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An infection-control risk assessment (ICRA) is a project-specific planning process hospitals use before construction, renovation, repair, or demolition to identify how work could expose patients to dust or moisture—and to decide what containment, coordination, and monitoring the project needs. It connects the work plan to the people and spaces that could be affected, including areas beyond the construction footprint.
What an ICRA does in a hospital construction project
Construction can disturb materials, generate dust, introduce moisture, and change airflow. In a healthcare facility, those changes may affect patients who are more susceptible to airborne or environmental hazards. An ICRA helps the facility and project team identify those potential exposures before work begins and plan measures to contain dust or moisture. The Centers for Disease Control and Prevention (CDC) describes the assessment as a step to take before repairs, demolition, construction, or renovation. CDC air and ICRA guidance
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An ICRA is not a universal checklist that assigns the same controls to every project. Its conclusions depend on the work’s type, location, extent, nearby care functions and patients, and the way air moves through the facility. The assessment informs project decisions; it does not replace applicable regulations, facility policies, adopted standards, or the project team’s engineering and construction planning.
The practical value is the link between risk and action. Rather than treating dust control as a generic contractor task, the team considers where dust or moisture could travel, who could be exposed, and which barriers, engineering controls, work arrangements, and monitoring are appropriate for that specific job.
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When to conduct the assessment and who should take part
Complete the ICRA before work starts, while there is still time to adjust the scope, sequence, containment plan, and coordination with clinical operations. CDC recommends that a multidisciplinary team coordinate construction and renovation from the outset and include infection-control staff. A facility may also need clinicians, other care providers, facilities and engineering personnel, and project representatives to contribute the information relevant to their roles. CDC construction recommendations FGI application guidance
The team needs to understand both the proposed work and the facility context. Construction personnel can explain activities, locations, and sequencing; clinical and infection-prevention staff can identify care functions and vulnerable populations; facilities personnel can explain building systems and airflow conditions. The exact team and process should follow facility policy and applicable requirements rather than an assumed universal membership list.
Facility Guidelines Institute (FGI) guidance places ICRA within wider safety risk assessment and project planning. It describes a functional program and safety risk assessment during planning and design, with clinicians, infection preventionists, and other care providers engaged. That broader planning helps the organization decide how new or renovated spaces can support its infection-prevention practices. FGI application guidance
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Define the area of risk, not just the work zone
The construction footprint is the starting point, not necessarily the full boundary of the assessment. CDC notes that nearby patient-care areas, supply storage, and spaces on floors above or below may need consideration. Whether they are relevant depends on the project and how its effects could reach those spaces. CDC air and ICRA guidance
For a useful boundary, the team should consider the location and extent of the work alongside pathways for dust, moisture, and air movement. A barrier that protects the immediate work area may not address a route through a shared corridor, ventilation pathway, building opening, or adjacent space. Likewise, a nearby space may warrant attention even if no construction activity occurs inside it.
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- Work location: Determine whether activities are inside the facility or outside it, and identify relevant openings, shared spaces, and building connections.
- Care and support spaces nearby: Identify patient-care areas and supply storage that could be affected, including relevant spaces on other floors.
- People and functions: Consider the patients and clinical services near the work, especially areas serving immunocompromised patients.
- Potential pathways: Consider how dust, moisture, or altered airflow could move from the job to occupied or operational areas.
These are scoping questions, not a substitute for a site-specific assessment. The CDC guidance does not prescribe one fixed radius or boundary for every hospital project.
