Figure 13. — This illustrates 

 proximity of site 917-1 

 to ridgetop. 



Site 917-1. As shown in figures 13 and 14, this site is a stable embankment 

 crossing a small gully on Road 917 and is located approximately 1.7 miles from the 

 junction of Road 917 and the main Secesh Road (fig. 4). A plan view and three profiles 

 are shown in figure 15. 



Provisions for surface drainage seem to be adequate at this site. A culvert has 

 been properly installed in the embankment with a suitable downspout and wire mesh 

 catchment to dissipate the hydraulic energy. The close proximity of the site to a 

 ridgetop can be seen in figure 13, illustrating the relatively small drainage area 

 contributing to the culvert flow. The road has a 9 percent favorable grade at this 

 location and a similar embankment with drainage equally well provided for is located 

 only about 100 yards up the road (east) from this site. Therefore, surface water 

 flowing down the road does not present a drainage problem at site 917-1. A soil- 

 cement berm, which can be seen in figure 14, prevents road-surface water from eroding 

 the outside slope of the embankment. 



Figure 14. — This illustrates 

 berm and culvert downspouts 

 for proper handling of water 

 at site 917-1. 



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