GM Pontiac Cooling Tower System Design
STATEMENT OF PROBLEM Before the cooling tower system was turned over to the plant, an oily sheen was discovered in the basins by GM. CCC mitigated the issue with oil socks but it was brought up by the plant on why the filter was not running/filtering the oil. This was because the filter is not meant to filter oil…
GM Pontiac A-line Existing Foundations
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…
GM Pontiac Toilet Room Basin Sinks
STATEMENT OF PROBLEM Incorrectly sized basin-style sinks were installed in the mens and womens toilet rooms, which created a code violation where the egress minimum width of 36" was impeded in the mens toilet room entrance way. The architect sized and placed the basin-style sinks at mens and womens locker rooms but …
GM Pontiac Process Utility Holes Over Press Pit
STATEMENT OF PROBLEM Once the press pit steel design was complete, CCC provided the pit framing steel model / 2D drawings to GM to provide to Rotem for their use. Rotem placed approximately 45 openings through the rebar SOD, and provided the 2D process drawing to GM/CCC. This drawing underwent 10 revisions by Rot…
GM Pontiac Substation W Equipment Floor Loading Issue
STATEMENT OF PROBLEM CCC received the substation equipment shop drawings from GM late in the project, at end of July. In August CCC worked with GM on the rigging plan for hoisting the new substation equipment into the penthouse. IBI performed a structural analysis of the penthouse framing steel and the hoist beam…
Estimating and VDL Knowledge
Project Phase: Estimating Delivery Method: General Contract-Sub Estimating made the assumption that VDLs were shipped in and never ran off. CCC doubled hours due to this. Manual provided for installation was not used per VDL Expert.
Field Checks not being completed
Project Phase: Installation Delivery Method: General Contract-Sub Customer and Prime field checks were not complete and / or not accurate.
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.
GM Pontiac Incorporation of Scope From Bid-time Addendums and Q&A
STATEMENT OF PROBLEM Throughout the project there was a consistent issue where CCC/IBI failed to reference the bid-time addendum Q&A for final scope direction on design items which were not clear in the RFPS. The two major items which were not followed per the Q&A were: 1) OH door design in blank receiving fo…
Datum Points Not Correctly Coordinated
8575 GM Ultium 2 Battery Plant STATEMENT OF PROBLEM 1. Bass Datums were not coordinated correctly/accurately. In turn, system integration was challenging. 2. Avaco did not have the skilled help they needed on site. 3. The schedule was built to construct all of Pancake Line-3, and then, all of Pancake NnD Input …
