PCWA-L 467.pdf - PCWA Middle Fork American River Project ...
PCWA-L 467.pdf - PCWA Middle Fork American River Project ...
PCWA-L 467.pdf - PCWA Middle Fork American River Project ...
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5. DISCHARGE-CURRENT·METER METIlOD 123<br />
meter is easy to clean and is in a convenient position when not being<br />
operated.<br />
All sounding reels fit the boat boom except the A-pack and the<br />
Canfield reels, which can be made to fit by drilling additional holes in<br />
the reel plate on the boom.<br />
In addition to the equipment already mentioned, the following<br />
items are needed when making boat measurements:<br />
1. A stable boat big enough to support the hydrographers and equip·<br />
ment.<br />
2. A motor that can move the "boat with ease against the maximum<br />
current in the stream.<br />
3. A pair of oars for standhy use.<br />
4. A life preserver for each hydrographer.<br />
5. A bailing device.<br />
Figure 82 shows the equipment assembled in a boat.<br />
\<br />
fa.<br />
t f<br />
FlGURE 79.-Horizontal-axis boat tag-line reel with a brake.
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