 41 327
Interstate 90 Thruway 40 311
Interstate 90 Thruway 39 297
Interstate 90 Thruway 38 293
Interstate 90 Thruway 37 291
Interstate 90 Thruway 36 290
Interstate 90 Thruway 35 286
Interstate 90 Thruway 34A 284
Interstate 90 Thruway 34 269
Interstate 90 Thruway 33 260
Interstate 90 Thruway 32 251
Interstate 90 Thruway 31 240
Interstate 90 Thruway 30 227
Interstate 90 Thruway 29A 218
Interstate 90 Thruway 29 202
Interstate 90 Thruway 28 190
Interstate 90 Thruway 27 181
Interstate 90 Thruway 26 170
Interstate 90 Thruway 25A 166
Interstate 90 Thruway 25 161
Interstate 90 Thruway 24 156
Interstate 90 Albany 1N-S 155B-C
Interstate 90 Albany 2 155A
Interstate 90 Albany 3 154
Interstate 90 Albany 4 153
Interstate 90 Albany 5 152
Interstate 90 Albany 5A 151
Interstate 90 Albany 6 150
Interstate 90 Albany 6A 149
Interstate 90 Albany 7 148
Interstate 90 Albany 8 147
Interstate 90 Albany 9 146
Interstate 90 Albany 10 142
Interstate 90 Albany 11E-W 141
Interstate 90 Albany 12 136
Interstate 90 Thruway B1 135
Interstate 90 Thruway B2 127
Interstate 90 Thruway B3 118
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