16th Avenue SW: SW 100th Street to SW 107th Street Pedestrian Safety Improvements & Traffic Calming Project
Thank you to the hundreds of community members who took our project survey. The survey ran from Feb. 4 through March 23, 2022. The survey results and general comments received will be used to help us choose the road design that best meets the needs of the community. We will post the final survey results to this website in April or May. The final project design is expected to be complete in late 2023, construction is scheduled to begin in summer 2024.
This project will make it safer for people to travel along 16th Avenue SW between SW 100th Street and SW 107th Street in White Center. King County will add safer street crossings, clearer signs and road improvements to help reduce speeding. The project also adds more on-street parking for people in the neighborhood.
Why is this project needed?
16th Avenue SW is an important road for people walking, biking, and driving. However, the existing road is built more for car traffic than people walking or biking. We are focusing on this section of 16th Avenue SW to calm traffic and make it safer for everyone. This busy section of 16th Avenue SW has more than 22 collisions involving pedestrians have been reported between 2011 and 2020. Traffic studies have shown that the types of safety improvements included in this project can reduce the number of collisions by up to one-third.
Higher speeds can result in more collisions with pedestrians
Roads with one travel lane in each direction and one center turn lane down the middle have slower, calmer traffic, which is especially important for pedestrians and people biking. The risk of injury and death to these users decreases as vehicle speeds decrease.
Fewer travel lanes make it safer to cross the street and allow room for sidewalk curb extensions and buffered bicycle lanes.
Sidewalk curb extensions reduce the crossing distance for pedestrians in the crosswalk.
Buffered bicycle lanes provide a dedicated place for non-motorized traffic.
Contact usBroch Bender, Communications Manager
Safety improvements coming to 16th Avenue SW
This project will calm traffic and improve pedestrian safety by providing the following:
One lane in each direction
Helps prevent speeding by slowing down traffic and makes crossings safer for people walking.
Center turn lane
Provides a safer place for drivers to make left turns. This allows traffic to move freely in the main travel lane.
Sidewalk curb extensions at SW 104th Street and SW 106th Street intersections
There are no traffic signals at these two intersections to stop traffic. Sidewalk curb extensions will help drivers see people walking in the crosswalk. The extensions also shorten the distance people need to cross.
New pedestrian crossing signs at intersections that do not have a traffic signal
High-visibility signs alert drivers when pedestrians are crossing 16th Avenue SW at SW 104th and SW 106th Street.
On-street parking with a buffer next to parking lane
All on-street parking will have a minimum 2-foot-wide buffer separating the parking lane from the vehicle lane.
Design options for 16th Avenue SW between SW 100th and SW 107th streets
King County will choose one of two design options shown below. Both options will calm traffic and make it safer for people on foot. We conducted community outreach in winter 2022 to help us select the option that best meets the needs of the community. The project team is actively reviewing comments and questions received during our winter community outreach campaign. The team will incorporate one of two options into the final project design. The final design will be presented to the community in 2023.
Winter 2022 community outreach included: 4,000 postcards to local residences, businesses and organizations; an online project survey (870 responses);more than 50 in-person and online meetings with businesses, community partners, King County Council and local residents; 6 articles in local blogs and newsletters; several social media posts on Twitter, Facebook and Instagram.
Option 1: Bike lanes in both directions; northbound parking lane
- Adds 19 more curbside parking spaces between SW 100th and SW 107th on northbound 16th Avenue SW.
Total of 53 curbside parking spaces between SW 100th and SW 107th on 16th Avenue SW.
- Bicycle lanes on both sides of 16th Avenue SW
Includes buffer space between bike lanes and travel lanes.
- Two-foot buffer space between bike lanes and vehicle travel lane
More space for people on bikes and other forms of active transportation, help riders avoid moving cars and opening doors of parked cars.
Option 2: No bike lanes; buffered parking on both sides
- Adds 39 curbside parking spaces on both sides of 16th Avenue SW
Total of 73 total spaces between SW 100th and SW 107th streets in 16th Avenue SW.
- Four (4)-foot buffer space between parking lane vehicle travel lane
Provides room between moving vehicles and people getting in and out of parked vehicles.
- No bicycle lanes
People on bikes share lanes with motor vehicles.
Included in both options
- Restripes roadway between SW 100th and SW 107th streets.
- One travel lane in both directions.
- One center turning lane.
|FEATURES||OPTION 1||OPTION 2||EXISTING ROADWAY|
|Buffer space between moving traffic and parked vehicles|
|Sidewalk extensions at two intersections: SW 104th and SW 106th|
|One lane in each direction|
|Center turn lane|
|Two lanes in both directions|
King County received a $862,200 Highway Safety Improvement Program grant and has set aside an additional $95,800 in local funds for the project.
- Preliminary design complete: Late 2021.
- Initial public outreach and comment period complete: Early 2022.
- Final design complete: Late 2023.
- Ongoing public outreach: Late 2022 through 2024.
- Project complete: Late 2024.
Frequently asked questions
- Countdown pedestrian signal heads will let pedestrians know how much time remains to cross the intersection
- Audible messaging will inform pedestrians which crossing has a “walk”
- Vibration and tactile surfaces at crosswalks and intersections will also inform pedestrians which crossing has a “walk”
- High visibility pedestrian safety signs make it easier for drivers to know when to expect pedestrians
- Accessible ramps help people with disabilities, people pushing strollers, and others, access the crosswalk