APPENDIX No. 7. Vol. ii. p. 433.

MERSEY DOCKS AND HARBOUR BOARD.

Tabular Statement, showing the Water Area, Quay Space, Width of Entrance, and Depth of Sill for each of the Liverpool and Birkenhead Docks, with particulars of the Graving Docks, Open Basins, Landing Stages, and Gridirons.

January, 1872.

The Old Dock Sill is the Datum to which all Levels refer, and is preserved on a Tide Gauge at the West side of the Centre Pier of the Entrances to the Canning Half-Tide Dock.

The Old Dock contained an Area of 3 acres 1890 yards, and 557 lineal yards of Quay Space.

Its Passage contained an Area of 3 acres 675 yards, and 90 lineal yards of Quay Space.

LIVERPOOL DOCKS.
Liverpool Docks.	Position and Width of Entrance or Passage.			Sill below Datum.		Coping at Hollow Quoins above Dtm.		Water Area.		Lineal Quayage.
		Ft.	In.	Ft.	In.	Ft.	In.	Ac.	Yds.	Miles	Yds.
North Carrier’s Dock	West	40	0	6	0	27	0	2	3423	0	641
South Carrier’s Dock	West	40	0	6	0	27	0	1	4515	0	615
Canada Half-Tide Dock	West	60	0	7	9	28	0	11	1010	0	1002
Canada Half-Tide Dock	South	80	0	7	9	28	0	..		..
Canada Half-Tide Dock (Lock 110 feet long)	N. West	32	0	6	0	28	0	..		..
Canada Half-Tide Dock	S. West	20	0	6	0	28	0	..		..
Canada Lock (498 ft. long)		100	0	7	9	28	0	1	3479	0	487
Canada Dock	S. East	50	0	6	6	29	0	17	4043	0	1272
Canada Dock	S. West	80	0	6	6	29	0	..		..
Huskisson Dock	..	..		..		..		14	3451	0	1039
Huskisson Branch Dock.	..	..		..		..		7	592	0	910
Huskisson Lock (338 ft. long)	East	80	0	6	6	38	0	0	4682	0	342
Huskisson Lock (338 ft. long)	West	45	0	6	0	26	0	0	3650	0	330
Sandon Dock	West	70	0	6	6	30	11	10	100	0	867
Wellington Half-Tide Dock.	East	70	0	6	9	30	9	3	813	0	400
Wellington Half-Tide Dock.	West	50	0	6	6	28	0	..		..
Wellington Dock	West	70	0	6	6	31	0	7	4120	0	820
Bramley-Moore Dock	North	60	0	6	0	26	0	9	3106	0	935
Bramley-Moore Dock	South	60	0	6	0	26	0	..		..
Nelson Dock	South	60	0	6	6	26	0	7	4786	0	803
Stanley Dock	West	51	0	5	8	29	0	7	120	0	753
Stanley Dock	Canal	18	0	2	6	29	0	..		..
Canal Basin, let to Bridgewater Trust	West	18	0	O.D.S.		26	0	0	920	0	110
Collingwood Dock	West	60	0	6	9	26	0	5	244	0	553
Collingwood Dock	Canal	18	0	2	6	26	0	..		..
Salisbury Dock	West North	60	0	6	11	26	0	3	2146	0	406
Salisbury Dock	West South	50	0	6	11	26	6	..		..
