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Delaware Department of Transportation

Design Resource Center

Hydrology & Hydraulics

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Drainage Pipe Design
File Name Date Updated Description
Standard Installations  01/02/2014 ACPA Presentation for Indirect Design for Reinforced Concrete Pipe
Post Installation Evaluation and Repair Methods for Installed Reinforced Concrete Pipe  01/02/2014 Post Installation Evaluation and Repair Methods for Installed Reinforced Concrete Pipe
Fill Height Tables for Round Reinforced Concrete Pipe  01/02/2014 Fill Height Tables for Round Reinforced Concrete Pipe
Fill Height Tables for Elliptical Reinforced Concrete Pipe  01/02/2014 Fill Height Tables for Elliptical Reinforced Concrete Pipe
Arched RCP Deflections  04/19/2007 Maximum deflections for Arched RCP Pipe
Circular RCP Deflections  04/19/2007 Maximum deflections for Circular RCP Pipe
Horizontal Elliptical RCP Deflections  04/19/2007 Maximum deflections for Horizontal Elliptical RCP Pipe
Miscellaneous
File Name Date Updated Description
Drainage Design Workflow  
Map of New Castle County Watersheds  04/24/2007 Watersheds Map - New Castle County
IDF Curves  09/12/2008 IDF Rainfall curves for Delaware
American Concrete Pipe Association  

This web link redirects you to the American Concrete Pipe Association.

USDA Web Soil Survey – Soil Maps 

This web link redirects you to the Delaware Department of Agriculture's Map Server web page. To view the SCS Soil classifications click on "GIS Maps" on the left and then select "SCS Soils" map profile from the menu located at the upper right corner of the page.

FHWA Hydraulic Engineering Toolbox V4.10  

This web link redirects you to the Federal Highway Administration's (FHWA) Hydraulics Engineering website where you can download the FHWA Hydraulic Engineering Toolbox. This toolbox provides five calculators for analyzing channels, weirs, curb and gutter, rational method and detention basins.

NOAA Sea Level Rise and Coastal Flooding Impacts. 

This web link redirects you to the National Oceanic and Atmospheric Administration (NOAA) Sea Level Rise and Coastal Flooding Impacts web page. On this page you can view the potential impacts that may occur along the Mid-Atlantic coast line at various levels of rise in sea level elevation.

NOAA Global Sea Level Rise Scenarios 

This web link redirects you to the National Oceanic and Atmospheric Administration (NOAA) Global Sea Level Rise Scenarios for the United States National Climate Assessment report that was generated in December 2012.



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