Sept. 30 - The soil nail wall under the east side of the NE 124th bridge - crews are placing steel grids on the front of the wall and will pour concrete to form a face on the wall that will cover the protruding ends of the soil anchors. See the photo of this wall earlier this month further down the page.
Sept. 29 - In the foreground is the northbound I-405 on-ramp from westbound NE 124th. This ramp was closed for seven weeks to realign and lower the ramp and build retaining walls in this area. The photo above was taken the day before we reopened the ramp to traffic. If you view this July photo you can see a dramatic difference in the height of the ramp.
Sept. 22 - Excavating for the second NE 128th bridge support, on the west side of I-405.
Sept. 19 - Workers grapple with huge steel cages. These will reinforce columns that will support additional width of I-405 over NE 132nd.
Sept. 16 - Construction is coming along on the NE 128th bridge support on the east side of I-405.
Sept. 16 - Crews placed fabric mats to prevent erosion on this slope near where we're building the east support for the new NE 128th bridge. Seeding the area will also help control erosion.
Sept. 16 - Yet another type of wall: for this one, we place fabric in the excavation, then we place wire baskets (see upper right of this photo) and fill them with large rock on the outside and small rock in the inside. This will allow water to flow through the wall instead of washing it out.
Sept. 15 - The new retaining wall which will run along the re-aligned northbound on-ramp from westbound NE 124th.
Sept. 15 - This photo shows the same location as the photo directly below (Sept. 9), but now we've poured concrete over the steel. Crews cover the wet concrete with plastic to help it set properly.
Sept. 9 - Steel installed at the NE 124th bridge over the northbound exit to Totem Lake Blvd. We're widening this portion of the bridge to realign the northbound on-ramp from westbound NE 124th.
Sept. 9 - The soil nail wall under the NE 124th bridge. We build this type of wall from top to bottom (excavating, inserting anchors, placing concrete, and excavating some more). This will make room to widen I-405 under the bridge.
Sept. 1 - (looking northeast) Setting falsework (temporary construction supports) to widen the NE 124th bridge (above the northbound exit to Totem Lake Blvd.). See nighttime work at this location on August 31.