Salisbury Dock	West Lock	18	0	2	6	26	0	..		..
Clarence Graving Dock Basin	North	45	0	4	9	26	0	1	1056	0	291
Clarence Graving Dock Basin	South	45	0	4	6	26	6	..		..
Clarence Half-Tide Dock	West	50	0	5	0	26	8	4	1794	0	635
Clarence Dock	West	47	0	3	2	26	0	6	273	0	914
Trafalgar Lock	North	45	0	6	7	23	10	0	2937	0	256
Trafalgar Dock	North	45	0	6	7	21	11	5	4546	0	764
Victoria Dock	North	45	0	4	11	21	11	5	3559	0	755
Victoria Dock	South	50	0	6	6	26	0	..		..
Waterloo Dock	South	60	0	8	0	22	1	3	2146	0	533
Corn Warehouse Dock	South	60	0	8	0	22	1	2	3375	0	506
Half-Tide Dock to Corn Warehouse Dock	West North	65	0	8	0	31	0	4	3250	0	429
Half-Tide Lock (110 ft. long)	West Middle	32	0	8	0	31	0	..		..
Half-Tide Lock	West South	65	0	8	0	31	0	..		..
Prince’s Dock	North	45	0	5	11	27	5	11	1490	0	1178
George’s Dock	..	..		..		..		5	154	0	645
George’s Dock Passage	South	40	3	4	6	24	5	0	2439	0	356
				Sill above Datum
Manchester Dock	{ West	32	10	0	3	23	3	1	595	0	339
	{			Sill below Datum
Manchester Lock (86 ft. long)	West	33	8	3	9	24	3	0	315	0	57
Canning Dock	West	45	0	6	1	26	2	4	376	0	585
Canning Half-Tide Dock	West North	45	0	6	3	28	3	2	2688	0	429
Canning Half-Tide Dock	West South	45	0	6	3	28	3	..		..
Albert Dock	North	45	0	6	4	26	0	7	3542	0	885
Albert Dock	East	45	0	6	0	26	0	..		..
Salthouse Dock	North	45	0	6	0	26	0	6	2019	0	784
Wapping Basin	North	50	0	6	0	26	0	1	3151	0	454
Wapping Basin	South	50	0	6	0	26	0	..		..
Wapping Basin	West	40	0	6	0	25	0	..		..
Wapping Dock	West	50	0	6	0	26	0	5	499	0	815
Wapping Dock	South	50	0	6	0	26	0	..		..
King’s Dock	South	42	0	5	0	26	1	7	3896	0	875
Queen’s Half-Tide Dock	West North	70	0	6	9	31	0	3	3542	0	445
Queen’s Half-Tide Dock	West South	50	0	6	9	31	0	..		..
Queen’s Dock	West	50	0	6	0	26	0	10	1564	0	1214
Queen’s Dock	South	60	0	6	6	28	9	..		..
Coburg Dock	West	70	0	6	0	30	6	8	26	0	1053
Brunswick Dock	North	60	0	6	6	27	0	12	3010	0	1086
Brunswick Dock.	West	42	0	5	6	26	0	..		..
Brunswick Half-Tide Dock	West	45	0	6	0	26	6	1	3388	0	491
Toxteth Dock	West	40	0	5	0	26	0	1	469	0	393
Harrington Dock	West	29	9	1	2	23	1	0	3740	0	315
Herculaneum Half-Tide Dock	North	80	0	8	0	31	0	3	3000	0	416
Herculaneum Half-Tide Dock	South	60	0	8	0	31	0	..		..
Total Water Area and Quay Space of the Liverpool Docks								243	1559	17	263

