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Table 2-2. Wightman Forlc Alamosa River Segment and Subwatershed Characteristics <br /> Upstream Downstream <br /> Length Area Elevation Elevation Average <br />Number Description (miles) (mil (ft MSL) Ift MSL) Slope <br />W1 Alamosa River to Whitney Gulch 1.2 5.4 9,920 9,377 8.5°/° <br />W2 Big Horn Hollow to Whitney Gulch 2.0 1.5 10,440 9,920 5.0°/° <br />W3 Summitville to Big Horn Hollow 2.8 7.2 11,400 10,440 6.6°/0 <br />W4 Wightman Fork above Summitville 0.3 1.7 11,468 11,400 4.7°/° <br />The Master Plan segments do not coincide exactly with the CDPHE segments because the Master Plan <br />evaluates other resource areas in addition to water quality. Table 2-3 compares the CDPHE and Master <br />Plan segments. The CDPHE segments are also depicted on a map in the water quality section of the <br />affected environment (Figure 2-53). <br />Table 2-3. Comparison of CDPHE and Master Plan Segments for the Alamosa River <br />CDPHE Segment ~ Master Plan Segment <br />1) Tributaries in the South San Juan Wilderness <br />2) Alamosa River from source to Alum Creek <br />3a) Alamosa River from Alum creek to Wightman Fork <br />3b) Alamosa River from Wightman Fork to Fern Creek <br />3c) Alamosa River from Fern Creek to Ranger Creek <br />3d1 Alamosa River from Ranger Creek to Terrace Reservoir <br />4a) Mainstem of Alum Creek, Bitter Creek, Burn Creek, and Iron Creek from source <br />to confluence with Alamosa River with the exception of 4b <br />4b1 Mainstem of Iron Creek from its source to immediately above the confluence <br />with Tributary G <br />5) Mainstem of Wightman Fork from source to west line of S30, T37N, R4E to <br />the confluence with Alamosa River <br />61 Mainstem of Wightman Fork from the west line of S30, 37N, R4E to the <br />confluence with Alamosa River <br />71 Jasper Creek <br />81 Terrace Reservoir <br />9) Alamosa River from outlet of Terrace Reservoir to Gunbarrel Road <br />101 Alamosa River from Gunbarrel Road to point of final diversion <br />T11 Treasure Creek <br />12) Alamosa River from Treasure Creek to Iran Creek <br />11) Alamosa River from Iron Creek to Wightman Fork <br />10) Alamosa River from Wightman Fork to Jasper Creek <br />91 Alamosa River from Jasper Creek to Fern Creek <br />81 Alamosa River from Fern Creek to Beaver Creek <br />71 Alamosa River from Beaver Creek to French Creek <br />61 Alamosa River from French Creek to Terrace Reservoir Inlet <br />W4) Wightman Fork above Summitville <br />W3) Wightman Fork from Big Horn Hollow to Summitville <br />W2) Wightman Fork from Whitney Gulch to Big Horn Hollow <br />W1) Wightman Fork from Alamosa River to Whitney Gulch <br />51 Terrace Reservoir <br />41 Alamosa River from Terrace Main Canal to Terrace Outlet <br />31 Alamosa River from Terrace Main Canal to Gunbarrel Road <br />21 Alamosa River from Gunbarrel Road to County Road 10 <br />11 Alamosa River from County Road 10 to point of last diversion <br /> <br />Note: Segment endpoints do not always coincide so that correlation between segments is not always exact. <br />Alamosa River Watershed Restoration Master Plan and Environmental Assessment Page 2-7 <br />