Old Number | Southern or western terminus | Northern or eastern terminus | Length, km (mi) | New Number/s | Notes |
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Route 1 | Barrio Playa in Ponce | La Fortaleza in San Juan | 136.7 (84.9) [2] | PR-123, PR-14, PR-1, PR-25 | Carretera Central. Parts of PR-14R, PR-735, PR-798, PR-8834, PR-873 and PR-8838 belong to original segments of this highway. [6] [7] |
Route 2 | Route 6 in Ponce | Route 1 in San Juan | 261.2 (162.3) [2] | PR-132, PR-2, PR-115, PR-23, PR-1, PR-39 | Parts of PR-127, PR-121, PR-102, PR-114, PR-239 (formerly PR-2R), PR-104, PR-439, PR-4439, PR-1107 (formerly PR-111), PR-460, PR-469, PR-112, PR-113, PR-479, PR-484, PR-4491, PR-119, PR-4490, PR-660, PR-681, PR-6681, PR-662, PR-669, PR-670, PR-155, PR-160, PR-676, PR-680, PR-165, PR-8865, PR-864, PR-855, PR-41 and PR-42 belong to original segments of this highway. [8] [9] [10] [11] [12] [13] [14] [15] [16] |
Route 3 | Route 1 in Ponce | Route 1 in San Juan | 199.7 (124.1) [2] | PR-133, PR-1, PR-3 | Parts of PR-578, PR-5507, PR-178, PR-182, PR-9910, PR-979, PR-194, PR-940, PR-193, PR-955, PR-187, PR-187R, PR-958, PR-9958, PR-9959, PR-874, PR-887 and PR-47 belong to original segments of this highway. [17] [15] |
Route 4 | Route 3 in Guayama | Route 1 in Cayey | 26.0 (16.2) [2] | PR-15 | |
Route 5 | Route 22 in Comerío | Route 3 in Humacao | — | PR-156, PR-189, PR-198 | PR-7156 and PR-768 belong to original segments of this highway. |
Route 6 | Route 1 in Ponce | Route 2 in Arecibo | 81.8 (50.8) [2] | PR-123, PR-10 | PR-6609 and PR-6109 belong to an original segment of this highway. |
Route 7 | Route 1 in Caguas | Route 5 in Las Piedras | 22.0 (13.7) [2] | PR-183 | Parts of PR-9931, PR-181 and PR-980 belong to original segments of this highway. |
Route 8 | Route 2 in Aguadilla | Route 6 in Adjuntas | 82.4 (51.2) [2] | PR-111, PR-128, PR-135 | Parts of PR-1107 (formerly PR-111), PR-4443, PR-125, PR-125R, PR-4111 and PR-1111 belong to original segments of this highway. |
Route 9 | Route 15 in Barranquitas | Route 2 in Bayamón | 43.5 (27.0) [2] | PR-156, PR-167 | PR-839 belongs to an original segment of this highway. |
Route 10 | Route 1 in Coamo | Route 2 in Dorado | — | PR-155, PR-568, PR-159, PR-165 | Parts of PR-5155, PR-891 and PR-165R belong to original segments of this highway. [18] [19] [20] |
Route 11 | Route 1 in Juana Díaz | Route 2 in Manatí | 67.4 (41.9) [2] | PR-149 | Parts of PR-570, PR-519, PR-5550, PR-550, PR-589, PR-149R, PR-146 and PR-6685 belong to original segments of this highway. |
Route 12 | Route 3 in Patillas | Route 7 in San Lorenzo | — | PR-181 | Part of PR-183 belongs to an original segment of this highway. |
Route 13 | Route 8 in Lares | Route 2 in Arecibo | 33.6 (20.9) [2] | PR-111, PR-129 | Parts of PR-1111 and PR-134 belong to original segments of this highway. [21] [22] [10] |
Route 14 | Route 35 in Mayagüez | Route 16 in Maricao | — | PR-106, PR-120, PR-105 | |
Route 15 | Route 6 in Adjuntas | Route 1 in Aibonito | 60.6 (37.7) [2] | PR-143, PR-140, PR-144, PR-141, PR-533, PR-157, PR-155, PR-156, PR-162 | The northern part of PR-5155 belongs to an original segment of this highway. This road was briefly interrupted by Route 11 in Ciales. |
Route 16 | Route 2 in Yauco | Route 8 in Lares | 35.4 (22.0) [2] | PR-128 | Parts of PR-375, PR-371 and PR-3372 belong to an original segment of this highway. |
Route 17 | Route 13 in Lares | Route 15 in Jayuya | — | PR-111, PR-140 | PR-6111 belongs to an original segment of this highway. This road was briefly interrupted by Route 6 in Utuado. |
Route 18 | Route 19 in Cabo Rojo | Route 2 in Cabo Rojo | 17.7 (11.0) [2] | PR-307, PR-308, PR-103, PR-102 | |
