2008 Arterial Asphalt & Concrete Program
This project is part of the “Bridging the Gap” transportation levy approved by Seattle voters in November 2006.
The project includes removal and replacement of asphalt pavement, repair of concrete or brick base beneath the asphalt, construction of concrete bus pads and new or upgraded curb ramps to meet current standards.
To encourage bicycle commuting, this project will also add shared roadway markings, called sharrows; replace many curb inlet grates with “bicycle friendly” grates that will not trap bicycle tires; and add traffic signal detector loops that will detect bikes and vehicles waiting for traffic signals. In addition, sidewalks will be added in sections where they are currently missing to improve pedestrian connections. After paving is completed, street tree planting, signal and ITS improvements will be coordinated by SDOT Urban Forestry and Signal Operations.
In addition, curb lanes in both directions between W. Harrison and W. Armour streets are being converted to Business Access and Transit (BAT) lanes. In general, BAT lanes are reserved for vehicles intending to turn right at the next signaled intersection (or beforehand, into a business driveway) and for those vehicles merging left after turning into a BAT lane. King County Metro transit vehicles are permitted to pass through signaled intersections without turning right (as are bicycles), but other vehicles may be ticketed for doing so. Parking is allowed in the curb lane for most of the day, but the right-hand turn requirement is in effect at all hours.
The BAT lanes are expected to directly benefit the nearly 10,000 bus riders that ride through the area each day with minimal disruption to non-bus traffic. By installing BAT lanes during the paving project now, instead of later, the City and Metro saved significant expense and disruption that would have been required to change the pavement markings in the future.
After paving is completed, street tree planting, signal and ITS improvements are being coordinated by SDOT Urban Forestry and Signal Operations. SDOT is adjusting the timing of traffic signals as needed to maintain or improve the flow of traffic in all lanes.
The work will be done in phases.
Initial work will start in the northbound lanes of the east half of Elliott Ave W at Denny and move north to W Lee Street.
Once the contractor has completed work in the northbound lanes, work will commence in the southbound lanes of the west half of 15th Ave W near the Ballard Bridge and move southward.
Work elements include pavement grinding, curb and sidewalks, pavement base repair, drainage grates, signal detectors, new pavement overlay, and pavement markings for lane configurations, including Business Access and Transit (BAT) lanes.
What to Expect During Construction