Here is the number and percentage of stone arch bridges remaining in Butler County, Kansas that were built by the county with similar statistics for each builder.
Stone bridges are inherently quite heavy. This can sometimes cause foundational or arch problems, prompting designers to come up with ingenious solutions.
Even with a given type of stone, there can be considerable variation. It helps to recognize some basic signs of poor stone to ensure long-term durability.
Regular checking on the progress of any and all deterioration of a stone bridge can allow serious problems to be corrected early, saving future expense and trouble.
We have now added a glossary of stone arch bridge terms to the start menu. This glossary features descriptions, links and even labeled photographs.
We have added two little-known stone culverts to our list of the stone arch bridges of Butler County which we first learned about through newspaper research.
While rubble masonry is considered the lowest class of stone work, it still can be used to make enduring structures and is peculiarly suited to DIY projects.
Squared-stone masonry is a method of building masonry to achieve a highly durable structure without resorting to the difficulty and labor required for ashlar.
Ashlar is the highest grade of stone work, and features extensive stone cutting and tight fitting joints. Ashlar work is difficult, but very durable due to the precision required.
The design of a stone bridge, which often reflects the era of its construction, determines how critical mortar condition is for long-term stability.