2007-01-28 04:43:57 · 5 answers · asked by Polka Dot 1 in Science & Mathematics ➔ Earth Sciences & Geology
(Geog project!)
2007-01-28 04:48:37 · update #1
If you put in something that prevents erosion in one place, you will get more erosion in another place. This is actually a huge problem in shoreline environments: one person puts out a jetty to save their personal beach, someone else loses their personal beach and gains a lasting hatred for their neighbor. Plus you'll lose that sediment load at that point, which can have environmental effects downstream. This is a bigger problem when dams are put in, which completely shut off sediment transport and thus contribute to the deterioration of wetlands.
2007-01-28 05:29:18 · answer #1 · answered by kiddo 4 · 0⤊ 0⤋
It would depend on how far down stream. Imediately after the rip rap would be a slight swirling action, then 20 to 25 feet there would be no action. No contamination after initial placement, once rip rap is settled.
2007-01-28 04:50:41 · answer #2 · answered by preshus 3 · 0⤊ 0⤋
It prevent the movement of sediment downstream and this can radically change the profile of the downstream stream bed and therefor the organisms that can or can't live there.
2007-01-28 04:50:48 · answer #3 · answered by Ellie S 4 · 0⤊ 0⤋
did u or your family and house got swept by a flood or a landslide.Why are u asking such questions
2007-01-28 04:47:33 · answer #4 · answered by Lancelot 3 · 0⤊ 0⤋
On rip, hardly any. On rap, let's hope they ban it.
2007-01-28 04:47:13 · answer #5 · answered by poppy vox 4 · 0⤊ 1⤋