Logistically, you might wonder how they can keep the path open during construction. Fortunately, there are two bike paths parallel to each other, one on each side of the creek. And so, except for the week they demolished the old bridge, they have been able to keep at least one path open. Because of this, I have had to budget a few extra minutes because day to day, I never know which path will be open and one is a slight longer trek (but nothing extraordinary). But in my opinion, that is a small price to pay to watch the building of this bridge.
Here are some photos from about 3 weeks ago:
The columns supporting the bridge are made from poured concrete. First, they build an internal frame with green metal rods and place them. Then they build a wood frame around it. (In the first picture you can see they are doing that to prepare for pouring the top cross beam.) Then they pour the concrete. The four columns were built start to finish in only about 2 days.
Here is a photo from about 1.5 weeks ago:
As you can see, they had finished the top cross beam.
This past Wednesday overnight into Thursday, they placed the metal support beams. Here is a photo:
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