Long-Term Assessment of an Innovative Mangrove Rehabilitation Project: Case Study on Carey Island, Malaysia

Table 2

Estimation of hard-engineering restoration of the project at Carey Island in 2008 and 2012 with consideration of inflation rate.

No.	Item	Description	Unit	Unit cost (RM)	Total quantity for 80 m length	Total cost 2013 (RM) with inflation rate	Total cost 2008 (RM)	Total cost 2013 (USD) with inflation rate	Total cost 2008 (USD)
1	L-block interlocking (60 × 75 cm), concrete: grade 45, steel bar (diameter 10)	Ready mix concrete (normal mix), grade 45	m^3	193	27.5288	5,313.06	4,747.75	1,736.29	1,551.51
		Steel bar	ton	2216.67	1.69612	3,759.74	3,359.70	1,228.67	1,097.94
2	Stone (D50 = 17–20 cm)	density: 2300 kg/m^3	ton	30	637.63	19,128.90	17,093.59	6,251.27	5,586.14
3	Gabion basket (diameter 6 mm)	1 m × 1 m × 1 mm	unit	60	225	13,500.00	12,063.60	4,411.76	3,942.35
4	Wire covered by plastic (diameter 4 mm)		m	6	264	1,584.00	1,415.46	517.65	462.57
5	Employer (8 person per day for 1.5 month)		day	100	360	36,000.00	32,169.60	11,764.71	10,512.94
The total price (for 1920 m^2)						79,285.70	70,849.70	25,910.36	23,153.50
The total price (for 0.01 km^2)						412,946.34	369,008.85	134,949.78	120,591.13