Observations/Finding

At the request of the client’s representative, our AS ENGINEERING AND CONSULTING, LLC (ASEC) representative visited the job site to visually observe the contractor’s work activities from a quality standpoint to verify compliance with project drawings/specifications, applicable codes, and materials submittals and conducted QC testing per the project drawings and specifications.  The following observations were made on site this shift:

Incident Summary

A request was made to perform a proof-roll at 9:00 AM on the future deceleration lane. Upon arrival, it was observed that the future deceleration lane subgrade was not ready for proof-rolling, leading to the postponement of the scheduled activity. The foreman on-site decided to delay the proof-roll to the next day.

Sequence of Events

1. Proof Roll Request
   • Requested Time: 9:00 AM
2. Arrival at Site
   • Time of Arrival: 9:00 AM
   • Upon arrival, it was observed that the deceleration lane was not in a condition to perform the proof roll. Necessary preparations and compactions were incomplete.
3. Assessment of Deceleration Lane Condition
   • Observed Condition:
     • The surface was not adequately prepared.
     • Required compaction levels were not achieved.
     • Presence of loose material and unfinished grading.
4. Decision to Delay
   • Decision By: On-Site Foreman
   • The foreman decided to delay the proof-roll to allow for the completion of required preparations.

Analysis

1. Preparation Issues
   • Incomplete preparation of the deceleration lane hindered the scheduled proof-roll. This includes inadequate grading, compaction, and removal of loose materials.

Immediate Actions Taken

1. Communication
   • Confirmed the new scheduled time for the proof-roll.
2. Preparation Plan
   • Coordinated with the foreman to ensure all necessary preparations for the deceleration lane are completed before the rescheduled proof-roll.

Conclusion

The inability to perform the proof-roll as scheduled was due to the unprepared condition of the deceleration lane subgrade. Immediate actions have been taken to address the issue, and a new proof-roll has been scheduled for the next day.