. 1, '06|
| face | | | | |
| | | | | |
Mixed |Rock bench | 99+19 | 98+44 |Nov. 1. '06|Dec. 29, '06|
| | | | | |
Mixed |Bottom heading | 98+44 | 97+76 |Dec, 29, '06|Feb. 12, '07|
| | | | | |
Mixed |Rock cut | 97+66 | 93+84 |Feb. 12, '07|Aug. 6, '07|
| | | | | |
Rock |Full face | 93+84 | 93+21 |Aug. 6, '07|Sept 2, '07|
| | | | | |
Rock |Center Heading | 93+21 | 92+30 |Sept 2, '07|Oct. 12, '07|
| | | | | |
Rock |Bottom heading | 92+30 | 90+99 |Oct. 12, '07|Dec. 6, '07|
| | | | | |
Mixed |Rock cut | 90+99 | 90+49.6 |Dec. 6, '07|Jan. 3, '08|
--------------+-----------------+---------+---------+------------+------------+

--------------+------+--------+--------+--------------------------------------+
| | |Rate of | |
|Number| |progress| |
| of | Linear |in feet | |
Material. | days.| feet. |per day.| Remarks |
--------------+------+--------+--------+--------------------------------------+
{| 21} | | {| |
{| 11} | | {| |
Rock {| }51| 48 | 0.94 {|Excavation done in normal air and |
{| 4} | | {|before advance of shield. |
{| } | | {| |
{| 15} | | {| |
| | | | |
Rock | 86 | 87 | 1.01 | |
| | | |