Total Closure of SR 9 South of Maltby Road: September 29 to October 2
Crews installed a new culvert at Cutthroat Creek, just south of the intersection of SR 9 and Maltby Road. The new culvert will cut down on winter flooding where SR 9 crosses Cutthroat Creek. On average, 275 gallons per minute (GPM) flow through this culvert. In the winter, that rate can exceed 18,000 GPM, causing flooding and property damage along SR 9. The new culvert measures over 15 feet wide, 10 feet tall, and 83 feet long, and is designed to handle much higher volumes of water.
In addition, the new corrugated metal culvert will improve the fish habitat at this site. The new, wider culvert slows the flow of the creek, making it easier for fish to travel upstream. It is also lined with three feet of cobbles and small boulders, which helps create natural eddies and currents for fish migration and spawning.
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Total Closure of State Route 9 North of Woodinville - June 23 to 26
Crews installed a 166-foot-long section of local sewer line under the roadway. King County's Wastewater Treatment Division is funding the project, which is needed to increase capacity in an existing sewer line. WSDOT is managing the installation of the line because it is taking place within WSDOT's SR 9 widening project.
Crews closed SR 9 to install a sewer line under the roadway.
The new pipe is 166-foot long and is part of a nearby wastewater treatment facility.
Monday, June 26, 2006 - 4:30 a.m.
Crews opened all lanes at 4 a.m. Monday, June 26. The work is complete.
Sunday, June 25, 2006 - 6:15 p.m.
Drivers will see no visible work from the road tonight as concrete continues to cure. Flaggers will be on the road helping direct drivers to the detour route until tomorrow morning when crews hope to have SR 9 through Maltby open to traffic.
Sunday, June 25, 2006 - 3:15 p.m.
Crews are still optimistic that the concrete will cure enough for the Monday morning commute. However, the concrete will not be ready for paving tonight, so crew installed temporary steal plates over the ditch. The steel plates will allow drivers to use State Route 9 until paving can be rescheduled for another night.
Sunday, June 25, 2006 - 1:30 p.m.
Crews have placed temporary steel plates over the trench, and are still waiting for concrete to cure. Sweeping crews have arrived and are clearing gravel, dirt and other debris from the roadway. Crews are opportunistic that the roadway will open at 5 a.m., in time for the Monday morning commute.
Sunday, June 25, 2006 - 10:30 a.m.
Crews are still waiting for the concrete to cure. Sweeping crews will arrive at 2 p.m. to begin sweeping up any loose gravel on the roadway. Crews report minimal backups in the area, but encourage drivers to check the SR 9 Widening project traffic cameras for current traffic conditions before they leave the house.
Sunday, June 25, 2006 - 6:30 a.m.
Concrete crews arrived at 6 as promised and are hard at work pouring concrete into the trench. This will continue for about three or four hours. It takes several hours for the concrete to harden and achieve enough strength to pave over it. Our contractor estimates it will take about eight hours for the concrete to set up after it is poured. There won't be a lot of visual activity at the site while the concrete is curing. It's a lot like watching paint dry. If the concrete sets up on schedule we should be paving by tonight.
Saturday, June 24, 2006 - 9 p.m.
The walls of the trench have been secured with temporary steel panels and crews are monitoring the ground water to make sure it doesn't compromise the walls. Concrete crews are scheduled to begin filling the trench with concrete beginning at 6 a.m. Sunday. They are not sure how long this operation will take since the process of adding concrete while simultaneously removing the steel panels is a tricky operation.
Once the trench has been backfilled with concrete, the paving crews will arrive and start paving over the trench and rebuilding the road.
Saturday, June 24, 2006 - 7:00 p.m.
Crews have installed the pipe across the roadway well ahead of their 8 p.m. goal. The pipe now extends 120 feet. They will spend the remainder of the evening setting steel sheets inside the trench and cleaning up the site in preparation for the backfilling work that will begin at 6 a.m. tomorrow. Once backfilling is complete, crews can repave the roadway.
The remaining 46 feet of pipe will be installed Monday. This work will be off-road and will not affect traffic.
Traffic is light and drivers should allow ten minutes to get through the detour.
Snohomish County residents still heading to the Kenny Chesney concert at Qwest Field can take US 2 to I-5, I-405 southbound to SR 520 or I-90. Westbound I-90 at 4th Avenue S. is no longer congested. Traffic on southbound I-5 slows from NE 85th to the Ship Canal Bridge.
Saturday, June 24, 2006 - 5:20 p.m.
Snohomish County residents heading to the Kenny Chesney concert at Qwest Field should take US 2 to I-5 or I-405 southbound to SR 520 to I-5. I-405 southbound to I-90 is not the best option because the traffic is bumper to bumper on westbound I-90 from 4th Avenue S. to 12th Avenue S. Traffic slows on I-5 southbound at Northgate. Once drivers reach the Ship Canal Bridge, normal freeway speeds resume.
Saturday, June 24, 2006 - 4:15 p.m.
Work is progressing quickly. Crews expect to have the pipe completely installed across the roadway by 8 p.m. tonight.
Traffic volumes are lower now so drivers can expect to get through the detour in less than ten minutes.
Saturday, June 24, 2006 - 3:15 p.m.
Crews have connected 100 feet of pipe for the sewer line. Only 66 feet of pipe remains to install. We are now well past the halfway point. Work continues without a hitch and right on schedule.
Saturday, June 24, 2006 - 2:10 p.m.
Crews have connected 80 feet of pipe for the 166-foot-long sewer line. Work is on schedule.
Traffic on the detour route is improving. Drivers can expect two- to five-minute delays between Paradise Lake Road and Maltby Road. The detour route should take about 10 to 15 minutes for drivers to get through.
Saturday, June 24, 2006 - 12:30 p.m.
Drivers can expect eight-minute delays as they travel between Paradise Lake Road and Maltby Road on the detour route. As of 12:15 p.m. Saturday it was taking drivers about 15 minutes to travel the entire detour route. Drivers should plan ahead and budget an extra 10 to 20 minutes into their trips at the very least if they plan on taking the detour.
Saturday, June 24, 2006 - 11:15 a.m.
Crews are nearly done digging the trench and have connected 60 feet of pipe for the 166-foot-long sewer line. Sealing the joints at the pipe connections is taking a bit longer than expected, but work is on schedule. Traffic along the detour route is doing well, but drivers are encountering five-minute delays between the SR 522 Paradise Lake Road exit and the intersection of Yew Way and Maltby Road on SR 524. Washington State Patrol troopers are helping to move traffic through that area.
Saturday, June 24, 2006 - 7 a.m.
Good soils and dry weather helped crews make steady progress on digging the trench for the new 166-foot-long sewer line. They will continue digging throughout today. They didn't run into any high ground water or any unknown materials under the surface, so crews expect to make good progress today.
Wednesday, June 21, 2006
WSDOT and Wilder Construction staff reviewed weather forecasts and decided to move forward with construction this weekend.
Thursday, June 22, 2006
WSDOT and Wilder Construction crews are preparing for weekend construction. They are reviewing construction schedules and contingency plans, staging equipment and materials and alerting drivers about the upcoming SR 9 closure.
Friday, June 23, 2006
WSDOT and Contractor Wilder Construction plans to close SR 9 at 233rd Place SE starting at 10 p.m.
During the closure, traffic will follow a signed detour route using SR 522 and SR 524 (Maltby Road). Drivers should expect delays and plan accordingly.
Monday, June 26, 2006
Crews will reopen SR 9 by 5 a.m.