| PROJECT | CO. # | DATE | RAILROAD | POST OFFICE | LOCATION | |
| S-51 | 141 | 5/24/1933 | Westerley | Charlestown | Burlingame (Res.) 9 mi. NW | |
| S-52 | 195 | 6/19/1933 | Washington | Washington | Camp Kent 7 mi. S | |
| S-2 | 1116 | -V | 5/31/1941 | Putnam, CT | Putnum, CT | Washington 8 mi. E |
| P-56 | 1161 | 6/1/1935 | Woonsocket | Woonsocket | Camp Primrose 5 mi. NE | |
| SP-1 | 1186 | 6/18/1935 | Kingston | Westerly | Camp Beach Pond 20 mi. SE | |
| P-55 | 1187 | 6/1/1935 | Greene | Greene | Camp Mt. Vernon 5 mi. E | |
| P-54 | 1188 | 6/30/1935 | Westerley | Hope Valley | Camp Arcadia 3 mi. S |