Leveling job along a channel has been done. 6 turning points were The elevation of BM1 is 683.45 ft, and BM2 is 664.40 ft. Calculate turning points. Solution Station B.S. H.I.= (Elevation +BS) F.S. rise ( F.S-B.S) fall ELEVATION ADJUSTED ELEVATION( HI -Elevation) BM1 2.35 685.8 683.45 2.35 TP1 1.48 680.46 6.82 4.47 678.98 1.48 TP2 680.46 7.12 5.64 673.34 7.12 TP3 2.83 675.61 7.68 0.56 672.78 2.83 TP4 675.61 8.32 5.49 667.29 8.32 TP5 3.12 671.48 7.25 1.07 668.36 3.12 TP6 671.48 5.89 2.77 665.59 5.89 BM2 671.48 6.88 0.99 664.6 6.88 Elevation = (BM1 +(fall) or (-rise).