244 UNIVERSITY OF COLORADO STUDIES 



earth to coarse gravel, with occasional cobblestones up to six inches in 

 diameter. Fig. 5 shows the unevenness of the banks and how they are 

 overhung with sod. The channel is well lined with sediment. The 

 cross-section is shown in Fig. 5a. 



Observation No. 6. Home Supply Canal 



The banks of this canal are in poor condition owing to the overhang- 

 ing rough sod. The bottom is composed of clean, firm sand and fine 

 gravel. The alignment in the portion tested is straight and the cross - 

 section is very uniform. See Figs. 6 and 6a. 



Observation No. 7. Loveland and Greeley Canal 



The banks of this canal have sod and grass overhanging and pro- 

 jecting into the water. The channel is composed of earth with many 

 cobblestones up to eight inches in diameter lying in the bottom. The 

 portion of the canal tested is on a curve. See Figs. 7 and 70. 



Observation No. 8. Handy Ditch 



The Handy ditch is in very poor condition, the gradient lacking 

 uniformity and the banks being verg ragged. The portion tested is on a 

 curve, the outer bank of which is protected by riprap. The channel is 

 composed of coarse gravel and pebbles. See Figs. 8 and 8a. 



Observation No. g. Hillsboro Ditch 



This canal has a very irregular gradient and its general condition is 

 bad. The banks are rough and the channel, which is of gravel, is badly 

 scoured by the current. The test was made just above the rating flume 

 and where the alignment is not perfectly straight. The water was 

 within half a foot of the top of the left bank when the readings were 

 taken. See Figs. 9 and ga. 



Observation No. 10. Thompson Mfg. Co. Canal 



This canal has ragged overhanging banks with trailing weeds and 

 grasses. The cross-section is irregular and the grade is excessive. The 

 channel contains cobblestones six inches in diameter. The water 



