112 LOCAL ENGINEEEING WORKS. 



low tides, the total discharge in twelve hours being between 

 90 and 100 million cube feet. Stoney's patent sluices 

 would be placed at the inlet at Stapleton, and self-acting 

 gates at the outlet to the Avon at Black-Rock. The culvert, 

 if constructed, would also provide for the interception and 

 discharge to the Avon of the flood waters of the Boiling 

 Wells, Cutlers' Mills, and Horfield Brooks, which now cause 

 local flooding, independently of that arising from the 

 Frome. 



Bedminster Floods. — Parts of Bedminster are not un- 

 frequently flooded from the water of the Malago Brook, 

 which passes by a very tortuous course through Bedminster, 

 to outlets to the New Cut. This brook has been greatly 

 obstructed and its area lessened, by arches of limited span. 

 As a remedy for the flooding from the Malago, Mr. Howard, 

 in his report of 1883, advised the construction of a relief 

 culvert from St. John's Hoad to an outlet to the New Cut 

 opposite Gothic Cottages, and this work, together with loop 

 culverts for avoiding parts of the archway of the Malago, 

 known to be in a defective condition, is now being carried 

 out. The principal culvert is 9 feet wide by 7 feet 

 3 inches high, having an area of about 50 square feet. 

 It is constructed of 9-inch (and in some parts 14-inch) 

 Cattybrook brickwork, in vertical bond. The cost of this 

 work, exclusive of property and easements, will be about 

 £20,000. Since a part of Bedminster is three feet or more 

 below the level of high spring tides, a valve will be placed 

 at the inlet to the present Malago Brook, in order to regulate 

 the passage of flood water through the channel of the brook 

 at times of highest tides. The main relief culvert will have 

 sufficient head to discharge at all states of the tide. There 

 can be no doubt that these works, when completed, will 

 effectually prevent future flooding from the Malago. 



