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Printed on:Wednesday 05/28/2025 06:29 AM 29C0108/AABF/149448Pageof9 <br />Department of Transportation - Division of Maintenance Structure Maintenance & Investigations <br />11 <br />605 <br />606 <br />607 <br />608 <br />609 <br />610 <br />611 <br />612 <br />Drive System - Electrical <br />Control System - Mechanical <br />Control System - Electrical <br />Interlocking System - Mechanical <br />Interlocking System - Electrical <br />Pier Protection - Structural <br />Nav Guidance System - Electrical <br />Operation <br />Power System - Electrical <br />2 <br />2 <br />2 <br />2 <br />2 <br />2 <br />2 <br />2 <br />2 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />ea. <br />ea. <br />ea. <br />ea. <br />ea. <br />ea. <br />ea. <br />ea. <br />ea. <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 0 <br /> 0 <br /> 1 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 1 <br /> 1 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br /> 0 <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 />9000 <br />MECHANICAL/ELECTRICAL <br />(604-9001) Lubrication <br />(605) Drive System - Electrical <br />(606) Control System - Mechanical <br />(607) Control System - Electrical <br />(608) Interlocking System - Mechanical <br />(609) Interlocking System - Electrical <br />(610) Pier Protection - Structural <br />(611) Nav Guidance System - Electrical <br />(611-9000) Operation <br />(612) Power System - Electrical <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 />Non-Routine Inspection Element Notes: <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 />Non-Routine Inspection Element Notes: <br />Non-Routine Inspection Element Notes: <br />Non-Routine Inspection Element Notes: <br />Mech/Elect (06/01/2021) There is no indication when the main gearbox oil was last replaced. <br />According to the writing on one of the Right Angle Gear Reducers, the oil was last changed 3/5/14. The gearbox oil should be drained <br />and replaced. Check the manufacturer's recommendations for gear oil type and replacement interval. <br />The ring gear teeth are dry and show signs of corrosion. <br />There is no indication when the hydraulic fluid was last replaced and the filters changed on the end jack hydraulic systems. Drain and <br />replace the hydraulic fluid and filters and write the replacement date on the pump reservoirs. <br />(5/8/23) Conditions still present. <br />The electrical drive system consists of a main drive motor located with an eddy current clutch, center wedge motors, and hydraulic <br />motors to operate the bridge jacks. There are also machinery brakes that help stop the movement of the span. <br />The mechanical bridge control systems consist of the main drive motor encoder various lever actuated limit / indicating switches, and <br />the hydraulic fluid control valves. <br />Bridge control systems are located in in the bridge house on the north side of Span 22. The control system consists an on-operator <br />desk that controls both traffic equipment and span operation. <br />See drive system element information <br />The interlocking system consists of limit switches that regulate the sequence of the traffic equipment and movable span operation. <br />The pier protection consists of timber fenders with skip sheathing on each side of Span 22. The fenders appear in good condition <br />and there was no drift accumulating at the fenders or the piers. <br />Navigation lights required by Coast Guard regulation are mounted at each end of the swing span and on the upstream and <br />downstream ends of the fender system under Span 21. <br />Mech/Elect (06/01/2021) Multiple navigation lights are burned out and need replacement. <br />(5/8/23) Condition still present. <br />Utility power is delivered to the east side of the bridge. Power to the swing pier is provided by means of a submarine cable. Backup