working in construction, it might not be for you. as exciting as this is, critical infrastructure like this bridge only accounts for 5% of the spending. 95% is left for everything else. that everything else includes 20th century improvements that you might not expect, like high-speed internet changes and roads for cars. infrastructure hasn't always helped everyone, especially those who live in the shadows as some worry about this new bridge in los angeles. >> this is going to be an iconic bridge. >> reporter: city engineer gary lee moore invited us here, to the top of l.a.'s viaduct that cost a million dollars and was paid for before biden proposed his plan. the bridge will connect the arts district in l.a. with a latino