Improvements to Forbidden Drive - Project no. 01-NLREEP-C011: cover sheet (CS1); location map (G1); construction sign (G2); location 110 - site improvement plan (C-1); location 113 - site demolition plan (C-2); location 113 - site improvement plan (C-3); location 113 - grading and drainage plan (C-4); location 26 - site improvement plan (C-5); location 80 - site improvement plan (C-6); location 84 - site improvement plan (C-7); location 111 - site improvement plan (C-8); location 63-66 - site improvement plan (C-9); detail sheet 1 (C-10); detail sheet 2 (C-11); detail sheet 3 (C-12); detail sheet 4 (C-13); location 1 - site plan (L1); location 1 - demolition plan (L2); location 1 - layout and dimensioning plan (L3); location 1 - planting plan (L4); paving details (L5); fence and path details (L6); planting details (L7); swale cleaning (L8). [24 sheets], 2001 July 10, Drawer: Wissahickon General, Folder: 7. Wissahickon Valley Park Maps, Plans and Drawings, FP.2011.006. Fairmount Park Historic Resources Archive. https://pprarchives.libraryhost.com/repositories/2/archival_objects/405020 Accessed April 20, 2025.