Projects and Expertise

Marine Facilities

Owners responsible for marine facilities quickly learn that seawater is universal solvent for many metals used in docks, piers, and berths. 

Reinforced Concrete

Tinnea & Associate staff has an extensive background in controlling degradation of reinforced concrete and mortar structures. 

Wastewater Systems

We have worked with local utilities to design systems to control the corrosion and deterioration of many components of the water-wastewater network.



Tinnea & Associates LLC is a licensed engineering firm that brings together corrosion scientists and engineers to find solutions to our clients’ corrosion problems. Our services include pre-construction corrosion control design, inspection of existing structures, structure rehabilitation design, construction management, and expert witness services in litigation. We do not sell corrosion control products. Free of product line considerations, our recommendations are solution-driven. Tinnea & Associates staff includes individuals certified by NACE as Cathodic Protection Specialists, Coating Specialists, and Coating Inspectors. Our staff also holds professional engineering licenses in several states including Alaska, California, Oregon, and Washington. Tinnea & Associates and its staff have been the recipients of numerous awards from ASCE, NACE, and Engineering News Record.

Veteran-Owned Business




Our Services

Unlike many corrosion companies, we are not involved in selling corrosion control products. Free of product line considerations, our recommendations are solution driven.




For any inquiries, questions or recommendations, please call: +1(206)328-7872 or fill out the following form

Our Office

35320 SE Center Street

Snoqualmie, Washington 98065

Tel: 206-328-7872

Contact us: +1(206)328-7872

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