HY8:Plastic Pipe Materials: Difference between revisions
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Revision as of 14:55, 1 July 2011
HY-8 7.1 has been updated to incorporate different types of plastic pipes. The following types of plastic pipes and their associated inlet edge conditions have been added to HY-8 7.1:
- 1. PVC
- a. Manning’s n (From HDS-5): 0.009-0.011 (use 0.011)
- b. Inlet Edge Conditions:
- i. Square Edge with Headwall
- 1. Notes:
- a. Use HY8 Equation Number 9
- b. HDS5 Chart Number 1-1
- c. Equation for Concrete Pipe Square Edge with Headwall
- 1. Notes:
- ii. Beveled Edge (1:1)
- 1. Notes:
- a. Use HY8 Equation Number 6
- b. HDS5 Chart Number 3-A
- c. Equation for Circular pipe culvert with beveled edge (1:1)
- 1. Notes:
- iii. Beveled Edge (1.5:1)
- 1. Notes:
- a. Use HY8 Equation Number 7
- b. HDS5 Chart Number 3-B
- c. Equation for Circular pipe culvert with beveled edge (1.5:1)
- 1. Notes:
- iv. Mitered to Conform to Slope
- 1. Notes:
- a. Use HY8 Equation Number 2
- b. HDS5 Chart Number 2-2
- c. Equation for Corrugated Metal pipe culvert, Mitered to conform to slope
- 1. Notes:
- i. Square Edge with Headwall
- 2. Smooth HDPE
- a. Manning’s n (From HDS-5): 0.009-0.015 (use 0.012)
- b. Inlet Edge Conditions:
- i. Square Edge with Headwall
- 1. Notes:
- a. Use HY8 Equation Number 9
- b. HDS5 Chart Number 1-1
- c. Equation for Concrete Pipe Square Edge with Headwall
- 1. Notes:
- ii. Beveled Edge (1:1)
- 1. Notes:
- a. Use HY8 Equation Number 6
- b. HDS5 Chart Number 3-A
- c. Equation for Circular pipe culvert with beveled edge (1:1)
- 1. Notes:
- iii. Beveled Edge (1.5:1)
- 1. Notes:
- a. Use HY8 Equation Number 7
- b. HDS5 Chart Number 3-B
- c. Equation for Circular pipe culvert with beveled edge (1.5:1)
- 1. Notes:
- iv. Thin Edge Projecting
- 1. Notes:
- a. Use HY8 Equation Number 1
- b. HDS5 Chart Number 2-3
- c. Equation for Corrugated Metal pipe culvert, Thin edge projecting
- 1. Notes:
- v. Mitered to Conform to Slope
- 1. Notes:
- a. Use HY8 Equation Number 2
- b. HDS5 Chart Number 2-2
- c. Equation for Corrugated Metal pipe culvert, Mitered to conform to slope
- 1. Notes:
- i. Square Edge with Headwall
- 3. Corrugated PE
- a. Manning’s n (From HDS-5): 0.009-0.015 (use 0.024)
- b. Inlet Edge Conditions:
- i. Square Edge with Headwall
- 1. Notes:
- a. Use HY8 Equation Number 3
- b. HDS5 Chart Number 2-1
- c. Equation for Corrugated Metal pipe culvert with Headwall
- 1. Notes:
- ii. Beveled Edge (1:1)
- 1. Notes:
- a. Use HY8 Equation Number 6
- b. HDS5 Chart Number 3-A
- c. Equation for Circular pipe culvert with beveled edge (1:1)
- 1. Notes:
- iii. Beveled Edge (1.5:1)
- 1. Notes:
- a. Use HY8 Equation Number 7
- b. HDS5 Chart Number 3-B
- c. Equation for Circular pipe culvert with beveled edge (1.5:1)
- 1. Notes:
- iv. Thin Edge Projecting
- 1. Notes:
- a. Use HY8 Equation Number 1
- b. HDS5 Chart Number 2-3
- c. Equation for Corrugated Metal pipe culvert, Thin edge projecting
- 1. Notes:
- v. Mitered to Conform to Slope
- 1. Notes:
- a. Use HY8 Equation Number 2
- b. HDS5 Chart Number 2-2
- c. Equation for Corrugated Metal pipe culvert, Mitered to conform to slope
- i. Square Edge with Headwall
Related Topics
Introduction
Culvert Data
Culvert Data
Site Data
