Verdantas provided civil engineering design, land surveying, and construction inspection for 4,400 LF of water main improvements along Macadam Road South, including ductile iron pipe installation, fire hydrants, service connections, system appurtenances, and roadway restoration. Our services included topographic surveying, basemap production, engineering, and the development of plan and profile drawings for new water mains, curbs, gutters, and sidewalks, along with specifications and bid documents, and public outreach.

During the project, the City of Tukwila received grant funding to extend sidewalks under the Safe Routes to Schools program, which required piping the roadside ditch and redirecting the runoff. Our team engineered regrading portions of the roadway to optimize drainage and incorporated additional drainage elements, road reconstruction, street parking, and wetland buffer mitigation to support the new sidewalk construction.

Project Features:

• Water Main Design
• Storm Drainage Design
• Wetland Buffer Mitigation
• Road Reconstruction
• Pedestrian walkways and sidewalks
• Construction Inspection
• Topographic Survey
• Public Outreach