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<br /> Project:California Street Overcrossing Project
<br /> Change Order No.4
<br /> Change Order Effective Date:August 8,2003
<br /> Item#4-Extra Depth Sanitary Manhole Type II,96"Diameter. Delete linear feet of extra depth
<br /> sanitary sewer manhole,Type II,96"diameter,from the contract.
<br /> Item#6-Shoring or Extra Excavation,Class B. Add additional square feet of shoring or extra
<br /> excavation,Class B,to the contract.
<br /> Exhibit B —Justification
<br /> Work Order 2923 A
<br /> Item# 3-Removal of Structure&Obstruction. Original estimated quantity and breakdown was not
<br /> required which reduced the quatity of the contract.
<br /> Item# 4-Sawing Pavement. Original estimated quantity of sawing pavement was exceeded during
<br /> construction.
<br /> Item# 6-Removing Cement Concrete Sidewalk.Original estimated quantity of removing cement
<br /> concrete sidewalk was not required during construction.
<br /> Item# 7-Removing Existing Asphalt Concrete Pavement.Original estimated quantity of removing
<br /> existing asphalt concrete pavement was exceeded during construction.
<br /> Item# 8-Removing Existing Concrete Curb&Gutter. Original estimated quantity of removing
<br /> existing concrete curb and gutter was not required during construction.
<br /> Item#12-Remove 16"Ductile Iron Pipe. Original estimated quantity of removal of 16"ductile iron
<br /> pipe was not required during construction.
<br /> Item#13-Remove 8"Sanitary Sewer Pipe.Original estimated quantity of removal of 8"sanitary sewer
<br /> pipe was not required during construction.
<br /> Item#16-Roadway Excavation,Including Haul.Original estimated quantity of roadway excavation,
<br /> including haul,was not required during construction.
<br /> Item#17-Gravel Borrow,Including Haul. Original estimated quantity of gravel borrow,including haul,
<br /> was not required during construction.
<br /> Item#18-Catch Basin,Type A. Original estimated quantity of catch basins,Type A,was exceeded
<br /> during construction.
<br /> Item#19-Catch Basin,Type II,48-Inch Diameter. Original estimated quantity of catch basins,Type II,
<br /> 48-inch diameter,was not required during construction.
<br /> Item#20-Catch Basin,Type II,54-Inch Diameter. Original estimated quantity of catch basins,Type II,
<br /> 54-inch diameter,was not required during construction.
<br /> Item#21 -Storm Sewer Pipe,8-Inch Diameter. Original estimated quantity of linear feet of storm sewer
<br /> pipe, 8 inch diameter,was exceeded during construction.
<br /> Item#22-Storm Sewer Pipe,12-Inch Diameter. Original estimated quantity of linear feet of storm
<br /> sewer pipe, 12-inch diameter,was not required during construction.
<br /> Item#23-Storm Sewer Pipe,18-Inch Diameter. Original estimated quantity of linear feet of storm
<br /> sewer pipe, 18-inch diameter,was exceeded during construction.
<br /> Item#24-Manhole Type I,48-Inch Diameter. Original estimated quantity of manholes,Type I,48-inch
<br /> diameter,was not required during construction.
<br /> Item#25-Wet Vault No.1. Deleted wet vault No.1 from the contract due redesign of storm sewer
<br /> system.
<br /> Item#26-Wet Vault No.2. Deleted wet vault No.2 from the contract due redesign of storm sewer
<br /> system.
<br /> Item#27-Structural Excavation Class A,Including Haul. Original estimated quantity of cubic yards
<br /> of structural excavation,including haul,was exceeded during construction.
<br /> Item#28-Structural Excavation Class B,Including Haul. Original estimated quantity of cubic yards of
<br /> structural excavation Class B,including haul,was exceeded during construction.
<br /> Item#29-Shoring or Extra Excavation Class B. Original estimated quantity of square feet of shoring or
<br /> extra excavation class B,was not required during construction.
<br /> Exhibit A 1 1.
<br /> Page 7 of 11
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