Structural Calculations for Pad Footings and Pile Caps: A Plain English Guide for Owners

Introduction

Structural calculations for pad footings and pile caps are the engineering analyses that confirm whether a foundation can safely carry the loads from your building or infrastructure into the ground – without excessive settlement, cracking, or failure. This guide translates those calculations into plain English so that building and infrastructure owners can understand what their engineers are actually checking, what the numbers in design reports mean, and where the real cost and risk decisions lie.

This is not a step-by-step design manual for engineers. The scope here is focused on helping you interpret calculation outputs, recognise critical assumptions, and ask better questions when reviewing foundation proposals. Whether you are looking at a pad footing under a low-rise column or a pile cap tying together a group of deep piles beneath a bridge pier, the principles are the same – and the stakes are high enough to justify understanding them.

The intended audience is Singapore and regional owners, developers, and asset managers who may have little or no structural background but are planning new builds, additions and alterations (A&A), or infrastructure upgrades. If you are commissioning a warehouse, a substation, a viaduct, or a multi-storey development, this guide is for you.

In short: these calculations verify that both the ground and the reinforced concrete elements can carry expected column and pier loads – dead, live, wind, and other actions – with adequate safety margins and acceptable settlement. As an owner, your main job is to understand the assumptions driving the design, the safety factors applied, and the red flags that signal a problem.

After reading this guide you will be able to:

• Read and question footing and pile cap design reports with confidence.

• Know when shallow foundations like pad footings are enough and when pile foundations with pile caps become necessary.

• Recognise the critical inputs that drive foundation design: loads, soil report data, codes, and safety factors.

• Understand what drawings, calculation summaries, and compliance documents to request from your consultants.

• Make informed cost, time, and risk trade-offs between different foundation options.

Understanding Foundations, Pad Footings, and Pile Caps

Every building or structure sits on a foundation. The foundation’s job is simple in concept: transfer loads from the superstructure – columns, walls, beams, slabs, and everything they support – into layers of soil or rock that are strong enough to carry those loads without moving too much. Get this wrong, and cracks appear, floors tilt, pipes break, and in extreme cases the structure can collapse.

The choice between a pad footing (a type of shallow foundation) and a pile cap system (part of deep foundations) affects your project’s cost, construction schedule, and long-term performance more than almost any other early design decision. A pad footing sitting on firm ground near the surface is cheaper and faster to build. A pile cap distributing loads to a group of piles driven or bored 15–30 m into the ground costs more but is essential where surface soils are weak, where heavy loads must be carried, or where the risk of differential settlement near adjacent structures is unacceptable.

Pad Footings in Plain English

A pad footing – also called an isolated footing or spread footing – is a block of reinforced concrete placed under an individual column or a small cluster of columns. Pad footings are typically square or rectangular in plan. They sit at relatively shallow depth, often 1–2 m below finished ground level, and are common under houses, low-rise commercial buildings, light industrial sheds, and small substations where the soil near the surface is firm enough.

On drawings, owners will see dimensions such as width × length (for example, 2.0 m × 2.0 m or 2.5 m × 2.5 m), thickness (commonly 600–900 mm), depth below finished ground, concrete grade (e.g. C35/45), and a reinforcing bar layout showing bottom steel bars in both directions with their size and spacing (e.g. T16 @ 150 mm each way). A pad footing typically has a thickness of approximately B/4, where B is the plan width.

The role of the pad footing is to spread the column load over enough soil area so that the bearing pressure stays within the allowable bearing capacity stated in the geotechnical report. Pad footings distribute loads to the soil beneath them, and engineers size the concrete slab to resist bending, beam shear along the edges, and punching shear around the column. Isolated footings support individual columns and spread loads safely – that is their entire purpose.

Piles and Pile Caps in Plain English

Piles are long, slender deep foundation elements – reinforced concrete, precast concrete, steel H-sections, or even timber in historical contexts – that transfer loads to deeper, stronger ground. Piles can be made from timber, concrete, or steel, though reinforced concrete and steel are most common in Singapore. Bored piles can be 0.3 to 3 m in diameter, and piles can reach depths of 30 meters or more in soft marine clay or reclaimed land, passing through weak surface soils until they hit a competent bearing stratum.

