Standard work applied Unit Qty.
< 10° 10∼15° 15∼20° 20∼25° 25∼30° ≧ 30°
Earth works
   Cutting m3 1,995 2,625 6,247 7,045 12,920 16,813
   Filling m3 1,995 2,625 6,247 7,045 12,920 16,813
   Carrying sediment m3 399 525 1,249 1,409 2,584 3,363
   Remained cut-wall slope grading m3 150 150 211 257 319
   Soil covering on terrace m3 240 240 480 600 720
Slope stability works
   Boulder stacking m2 100 100 200 200 200
   Underground laying structur) ea 1 2 2 3
   Stone masonry on hillside m 100 200 200 200 400
   Terrace sodding m 100 100 200 200 400
   Vegetation sack stacking m 100 100 200 300 400 400
Slope greening works
   Seeding m2 874 1,583 2,100 2,536 3,090 3,932
   Slope mulching m2 678 900 1,268 1,545 1,916
   Tree planting tree 4,000 4,000 4,000 4,000 4,000 4,000
   Sod planting m2 422 1,030 1,916
   Seed-fertilizer-soil mixed spraying m2
Drainage works
   Concrete channel m 83 102
   Sod channel m 154 200 200 200 200 300
   Stone channel m 50 110 110 118 138 127
   Water collecting well ea 1 1 2 2 2 2
   Rill control by sod ea 10 20 30 40 60
   Rill control by stone ea 1 2 2 3
   Sediment retarding basin ea 1 1 1 1 1 1