LIVERPOOL BASINS.
Liverpool Basins.	Width of Entrance.		Height of Piers above Datum.		Water Area.		Lineal Quayage.
	Ft.	In.	Ft.	In.	Acres	Yds.	Miles	Yds.
Canada Basin	250	0	32	0	6	4528	0	546
Sandon Basin	200	0	31	0	6	904	0	702
George’s Ferry Basin	67	0	23	8	0	1344	0	160
Chester Basin	36	0	22	2	0	2568	0	288
South Ferry Basin	60	0	30	6	0	2927	0	205
Harrington Basin	40	0	23	3	0	3917	0	308
Herculaneum Basin	40	0	26	0	0	2200	0	204
Total Water Area and Quay Space of the Liverpool Basins					15	3868	1	653
Total Water Area and Quay Space of the Liverpool Docks					243	1559	17	263
Total					259	587	18	916

AREA OF THE DOCK ESTATE.
Liverpool		1,032 Acres.
Birkenhead		506 Acres.
	Total	1,538 Acres.

BIRKENHEAD DOCKS.
Birkenhead Docks.	Position and Width of Entrance or Passage.			Sill below Datum.		Coping at Hollow Quoins abv. Dtm.		Water Area.		Lineal Quayage.
		Ft.	In.	Ft.	In.	Ft.	In.	Ac.	Yds.	Miles	Yds.
WEST FLOAT	..	..		..		..		52	19	2	210
Basin near Canada Works	West	50	0	..		..		1	2554	0	543
Basin near Canada Works	East	50	0	..		..		1	84	0	390
Duke Street Passage		100	0	7	6	26	6	..		..
EAST FLOAT	..	..		..		..		59	3786	1	1506
Corn Warehouse Dock		30	0	O.D.S.		26	0	1	453	0	555
Railway Companies’ Basin	..	..		..		..		0	606	0	113
Lock from Low-Water Basin 238 feet long		50	0	..		26	0	0	1333	0	234
Inner Sill	..	..		9	0	..		..		..
Outer Sills	..	..		12	0	..		..		..
Inner Northern Entrances	North	100	0	9	0	26	0	..		0	242
Lock 198 feet long	Middle	30	0	..		26	0	0	667	0	264
Inner Sill	..	..		9	0	..		..		..
Outer Sills	..	..		12	0	..		..		..
Lock 274 feet long	South	50	0	..		26	0	0	522	0	300
Inner Sill	..	..		9	0	..		..		..
Outer Sills	..	..		12	0	..		..		..
Alfred Dock	..	..		..		..		8	2922	0	482
Outer Northern Entrances
Lock 348 feet long	North	100	0	12	0	31	0	0	3888	0	352
Lock 198 feet long	Middle	30	0	12	0	26	0	0	667	0	377
Lock 398 feet long	South	50	0	12	0	26	0	0	2222	0	391
Egerton Dock	West	70	0	7	4	25	0	3	4011	0	754
Morpeth Dock	West	70	0	5	5	25	0	11	2404	0	1299
Railway Companies’ Basin	South	25	0	O.D.S.		26	0	0	3144	0	319
Morpeth Branch Dock	West	85	0	..		26	0	4	243	0	637
Morpeth Lock 398 feet long	River	85	0	12	0	26	0	0	3777	0	441
Total Water Area and Quay Space of the Birkenhead Docks								147	722	8	609

BIRKENHEAD BASINS.
Birkenhead Basins.	Width of Entrance.		Height of Piers above Datum.		Water Area.		Lineal Quayage.
	Ft.	In.	Ft.	In.	Acres	Yds.	Miles	Yds.
Low-Water Basin	300	0	26	0	14	0	0	1360
North Basin	500	0	31	0	4	2843		689
Total Water Area and Quay Space of the Birkenhead Basins					18	2843	1	269
Total Water Area and Quay Space of the Birkenhead Docks					147	722	8	609
Total					165	3565	9	878

TOTAL AREA OF THE LIVERPOOL AND BIRKENHEAD DOCKS AND BASINS.
	Acres	Yds.	Miles	Yds.
Total Water Area and Quay Space of the Liverpool Docks and Basins	259	587	18	916
Total Water Area and Quay Space of the Birkenhead Docks and Basins	165	3565	9	878
Total	424	4152	28	34

LEVELS OF TIDES AT LIVERPOOL. Derived from the Record of the Self-Registering Gauge at George’s Pier deduced from Ten Years’ Observations, 1854 to 1863. Datum Old Dock Sill.
	Ft.	In.
An extraordinary High Tide, as marked on the Leasowe Lighthouse	25	0	Above Datum.
An extraordinary High Tide, 20 January, 1863	23	9	”
Average High-Water Mark of Equinoctial Spring Tides.	21	1	”
Average High Water of Spring Tides, including Equinoctial Tides	19	0½	”
Average High-Water Mark of Ordinary Spring Tides, excluding the Equinoctial Tides	18	10	”
Mean High-Water Level	15	6	”
Highest High-Water Mark of Neap Tides	14	8	”
Average High-Water Mark of Ordinary Neap Tides	11	7	”
Lowest High-Water Mark of Neap Tides	8	7	”
Mean Tide Level (Ordnance Datum)	5	0	”
Highest Low-Water Mark of Neap Tides	4	1	”
Average Low-Water Mark of Ordinary Neap Tides	1	5	Below Datum.
Lowest Low-Water Mark of Neap Tides	3	10	”
Mean Low-Water Level	5	6	”
Average Low-Water Mark of Ordinary Spring Tides, exclusive of Equinoctial Tides	8	8	”
Average Low-Water Mark of Spring Tides, inclusive of Equinoctial Tides	8	10	”
Lowest Low-Water Mark of Equinoctial Spring Tides	10	4	”

