| Highway 18 | ||||
|---|---|---|---|---|
| PRI-1 Expreso Las Américas |
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| Route information | ||||
| Maintained by Puerto Rico Dept. of Transportation and Public Works (DTOP) | ||||
| Major junctions | ||||
| North end: | PRI-2 / PR-22 in San Juan | |||
| South end: | PR-1 in Rio Piedras | |||
| Highway system | ||||
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PR-18 is a freeway in Puerto Rico, which is also known as Expreso Las Américas. It runs from its north end in at its intersection with PR-22 (known as Expreso de Diego) in San Juan to its south end in Río Piedras where it intersects with PR-1. At this point PR-18 becomes PR-52, known as Autopista Luis A. Ferré.
PR-18 connects PR-52 to PR-22 and intersects with PR-17 (Ave. Piñero), PR-23 (Ave. Roosevelt), which grants access to Plaza Las Américas, and Ave. Domenech. It is mostly a 4-lane road in each direction. The combined route of PR-18 and PR-52 is coterminous with the unsigned Interstate Highway PRI-1.
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Main Interstate Highways (major interstates highlighted) |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 5 | 8 | 10 | 12 | 15 | 16 | 17 | 19 | 20 | 22 | 24 | 25 | 26 | 27 | 29 | 30 | |||
| 35 | 37 | 39 | 40 | 43 | 44 | 45 | 49 | 55 | 57 | 59 | 64 | 65 | 66 | 68 | 69 | ||||
| 70 | 71 | 72 | 73 | 74 | 75 | 76 (W) | 76 (E) | 77 | 78 | 79 | 80 | 81 | 82 | ||||||
| 83 | 84 (W) | 84 (E) | 85 | 86 (W) | 86 (E) | 87 | 88 (W) | 88 (E) | 89 | 90 | |||||||||
| 91 | 93 | 94 | 95 | 96 | 97 | 99 | H-1 | H-2 | H-3 | ||||||||||
| Unsigned | A-1 | A-2 | A-3 | A-4 | PRI-1 | PRI-2 | PRI-3 | ||||||||||||
| Lists | Primary | Main - Intrastate - Suffixed - Temporary - Future - Gaps | |||||||||||||||||
| Auxiliary | Main - Future - Unsigned | ||||||||||||||||||
| Other | Standards - Business - Bypassed - Tolled | ||||||||||||||||||