Route 19 | Barrio Boquerón in Cabo Rojo | Route 39 in Lajas | 10.0 (6.2) [2] | PR-101 | |
Route 20 | Route 11 in Ciales | Route 9 in Naranjito | 38.6 (24.0) [2] | PR-633, PR-155, PR-159, PR-164 | Parts of PR-6633 and PR-149 belong to an original segment of this highway. This road was interrupted by Route 10 into two segments: one from Ciales to western Corozal and the other from eastern Corozal to Naranjito. [23] [19] [24] |
Route 21 | Baños de Coamo in Coamo | Route 1 in Coamo | 4.0 (2.5) [2] | PR-546, PR-153 | |
Route 22 | Route 9 in Comerío | Route 1 in Cidra | 22.5 (14.0) [2] | PR-172, PR-787 | Part of PR-7167, PR-781 and PR-156 belong to an original segment of this highway. |
Route 23 | Route 5 in Gurabo | Route 3 in San Juan | — | PR-181 | PR-943, PR-876 and PR-877 belong to original segments of this highway. |
Route 24 | Route 2 in Bayamón | Barrio Pueblo in Cataño | 7.2 (4.5) [2] | PR-5 | PR-890 belongs to an original segment of this highway. |
Route 25 | Route 1 in Guaynabo | Route 24 in Cataño | 13.6 (8.5) [2] | PR-20, PR-165 | PR-169, PR-19 and PR-24 belong to original segments of this highway. This road was briefly interrupted by Route 2 in San Patricio area. [25] [26] |
Route 26 | Route 17 in Utuado | Route 2 in Barceloneta | — | PR-140 | |
Route 27 | Route 2 in Mayagüez | Route 14 in Maricao | 26.0 (16.2) [2] | PR-105 | |
Route 28 | Route 5 in Juncos | Route 3 in Naguabo | 24.5 (15.2) [2] | PR-31, PR-192 | |
Route 29 | Route 18 in Cabo Rojo | Route 2 in San Germán | 7.4 (4.6) [2] | PR-102, PR-317 | |
Route 30 | Route 20 in Morovis | Route 2 in Vega Baja | 11.2 (7.0) [2] | PR-155 | |
Route 31 | Route 1 in Aibonito | Route 9 in Comerío | — | PR-173, PR-775, PR-740 | Part of PR-727 belongs to an original segment of this highway. |
Route 32 | Route 3 in San Juan | Route 1 in San Juan | — | PR-27, PR-36 | |
Route 33 | Route 13 in Hatillo | Route 2 in Hatillo | — | PR-130 | |
Route 34 | Route 8 in San Sebastián | Route 2 in Camuy | — | PR-119 | |
Route 35 | Route 2 in Mayagüez | Route 8 in San Sebastián | 41.8 (26.0) [2] | PR-106, PR-119 | Formerly portion of Route 13 [27] [28] [29] |
Route 36 | Route 2 in Guayanilla | Route 2 in Ponce | 23.9 (14.9) [2] | PR-127, PR-2, PR-2R | PR-591 and PR-5549 belong to original segments of this highway. |
Route 37 | Route 18 in Cabo Rojo | Route 2 in Mayagüez | — | PR-102 | |
Route 38 | Route 69 in Vieques | Barrio Puerto Diablo in Vieques | — | PR-200 | |
Route 39 | Route 2 in San Germán | Route 2 in Yauco | 33.0 (20.5) [2] | PR-101, PR-116 | PR-320, PR-315, PR-3116, PR-4116 and PR-326 (formerly PR-116R) belong to original segments of this highway. [30] [31] [32] [33] |
Route 40 | Route 2 in Añasco | Route 8 in San Sebastián | — | PR-109 | |
Route 41 | Route 1 in San Juan | Route 1 in San Juan | 6.5 (4.0) [2] | PR-35 | Part of PR-1 and PR-16 belong to an original segment of this highway. |
Route 42 | Route 10 in Toa Alta | Route 9 in Bayamón | 11.2 (7.0) [2] | PR-861 | |
Route 43 | Route 5 in Juncos | Route 3 in Canóvanas | — | PR-185 | PR-952 belongs to an original segment of this highway. |
Route 44 | Route 3 in Canóvanas | Route 3 in Río Grande | — | PR-951, PR-187 | |
Route 45 | Route 46 in San Juan | Route 2 in San Juan | — | PR-18, PR-41 | |
Route 46 | Route 25 in San Juan | Route 1 in San Juan | 5.0 (3.1) [2] | PR-21 | |
Route 47 | Route 3 in Salinas | Route 1 in Cayey | — | PR-1, PR-170 | |
Route 48 | Route 47 in Aibonito | Route 1 in Aibonito | — | PR-162 | |
Route 49 | Route 1 in Cayey | Route 22 in Cidra | — | PR-171 | PR-7731 belongs to an original segment of this highway. |