A pile cap is the thick concrete block that ties together a pile group beneath a column or bridge pier. Pile caps tie together a group of driven piles to distribute column loads evenly across the piles. Owners will typically see pile arrangements on drawings such as 2-pile caps (for lightly loaded columns or walls), 4-pile groups in a square pattern, 6-pile (2×3) groups, or 9-pile (3×3) groups for heavy loads. The spacing between piles must be at least 2.5 times their diameter to prevent overload from group interaction effects.

Pile foundations enter the picture when surface soils are too weak for shallow foundations – soft marine clay, loose fill, high water table – or when loads are large (multi-storey towers, bridge piers, heavy industrial equipment, coastal or reclaimed land infrastructure). Piles resist uplift and lateral loads effectively, making them suitable for structures exposed to wind or seismic actions.

The structural design of a pile cap involves distributing loads from the column to each pile, verifying that each pile has adequate geotechnical and structural capacity, and designing the cap itself for bending, shear, and anchorage. The thickness of pile caps is typically greater than that of pad footings to handle the complex shear stresses between column and pile heads.

While engineers handle the maths, owners should understand the basic inputs and checks behind these designs – and that is exactly what the following sections cover.

What Structural Calculations Actually Check for Pad Footings and Pile Caps

Both pad footing and pile cap calculations revolve around two fundamental questions: “Can the soil take the loads?” (the geotechnical check) and “Can the concrete and steel take the loads?” (the structural check). Both structural adequacy and geotechnical adequacy are critical for safe foundation design – you cannot have one without the other. Foundation design must consider both structural integrity and geotechnical conditions in every case.

Loads: What Is the Foundation Actually Carrying?

The loads a foundation must carry include dead loads (the self-weight of the structure, beams, columns, finishes, and the footing itself), live loads (people, vehicles, storage, equipment), wind loads (especially for tall or exposed structures), and sometimes hydrostatic uplift for below-ground or submerged elements. Seismic loads may also apply depending on site-specific requirements.

Engineers convert these actions into design loads using codes such as SS EN 1990 (Basis of Structural Design), SS EN 1991 (Actions on Structures), and the Singapore National Annex. For the ultimate limit state, load combinations might take the form 1.35G + 1.5Q, where G is the permanent (dead) load and Q is the variable (live) load, though the local annex may adjust partial factors.

To give owners a sense of scale: a column load for a low-rise residential building might be in the range of 500–1,500 kN, while a bridge pier for major infrastructure can see design loads of 4,000–6,000 kN or more. For the Johor Bahru–Singapore Rapid Transit System (RTS) Link viaduct, pile caps associated with piers required piles approximately 2 m in diameter and 30 m deep, implying column loads in the thousands of kilonewatts.

Why does this matter to owners? Because accurate load take-off and early architectural coordination are essential. Underestimating live loads, omitting future equipment loads, or changing the building use after foundations are designed can force redesign, bigger foundations, and significant cost and time overruns.

Ground Conditions: Reading the Soil and Geotechnical Report

A formal soil test is essential before sizing a foundation to ensure safety. The borehole log and soil investigation report show the vertical layering of soils beneath your site – fill, marine clay, sand, stiff clay, rock – along with the groundwater table, SPT N-values (Standard Penetration Test blow counts), undrained shear strength (cu) for clay layers, and drained strength parameters (ϕ′, c′) for granular soil like sand. Structural calculations must reference a geotechnical report for accurate soil bearing data.

Terms owners will encounter include:

• Allowable bearing pressure – the maximum pressure the soil can safely support, expressed in kPa. For compact fill, sand, or stiff clay this might be 150–300 kPa; for soft marine clay or loose fill it could be as low as 50–100 kPa. The soil has a maximum pressure it can safely support called the allowable bearing capacity. Allowable bearing capacity for clay is 2 times cohesive strength.

• Undrained shear strength (cu) – relevant for clay layers, perhaps 20–80 kPa in soft clay, higher in stiff clay.

• SPT N-values – numbers like N = 5–10 for loose fill or soft clay; N > 30 for dense sand or stiff clay.

• Settlement estimates – immediate (elastic) and long-term consolidation settlement in clays, with acceptable limits often expressed as less than 25 mm for pile foundations under working load in Singapore practice.

Owners should insist on up-to-date ground investigation before finalising foundation type and sizes. Soil conditions can vary dramatically over short distances – especially on reclaimed land or sites with marine clay – and existing reports may be outdated or unrepresentative.

