Stream Simulation Design Process - USDA Forest Service
Stream Simulation Design Process - USDA Forest Service
Stream Simulation Design Process - USDA Forest Service
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Durability - Abrasion<br />
Abrasion rate depends on Material Abrasion Resistance<br />
• Sediment<br />
– size<br />
– density~ strength<br />
– shape (sharpness)<br />
– transport rate<br />
• Flow characteristics<br />
• Concrete<br />
– quality important<br />
– resistant to abrasion<br />
• Aluminum culverts<br />
– more vulnerable to sand<br />
• Aluminized-steel culverts<br />
– more vulnerable to cobble<br />
• Galvanized steel culverts<br />
– more vulnerable to cobble<br />
high<br />
low
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