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Color drawing of excavation progress (Longitudinal Section) of kilometer point 1980 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2010 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2020 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2040 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2050 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2060 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2070 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2080 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2084 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2090 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2110 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2120 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2130 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2140 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2150 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2160 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2170 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2180 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2190 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2210 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2220 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2230 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2240 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2250 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 2260 in ink and colored pencil on graph paper.
