sentences:  He also selected which of the contractors who tendered for the job should be awarded the contract, but his involvement then ceased, and the construction was supervised by William Crosley, the resident engineer.The quality of the workmanship was excellent, and by the time the canal opened on 9 November 1831, the total cost was only slightly more than the estimate, at £320,000.Like many of Telford's designs, it used cuttings and embankments to maintain as straight and level a course as possible, and this enabled all the locks to be built as a single flight, although there was also a stop lock where the canal joined the Hall Green Branch of the Trent and Mersey Canal at Hall Green.