Road cleaning and wheel wash obligations for site traffic

Mud on the road outside a construction site isn't just untidy it's a safety hazard, a nuisance, and often a breach of the site's obligations. Keeping the public road clean is a duty that sites are commonly required to meet, and wheel washing is the main way to do it. Here's what's expected and how it's achieved.

Why Tracked Mud Is a Problem

When site vehicles carry mud out onto the public road, it creates several problems at once. It's a safety hazard slippery when wet, dangerous for cyclists and motorcyclists, and reducing grip for all traffic. It's a nuisance to residents and other road users. And it's an environmental issue: mud washed off the road into road gullies carries sediment into the drainage system and on to watercourses. So keeping mud off the road is a safety, amenity and pollution matter combined.

Wheel Wash and Its Role

The primary control is a wheel wash at the site exit a system that cleans the mud off vehicle wheels (and sometimes the vehicle body) before they leave onto the public road. By taking the mud off at the source of the problem, a wheel wash stops it being carried out in the first place. The type of wheel wash suits the site and its traffic, and it needs to be positioned and used so that vehicles actually pass through it before reaching the road. It's the front line of keeping the road clean.Washing vehicle wheels before they reach the public road is also an important road-safety measure.

The Duty to Keep Roads Clean

• 1
  Sites are generally required to keep the public road clean and free of deposited mud and debris.
• 2
  This is commonly imposed as a planning condition and is enforced.
• 3
  Wheel washing prevents it at source; road sweeping and cleaning deal with what still gets out.
• 4
  Mud must be cleaned promptly, not left to build up or wash into drains.

Meeting Planning Conditions

Frequently Asked Questions

• Do construction sites have to keep the road clean?
  Generally yes - sites are required to keep the public road free of mud and debris tracked out by their traffic, and this is commonly a planning condition that's enforced. Mud on the road is a safety hazard, a nuisance, and a source of sediment pollution when washed into road drains.
• What is a wheel wash and why is it needed?
  A wheel wash is a system at a site exit that cleans the mud off vehicle wheels before they reach the public road, stopping mud being tracked out at source. It's the main control for meeting the duty to keep the road clean, backed up by road sweeping for anything that still gets out.
• Why is mud on the road an environmental issue?
  Because mud washed off the road into road gullies carries sediment into the drainage system and on to watercourses, causing sediment pollution as well as being a safety hazard and nuisance. Keeping it off the road with wheel washing and prompt cleaning protects the receiving water as well as road users.