We’re making 16th Avenue SW safer for pedestrians, cyclists, and drivers. That means better crossings, clearer signs, and new lane markings. Before we can do that, we need to replace an old drainage pipe beneath SW 104th Street at 16th Avenue SW.
This work must happen first so we can move forward with the bigger safety improvements this summer.
Sign up for Road Alerts to get emails or text messages about this project and others in White Center.
Construction starts on Monday, March 3 and lasts through mid-April 2025
Construction will last about six weeks in three phases. Expect detours, temporary road closures, and no-parking zones at different times. Businesses will remain open! The anticipated construction dates below are subject to change due to crew or material availability.
Phase 1: March 3 – April 18

- Where: SW 104th Street Between 15th Avenue SW & 16th Avenue SW
- What’s happening: Replacing drainage pipes under the north side of the road
- Impact: Limited parking for duration of the project, lane restrictions
- Access: Local access will be open, and businesses will remain open
Phase 2: March 11 – April 1 – Intersection Closure at 16th Avenue SW & SW 104th Street

- Where: The north half of the intersection where 16th Avenue SW meets SW 104th Street will be closed to all through traffic, including pedestrians and bikes.
- What’s happening: Pipe replacement under the intersection
- Impact: The intersection will be fully closed for two weeks. More time may be needed, depending on weather and equipment availability.
- Access: Local access will be maintained on 16th Avenue SW on both sides of the road closure, and businesses will remain open
Detour route:
- Northbound (toward SW Roxbury St.): SW 102nd St → 15th Ave SW → 16th Ave SW
- Southbound: (toward SW 107th St.) SW 106th St → 15th Ave SW → 16th Ave SW
Phase 3: April 2 – April 18 – Limited Parking on SW 104th Street

- Where: SW 104th Street between 16th Avenue SW & 17th Avenue SW
- What’s happening: Final pipe replacement under the road
- Impact: Limited parking for 1-2 weeks
- Access: Local access will be maintained, and businesses will remain open