How findings determine containment and work controls
After identifying credible exposure pathways, the team selects controls suited to the location and scope. CDC distinguishes between outdoor and internal work in its examples: outdoor projects may require sealing windows and vents and keeping doors closed or sealed; work inside a facility may need barriers and engineering controls to contain dust or moisture and clean air in and around the work site. These are examples, not a mandatory equipment package for every job. CDC air and ICRA guidance
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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11| Project consideration | Why it matters | Planning implication |
|---|---|---|
| Outdoor work | Openings can provide a route for outdoor dust or air to enter occupied areas. | CDC gives sealing windows and vents and keeping doors closed or sealed as examples. The project team determines what is appropriate for the site. |
| Internal work | Work can generate dust or moisture near patient-care and support spaces. | Barriers and engineering controls may be needed to contain contaminants and clean air in and around the work site. |
| Nearby vulnerable patients | Some care populations may be more susceptible to airborne risks. | Depending on location and scope, the team may need to coordinate work differently or consider patient relocation. |
| Airflow and pressure relationships | Pressure differences and ventilation changes can affect whether air and dust move beyond the work zone. | Include building airflow conditions in the assessment and coordinate any relevant engineering controls with facility personnel. |
| Work duration and adherence | Controls must remain effective as the project proceeds, not only when barriers are installed. | Plan worker and staff education and appropriate ongoing adherence monitoring. |
The assessment should lead to a defined control approach, but CDC’s cited guidance does not establish a universal list of machines, barrier types, or pressure targets that applies to all sites. For example, a portable air-cleaning device should not be treated as a stand-alone substitute for a facility-specific containment and engineering plan. Selection and use of equipment belong within the ICRA and the facility’s project controls.
Why airflow and pressure deserve explicit attention
Barriers alone do not explain every route by which contaminants might move. Airflow patterns and pressure differentials can influence whether air travels into or out of a work area. A construction-related ventilation change can create conditions in which unfiltered outdoor air enters a building through openings, illustrating why the assessment should account for building systems as well as visible dust.
CDC recounts a construction-associated depressurization event in a building housing hematopoietic stem cell transplant (HSCT) patients. During that example, 12 of 25 HSCT-patient rooms had reported pressure readings ranging from 0.1 Pa to 5.8 Pa, and unfiltered outdoor air flowed into the building through doors and windows. These figures describe that reported investigation, not an acceptable operating range, a general construction risk rate, or a universal pressure threshold. CDC air and ICRA guidance
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For project planning, the lesson is to identify relevant air pathways and coordinate with the people responsible for facility ventilation and engineering. The cited example does not establish how often construction causes infection or quantify the risk for other projects. It shows why changes in pressure and ventilation should be assessed in context instead of inferred from the construction footprint alone.
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The ICRA is also an operational planning tool. A project beside a unit caring for immunocompromised patients may call for different coordination from work in a less sensitive location. CDC notes that patients may need relocation depending on the construction’s location and extent, especially when work is in or near units caring for immunocompromised patients. The assessment should therefore bring clinical decision-makers into the planning rather than leave patient impacts solely to the contractor. CDC air and ICRA guidance
When considering relocation or work sequencing, the team should connect the proposed activity to the specific care areas that may be affected. The available guidance supports considering relocation where warranted; it does not prescribe a single relocation trigger or a fixed distance from construction. Those decisions depend on the project and the facility’s assessment.
Coordination also includes communicating relevant airborne risks and control methods to healthcare staff in immunocompromised patient-care areas. CDC recommends education for both construction teams and healthcare staff in those areas. Clear communication helps those responsible for the work and the care environment understand the controls and their responsibilities. CDC construction recommendations
Put responsibilities, training, and monitoring into the project plan
Risk controls are only useful if the people performing and overseeing the work understand them and follow them. CDC recommends educating construction workers and healthcare staff about airborne risks and control methods. It also describes daily monitoring of worker adherence to infection-control guidance in and around the work site for the project’s duration. The facility should define who performs the monitoring, how issues are communicated, and how corrective action is handled in accordance with its own project process. CDC construction recommendations CDC air and ICRA guidance
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CDC recommends including mandatory infection-control adherence agreements in construction contracts, with mechanisms to correct noncompliance. This makes infection-control obligations part of the contractor relationship rather than an informal expectation. The project team should ensure the contract provisions align with the facility’s requirements and identify how observed problems are addressed. CDC also recommends that the multidisciplinary team produce and maintain summaries of its work. CDC construction recommendations
- Before mobilization: Communicate the applicable controls and airborne risks to construction personnel and relevant healthcare staff.
- During the job: Monitor adherence as appropriate, including the daily monitoring described in CDC guidance, and use the project’s correction process when controls are not followed.
- Across the team: Keep summaries of multidisciplinary coordination and decisions so responsibilities and changes are documented.
- For surveillance: Conduct appropriate surveillance for airborne environmental disease as recommended by CDC, in keeping with the facility’s applicable practices.
