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GM Pontiac Tooling Cart Trenches Dimensional Error
STATEMENT OF PROBLEM During the revisions being made to the Rotem drawings, on revision 5 Rotem changed the width and depth for one of the two tooling cart rails for each tooling cart rail system located between the presses (4 sets of rails total). The trench for the rail became wider by several millimeters and deep…
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Inefficiencies and lost time due to lack of bolt bin
Project Phase: Project Delivery Method: General Contract-Sub No mobile bolt bin created field inefficiencies and lost time.
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Press Process Design Coordination with Facility Design
Statement of Problem: There were several issues to where the 2D press drawings provided by Rotem did not show enough detailed information for proper coordination. These included: 1) the press cable trays in pit 2) The platforms and ladders between the presses. 3) D/B team not having a useable press 3D model. …
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GM Pontiac Mechanical Equipment Control Wiring Design
STATEMENT OF PROBLEM There were significant delays in obtaining control wiring drawings from the mechanical subcontractor for the cooling tower, the ARUs, and the substation W HV units. This led to several delays with the electrical installation of the unit controls as the electrical subcontractor could not do an…
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GM Pontiac Process (Press) Design Drawings coordination with Facility drawings
STATEMENT OF PROBLEM There were several issues to where the 2D press drawings provided by Rotem did not show enough detailed information for proper coordination. These included: 1) the press cable trays in pit 2) The platforms and ladders between the presses. 3) D/B team not having a useable press 3D…
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Cooling Tower Pump Room - Water Treatment Chemicals
Statement of Problem: The pump room design had insufficient containment for the two chemicals treating the cooling tower water. This led to a situation where if an accident were to happen and both drums were ruptured, the two incompatible chemicals could potentially mix and produce an adverse gaseous affect (chlo…
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GM LGR CMM Pit Infill Incorrect Shake Hardener Color
STATEMENT OF PROBLEM Concrete pour was cancelled after 20 yards arrived on site. Shake hardener color was incorrect. Color was not specified by the PM when ordering. Superintendent did not verify color of pour until morning of pour. The pre-pour checklist was incomplete. COURSE OF ACTION Pour reschedule…
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Unknown As-Built Conditions
Statement of Problem: At bid time CCC received the 1950 Albert Kahn facility record drawings of the plant. This set had two foundation drawings, showing two different column foundation types for the plant. One drawing showed all footings, one drawing showed all caissons. It was unknown by GM which was the as-built c…
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Incomplete Drawings
8575 General Motors (GM) Ultium 2 Battery Plant STATEMENT OF PROBLEM 1. Incomplete drawings - Missing dimensions 2. OEM's like to layout based on bolt holes 3. OEM's left/arrived every 3 months - they tried to overturn decisions that had already been made. 4. Lack or coordination between OEM's in different are…
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GM Pontiac Stair Width Clearance Issue
STATEMENT OF PROBLEM The GM process team stated they wanted 36" wide clearance for all metal stairs in a design meeting. When IBI designed the stairs they made the tread 36" wide. However, the inner grab bars which project from the outer guardrail impede on that clearance (only 32" clearance). This was deemed a n…
