Lee Mattis
Lee Mattis, P.E.
Materials Engineer

Lee has 35 years of experience in the construction industry and manages CEL Consulting as Principal Engineer. His expertise includes concrete anchorage design and testing, building structure and construction materials investigations and testing, structural steel and welding consultation and special inspection and testing consultation. He is a registered civil engineer in California, Florida and New York.

Representative Projects

Moment Frame Weld Investigations
Arranged for and coordinated the exposure of moment frame connections; inspected exposed connections visually and nondestructively for Northridge earthquake-type damage; provided consultation on weld repair techniques and specifications; oversaw special inspection of repairs for three buildings: Pasadena Financial Center (9 stories), Pasadena; Foster City Metro Center (20 stories), Foster City; Office Building (6 stories), San Mateo
City of Fremont
Quality management of special inspection for new library, animal shelter and fire station projects; construction administration of fire station projects
Concrete and adhesive anchor qualification testing programs (numerous) for ICC-ES approval
Hilti, Inc., ITW Ramset/Redhead, Powers Fasteners, Simpson Strong-Tie, Covert Operations, Unitex, Wej-It Fastening Systems, US Anchor Corp., Diversified Fastening Systems, Gunnebo Fastening systems
Bechtel National, Inc. - DOE Waste Treatment Project; Hanford, Washington
On site qualification testing of reinforcing steel concrete dowels, 2003. Qualification laboratory testing of post-installed mechanical anchor in cracked concrete 2004.