There are twenty-two culverts completed and in use, discharging the water from the several creeks and runs, some of them of considerable magnitude ; and their aggregate length is 1825 feet. The number partly finished was seven, and their length is 578 feet. Seven of these culverts measure from 100 to 148 feet in length seven ;

of them from 80 to 96 feet, and thirteen of them from 50 to 72 feet. Nine of them are large, measuring from six to ten feet span, eight of them from three to four feet span and ;

the remainder, from one and a half to two feet. 4th. TUNNELS. Three of the tunnels have been perforated through the solid rock, from one end to the other, in the aggregate 670 feet in length. One on section twenty, 335 feet one on section fifteen, 165 feet and one on section thirty, 170 feet in length. ; ;

There are also five tunnels, partly finished, measuring, in the aggregate, 610 feet, excavated. In a long tunnel on section fifteen, there have been excavated through the solid rock,

158 MEMOIROFTHE 360 feet ; and another on section sixteen, 200 feet ; the other three, from 10 to 25 feet ;

making a total of tunnel excavation of 1280 feet in length. 5th. FOUNDATION AND PROTECTION WALL. The quantity of foundation wall laid, amounted to 28,000 cubic yards, and of protection wall, 13.160 cubic yards. This is but a very brief sketch of the work which has been performed, and is confined altogether to the operations on the first and second divisions, exclusive of the large amount of excavation in rock and earth on a line of thirty-three miles in length, nearly the whole of which has been completed, together with a large amount of building materials prepared.