'Inches hour' presentation slideshows

Tom Dalziel, Assistant Manager Contra Costa Clean Water Program Dan Cloak, Principal

Low Impact Development for Compliance with NPDES Treatment and Hydrograph Modification Management Requirements in Contra Costa County. Tom Dalziel, Assistant Manager Contra Costa Clean Water Program Dan Cloak, Principal Dan Cloak Environmental Consulting

611 views • 47 slides

Surface Drainage/Rational Method

Surface Drainage/Rational Method. Transverse slope. Longitudinal slope. Longitudinal channel. Surface Drainage System Design. Tradeoffs: Steep slopes provide good hydraulic capacity and lower ROW costs, but reduce safety and increase maintenance costs and erosion Three phases

1.02k views • 37 slides

417 views • 29 slides

Infiltration : Objectives

Infiltration : Objectives. Understand the three processes of infiltration Understand the difference between rate (flux) and volume of infiltration Identify physical and biological factors that affect infiltration rates and volumes Learn about methods for measuring infiltration

834 views • 25 slides

Canyon Flooding: Next Steps

Canyon Flooding: Next Steps. Presented by Steve King, Public Works Director-Engineering. No. 1 Canyon Drainage Fifth Street on July 28th. Canyon Drainage Problems. Flooding and debris from higher up in the canyons (outside the city) Poorly maintained drainages on private property

320 views • 20 slides