Dec-2009, the price at this time is about $16.00 a ton
Important considerations when using riprap for erosion control include selecting the appropriate size and shape of riprap rocks to withstand the anticipated water velocity, ensuring proper installation techniques such as proper compaction and grading to prevent gaps and movement, and regular inspection and maintenance to address any issues or wear over time. Additionally, it's essential to consider the environmental impact of the riprap installation and ensure it is done in a sustainable and ecologically friendly manner.
riprap
Riprap is a foundation made from irregular stones.
di ko alam
In the UK the rock material your referring to is known as Riprap or rock armour.
Riprap protects the coast by acting as a barrier that absorbs and deflects wave energy, reducing erosion and preventing the loss of land. The stones or rock fragments used in riprap help stabilize the shoreline, allowing for the natural sediment deposition process to continue. Additionally, riprap can facilitate the growth of marine habitats, further enhancing coastal resilience against storms and rising sea levels. Overall, it serves as a critical measure in coastal management and protection strategies.
Riprap can lead to habitat disruption for aquatic and terrestrial wildlife, as the rocky surfaces can hinder the natural movement of species. Additionally, the installation of riprap can be costly and may require ongoing maintenance to ensure its effectiveness against erosion. Over time, riprap may also become less effective as sediment accumulates or vegetation establishes, potentially necessitating further interventions. Lastly, it can create aesthetic concerns in natural landscapes, altering the visual appeal of shorelines or riverbanks.
about 120 years (which is very long compared to other methods of sea defences.)
Caroline Maniaci has written: 'Vegetated riprap survey of highways in southcentral and interior Alaska' -- subject(s): Management, Slopes (Soil mechanics), Riprap, Stream conservation, Soil stabilization, Stability, Maintenance and repair, Riparian areas, Erosion
Gary Snyder's poem "Riprap" symbolizes the process of finding harmony and balance in life through the use of stones and natural elements. The poem celebrates the simplicity and interconnectedness of nature, encouraging readers to find peace and meaning in the natural world.
about 2.00$
How much did the mausoleum at Halicarnassus cost?