The CDC recommendations do not specify a single documentation form or monitoring technology. Facilities should use their policies, applicable requirements, and project procedures to establish records and escalation routes.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Reassess when the work or conditions change
An ICRA is most useful when treated as a project control that remains connected to actual site conditions. If the planned activity, work area, sequence, or surrounding care context changes, the team should determine whether the original assumptions and controls still fit. The CDC material emphasizes assessment before work, coordination, adherence monitoring, and maintained team summaries; the facility’s procedures determine how changes are reviewed and recorded.
Monitoring can reveal a gap between the planned controls and what is happening at the site. A deviation should be handled through the contract and facility correction mechanisms rather than ignored until the next project milestone. If the circumstances change enough to alter potential exposure pathways, the team should revisit the relevant risk decisions and coordinate any necessary changes with clinical, infection-prevention, and engineering stakeholders.
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Restoration after water or wind damage presents a distinct planning need. Before restoration, CDC advises completing both a general construction ICRA and a water-management-for-construction ICRA. Once the facility returns to service, CDC advises frequent inspection for mold and clinical and laboratory surveillance for unusual clusters of environmental infection. CDC reopening guidance for water and wind damage
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This guidance makes restoration more than a continuation of ordinary construction planning: the damage and water-management context must be assessed as part of the work. The post-reopening inspection and surveillance recommendations extend attention beyond the construction phase and into the return to service.
A practical ICRA planning sequence
- Describe the proposed work. Define the repair, demolition, construction, or renovation activity, its location, scope, and anticipated sequence before work begins.
- Bring together the relevant team. Include infection-control staff and coordinate with clinicians, other care providers, facilities personnel, and project representatives who can explain the affected care functions, building conditions, and work plan.
- Map potential exposure areas. Consider the work zone along with adjacent patient-care areas, supply storage, and potentially affected spaces above or below.
- Assess patient and operational vulnerability. Identify nearby care populations and determine whether work location or extent calls for operational changes or consideration of relocation.
- Evaluate dust, moisture, and airflow pathways. Account for barriers, openings, ventilation, and pressure relationships that could influence movement beyond the work area.
- Select controls suited to the project. Determine the appropriate containment and engineering measures for the actual site and work rather than applying a generic equipment package.
- Assign responsibilities and contract expectations. Make infection-control adherence obligations and correction mechanisms clear to contractors and relevant facility personnel.
- Educate, monitor, and document. Communicate airborne risks and controls, monitor adherence during the project as appropriate, and maintain multidisciplinary summaries and relevant surveillance.
This sequence organizes the decisions described in CDC and FGI guidance; it is not a replacement for a facility’s required ICRA form, approval process, or applicable jurisdictional rules.
What an ICRA does not establish by itself
An ICRA does not provide a one-size-fits-all equipment schedule, universal barrier design, fixed distance from patients, or pressure threshold for every hospital project. The cited CDC pages describe risk factors and examples, while FGI situates ICRA within broader facility planning. Actual controls and compliance obligations depend on the project, the organization’s policies, relevant adopted standards, and applicable state and local requirements. CDC notes that state and local requirements have a role in ventilation recommendations. CDC recommendations FGI application guidance
The cited sources are U.S.-focused guidance and should not be read as a project-specific compliance determination. For a live project, the facility team should verify the current requirements that apply to its location and use its established processes. The CDC recommendations page notes that edits made in February 2017 clarified wording without changing the intent of those recommendations.
How to judge whether the assessment is useful
A useful ICRA connects each material risk to a decision the team can carry out and oversee. The project team should be able to explain what activity is being assessed, which spaces and people could be affected, how dust or moisture might travel, what airflow issues matter, which controls are selected, and who is responsible for maintaining and monitoring them.
Quick Recap
- The assessment was completed before the relevant work began.
- Infection-control staff and other appropriate stakeholders contributed to coordination.
- The scope considers potentially affected areas beyond the construction boundary.
- Control choices reflect project location, work type and extent, patient vulnerability, and airflow implications.
- Education, adherence monitoring, correction procedures, and records have defined owners.
- Restoration after water or wind damage includes the additional ICRA and post-reopening considerations CDC describes.
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