Safety Factors and Design Codes

Safety is built into foundation design through factors that provide a margin between what the ground and materials can theoretically carry and what they are actually asked to carry. Common design practice requires a factor of safety of 2.5 to 3.0 on pile capacity when load tests have not been performed. Under the newer Eurocode framework (SS EN 1997 with the Singapore National Annex NA+A1:2018), the older global factor is replaced by partial factors that split uncertainty between loads (actions) and resistances (soil strength, material strength).

For example, the Singapore National Annex specifies a Model Factor (MF) of 1.55 if pile resistances are not verified by a maintained load test, reduced to 1.35 if verified by such testing for both shaft and base resistance. Partial resistance factors for bored piles may be approximately 2.0 for end bearing and 1.6 for skin friction under certain design approaches.

This is why two consultants might propose slightly different foundation sizes for the same building: the code edition, safety approach (Design Approach 1 vs 2 under EC7), and whether pile load test verification is planned all influence the numbers. Owners should ask: “Which code and safety factors are you using?”, “Are these in line with BCA, LTA, or JTC requirements?”, and “Has a pile load test been factored in?”

With these inputs established, the following sections walk through how engineers check a typical pad footing and pile cap in a way owners can follow.

Pad Footing Calculations: From Bearing Check to Rebar Layout

This section walks through the design process for a typical pad footing – from sizing the plan area to checking shear and specifying steel reinforcement – so that owners can follow the logic without needing to work through complex formulae.

Step 1 – Sizing the Footing Area (Bearing Pressure)

Engineers perform a soil bearing capacity check to ensure safety against ground failure. The basic relationship is straightforward: the required footing area is calculated using N/q_allow – total service load divided by allowable bearing pressure from the soil report.

Here is a realistic example. Suppose a column service load is 1,000 kN and the soil report specifies an allowable bearing pressure of 200 kPa (200 kN/m²). Adding about 10% for the footing’s own weight gives roughly 1,100 kN. Required area = 1,100 ÷ 200 = 5.5 m². The engineer would likely choose a square pad of approximately 2.4 m × 2.4 m (5.76 m²) or round up to 2.5 m × 2.5 m for constructability.

It is important to note that bearing pressure is typically checked at the serviceability limit state using unfactored or lightly factored service loads, not the fully factored ultimate loads used for bending and shear. This distinction trips up many non-engineers reading calculation reports.

Owner-impacting constraints also come into play here: property boundary lines, underground services (pipes, utilities, MRT protection zones), and basement walls can all limit how large or deep a footing can be, sometimes forcing a switch to pile foundations even when soils are suitable for shallow foundations.

Step 2 – Checking Shear and Punching Around the Column

Shear and punching shear represent the risk of the column “punching through” the concrete footing – a localised failure that can occur if the footing is too thin or lightly reinforced. Punching shear checks determine if a column can punch through a concrete footing, and this is often the check that governs the minimum thickness.

Engineers calculate shear stresses near the column face and at a critical perimeter located a distance equal to the effective depth (d) from the column face, then compare these against code-based shear capacities. One-way shear checks ensure concrete does not fail along a specific section running the full width of the footing.

In a calculation report, owners might see shear check tables with entries like “Vu/Vc = 0.72 < 1.0 → OK,” meaning the applied shear (Vu) is comfortably below the concrete’s shear capacity (Vc). If the ratio exceeds 1.0, the footing fails that check and the engineer must increase its thickness, add shear reinforcement, or enlarge the footing – each of which increases excavation volume, concrete quantity, and cost.

Punching shear can cause localized failure around a column or pile in concrete elements, so this is never a check to dismiss. If your report shows ratios above 0.85–0.90, ask your engineer whether the margin is adequate.

Step 3 – Bending and Rebar Design

Outside the column face, the pad footing acts like a cantilever slab – soil pressure pushes upward while the column load pushes down, creating bending moment in the concrete. Reinforcement is needed to resist bending in pad footings, and this reinforcement goes mainly at the bottom face where the concrete is in tension.

Engineers calculate bending moments to size the internal steel reinforcement in concrete. They divide the footing into design strips in each direction, compute bending moments per unit width at the column face, and select bar size and spacing accordingly. A typical result might read “T16 @ 150 mm c/c each way, bottom” – meaning 16 mm diameter high-yield steel bars at 150 mm centres in both X and Y directions.

