HM Pacific Northwest Inc. 5/18/2023

1 WSDOT's Predetermined List for 1 Suppliers - Manufactures - Fabricator Below is a list of potentially prefabricated items, originally furnished by WSDOT to Washington State Department of Labor and Industries, that may be considered non- standard and therefore covered by the prevailing wage law, RCW 39.12. Items marked with an X in the "YES" column should be considered to be non-standard and therefore covered by RCW 39.12. Items marked with an X in the "NO" column should be considered to be standard and therefore not covered. Of course, exceptions to this general list may occur, and in that case shall be evaluated according to the criteria described in State and L&I's policy statement. I ITEM DESCRIPTION YES NO 1, Metal rectangular frames, solid metal covers, herringbone grates, and bi-directional vaned grates for Catch Basin X Types 1, 1 L, 1 P, and 2 and Concrete Inlets. See Std. Plans I 2. Metal circular frames (rings) and covers, circular grates, and prefabricated ladders for Manhole Types 1, 2, and 3, X Drywell Types 1, 2, and 3 and Catch Basin Type 2. See Std. Plans 3. Prefabricated steel grate supports and welded grates, metal frames and dual vaned grates, and Type 1, 2, and X 3 structural tubing grates for Drop Inlets. See Std. Plans. 4. Concrete Pipe - Plain Concrete pipe and reinforced concrete pipe Class 2 to 5 sizes smaller than 60 inch diameter. X 5. Concrete Pipe - Plain Concrete pipe and reinforced concrete pipe Class 2 to 5 sizes larger than 60 inch diameter. X I 6. Corrugated Steel Pipe - Steel lock seam corrugated pipe for culverts and storm sewers, sizes 30 inch X to 120 inches in diameter. May also be treated, 1 thru 5. 7. Corrugated Aluminum Pipe - Aluminum lock seam corrugated pipe for culverts and storm sewers, sizes 30 inch to 120 inches in X diameter. May also be treated, #5. I i Supplemental to Wage Rates 2 03/03/2023 Edition, Published February 6, 2023