When Temperatures Drop: Protecting Equipment and Jobsites from Changing Conditions

Late fall brings unpredictable weather to construction jobsites. Warm afternoons can quickly give way to freezing overnight temperatures, creating challenges for equipment, materials and jobsite operations. Even when daytime conditions seem favorable, overnight temperature drops can lead to frozen components, equipment failures and unexpected hazards the following morning.

Taking a few precautions at the end of each workday can help prevent costly damage, reduce downtime and keep crews working safely.

Prepare Equipment for Overnight Temperature Drops

• Check Fluids and Coolant: Verify that engine coolant provides adequate freeze protection. Inspect hydraulic fluids, lubricants and diesel fuel to ensure they are appropriate for colder operating temperatures.
• Protect Batteries: Cold temperatures reduce battery performance. Inspect connections, check battery condition and ensure equipment is ready for reliable morning starts.
• Drain and Protect Water Systems: Drain hoses, pumps, tanks and other water-containing equipment when freezing temperatures are expected. Trapped water can expand and damage components.
• Inspect Tires and Tracks: Temperature changes can affect tire pressure and equipment performance. Check tires, tracks and undercarriages before operation.
• Follow Cold-Weather Startup Procedures: Allow equipment to warm up according to manufacturer recommendations before placing it under heavy loads.

Secure the Jobsite Before Leaving

• Protect Exposed Materials: Store temperature-sensitive products properly and protect concrete materials, adhesives, coatings and other supplies from freezing.
• Check Drainage: Remove standing water from work areas where possible. Water left overnight can freeze, damage surfaces or create hazards for morning crews.
• Secure Temporary Water Lines: Drain or insulate exposed pipes, hoses and temporary plumbing systems.
• Monitor Excavations and Soil Conditions: Repeated freezing and thawing can affect soil stability. Inspect excavations, slopes and protective systems before work resumes.
• Review Weather Forecasts: Pay attention to overnight lows, not just daytime highs, and adjust work plans accordingly.

Start Each Morning with a Fresh Assessment

Conditions can change significantly between the end of one shift and the beginning of the next. Before starting work, supervisors and equipment operators should inspect equipment, access routes, excavations and work surfaces for hazards created overnight.

Pay particular attention to frozen controls, damaged hoses, unexpected leaks and changes in ground conditions. Never force frozen equipment components or operate machinery that may have been damaged by freezing temperatures.

Make Cold-Weather Preparation a Daily Habit

A few minutes spent preparing equipment and securing the jobsite at the end of the day can prevent hours of downtime, expensive repairs and potentially serious injuries.

Remember: A warm afternoon does not guarantee a safe start the next morning. Plan for overnight temperature changes, protect equipment and materials, and reassess conditions before work begins.