AE Submittal Return Process & Submittal Review
STATEMENT OF PROBLEM Throughout the job there were critical submittals CCC needed prompt reply on in order to complete work per the schedule. Submittals that were delayed (in this case most notably structural steel submittals) caused schedule delays for CCC in ordering materials/completing the work. While many su…
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…
Press Pier Anchor Bolt Cans
Statement of Problem: During the design process CCC was provided with a Rotem drawing with several sheets detailing the press foundation requirements. An enlarged elevation called for a "can" cast into the pier to allow for bolting the press anchor rod (hand hole). The drawing showed the can height at 300mm. Howe…
GM Pontiac Press Pier Anchor Bolt Cans
STATEMENT OF PROBLEM During the design process CCC was provided with a Rotem drawing with several sheets detailing the press foundation requirements. An enlarged elevation called for a "can" cast into the pier to allow for bolting the press anchor rod (hand hole). The drawing showed the can height at 300mm. Howev…
GM Pontiac Oily Wastewater Tank Design
STATEMENT OF PROBLEM For this project a new, welded steel oily wastewater tank was provided in the scrap tunnel in lieu of relocating an existing tank, at no cost to GM. The new tank shop drawings did not include for a manway. The shop drawings were submitted, reviewed, and approved by the EOR. The tank was fabri…
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…
GM Arlington Assembly Non-Conforming Work Poor Concrete Finish
STATEMENT OF PROBLEM Poor finish on exterior concrete. Exterior concrete batch error. There was clumping or balling of synthetic fibers on the interior slab. Post project review shows poor grading and compaction of sub-grade and excessive fibers protruding from the slab. COURSE OF ACTION Offered GM an e…
Lack of preparedness from Prime
Project Phase: Procedural Management Delivery Method: General Contract-Sub Prime was not prepared to execute project. Prime project team was not adequate (not enough qualified engineers and support staff). - Prime over extended.
Clarification of Building Structural Steel Design Type
Statement of Problem: At bid time GM provided LGR structural reference drawings for their press bay addition. These drawings employed a single-column design concept with a cantilevered bracket to support the crane girders. However, nothing in the RFPS stated that Pontiac had to use a single-column design or copy …
New Cooling Tower Mechanical/Structural Coordination
Statement of Problem: In the design coordination of the cooling tower cells and the steel support platform, there was a disconnect in the 3D model between JEG and IBI with the actual elevation of the cells. Additionally, JEG changed the piping configuration to the basins and this impact was not discussed with the…
