2015 – Raven 405, 155 & 171 – Fresno, California – Fresno/Clovis Headworks Rehab

Images Combined

Raven Lining Systems
13105 E. 61st Street,
Suite A
Broken Arrow, OK 74012
(918) 615-0020

Location of Project:
Fresno, California

Certified Applicator(s):
National Coating and Lining was founded in 2003 by core members of other construction companies based on building upon their expertise, experience and dedication to carry on the same types of projects as they have for a number years in the coatings and linings industry.

City of Fresno

Floyd Johnston Construction Co., Inc., Blair, Church & Flynn and Bay Area Coating Consultants Inc.

Date of Project:
March 2015

Raven 155 or Raven 171 Primer
Raven approved concrete repair material
Raven 405 Epoxy applied at 125.0 mils DFT

Type of Structure(s):
Concrete headworks and channels (41,000 square feet)

Description of Application:
The Headworks Building was constructed in 1996 as part of a facility expansion project. The building is split into three sections and after a facility inspection, it was found that the thin-film epoxy system in Section 3 had failed and was replaced with Raven 400 in 2004. After inspecting the center section (2) of the headworks in 2013, the owner found that the existing coating system had failed and that the concrete was extremely degraded and in need of repair. Raven 405 was chosen as the protective lining system. Raven Certified Applicator, National Coating and Lining, had 60-days to completely remove the existing coating, prepare the concrete for rehabilitation, apply up to 2” of concrete repair materials and apply the Raven 405 protective lining system. The aggressive schedule was required because of the cost of bypassing 80 million gallons of raw wastewater around the headworks building.

Fresno/Clovis Headworks Case History