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
   Soil covering on terrace m3
Slope stability works
   Boulder stacking m2 100 200 200 200 400
   Underground laying structur) ea 1 2 2 3
   Stone masonry on hillside m 200 200 300 200 400
   Terrace sodding m 200 200
   Vegetation sack stacking m 100 100 200 300 400 400
Slope greening works
   Seeding m2 874 2,262 3,000 2,595 3,090 3,832
   Slope mulching m2 846 1,545 1,916
   Tree planting tree 4,000 4,000 4,000 4,000 4,000 4,000
   Sod planting m2 422 515 638
   Seed-fertilizer-soil mixed spraying m2
Drainage works
   Concrete channel m
   Sod channel m 204 200 200 200 200 200
   Stone channel m 30 33 41 41 63
   Water collecting well ea
   Rill control by sod ea 5 10 20 20 40 60
   Rill control by stone ea 1 2 2 3
   Sediment retarding basin ea