Route 50 | Route 2 in Mayagüez | Route 2 in San Germán | — | PR-348, PR-119 | Parts of PR-2, PR-360 and PR-347 belong to an original segment of this highway. [30] |
Route 51 | Route 1 in Ponce | Route 15 in Jayuya | — | PR-139, PR-143 | PR-139R belongs to an original segment of this highway. |
Route 52 | Route 2 in Toa Baja | Playa de Sardinera in Dorado | — | PR-165, PR-6165, PR-693, PR-697 | PR-854 belongs to an original segment of this highway. |
Route 53 | Route 2 in Dorado | Route 52 in Dorado | — | PR-693 | |
Route 54 | Route 20 in Morovis | Route 2 in Vega Baja | — | PR-160 | |
Route 55 | Route 2 in Arecibo | Route 96 in Barceloneta | — | PR-681 |
Route 56 | Route 39 in Lajas | Route 2 in Sabana Grande | — | PR-117 | |
Route 57 | Route 3 in Carolina | Route 1 in San Juan | — | PR-26 | Parts of PR-8887, PR-190 and PR-37 belong to original segments of this highway. [34] [16] |
Route 58 | Route 43 in Carolina | Route 3 in Carolina | — | PR-853 | |
Route 60 | Route 3 in Ceiba | Barrio Machos in Ceiba | — | Formerly PR-980 | Roosevelt Roads Naval Station [35] |
Route 61 | Route 3 in Juana Díaz | Route 1 in Juana Díaz | 6.6 (4.1) [2] | PR-149 | PR-592 belongs to an original segment of this highway. [36] |
Route 62 | Route 4 in Guayama | Route 1 in Cidra | — | PR-179, PR-184 | PR-7736 belongs to an original segment of this highway. |
Route 63 | Route 5 in Aguas Buenas | Route 2 in Bayamón | — | PR-174 | Part of PR-5 belongs to an original segment of this highway. |
Route 64 | Route 8 in Adjuntas | Route 13 in Lares | — | PR-129 | |
Route 65 | Route 11 in Villalba | Route 10 in Orocovis | — | PR-150, PR-151, PR-143 | |
Route 67 | Route 23 in Trujillo Alto | Route 23 in Trujillo Alto | — | PR-175, PR-846 | |
Route 68 | Route 34 in Camuy | Route 2 in Quebradillas | — | PR-113 | |
Route 69 | Route 38 in Vieques | Route 38 in Vieques | — | PR-201 | |
Route 70 | Barrio Punta Arenas in Vieques | Route 38 in Vieques | — | PR-200 | |
Route 73 | Route 2 in Añasco | Route 40 in Añasco | — | PR-402 | |
Route 75 | Route 11 in Manatí | Route 30 in Vega Baja | — | PR-643 | |
Route 77 | Route 3 in Santa Isabel | Route 21 in Coamo | — | PR-153 | |
Route 78 | Route 2 in Hormigueros | Route 50 in Mayagüez | — | PR-309, PR-344 | |
Route 80 | Route 2 in Peñuelas | Route 8 in Adjuntas | — | PR-386, PR-131 | This road was interrupted between Peñuelas and Adjuntas. |
Route 81 | Route 2 in Sabana Grande | Route 27 in Maricao | — | PR-120 | |
Route 82 | Route 2 in Hormigueros | Route 2 in Hormigueros | — | PR-319, PR-309, PR-343 | |
Route 85 | Route 35 in Mayagüez | Route 40 in Añasco | — | PR-108 | |
Route 92 | Route 35 in Las Marías | Barrio Buena Vista in Las Marías | — | PR-124, PR-370 | |
Route 93 | Route 92 in Las Marías | Route 8 in Lares | — | PR-124 | |
Route 96 | Route 2 in Barceloneta | Route 2 in Barceloneta | — | PR-140 | PR-6140 belongs to an original segment of this highway. |
Route 98 | Cerro Maravilla in Ponce | Route 11 in Orocovis | — | PR-577, PR-143 | |
Route 100 | Route 15 in Orocovis | Route 20 in Morovis | — | PR-155 | |
Route 102 | Route 10 in Orocovis | Route 15 in Barranquitas | — | PR-143, PR-720 | |
Route 103 | Route 11 in Villalba | Route 10 in Coamo | — | PR-150 | |
Route 104 | Route 77 in Coamo | Route 47 in Salinas | — | PR-154 | |
Route 107 | Route 31 in Cidra | Route 22 in Cidra | — | PR-173 | |
Route 109 | Route 5 in Aguas Buenas | Route 1 in Guaynabo | — | PR-173 | |
Route 110 | Route 1 in Caguas | Route 67 in Trujillo Alto | — | PR-175 | |
Route 111 | Route 7 in San Lorenzo | Route 5 in Gurabo | — | PR-181 | |
Route 112 | Route 28 in Naguabo | Route 3 in Río Grande | — | PR-191 | El Yunque National Forest [37] [38] |