5.6 



5.2 



0.9 ft/sec 



Figure 12. — Diagram of Flow Pattern in Lawrence Fishway 



Tailwater Elevation 13 ft. (above mean sea level). The velocities shown are the 

 maximum velocities in the Jet. These velocities exist for only a few inches since 

 the jet dissipates rapidly. In pools E and F all velocities, other than in the 

 jet, were less than 1.5 ft/sec. The arrows diagram the main flow, not surface 

 currents. Note that the first A weirs are flooded. The almost 180° change in 

 the direction of flow shown in pools D and F is an undesirable feature. It has 

 been observed that the fish sometimes hit the wall at the turning point. 

 Probably the low water velocities involved keep this from being a serious condi- 

 tion in the Lawrence Fishway. 



H 



