Central Oregon’s largest construction project may see a lot of activity starting Tuesday.  They hope to pave a four-mile section with the top layer on the Lava Butte Project just south of Bend. ODOT's Peter Murphy says the weather will direct the schedule: "What we're hoping for right now is a stretch of sunny weather so we can start putting on what we call the top lift down on the highway itself and that way we'll be able to open up one lane. It has to be 40 degrees minimum, and totally dry. So obviously it's been a little wet lately, but its just starting to break.”  When finished, the large project will make a noticeable difference in the trip between Bend and Sunriver. $12 million of the $16 million came from the stimulus plan.