PACE provided civil engineering, structural engineering, land surveying, and construction phase services to complete the connection between SR 18 and SR 516 through the new Lakepointe Urban Village in Covington, WA. The project created four single-lane roundabouts, 4,000 LF of arterial expansion, and 5,400 LF of new arterial.

The focal point of our efforts was enhancing roadway connectivity and strategically implementing single-lane roundabouts at key junctures, such as the westbound and eastbound on- and off-ramps at SR 18 and SE 256th Street, to manage increased traffic flow to the new development. These roundabouts optimize access to SR 18, prioritize safety, and minimize maintenance requirements.

PACE’s design makes walkways safer, improves landscapes, manages stormwater sustainably, and installs 850 feet of retaining walls for stability. Our design prioritizes efficient transportation with thoughtful lighting, signage, and intelligent transportation system (ITS) connections. Leveraging grant funding from the Connecting Washington initiative, the City of Covington acquired the necessary right-of-way and construction.

Our innovative stormwater design included a collection and conveyance system with adequate capacity and drainage structure spacing to prevent roadway flooding and improve water quality, including bioretention cells, infiltration galleries, and landscaped buffers. Our structural engineers designed retaining walls for roadside treatment facilities.



Client Name

Transpo Group


Covington, WA


  • Site Design
  • Permitting
  • Construction Management