Line A, Manhattan.
| Material. | Method. | Station: | Date: | Number of days. | Linear Feet. | Rate of progress in feet per day. | Remarks. | ||||||
| From | To | From | To | ||||||||||
| Rock | ⎧ ⎨ ⎩ | Top heading Top lift of bench Bottom lift of bench | 108+43 108+43 108+43 | 107+74 107+74 107+74 | July 20, '05 Aug. 8, '05 Aug. 30, '05 | Aug. 3, '05 Aug. 23, '05 Sept 27, '05 | 14 15 28 | ⎫ ⎬ ⎭ | 57 | 69 | 1.21 | ⎧ ⎨ ⎩ | Excavation in normal air, and before advance of shield. |
| Rock | ⎧ ⎨ ⎩ | Bottom heading Bottom heading | 107+74 107+74 | 107+21 107+21 | Sept 27, '05 Nov. 30, '05 | Oct. 23, '05 Dec. 29, '05 | 26 29 | ⎫ ⎬ ⎭ | 55 | 53 | 0.96 | ⎧ ⎨ ⎩ | Bottom heading timbered to avoid the possibility of a break. |
| Mixed | Bottom heading | 107+21 | 106+99 | Oct. 26, '06 | Nov. 20, '06 | 25 | 22 | 0.88 | Bottom heading timbered. | ||||
| Mixed | Rock bench | 106+99 | 106+34 | Nov. 20, '06 | Jan. 13, '07 | 54 | 65 | 1.20 | |||||
| Earth | Poling and breasting | 106+34 | 99+11 | Jan. 13, '07 | Apr. 17, '07 | 94 | 723 | 7.69 | |||||
| Mixed | Rock cut | 99+11 | 93+96 | Apr. 17, '07 | Oct. 24, '07 | 190 | 515 | 2.71 | |||||
| Rock | Bottom heading | 93+96 | 93+58 | Oct. 24, '07 | Nov. 14, '07 | 21 | 38 | 1.81 | |||||
| Rock | Center heading | 93+58 | 92+42 | Nov. 14, '07 | Dec. 27, '07 | 46 | 116 | 2.52 | |||||
| Rock | Bottom heading | 92+42 | 91+05 | Dec. 27, '07 | Feb. 24, '08 | 59 | 137 | 2.32 | |||||
| Mixed | Rock cut | 91+05 | 90+57 | Feb. 24, '08 | Mar. 20, '08 | 25 | 48 | 1.92 | |||||