Granite Construction Co. 2/26/2026 Change Order 8

Exhibit A Change Order No. 08 Change Order Effective Date: 02/11/2026 Pier 1 Lagging Angle Iron Coating – New Item 226 The Contractor is directed to coat one-half of the L8x8x1 angle irons shown on Plan sheets S51 and S29 with one coat of inorganic rich primer. These are the angles installed for lagging purposes. Compensation for this change will be a lump sum of $662.27. Justification Plan sheets S29 and S51 did not specify any corrosion protection for the angles which are provided to facilitate placement of lagging between the back wall and soldier pile. Contract Time: There is no added contract time due to this change. Added New Rock Wall at Pier 4 – New Item 227 The Contractor is directed to install a new two-tiered terraced gravity rock wall approximately 70’ long with height of 30” for each wall on the property line of 3814 Mukilteo Blvd as directed by the Engineer in the field. The Contractor shall also install: • A new Catch Basin at the toe of the new rock wall and connect drainage lines to it as directed by the Engineer in the field. • Relocate the newly installed 12” HDPE pipe to avoid interference with Pier 1 wingwall. • Extend the HMA limits to the toe of the new rock wall. Compensation for procurement of materials and installation shall be by force account. It is expected to be in an amount of approximately $75,000. Justification Installation of a new wall is necessary to retain the front yard of the property owner and avoid an unprotected sharp drop off which is a safety concern. Other added changes are also necessary to accommodate installation of this new wall. Contract Time: There is no change to the Contract time due to this addition