Construction in front of my house has ruined our grass and sidewalk. What can I do?

I live in Houston and I live in an area with heavy new construction. There are 6 townhomes being built across the street from me. About two months ago, they had to dig a huge hole in front of our street in order to connect the water line to their new construction. They had to break the sidewalk and tear the grass off. The waterline has now been connected and they have not fixed our side of the street. They have added cement and new grass to their new construction and have told us they will not fix our side. Our side of the street has tons of shade so they also park on our side and now they have proceeded to add cones so they can park. I have called 311 to see what can be done. The neighbors and I are worried since the damage done will be costly as we will need to buy new grass to get this fixed. What can we do about this?