Environmental Document
The Pennsylvania Turnpike Commission's Allegheny Tunnel Transportation Improvement Project Environmental Document was finalized in November 2021. The preferred alternative was identified as the Gray Cut Alternative. The Gray Cut Alternative was selected as the project preferred alternative because as it best balances all the operational, safety, cost, and environmental considerations that are components of the project.
Preliminary Design of the Gray Cut Alternative will commence in early 2023.
| Title | Type | Size | Action |
|---|---|---|---|
| Allegheny Tunnel Environmental Document | 16615 KB | Download | |
| Appendix A | 6493 KB | Download | |
| Appendix B | 7871 KB | Download | |
| Appendix C | 3637 KB | Download | |
| Appendix D | 14733 KB | Download | |
| Appendix E | 14536 KB | Download | |
| Appendix F, Figures F-10A to F10G | 31997 KB | Download | |
| Appendix F, Figures F-1A to F1G | 38910 KB | Download | |
| Appendix F, Figures F-2A to F2G | 38148 KB | Download | |
| Appendix F, Figures F-3A to F3G | 39979 KB | Download | |
| Appendix F, Figures F-4A to F4G | 37724 KB | Download | |
| Appendix F, Figures F-5A to F5G | 38313 KB | Download | |
| Appendix F, Figures F-6A to F6G | 38674 KB | Download | |
| Appendix F, Figures F-7A to F7G | 33800 KB | Download | |
| Appendix F, Figures F-8A to F8G | 33648 KB | Download | |
| Appendix F, Figures F-9A to F9G | 38599 KB | Download | |
| Appendix G, Figure G-1 | 568 KB | Download | |
| Appendix G, Figure G-2 | 1191 KB | Download | |
| Appendix G, Figure G-3 | 3021 KB | Download | |
| Appendix H | 36419 KB | Download | |
| Appendix I | 232 KB | Download | |
| Appendix J | 8510 KB | Download | |
| Appendix K, Table K-1 | 87 KB | Download | |
| Appendix K, Table K-2 | 242 KB | Download | |
| Appendix K, Table K-3 | 106 KB | Download |