Night Concrete Pours

Night concrete pours combine the hazards of concrete placement with the additional risks of darkness, fatigue, and reduced visibility.
Adequate artificial lighting must illuminate the entire pour area, access routes, formwork, and the concrete pump location.
Fatigue management is critical — concrete pours can last many hours and tired workers make mistakes with serious consequences.
Communication between the pump operator, placing gang, and supervisor must use radios and clear hand signals in low light.
Concrete delivery wagons arriving and departing in darkness need banksman control and additional lighting at the access point.
Formwork and falsework inspections must be completed before the pour starts, with particular attention to lighting conditions.
Slip and trip hazards from wet concrete, hoses, cables, and tools are harder to see and avoid in artificial light.
PPE for night pours includes all standard concrete PPE plus reflective hi-vis clothing for visibility in artificial light.
Noise restrictions may limit the use of vibrating pokers and other equipment during night hours in residential areas.
Emergency procedures including first aid, evacuation routes, and rescue must account for darkness and reduced staffing.

Reduced visibility	Darkness hides trip hazards, formwork defects, and concrete overflow — lighting must cover every part of the pour area.
Fatigue risk	Multi-hour night pours exhaust workers, reducing concentration and increasing errors that cause falls, burns, and formwork failures.
Communication	Noise and darkness make verbal communication unreliable — radios and pre-agreed signals prevent critical miscommunication.

Do

Don't

Install adequate lighting covering the full pour area, access routes, and pump location.
Plan crew rotations and breaks to manage fatigue throughout the night pour.
Use radios for communication between the pump operator and the placing gang.
Provide banksmen with illuminated wands for concrete wagon guidance in darkness.
Complete formwork and falsework inspection under adequate lighting before the pour.
Wear reflective hi-vis clothing in addition to standard concrete pour PPE.
Clear slip and trip hazards regularly — they are harder to spot in artificial light.
Follow noise restrictions for vibrating equipment during night hours in residential areas.
Brief the team on emergency procedures accounting for darkness and reduced staffing.
Monitor concrete quality, formwork condition, and worker fatigue throughout the pour.

DON'T begin a night pour without adequate artificial lighting covering the entire area.
DON'T push workers through exhaustion — enforce rest breaks and crew rotations.
DON'T rely on shouting for communication — use radios in noisy, dark conditions.
DON'T allow concrete wagons to arrive without banksman control and lighting at the gate.
DON'T pour into formwork that has not been inspected under adequate lighting conditions.
DON'T work at a night pour without reflective hi-vis clothing for visibility.
DON'T ignore housekeeping — wet concrete and trailing hoses are lethal trip hazards in the dark.
DON'T exceed permitted noise levels during night pours in noise-sensitive areas.
DON'T assume daytime emergency procedures work at night — adapt them for darkness.
DON'T continue pouring if lighting fails — stop work until illumination is restored.

See also: Night Working Safety Awareness | Concrete Pour Safety

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