Concrete covers protect steel reinforcement from corrosion and mechanical damage. For soil-contact faces, cover is often 50 mm or more, depending on the exposure class specified in SS EN 1992 and the Singapore National Annex. Typical concrete grades are C30/37 or C35/45, and steel grade is B500B (yield strength approximately 500 MPa).

Practical owner decisions here include buildability: heavy rebar congestion (many bars at tight spacing) requires more skilled labour and stricter site inspection. Very large footings with dense reinforcement can slow down construction if not properly planned.

A “pass” on bearing pressure, shear, punching shear, bending, plus adequate cover and durability detailing, gives a safe pad footing design. The same fundamental principles apply to pile caps, but the load path and checks become more complex.

Pile Cap Calculations: Sharing Loads Between Piles Safely

Where a pad footing bears directly on shallow soil, a pile cap sits atop a group of deep piles and distributes the column load downward through each pile into the bearing stratum. The design process is more involved because engineers must design pile caps to handle both the geotechnical capacity of each pile and the structural behaviour of the cap itself as a thick, heavily loaded concrete element.

Step 1 – Determining Number and Arrangement of Piles

Engineers start from the total design load on the column and divide by the allowable working capacity per pile, then add margin for group efficiency and layout symmetry. Each pile must remain under its maximum rated capacity to ensure stability.

A simple example: if the column load is 4,000 kN and each pile has an allowable working capacity of 900 kN (after applying safety factors), the group needs at least 5 piles. In practice, the engineer might use 6 piles in a 2×3 arrangement for redundancy and to ensure the cap geometry works with the column dimensions. The spacing between piles must be at least 2.5 times their diameter – so for 450 mm diameter piles, centres would be at least 1,125 mm apart.

In Singapore, pile capacity is often derived from SPT N-values and undrained shear strength using empirical methods, supplemented by local authority guidelines. Skin friction along the pile shaft and end bearing at the pile toe both contribute to capacity. The ultimate axial capacity of a single pile in a typical Singapore formation can reach 3,165 kN before safety factors are applied. The average effective stress over a sand shaft can be 125.0 kPa, which enters the skin friction calculation directly.

Common pile arrangements owners see on drawings include 4-pile (square), 6-pile (2×3), 9-pile (3×3), and circular layouts for bridge piers. The choice depends on the magnitude and eccentricity of loads, the pile foundation type selected, and site constraints.

Step 2 – Load Distribution to Each Pile

When the column load or bending moment is not perfectly centred on the pile group, some piles carry more load than others. Engineers analyse this distribution by considering the rigidity of the cap, the stiffness of each pile, and the moment arms from the column to each pile position.

The result of this analysis is a table showing the axial force in each pile (in kN), with the most heavily loaded pile – typically at a corner or edge of the group – governing the design. Lateral loads from wind or seismic actions add further complexity, as horizontal forces must also be distributed among piles.

Owners should be aware that asymmetrical column positions, edge conditions, or heavy eccentric loads (from crane beams, cantilever structures, or equipment) can significantly increase the number of piles required and the pile cap dimensions. If your calculation report shows one pile carrying substantially more than the average, ask whether the margin is sufficient and whether redistributing loads through a different arrangement would be more economical.

Step 3 – Bending, Shear, and Anchorage in the Pile Cap

The pile cap behaves like a deep beam – or, for complex geometry, engineers use strut-and-tie models to analyze load distribution in pile caps. The cap must resist bending moments induced by the column load, one-way and two-way shear between pile heads and cap edges, and punching shear under the column or over individual piles.

Typical pile cap thicknesses owners might see range from 500–600 mm for lightly loaded two-pile caps (an example from the ACES Design Guide shows a pile cap of 2,100 mm × 700 mm × 510 mm depth supporting 2 piles of 300 mm diameter) to 1.2–2.0 m or more for heavy building columns or bridge piers. For major infrastructure like the RTS Link viaduct, pile caps support piles approximately 2 m in diameter at depths of around 30 m.

Anchorage is a critical safety issue: column reinforcement must extend properly into the cap with sufficient development length, and pile reinforcement must be properly embedded. Inadequate anchorage can lead to a brittle failure with no warning. Calculation reports will show anchorage lengths, lap details, and localised bars above each pile head and below the column.

