Foundation digging.
Footings, new-home basements and additions start with a clear excavation plan. Understand the footprint, access, spoil removal and handoff to the next trade.
What should a foundation-excavation bid include?
Footings, new-home basements and additions start with a clear excavation plan. Understand the footprint, access, spoil removal and handoff to the next trade.
Illustrative excavation scene.
A foundation cut needs to match the current design and leave a clear handoff for concrete work. The footprint alone is not enough: access, working space, ground acceptance and the return for backfill can change the scope.
Before the cut
Provide the latest foundation plans and layout information. Identify the elevations, access, stockpile space and export needs. Confirm who supplies the layout and who evaluates the exposed ground before concrete work proceeds.
Price the complete handoff
Ask whether loading, haul-off, imported material, inspections, testing and backfill are included. If another contractor works between digging and backfill, confirm return mobilization and the required material and finish.
Existing structures need a separate decision
New-construction basement excavation is not the same as lowering a basement or underpinning existing footings. Work that could affect a structure needs appropriate assessment and design, not an assumption that a normal digging scope covers it.
How the digging and backfill visits connect
A foundation bid can involve two different visits. The first opens the footprint; concrete and other work may happen before the excavation contractor can return for backfill. Return mobilization means bringing equipment and people back to the site, not just adding more digging time.
Ground acceptance means the responsible qualified party has checked the exposed ground against the project requirements. Ask who makes that decision and which record the next trade needs. Do not cover a problem simply because the opening looks ready.
- Identify the plan revision and the party supplying layout and elevations.
- List the excavation, concrete and backfill handoffs separately.
- Ask which removed material can return, and who specifies imported fill.
- Define who schedules testing and what happens if the next stage is delayed.
Common questions
Can unsuitable soil change the price?
It can change removal, replacement and testing requirements. Agree on documentation and change approval before work.
Does the excavation price include concrete?
Not unless the written proposal includes it. Identify each trade and its acceptance requirements.
Sources and further reading
- Utah Geological Survey: problem soil and rock
- Earthtec Engineering: observations and testing, a professional-service example
- CDC/NIOSH: trenching and excavation safety
Related project information
Discuss your project
Include the current foundation plans, location, access and whether you need the later backfill stage.
Request a free bid through Utah Excavation Company. 801-515-4932.