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Libby Creek: YIC surveyed 9,517 m (5.9 mi) of Libby Creek, including the tributary Smith Canyon
Creek. YIC identified two fish passage features and one screening feature on mainstem Libby Creek
(Fig 11). Site 960307, a dam and gravity diversion, received a PI of 13.48 and an SPI of 5.28,
respectively (Tables 4 and 5). This unscreened gravity diversion may remove up to 3.3 cfs (1,522
gpm) from Libby Creek based on diversion ditch area. The ditch was not flowing at the time of
survey. The associated rock fill dam had an excessive water surface difference of 0.87 m. Correction
of all barriers in the Libby Creek basin would open 25,833 m (16.1 mi) of habitat for depressed
Summer Steelhead and resident Rainbow/Cutthroat Trout. Smith Canyon Creek contains four
documented culverts (Fig 11). Site 960310 received the highest PI at 5.33 (Table 5). Trout were
seen in several pools upstream of the culverts.
ETDs were completed for tributaries Ben Canyon Creek, SF Libby Creek, NF Libby Creek and
Mission Creek totaling 17,042 m (10.6 mi) of fish-bearing habitat above the USFS boundary.
Okanogan Conservation District (OCD) identified five barrier culverts on USFS land (Fig 11).
Barrier falls terminate main stem anadromous access 16,166 m (10 mi) from the mouth of Libby
Creek.
Figure 11. Libby Creek known sites.
Gold Creek: YIC walked 3,900 m (2.4 mi) of Gold Creek beginning approximately 1,500 m (0.9
mi) from the mouth to the USFS boundary. A downstream landowner denied YIC access to the
lower reaches and the confluence. No upstream barriers were found on mainstem Gold Creek. Two
tributaries, South Fork and Middle Fork were also surveyed. Each are reported as individual systems.
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