The bundles in this series are variously comprised of bonds, articles, contracts, specifications, estimates and other associated papers concerned with the building, maintenance and repair of county and joint county bridges. In some instances plans, specifications and sections are also to be found.
The bundles are arranged chronologically and extend in time from 1695 to c.1884. The name of the bridge as it appears in the documents, the parish in which the bridge is located, the river spanned and the type of document provide the further heads under which the bundles are described. A topographical index to the bundles is located at the end of the list.