367:
27:
419:
241:. The tunnel is approximately 45 metres (148 ft) deep, and was one of the first tunnels in the UK to be lined with pre-cast concrete segments rather than cast iron. A tunnel was chosen due to the high costs of building an overhead transmission line at this point in the river.
244:
In
September 2023, National Grid announced that they were planning to retire the Thames Cable Tunnel, as it was approaching the end of its useful life. The Grain to Tilbury project aims to construct a new tunnel to replace it.
485:
480:
490:
456:
333:
226:
44:
110:
91:
449:
63:
495:
48:
70:
238:
357:
380:
442:
77:
475:
37:
59:
254:
259:
234:
84:
152:
426:
315:
288:
225:
Completed in 1970 at a cost of around £3 million (equivalent to £59 million in 2023) by the
16:
Tunnel carrying high-voltage cables beneath the River Thames between
Tilbury and Gravesend
334:"National Grid launches consultation on planned Grain to Tilbury infrastructure upgrades"
469:
371:
210:, is a tunnel carrying high-voltage electrical transmission lines beneath the lower
211:
26:
395:
382:
366:
319:
219:
292:
230:
229:, the tunnel carries 400 kV transmission cables between substations at
215:
20:
222:. It remains the furthest tunnel downstream on the Thames.
430:
306:
Haswell, C.K. (December 1969). "Thames Cable Tunnel".
355:
192:
184:
176:
171:
163:
158:
148:
143:
135:
130:
125:
51:. Unsourced material may be challenged and removed.
486:Electric power transmission in the United Kingdom
308:Proceedings of the Institution of Civil Engineers
450:
8:
457:
443:
425:This European tunnel-related article is a
111:Learn how and when to remove this message
481:Electric power infrastructure in England
362:
271:
279:Anon (May 1970). "Cables Down Under".
122:
7:
415:
413:
227:Central Electricity Generating Board
49:adding citations to reliable sources
491:Tunnels underneath the River Thames
429:. You can help Knowledge (XXG) by
14:
417:
365:
208:Tilbury – Gravesend Cable Tunnel
25:
36:needs additional citations for
1:
512:
412:
159:Construction information
320:10.1680/iicep.1969.7250
281:Electronics & Power
255:400 kV Thames Crossing
496:European tunnel stubs
260:Dartford Cable Tunnel
172:Technical information
144:Ownership information
60:"Thames Cable Tunnel"
338:www.nationalgrid.com
293:10.1049/ep.1970.0161
206:, also known as the
45:improve this article
392: /
340:. 27 September 2023
204:Thames Cable Tunnel
126:Thames Cable Tunnel
180:Underground tunnel
476:Tunnels in London
438:
437:
200:
199:
153:National Grid plc
121:
120:
113:
95:
503:
459:
452:
445:
421:
420:
414:
407:
406:
404:
403:
402:
397:
396:51.448°N 0.399°E
393:
390:
389:
388:
385:
370:
369:
361:
350:
349:
347:
345:
330:
324:
323:
303:
297:
296:
276:
123:
116:
109:
105:
102:
96:
94:
53:
29:
21:
511:
510:
506:
505:
504:
502:
501:
500:
466:
465:
464:
463:
418:
410:
400:
398:
394:
391:
386:
383:
381:
379:
378:
376:
364:
356:
354:
353:
343:
341:
332:
331:
327:
305:
304:
300:
278:
277:
273:
268:
251:
237:as part of the
185:Type of current
117:
106:
100:
97:
54:
52:
42:
30:
17:
12:
11:
5:
509:
507:
499:
498:
493:
488:
483:
478:
468:
467:
462:
461:
454:
447:
439:
436:
435:
422:
375:
374:
352:
351:
325:
314:(4): 323–340.
298:
270:
269:
267:
264:
263:
262:
257:
250:
247:
198:
197:
194:
190:
189:
186:
182:
181:
178:
174:
173:
169:
168:
165:
161:
160:
156:
155:
150:
146:
145:
141:
140:
137:
133:
132:
128:
127:
119:
118:
33:
31:
24:
15:
13:
10:
9:
6:
4:
3:
2:
508:
497:
494:
492:
489:
487:
484:
482:
479:
477:
474:
473:
471:
460:
455:
453:
448:
446:
441:
440:
434:
432:
428:
423:
416:
411:
408:
405:
401:51.448; 0.399
373:
368:
363:
359:
339:
335:
329:
326:
321:
317:
313:
309:
302:
299:
294:
290:
286:
282:
275:
272:
265:
261:
258:
256:
253:
252:
248:
246:
242:
240:
239:National Grid
236:
232:
228:
223:
221:
217:
213:
209:
205:
195:
191:
187:
183:
179:
175:
170:
166:
162:
157:
154:
151:
147:
142:
138:
134:
129:
124:
115:
112:
104:
93:
90:
86:
83:
79:
76:
72:
69:
65:
62: –
61:
57:
56:Find sources:
50:
46:
40:
39:
34:This article
32:
28:
23:
22:
19:
431:expanding it
424:
409:
377:
342:. Retrieved
337:
328:
311:
307:
301:
284:
280:
274:
243:
224:
212:River Thames
207:
203:
201:
164:Commissioned
107:
98:
88:
81:
74:
67:
55:
43:Please help
38:verification
35:
18:
399: /
344:12 December
470:Categories
384:51°26′53″N
287:(5): 175.
266:References
235:Kingsnorth
193:AC voltage
101:March 2020
71:newspapers
387:0°23′56″E
220:Gravesend
249:See also
214:between
131:Location
231:Tilbury
216:Tilbury
136:Country
85:scholar
372:Energy
358:Portal
196:400 kV
87:
80:
73:
66:
58:
149:Owner
92:JSTOR
78:books
427:stub
346:2023
233:and
218:and
202:The
177:Type
167:1970
64:news
316:doi
289:doi
47:by
472::
336:.
312:44
310:.
285:16
283:.
188:AC
139:UK
458:e
451:t
444:v
433:.
360::
348:.
322:.
318::
295:.
291::
114:)
108:(
103:)
99:(
89:·
82:·
75:·
68:·
41:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.