Welcome to the Redwood Empire Branch of the American Society of Civil Engineers

Welcome to the website of the Redwood Empire Branch of the American Society of Civil Engineers (ASCE), a professional society for civil engineers. The Redwood Empire Branch of Region 9 covers the California counties of Sonoma, Napa, Lake, and Mendocino. Find more information about the Branch by using the Navigation Bar at the top of the page.

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Monthly Luncheon

See Events Page for additional monthly luncheon details. 

ASCE December Luncheon: Designing Shallow Pavement Systems that are Cost-Effective for Stormwater Management

Description: Typical pervious pavement design calls for at least 12 inches of excavation, with the storage capacity limited to the 40% air void in the rock layer beneath the pavement. Any additional excavation to provide more storage capacity adds to the time and cost of the system. By replacing stone with PaverGuide’s shallower structural base, designers increase storage capacity to a 90% air void, at lower cost. By walking through how to design using PaverGuide, and showing existing installations, we’ll discuss how to plan shallower, higher-performing, and lower-cost stormwater systems.  Systems that also increase pavement stabilization and weight-distribution and allow connectivity across a site.  We will explore models that show the benefits of integrating the permeable pavement system to go beyond a contributing drainage area ratio of 1:1 and include connectivity to adjacent areas, such as roofs.

PaverGuide was selected for this year’s Aqualyst accelerator program for innovative stormwater technologies. The company invented a structural base for paving systems that is installed faster and cheaper than the stone it replaces, and at 90% void, provides a massive rainwater reservoir and expansive infiltration surface.


Speaker: Andrew Whaley, PE, CPSWQ, M.ASCE

Andy Whaley is a Professional Engineer in Maryland, Virginia and the District of Columbia with 13 years of professional experience in civil engineering and stormwater management.  Andy has performed and overseen design, construction, inspection and maintenance of BMPs throughout Maryland and Virginia.  Currently, Andy is the Vice President at PaverGuide, where he oversees sales and product development for advance permeable pavement products that lower costs, improve pollutant removal, and reduce environmental impacts.  Prior to PaverGuide, Andy spent four years at Stormwater Maintenance & Consulting overseeing and managing construction, maintenance, inspection, and design of BMPs in Prince George’s County, MD, Washington DC, and Fairfax County, VA.  Andy also served 12 years in the Army Reserve as an Engineer Officer.  Andy deployed in Afghanistan in 2012 where he led 160 Engineer Soldiers in combat and construction operations building roads, bases, and buildings.


Date/Time: Thursday, December 12th, 2019 at Noon

Location: Cattlemen’s, 2400 Midway Drive, Montgomery Village, Santa Rosa

Cost: $25 ($15 for students)

• Sirloin Steak
• Teriyaki Chicken
• Lemon Herb Chicken
• 3-Cheese Marinara Pasta
• Salmon
Vegetarian option available upon request.
Each choice includes salad, bread, coffee, and tea.