A good pile cap design ensures that each pile works within its safe limit and that the concrete block itself is robust against the complex internal load paths between column and piles.

From Calculation Sheet to Site: Practical Implementation

Even the most rigorous calculations can be undermined by poor construction execution, changes on site, or missed inspections. The gap between design assumptions and site reality is where many foundation problems originate.

Construction Tolerances and Site Realities

Owners should be aware of typical construction tolerances: a driven pile or bored pile may deviate by ±75 mm from its intended position; cut-off levels must match the design founding level; and footing excavation depths may vary. Engineers check whether as-built deviations keep loads within safe limits; sometimes additional checks, remedial measures such as adding piles, or thickening caps are needed.

Bored piles can hide construction defects after installation – voids, necking, or contaminated concrete may not be visible – which is why integrity testing (such as crosshole sonic logging or low-strain impact testing) is often specified for critical piles. Driving piles can cause noise and vibrations nearby, which is a practical constraint in dense urban areas like Singapore.

Pre-pour inspections of reinforcement are essential: checking bar sizes, spacings, lap lengths, and cover before concrete is placed. Cube tests verify that the concrete achieves its specified strength. Owners should require photographic and digital records of every critical stage.

Authority Submissions and Compliance in Singapore

In Singapore, BCA requires structural submissions under the SS EN code framework. Geotechnical design follows SS EN 1997 with the Singapore National Annex, and pile foundation design must comply with the industry guideline “Guideline On Local Practices For Pile Foundation Design and Construction” published jointly by BCA, IES, and ACES.

HDB technical requirements specify a minimum factor of safety of 2.5 times nominal working load for pile foundations, minimum pile embedment into the pile cap, and that bearing capacities must be clearly indicated and based on bore logs. For light structures where bore logs are unavailable, a default allowable bearing of 50 kN/m² at a minimum depth of 1.5 m is permitted.

Registered Professional Engineers must sign off on all foundation calculations and drawings. Designs are submitted via CORENET, with approvals from BCA, URA, LTA, JTC, or PUB depending on the project type. Owners should ensure these documents are officially lodged and approved before major works begin. Stellar Structures can coordinate full-scope design and submissions, integrating geotechnical, structural, and architectural inputs to minimise costly redesign late in the process.

Cost, Time, and Risk Trade-Offs for Owners

Pad footings cost less and are faster to build – less excavation, simpler formwork, fewer materials – and are suitable where soil near the surface is firm and the column load is moderate. Piles are more expensive and time-consuming than footings, but for heavy loads or weak soils they are the only viable option and often reduce long-term settlement risk and maintenance costs.

Owners should evaluate whether pile load tests are warranted (they can allow lower safety factors and potentially fewer or smaller piles, saving cost), whether ground improvement techniques might avoid piling altogether, and whether foundation dimensions will affect architectural or planning constraints. Life-cycle thinking – rather than lowest initial cost – is essential in Singapore’s dense urban context, where excessive settlement of one structure can damage neighbours, utilities, and infrastructure.

Common Owner-Level Challenges and How to Address Them

Most foundation issues arise not from formula errors, but from assumptions, coordination gaps, and late changes. Here are the scenarios owners most commonly face.

Problem 1 – Late Changes to Building Layout or Loads

Scenario: The column grid is altered, an additional storey is added, heavier HVAC or tank equipment is introduced, or a mezzanine level is planned after foundations have been designed – or worse, partially built.

Solution: Insist on recalculation of all affected pad footings and pile caps. Consider strengthening (enlarged caps, additional piles) where needed. Lock in key design parameters – column positions, equipment loads, intended use – before the foundation tender. Even seemingly minor changes to column load can shift a footing from “passing” to “failing” its bearing, shear, or bending checks.

Problem 2 – Uncertain or Poor Ground Conditions

Scenario: Limited or low-quality soil data, or ground conditions during excavation or piling differ from the investigation – unexpected soft layers of clay, boulders, or contaminated fill.

Solution: Build contingency into both programme and budget for supplementary investigation and redesign. Have an on-call consultancy to rapidly update foundation sizes and pile lengths. At a minimum, verify that bore logs cover the footprint of every major foundation element and extend to at least 5 m below the intended founding level.

Problem 3 – Misalignment Between Structural Design and Contractor Methods

Scenario: Structural calculations assume bored piles, but the contractor prefers a driven pile method or proposes alternative footing sizes to suit their equipment.

