Rock armouring Creekline restoration 7 roc Rock armouring Creekline restoration 1 prework Rock armouring Creekline restoration 2 prework Rock armouring Creekline restoration 3 rock prep Rock armouring Creekline restoration 4 placement Rock armouring Creekline restoration 6 coir log Rock armouring Creekline restoration 7 overview Rock armouring Creekline restoration 8 Restoration