Key Challenges

Key challenges faced

• Obtaining reliable information about past projects related to high velocity stream crossings
• Obtaining concrete and other similar materials if a design method involving these materials is chosen
• Obtaining information on design and cost of articulated concrete blocks from a manufacturer
• Obtaining reliable topographic and survey data for the site
• Developing a stream crossing design that is economic for the landowner
• Being able to test our new proposed methods
• Ensuring the stream crossing will not erode under high flows
• Creating a surface that is safe for cattle and equipment to cross
• Following standards laid out by VA NRCS when creating a crossing
• Creating an accurate economic analysis based off the cost information received
• Calculating erodibility of rock crossing at new proposed site for 50 year design life
• Keying in the ACB crossing into existing grade at entrance and exit approaches