| OCR Text |
Show of mass movement. General steepness of the slope enhances the possibility of trouble developing,, These steep slopes will necessitate large fill slopes and high cutbanks which will increase the erosion hazard on the road prism. " d. Sixth Water Reservoir to Tunnel Inlet ( Section 4) " This site may be one of the most limited as far as development is concerned., Bedrock outcrops are prevalent,, Possible indicators of the site instability are the presence of gullies and spoon- shaped areas indicative of unstable land mass. The highly erosive nature of this area may seriously affect the proposed developments. Roads will require special design. Further adverse effects may come from waves cutting the sidehills or saturation of the soil mass after reservoir construction. Aqueduct " a* East Side of Hayes Reservoir to Sams Canyon ( Section 1) " Bedrock outcrops may be encountered. Fine textured soils will necessitate particular attention to drainage problems from the construction area. " b, Sams Canyon to the Narrows ( Section 2) " Steep slopes adjoin the canyon bottom in this area. Special precautions should be taken to ensure that sediment does not enter the stream channel during construction or post construction activity. " c. The Narrows to Three Forks ( Section 3) " The canyon is extemely narrow and rough. Outcrops of conglomerate are exposed. Springs are present along the lower portion of this section. Water quality will be adversely affected if the road and aqueduct are expanded into the current stream channel. Hazard from rockfall during freeze- thaw periods is a problem. " d. Tanner Ridge ( Section 4) " This area is generally suitable for construction although steepness of slope may present some problem with relation to cut and fill slopes. The ridge also presents bedrock outcroppings which may present a hazard in construction. " e. Tunnel Inlet to Sixth Water Reservoir ( Section 5) " Slopes on the north side of Sixth Water are generally unstable. Mass movement is evident in 254 |
