Table 1.

Standard work applied	Unit	Qty.
		< 10°	10∼15°	15∼20°	20∼25°	25∼30°	≧ 30°
Earth works
Cutting	m3	686	5,731	10,587	20,584	30,360	48,176
Filling	m3	686	5,731	10,587	20,584	30,360	48,176
Carrying sediment	m3	137	1,146	2,117	4,117	6,072	9,635
Remained cut-wall slope grading	m3	486	1,264	1,704	2,361	2,877	3,568
Soil covering on terrace	m3	95	474	664	948	1,138	1,517
Slope stability works
Boulder stacking	m2	31	63	63	94	94	124
Underground laying structur)	ea			2	2	4	6
Stone masonry on hillside	m	32	79	110	142	173	221
Terrace sodding	m	13	31	44	56	69	82
Vegetation sack stacking	m	19	47	66	85	104	123
Slope greening works
Seeding	m2
Slope mulching	m2	679	1,769	2,385	3,305	4,028	4,280
Tree planting	tree	4,000	4,000	4,000	4,000	4,000	4,000
Sod planting	m2	97	252	340	472	575	713
Seed-fertilizer-soil mixed spraying	m2	194	505	681	944	1,151	1,417
Drainage works
Concrete channel	m		31	31	63	63	94
Sod channel	m	31	94	158	189	252	316
Stone channel	m	150	133	124	142	163	180
Water collecting well	ea	1	1	1	1	1	1
Rill control by sod	ea	5	10	20	30	40	60
Rill control by stone	ea			2	4	4	6
Sediment retarding basin	ea	1	1	1	1	1	1