Sharraxaadda

The sidewalk around 214 - 218 3rd st. has been fenced off for construction and the barricades that were put up for the alternate sidewalk are now pushed to the side of the street and there are no "no parking" signs so cars park there. It is also unsafe to walk in that area because the contractors destroyed the foundation to the adjoining house and it is going to collapse. The contractors were shut down so no one is ever there to take care of the lot. Who can I call to help in this situation.