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Printed on:Monday 03/24/2025 11:55 PM 29C0131/AABH/149249Pageof8 <br />Department of Transportation - Division of Maintenance Structure Maintenance & Investigations <br />13 <br />215 <br />220 <br />228 <br />256 <br />Abutment-RC <br />Pile Cap/Footing-RC <br />Scour <br />Pile-Timber <br />Slope Protection <br />2 <br />2 <br />2 <br />2 <br />2 <br />24 <br />12 <br />12 <br />1 <br />3 <br />m <br />m <br />each <br />ea. <br />ea. <br /> 24 <br /> 0 <br /> 0 <br /> 1 <br /> 3 <br /> 0 <br /> 12 <br /> 12 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br />SUBSTRUCTURE ELEMENT INSPECTION RATINGS AND NOTES <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br />6000 <br />SUBSTRUCTURE <br />SUBSTRUCTURE RATING =(60)(5) <br />(210) Pier Wall-RC <br />(210-1190) Abrasion (PS Conc./RC) <br />(215) Abutment-RC <br />(220) Pile Cap/Footing-RC <br />(220-6000) Scour <br />(228) Pile-Timber <br />(256) Slope Protection <br />Element DescriptionElem <br />No. <br />Env Total <br />Qty <br />Units <br />CS 1 CS 2 CS 3 CS 4 <br />Qty in each Condition StateDefect/ <br />Prot Defect <br />There were no significant defects noted. <br />The pile element is included to indicate the presence of piles on this structure. The piles at Abutments 1 and 2 and at Pier 2 were not <br />exposed for visual inspection. No indication of pile distress was noted in any substructure element. <br />There were no significant defects noted. <br />Non-Routine Inspection Element Notes: <br />Non-Routine Inspection Element Notes: <br />Non-Routine Inspection Element Notes: <br />Non-Routine Inspection Element Notes: <br />UWI (08/31/2020): The quantity of this element has been revised from 29 m to 10 m to reflect the 10 m (33 ft) width of the Pier 2 wall. <br />UWI (08/31/2020): The pier wall has abrasion exposing course aggregate in the tidal zone. 33 ft (10 m) in CS2. <br />UWI (08/31/2020): The quantity of this element has been revised from 37 m to 12 m to reflect the 12 m (40.5 ft) width of the 1998 <br />tremie seal. <br />UWI (08/31/2020): There is an exposed edge of the pile cap at Pier 2 that is 0 to 4.5 feet vertically with no undermining. 40.5 ft (12 m) <br />in CS2. <br />600 <br />601 <br />602 <br />Support System - Structural <br />Support System - Mechanical <br />Balance System - Structural <br />2 <br />2 <br />2 <br />1 <br />4 <br />1 <br />ea. <br />ea. <br />ea. <br /> 1 <br /> 4 <br /> 1 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br />MECHANICAL/ELECTRICAL ELEMENT INSPECTION RATINGS AND NOTES <br />MECHANICAL/ELECTRICAL <br />(600) Support System - Structural <br />(601) Support System - Mechanical <br />(602) Balance System - Structural <br />Element DescriptionElem <br />No. <br />Env Total <br />Qty <br />Units <br />CS 1 CS 2 CS 3 CS 4 <br />Qty in each Condition StateDefect/ <br />Prot Defect <br />Non-Routine Inspection Element Notes: <br />Non-Routine Inspection Element Notes: <br />The structural support system consists of the end and center wedges and live load shoes, centering locks at each end of the bridge, <br />and center balance wheels at the pivot pier. <br />The mechanical support system consists of four systems. The center pivot bearing, end wedges, centering pins, and the center <br />wedges. <br />The center bearing consists of a pivot base casting, upper pivot casting, upper bearing disc, lower bearing disc, and retainer ring. All <br />the weight of the swing span is supported by the center bearing during operation. <br />There are two end wedges with live load shoes at each end of the swing span to support the bridge for traffic. Each set of wedges <br />is driven by a single gear motor with built in brake, located on the rest pier. The wedges are pulled and driven via a series of gears, <br />and cam linkages. <br />Centering pins are located at the middle of each rest pier and are actuated through mechanical linkage with the end wedges. <br />Center wedges are located at the center pier and are operated with the single gearmotor via open gears and mechanical linkages.