The piers at the abutments have rusticated facings. Multi-span bridges require piers to support ends of spans unsupported by abutments. Multi-span bridges require piers to support the ends of spans between these abutments. Crowns and bridges require a precise fit on tooth abutments or stumps. Its four arched ribs are supported on massive masonry abutments. There are also four smaller non-navigable channels between nine concrete piers and two abutments. It can be used for retaining walls, bridge abutments, seawalls, and dikes. These are usually called prosthetic implant abutments. Bars function to connect the over denture to the splinted abutments. The lower courses of ashlar on the bridge abutments and central pier were vermiculate. Two bridges and their abutments are also being raised. Some slabs were placed over the abutments and intermediate stone pillars when necessary. The original structure was a wooden trestle made of yellow pine upon stone abutments. This type of damage typically occurs with single-span bridges with vertical wall abutments. Vital teeth are preferred to endodontically treated ones for bridge abutments.