Upgrade your HO scale streets and highways with the Walthers 933 - 4566 Cornerstone Modern Concrete Highway Overpass kit. It's full of realistic details and easy to build. These prototypes are commonly found on high - speed and heavy - traffic routes. Key features include: authentic pre - stressed concrete design seen across North America, suitable for highway scenes from the 1960s to now, round and square support columns in short and tall styles, can be built as single or double span and easily combined with other kits (sold separately), simple to install in new or existing layouts, detailed abutments with molded cut lines for customization, and parts molded in concrete gray.

Using this Walthers 933 - 4566 HO scale highway overpass kit is a breeze. First, you can choose to build it as a single or double span according to your needs. You can also combine multiple kits for a larger assembly. Install it in your new or existing layout scenes easily. Just place the parts where you want them in the scene. When it comes to the support columns, pick the round or square ones, and short or tall styles based on whether you need to clear a railroad or highway below. For customizing, use the molded cut lines on the detailed abutments. As for maintenance, keep it in a dry place to avoid any damage to the concrete - gray molded parts. Make sure to handle the parts gently during installation and storage to prevent breakage.