LIVERPOOL GRAVING DOCKS.
Liverpool Graving Docks.		Position and Width of Entrance.			Sill below Datum.		Coping at Hollow Quoins abv. Dtm.		Length of Floor.		Total Length of Floor.
			Ft.	In.	Ft.	In.	Ft.	In.	Ft.	In.	Ft.	In.
Canada Lock as a Graving Dock			100	0	7	9	28	0	..		588	0
Huskisson Lock as a Graving Dock			80	0	6	6	38	0	..		395	0
Sandon Graving Docks,	No. 1	East	60	0	3	6	26	0	565	0
	No. 2	East	70	0	3	6	26	0	565	0
	No. 3	East	60	0	3	6	26	0	565	0
	No. 4	East	70	0	3	6	26	0	565	0
	No. 5	East	45	0	3	6	26	0	565	0
	No. 6	West	45	0	3	6	26	0	565	0
											3390	0
Clarence Graving Docks,	No. 1	N. Outer	45	0	3	0	26	6	451	0
		N. Inner	45	0	0	6	18	0	289	0
	No. 2	S. Outer	45	0	3	0	26	6	454	0
		S. Inner	32	0	0	6	18	0	286	0
					Sill above Datum.						1480	0
Canning Graving Docks,	No. 1	North	35	9	1	8½	23	3	436	0
					Sill below Datum.
	No. 2	South	35	9	0	0½	23	3½	482	0
											918	0
Queen’s Graving Docks,	No. 1	East	42	0	1	8¼	27	7¾	465	0
	No. 2	West	70	0	3	6	27	5	467	0
											932	0
Brunswick Graving Dks.	No. 1	East	41	0	2	6	26	6	460	0
	No. 2	West	41	6	2	6	26	6	462	0
											922	0
Herculaneum Grvg. Dks.	No. 1	West	60	0	4	0	26	0	758	6
	No. 2	East	60	0	4	0	26	0	753	0
											1511	6
Total Length of Floor of the Liverpool Graving Docks											10136	6

BIRKENHEAD GRAVING DOCKS.
Birkenhead Graving Docks.		Position and Width of Entrance.			Sill under Datum.		Coping at Hollow Quoins abv. Dtm.		Length of Floor.		Total Length of Floor.
			Ft.	In.	Ft.	In.	Ft.	In.	Ft.	In.	Ft.	In.
Morpeth Lock as a Graving Dock			85	0	12	0	26	0	..		468	0
West Float	No. 2	East	50	0	7	9	25	0	750	0	..
	No. 3	West	85	0	7	9	25	0	750	0	1500	0
Total Length of Floor of the Birkenhead Graving Docks											1968	0
Total Length of Floor of the Liverpool Graving Docks											10136	6
Total											12104	6

LIVERPOOL GRIDIRONS.
Gridirons.	Breadth of Gridiron.		Length.
	Ft.	In.	Ft.	In.
Clarence Graving Dock Basin—The Blocks are laid 2 feet 2 inches below the Datum at the South end of the Gridiron, and 3 inches below at the North end	25	6	313	6
King’s Pier—The Blocks are laid at the level of the Datum	26	0	509	0
Total Length of the Liverpool Gridirons			822	6

LANDING STAGES.
Liverpool.—	Prince’s Stage	1002 6 long;	80 wide,	4 Bridges from the shore.
	George’s Stage	505 0 long;	80 wide,	2 Bridges from the shore.
Birkenhead.—	Low Water }	1040 0 long;	50 & 35 wide,	2 Bridges from the shore.
	Basin Stage }
	Woodside Stage	800 0 long;	80 wide,	2 Bridges from the shore.

Note.—The South end of the Woodside Stage, for a length of 300 feet, including one of the Bridges, is appropriated to the use of the Birkenhead Commissioners. The 500 feet Northwards, and the other Bridge, is under the superintendence of the Dock Board. In connection with this stage there is a Floating Bridge, 678 feet in length by 30 feet in width, by means of which an easy incline for Carriage Traffic is maintained at all times of the Tide.

Docks belonging to the Corporation of Liverpool and Others.		Width of Entrance.			Level of Sill.				Level of Coping above Datum.		Water Area.
Docks belonging to the Corporation of Liverpool and Others.		Width of Entrance.			Above Datum.		Below Datum.		Level of Coping above Datum.		Water Area.
			Ft.	In.	Ft.	In.	Ft.	In.	Ft.	In.	Ac.	Yds.
The Corporation of Liverpool.
	The River Craft Dock	Outer	30	0	0	3	..		25	4	1	3416
	Lock, and Eagle Basin	Inner	30	0	1	3	..		25	10	..
Ditto	Anderton Basin	..	40	0	..		..		..		0	1198
The Trustees of the late Duke of Bridgewater.
	Duke’s Dock	Outer	40	0	..		4	6	25	6	2	1336
		Middle	28	10	0	6	..		22	9	..
		Inner	40	0	..		6	0	25	0	..
Ditto	Egerton Dock	..	20	0	0	6	..		23	0	0	2700
The London & North-Western Railway Company.
	Garston Dock	North	20	0	..		6	0	26	0	6	1200
		South	50	0	..		..		..		..
											11	170

The Leeds and Liverpool Canal is in communication with Stanley Dock through Four Locks and Five intermediate Basins. The Locks are each 81 feet long by 16 feet 6 inches wide, and the Total Rise is 46 feet 6 inches. The Level of the Water in the Canal is 58 feet above the Datum.