The Historic Landmark Milwaukee City Hall was constructed in 1895. The building is 350 feet all at its highest point and the exterior is constructed from a combination of sandstone, granite, and terra cotta. The building has undergone multiple renovations since its inception including a two year facade restoration project completed in 2014.
ZS was retained to perform 3D laser scanning (LiDAR) as part of a long term facade monitoring program for the City Hall. The project involves laser scanning the exterior at periodic intervals and utilizing the data to remotely monitor movement through state-of-the-art plane and cloud-to-cloud deviation analysis.
The scope of work for this project included:
- Laser scanning from ground level and roofs of adjacent buildings.
- State-of-the-art plane and cloud-to-cloud deviation analysis of scan data.