Page:Walker (1888) The Severn Tunnel.djvu/258

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BIG SPRING SHUT OUT.
155

Progress of the work—1885.

Table showing Rate at which Pressure Rose after Sluices were shut August 11, 1885.
Date Pressure
in lbs.
Date Pressure
in lbs.
Date Pressure
in lbs.
Date Pressure
in lbs.
Aug. 11 nil Aug. 26 39¾ Sept. 14 47½ Oct. 27 54
12 9 28 40 15 47¾ 31 54½
13 12 29 41½ 17 48 Nov. 4 55
14 17 30 42½ 18 48¼ 7 55½
15 18¾ 31 43 20 48¾ 9 56
16 21 Sept. 1 43½ 22 49 Dec. 3 57
17 22½ 2 43¾ 25 49¼ 7 57¼
18 25 3 44½ Oct. 1 49½ 20 57¼
19 27 4 45¼ 4 49¾ 21 30*
20 29¼ 5 45½ 7 50 22 25
21 32½ 6 45¾ 10 50¾ 23 16
22 34¾ 7 46¼ 11 51 29 13
23 36½ 8 46¾ 15 52½ 30 nil†
24 37½ 9 47 17 53 * Valve opened 4″.
25 38½ 13 47¼ 24 53½ † Valve fully opened.
N.B.—Pressure is given in lbs. per square inch.

On 5th September Sir Daniel Gooch, accompanied by Lady Gooch and a party of friends, came with a Great Western engine and passenger train to inspect and pass over the works.

Arriving at Severn Tunnel Junction at 11 o’clock, the train passed through the open cutting and through the tunnel into the open cutting on the Gloucestershire side; returning again to the Monmouthshire open cutting, the train passed over the line laid to bring materials to the works to Sudbrook, where two or three hours were spent pleasantly