Start by re-establishing the contract baseline schedule, then document the current status and the specific causes of delay. Determine from the contract whether each cause is excusable, compensable, or contractor-owned, and require a written recovery schedule before releasing further payment on affected work.
The sequence
Pull the baseline schedule attached to or referenced in the contract
Request the current updated schedule with actual start and finish dates
Identify the critical path today and what is sitting on it
List delay causes and attach documents to each — RFIs, weather logs, submittals, owner decisions
Classify each: excusable and compensable, excusable non-compensable, or contractor-caused
Require a written recovery plan with named manpower and procurement dates
Confirm notice provisions and time limits in the contract before asserting anything
Common causes and who usually owns them
Cause
Typically owned by
Late owner decisions or selections
Owner
Design errors or omissions requiring rework
Design team / owner
Unforeseen subsurface conditions
Depends on contract language
Late procurement of long-lead items
Contractor, unless ordered by owner
Undermanning or subcontractor default
Contractor
Abnormal weather beyond contract allowance
Excusable, generally non-compensable
What not to do
Do not withhold payment for work properly in place without a contractual basis
Do not verbally approve acceleration — it becomes a change order you didn't price
Do not skip written notice because the relationship is friendly
Common questions
Can I charge liquidated damages?
Only if the contract provides for them, the delay is not excusable, and notice requirements have been met. Asserting them without that foundation usually weakens the owner's position.