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29C0022_AABH_2025-APR
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29C0022_AABH_2025-APR
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Last modified
6/5/2025 8:23:06 AM
Creation date
6/5/2025 8:22:33 AM
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Supporting Docs - Bridge
Bridge #
29C-022
Type - Bridge Supporting Doc
Inspection
Name
Grant Line Canal - Tracy Boulevard
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Printed on:Wednesday 05/07/2025 08:05 AM 29C0022/AABH/152630Pageof15 <br />Department of Transportation - Division of Maintenance Structure Maintenance & Investigations <br />19 <br />613 <br />614 <br />615 <br />616 <br />617 <br />Traffic Control Sys - Mechanical <br />Wear(Electrical) <br />Traffic Control Sys - Electrical <br />Support and Elect. Terminations <br />Movable Bridge House - Mech <br />Movable Bridge House - Elect <br />House Electrical Defect <br />Movable Bridge House - Struc <br />2 <br />2 <br />2 <br />2 <br />2 <br />2 <br />2 <br />2 <br />3 <br />2 <br />3 <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 /> 1 <br /> 0 <br /> 2 <br /> 0 <br /> 1 <br /> 0 <br /> 0 <br /> 1 <br /> 0 <br /> 0 <br /> 1 <br /> 1 <br /> 0 <br /> 1 <br /> 1 <br /> 0 <br /> 2 <br /> 2 <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 />9002 <br />9006 <br />9013 <br />MECHANICAL/ELECTRICAL <br />(612) Power System - Electrical <br />(612-9005) Accessibility and Labeling <br />(613) Traffic Control Sys - Mechanical <br />(613-9002) Wear(Electrical) <br />(614) Traffic Control Sys - Electrical <br />(614-9006) Support and Elect. Terminations <br />(615) Movable Bridge House - Mech <br />(616) Movable Bridge House - Elect <br />(616-9013) House Electrical Defect <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 />Utility power is supplied to the bridge house from the north side. Power is provided to the south bascule leaf by means of a <br />submarine cable. Backup power is provided by a generator located off-site. The power supply is 240 Volts AC. <br />Mech/Elect (06/01/2021) There are no arc flash labels on the cabinet. The cabinet is very dusty. <br />Four cabinet sections of the MCC don¿t have door handles/locks to close the cabinet doors. <br />Some components of the power system are old and may soon be phased out by the manufacturer. The components still function <br />normally. <br />(5/8/2023) Condition still present. <br />Double traffic gates are located at near end of the bridge, an advance gate and a traffic gate closer to the center of the span. Each <br />gate has three flashing red lights mounted along the length of the gate arm. The gate arms are actuated by an electric motor and <br />stopped with a brake. There is also a ringing bell on each traffic gate. <br />Mech/Elect (06/01/2021) South Gates: Lever arm and main axle bearings are worn. The brake adjustment of the down stop is loose. <br />North Gates: There is a noticeable failing bearing noise (either motor bearing or gear reducer bearing). Drive machinery needs <br />lubrication--axle bearings, lever arm bearings, and gears. Brake pads are not contacting the brake drums for up and down position- <br />-adjust the limit switches for proper brake pad operation. Gate enclosure is damaged and door hinges are broken. <br />(5/8/2023) Condition still present. <br />Two sets of single traffic gates are located near the north end of the bridge and at Piers 3 and 7, south of the bascule span. Each <br />gate has two flashing red lights mounted along the length of the gate arm. The gate arms are actuated by an electric motor. <br />There is an alarm bell on each traffic gate. <br />There are 2 double flashing signal lights each side of the bascule span. One is mounted on the cantilever arm and one on steel <br />signal pole. <br />Mech/Elect (06/01/2021) The splices for the arm lights are not spliced/sealed properly and are exposed to wet conditions. One light <br />on the south traffic gate arm was not lit. One light on the north gate was not lit. <br />(5/8/2023) Condition still present. <br />The bridge house is a reinforced concrete structure located on the west side of Pier 12. The bridge house contains the control <br />panels and circuitry and provides access to the north bascule pit. <br />The bridge house is a reinforced concrete structure located on the west side of Pier 12. The bridge house contains the control <br />panels and circuitry and provides access to the north bascule pit. <br />(5/8/2023) There are multiple ceiling light coveres in the control house that are missing.
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