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. Breach entrainment effectiveness at Stewart Lake rose from 39% of beads captured in the . breach during the first sampling period to 70% captured in the breach at the peak (Table 12). This was an improvement over 2005 where entrainment effectiveness decreased as flow increased, which was again due to the outlet being closed. . . Bonanza Bridge, 2006 River connection with the Bonanza Bridge wetland occurred on 22 May, when Green River flows at the Jensen gauge reached 442.4 m3/sec (site flow was 455.8 m3/sec and includes flows from Brush and Ashley creeks); however, flow going into Breach 2 was only about 0.11 m3/sec. Thus, sampling was postponed until the following day. The Bonanza Bridge site had the highest breach elevation connection and was therefore sampled the fewest number of times (Tables 13 and 14). Three bead sampling occasions were conducted at the Bonanza Bridge wetland in 2006, two on the ascending limb of the hydro graph and one on the descending limb. In addition to bead sampling occasions, two additional flow measurements were taken in breaches on the ascending limb of the hydro graph, and one additional one on the descending limb. Breach 2 connected at river flows of 428 m3/sec on the ascending limb of the hydrograph, but was not connected at 411 m3/sec on the descending limb of the hydrograph. Breach 3 remained connected with river flows only above 453 m3/sec. Flow entrainment was approximately an order of magnitude higher in Breach 2 than Breach 3 for all sampling periods. River flow and bead entrainment were lowest at Bonanza Bridge compared to other wetlands sampled in 2006. Similar to other wetlands, flow entrainment over the six measurement periods was highest at Bonanza Bridge at the highest river stage. Bead . .' . . . . 48 .