Check out the smooth surface of this freshly paved section of NE Woodinville Duvall Road above the new concrete box culvert.
September 5, 2023
NE Woodinville Duvall Road is officially open.
We thank the community members for their patience during this major project.
Work to dig out the old, failing culvert began in early August and took several days longer than anticipated to remove, which has caused delays. This photo was taken on Aug. 1. The culvert was eventually fully removed on Aug. 7.
Aug. 23, 2023 – Crews roll over the smooth surface of the freshly paved section of NE Woodinville Duvall Road above the new concrete box culvert.
Aug. 22, 2023 – Trees and rocks fill the downstream section of Tuck Creek leading to the new box culvert. The new culvert and creek habitat restoration is designed to move water through at its natural pace, just like a natural stream.
Aug. 23, 2023 – A view from above the new box culvert shows the safety guardrail with the creek flowing freely below it.
Aug. 10, 2023 - Our team is making progress every day towards reopening NE Woodinville Duvall Road. The culvert concrete is carefully poured between wall sections of the new culvert to secure them in place and prevent leaks.
Aug. 10, 2023 - The walls and floor of the new box culvert are in place. Next up is the concrete lid which will be placed by a crane. Once the culvert is complete, it will be filled with dirt, gravel, rocks, and native plants to make a healthy habitat for fish and other creatures.
Aug. 11, 2023 - An excavator works to ready the new stream bed between the retaining walls on either side of the new box culvert. The bed will be filled with dirt, gravel, rocks, and native plants.
July 31, 2023 - It takes several crewmembers to pour the concrete for the large retaining wall running along NE Woodinville Duvall Road .
August 5, 2023 - A crewmember uses a smaller excavator in the deep construction pit after shoring has been placed to allow for construction of the foundation of the box culvert. The foundation is covered with a thick liner, rocks, and dirt to make a safe passageway for water and fish.
August 4, 2023 - Two large excavators sit at both sides of the large construction pit in the middle of NE Woodinville Duvall Road. This pit makes the road impassible so all travlers need to use the detour route.
August 5, 2023 - A big truck dumps rocks into the bottom of the excavation to construct the foundation for the new box culvert.
Environmental staff are temporarily redirecting fish away from the workzone so that crews can safely install a temporary stream diversion for fish to use during construction. Specialized crews catch and release fish downstream and then install a stream diversion to redirect fish until the project is complete. (Photo July 2023)
Crews install a large four-chamber water cleaning and containment system known as a baker tank. The tank helps to keep the worksite dry and cleans the water around the construction zone. (Photo July 2023)
Crews scrape back multiple layers of old pavement from NE Woodinville Duvall Road before excavators are brought in to dig a large construction pit in its place. (Photo July 2023)
This is the existing metal pipe culvert looking upstream. Most of the year the water moves very fast through the metal pipe into the stream. Over time this high-intensity, swift water created a drop between the culvert and the streambed. This hole prevents fish from being able to jump high enough into the culvert so they can continue to swim further upstream. (Photo May 2019)
A closer look at the existing metal culvert that carries Tuck Creek under NE Woodinville Duvall Road at 172nd Street. This culvert is rusted out along the bottom. (Photo: September 2019)
View of the concrete fishway looking downstream from the existing culvert pipe. This fishway was installed in the 1980’s to help migrating fish. Fish that use this ladder mostly swim upstream. The fishway is considered a partial fish barrier because the far end of the fishway (where fish enter) is too high above the stream. (Photo taken: September 2019)