Solution: Require a detailed method statement and design verification from the contractor’s Professional Engineer. Driven and bored piles behave differently – shaft skin friction, base resistance, and installation effects all change. Ensure the revised calculations and drawings are re-submitted to authorities if the change is significant. Independent review is advisable for major departures.

Problem 4 – Difficulty Interpreting Calculation Reports

Scenario: Owners receive 100+ page calculation packages dense with formulae, code clause references, and tables that are hard to relate to cost and risk decisions.

Solution: Ask consultants for an executive summary section highlighting key assumptions (soil bearing pressures used, column loads, safety factors), governing checks (which check controls the design – bearing, shear, or bending), and any “watch points” where margins are tight. Stellar Structures provides owner-friendly summary tables and annotated sketches alongside the formal calculation submissions.

Conclusion and Next Steps

Structural calculations for pad footings and pile caps are fundamentally about safely matching three things: the loads coming from your structure, the ground conditions at your site, and the materials (reinforced concrete and steel reinforcement) forming the foundation. Owners do not need to reproduce the engineering – but understanding the inputs, assumptions, and outputs at a high level puts you in a far stronger position to manage cost, risk, and quality.

Suggested next steps:

1. Gather existing soil reports, previous structural drawings, and any planned load changes for your site.

2. Ask your engineer for a one-page summary of key footing or pile cap calculations and the safety factors used.

3. Review whether pad footings or pile caps are being proposed and why, in light of your project’s risk profile and ground conditions.

4. Check that the design code version (SS EN 1997, SS EN 1992, Singapore National Annex 2018) and partial factors are clearly stated and appropriate for your project type.

5. Engage a consultancy like Stellar Structures early if you are planning major A&A, new infrastructure, or building on challenging ground.

Related topics owners may want to explore next include raft foundations and retaining structures, differential settlement management, and structural health monitoring for existing assets.

Additional Resources and Owner Checklists

These checklists are intended to give owners a structured framework for more productive conversations with their engineers. They do not replace professional judgement, but they ensure the right questions get asked before concrete is poured.

Owner’s Checklist for Reviewing Pad Footing Designs

• Is there a recent soil investigation report specific to my site, and does it cover the location of every major footing?

• What allowable bearing pressures were used, and are they consistent with the geotechnical report’s recommendations?

• Are all major columns and walls clearly supported by appropriately sized footings on the drawings?

• What safety factors or partial factors were adopted, and under which code edition?

• How is long-term settlement addressed, especially near existing buildings or sensitive structures?

• Are waterproofing and durability (concrete cover, exposure class) considered for below-ground concrete?

• Does the footing thickness satisfy both punching shear and bending requirements with adequate margin?

• Have constraints like property boundaries, underground services, and adjacent basement walls been accounted for?

• Is there a clear summary table showing column loads, footing sizes, bearing checks, and governing shear/bending ratios?

Owner’s Checklist for Reviewing Pile and Pile Cap Designs

• Which pile type is proposed – driven precast, bored, CFA, steel H-section, or micropile – and why?

• What is the target working load per pile and the factor of safety or model factor applied?

• Has pile group efficiency been considered for closely spaced piles?

• Are static or dynamic pile load tests planned, and at what percentage of design loads?

• What pile cap thicknesses and reinforcement are proposed, and how will these be inspected before casting?

• How will nearby structures, utilities, or MRT tunnels be protected from vibration and settlement during piling?

• Does the report show the load distribution to each individual pile, and is the most heavily loaded pile within capacity?

• Are anchorage lengths for column and pile reinforcement into the cap clearly specified?

• Has the engineer confirmed compliance with BCA/LTA/JTC submission requirements and the Singapore National Annex?

• If bored piles are specified, what integrity testing is planned to detect hidden construction defects?

Where Stellar Structures Can Help

• Independent review of existing foundation calculations and drawings for due diligence, acquisition, or change-of-use assessments.

• Concept optimisation studies comparing pad footings versus pile foundations for new infrastructure or building projects, balancing cost, risk, and programme.

• Integrated design and authority submission packages in Singapore (BCA, URA, LTA, JTC, PUB, SCDF) including structural, civil, and architectural coordination.

• On-site assessment and remedial design for foundation issues such as excessive settlement, unexpected ground conditions, or load changes to existing structures.