Those 'bricks' are not bricks at all. The bridge is a blank canvas of plain concrete, and a very talented local artist, William Cochran, along with his team of other talented artists, created the Community Bridge. The painting surface has 3,000 square feet with over 3,000 simulated stones.
In the next photo you will see a very beautiful fountain.
According to the website, several times birds have been observed attempting to alight on the fountain.
My thanks to the website where I have found most of my information - link here - and a short history of this amazing painting technique.
I will have another post on these murals.