"If a local authority consider that any watercourse or ditch, situate upon land laid out for building, or on which any land laid out for building abuts, should be wholly or partially filled up or covered over, they may by notice require the owner of the land laid out for building, before any building operations are begun or while any such operations are in progress, wholly or partially to fill up the watercourse or ditch, or to substitute therefor a pipe, drain or culvert with all necessary gullies and other means of conveying surface water into and through it."
"A local authority may, if they think fit, contribute the whole or a part of the expenses of the execution of works for any of the purposes mentioned in the foregoing provisions of this Part of this Act, or may by agreement with any owner or occupier themselves execute any such works which he may be required, or is entitled, to execute."
"A short distance from the embankment, however, the course of the [central] channel has been altered. At some stage in the course of the building development the combined drainage system of the eastern part of it was led by pipes converging to a point in the north eastern corner of the catchment area whence a 30-inch pipe was laid to discharge into the original central channel. The length of channel between the point at which this discharge took place and the embankment was filled in and a new channel was dug in a north westerly direction as a continuation of the line of the 30-inch pipe. There is thus formed a dog-leg which discharges into the watercourse at the base of the embankment through a culvert just opposite the southern end of the culvert. The introduction into the catchment area of a substantial acreage of housing and impervious roadways collecting surface water through a system of combined drainage has naturally increased the flow of water from the catchment area as a whole. The judge found as a fact that the total flow was increased by 17 per cent as a result of the urban development and that the contribution of the urban development to the total flow of water through the culvert was between 30 per cent and 47 per cent, according to whether one is considering normal or peak flow."
"We have been referred by Mr Scrivener to a plethora of reported decisions with a view to demonstrating – which is really beyond doubt – that a natural watercourse may, in certain circumstances, become a sewer, but, while paying tribute to the industry of counsel, which has left no channel unexplored, we derive little assistance from these cases, all of which turn on their individual facts. What is clear is that something very much more than the mere discharge of sewage into a stream (and, a fortiori, the mere discharge of pure surface water) is required before its status is changed to that of a sewer (see, for instance, Glasgow, Yoker & Clydebank Railway Company v MacIndoe (1896) 24 R (Ct of Sess) 160). Thus, for instance, if circumstances are such that what was originally an agricultural stream comes to carry sewage in such substantial quantities that its character is completely changed (as occurred in Falconar v Corporation of South Shields(1895) 11 TLR 223 ) it may no doubt become a sewer within the ordinary meaning of the word."
"207 MAGHULL CULVERT – DODDS LANE, DEVELOPMENT – The Sefton Building Company had submitted proposals for the development of their land at Dodds Lane through which passed the outer reaches of the Maghull Brook. The Building Company's proposals were that a pipe 39" in diameter should be laid in lieu of the culvert, and this had been agreed by the Council's Consulting Engineers as a suitable size to receive any further water from the remainder of the drainage area of the brook. It was understood that the pipe the Building Company would have required for their own development was 27" and it was understood that the Building Company's Architects were now discussing with the Council's Consulting Engineers the difference in cost between the sewers. The difference in cost would represent the contribution this Council would have to pay to the Building Company for the increased size of the pipe. RESOLVED that the report be received."
"MAGHULL RELIEF SEWER AND CULVERT Protracted negotiations with the British Transport Commission had now been completed for an easement in connection with the culvert under the Leeds and Liverpool Canal at Maghull. The easement provided for future maintenance of the culvert on a 50% basis between the British Transport Commission and the Council, and called for a payment by the Council of fees, 5 guineas for Commission's Surveyor, 3 guineas Commission's Solicitors and 8 guineas stamp duty on Easement in duplicate. RESOLVED that the proposed Easement be approved and the Council be recommended to affix their Seal thereto."