Unforeseen ground conditions and groundwater at the foundations of axes 12 to 16

20CriticalEscalated

A risk's detail, response, contingency and residual risk.

Risk statement

From cause to event to impact — with the preventive controls before the event and the contingency after it

Cause

Clay layers and voids under the southern part of the site that the initial soil tests missed

Preventive controls

1 / 3

Event

Unforeseen ground conditions and groundwater at the foundations of axes 12 to 16

20CriticalTrigger

Excavation stopped at any axis for more than 10 days

Contingency

Switch to deeper rotary-bored piles

Impact

Foundations of five axes redesigned, 55 days late, SAR 27M

SAR 27M

The level before and after the response

Inherent

20Critical

Residual

8Medium

Exposure

SAR 27M

Residual

⁦60⁩% off the score

Score trend

Last six months

Escalation engine: a high risk unreviewed for 10 days notifies the PM, 15 the programme manager, 20 the EPMO director

Last reviewed 5 days ago

Project manager
Eng. Ahmed Y. Asiri
Currently followed up here
Programme manager
Current level
Eng. Ahmed Y. Asiri
Automatically at 15 days unreviewed · in 10 days
3
EPMO director
Dr. Noura M. Al-Otaibi
Automatically at 20 days unreviewed · in 15 days
4
Executive committee
Dr. Abdullah S. Al-Qahtani
By the EPMO director’s decision

Each action with its owner and date — tick it off when complete

⁦2⁩ of ⁦3⁩ done

Extra soil tests at axes 12 to 16
Eng. Ahmed Y. Asiri
Done⁦2026-10-20⁩
A change request to redesign the foundations
Eng. Ahmed Y. Asiri
Done⁦2026-09-28⁩
Dewatering at axis 14
Eng. Adel S. Al-Amoudi
In progressIn 11 days

Trigger

Excavation stopped at any axis for more than 10 days

Contingency

Switch to deeper rotary-bored piles