Adrian Stott wrote: > AIUI, The Channelsea River is deemed to have been only the channel > upstream of the Northern Outfall Sewer / Abbey Road. However, I > believe it has been entirely culverted now. Downstream of that is Bow > Creek, of which Abbey Creek is the upstream end.
If you read: http://www.british-history.ac.uk/report.aspx?compid=42750&strquery=stratford%20c.1930 and look at: http://www.old-maps.co.uk/ and http://www.newham.gov.uk/NR/rdonlyres/336B4CFE-ADC5-426D-9C86-4B2A6D1BBA3C/0/3MillsLRDoc.pdf You will find that Channelsea River extends down to the junction just before Three Mills and that Abbey Creek was the stub off the Channelsea River to the west. Abbey River is now connected to the Channelsea River, just below the Northern Outfall Sewer (present head of navigation), there being an island between the two waterways. Bow Creek terminates at Three Mills. Unfortunately Mike Stevens excellent map of the Bow Back Rivers is now longer available from the preserved bits of his website. >> Please note I said earlier on I said *semi-tidal*, the former >> totally tidal waterways above Prescott Lock will be *semi-tidal* as >> high spring tides will still overtop the new variable level Prescott >> Weir. The weir had to be designed like this, as to retain the level >> above high spring tide level there would only be a couple of feet >> headroom under most of the bridges on the semi-tidal side. > > That may be incorrect. > > The retained level in the Waterworks River will be below that of the > highest tides, for the headroom reason you give. However, I have > understood that the tide will be *totally* kept out of the WWR (as it > is already from the rest of the BBR, which has a different retained > level), not least to prevent the entry of Thames silt. However, I > stand to be corrected, if you provide the evidence. Shirley to maintain the water levels with no "salt" getting in, the weir crest levels must be controlled 24/7 either automatically, or by staff present all the time. I would have thought that the top of springs will only be kept out during such tmes as the waterways are being used commercially...which at the present rate does not seem very much. As for siltation, I would have thought that this would now be worse, without the scouring action of the tide? > I think Three Mills Lock is designed so that craft will lock *down* > through it into the WWR if they use it to leave Bow Creek at the top > of a big tide. Same as at Bow Lock (and Limehouse Lock, I guess). This is what I have heard. > BTW, I understand that pleasure craft access into WWR (mostly to get > to the moorings in Prescott Channel) will be via City Mill Lock, but > not until after the Olympics. This is interesting and makes a lot of sense for pleasure craft to not to be constrained by tides, but not much sense for the continual use of Prescott Lock. It would appear that the PLA should have built Prescott Lock and BW have been conned!...It would appear they have no idea where their jusisdiction now ends. I suppose BW were on the promise of more nice real estate to parcel up for re-development, after the Olympics. So BW have held onto their soon to be created "arms length" property division... but can you *really* see the "Conservatives" continuing with this, in the present bankrupt state of this nation? -- Neil Arlidge NB Earnest / Barge Maurice A (in the pipeline) TNC...Gorn west... http://www.tuesdaynightclub.co.uk/tour.html
