Temporary access on sensitive ground. Protect the land, keep the works moving.
Utility and civils routes cross farmland, verges, tree roots, wet ground and protected sites. The temporary access has to fit commitments already made for soils, trees, water and wildlife. This guide sets out what UK guidance says, what to check before mobilising, and where matting fits and where it does not.
By Mark Rowntree, Commercial Director, TrackMatz · LinkedIn · Editorial review 4 October 2026
Matting keeps plant off the soil and lifts out when the works finish, but it does not replace a permit, a tree protection design or a watercourse crossing. Start from the scheme's environmental commitments, map the constraints, match the protection to the load, keep plant on the route and record the ground at installation and uplift. In England, work near main rivers and on SSSIs can need permission before it starts.
01 · WHAT IS AT STAKE
The access route is part of the environmental plan.
Cable routes, pipelines and overhead line works often cross land the scheme has promised to look after: farmland that goes back into production, tree roots beside the route, ditches and rivers, and sometimes protected sites.
The temporary access has to fit inside those promises. Matting spreads plant loads across the surface, keeps tyres and tracks off the soil and lifts out when the works finish. It is one tool in the plan, not the plan itself, and the class and layout still have to suit the ground and the loads.
02 · THE GUIDANCE
What UK guidance actually says.
No single UK standard covers temporary access matting on sensitive ground. The guidance below comes from soil, tree, water, protected site and invasive plant sources. Each is quoted with the scope it was written for, so you can judge how far it applies to your route.
Point
What the source says
Source and scope
Keep traffic to set routes
Confine movement of trucks or dumpers to designated temporary haul routes.
The code advises against stripping or handling soil during or after heavy rainfall, or when there are pools of water on the surface. It is soil handling guidance, not a ban on all site work in wet weather.
For light plant up to 2 tonnes: proprietary interlinked ground protection boards on a compression-resistant layer over a geotextile. Heavier vehicles: an engineered system designed with arboricultural advice.
Three zones around each tree: Prohibited (1 metre from the trunk), Precautionary (4 times the tree circumference) and Permitted. In the Precautionary Zone, prevent all vehicle movement, plant use or material storage, or install suitable ground protection before any activity.
Statutory undertakers such as water and electricity companies must request assent from Natural England for activities likely to damage an SSSI. Natural England usually replies within 28 days to give or decline assent, and no written reply within 28 days should be taken as assent declined.
A flood risk activity permit can be needed within 8 metres of a main river bank, or of a flood defence or culvert on a main river (16 metres for both if the river is tidal), and within 16 metres of a sea defence. Ordinary watercourses go to the council or internal drainage board.
Establish designated haulage routes, prevent plant movement through invasive plant areas, and use Check, Clean, Dry with wash-down stations where needed.
Where heavy plant may have to cross a vulnerable service, provide defined crossing points, keep them to a minimum, mark them clearly and allow no crossing elsewhere. Where an existing road does not protect the service, reinforce the crossing with sleepers, steel plates or a reinforced concrete raft as necessary. The owner or operator of the service advises on the reinforcement.
Construction traffic crosses only at previously agreed locations, fenced on both sides. The pipeline is protected at the crossing by temporary rafts of sleeper or reinforced concrete construction at ground level, and the network decides the raft from ground conditions, vehicle types and crossing frequency.
England first. The permit and protected site rules above are for England. Natural Resources Wales, SEPA and NatureScot run their own regimes. Check the rules for the country the route is in.
03 · MATS OR STONE
A temporary route should come out as cleanly as it went in.
A stone haul road usually means stripping topsoil, laying a membrane, importing aggregate, then digging it all out again and reinstating the land. On a long programme with very heavy, constant traffic that can still be the right answer.
A matted route sits on the surface. Panels are placed, connected, inspected and lifted, so there is no aggregate to import or dispose of where the ground and loads allow mats without a stone base. Some routes need a base under the mats, a heavier class, or both.
We do not publish carbon savings figures. We show the comparison for your route, with the assumptions written down, so the scheme can make the call.
TM200 MegaDeck HD+. Supplier application image.
04 · BEFORE MOBILISING
Seven checks before the first mat goes down.
Read the commitments.Get the parts of the environmental management plan, soil plan and tree method statement that cover temporary access.
Map the constraints.Mark root protection areas, watercourse buffers, protected site boundaries, invasive plant areas and buried services on the layout.
Check the permissions.Confirm any Natural England assent, flood risk activity permit and landowner agreement before the programme is fixed.
Match the protection to the load.Choose the class, base and geotextile for the plant and the ground. Near trees, heavy vehicles need the engineered approach the arborist agrees.
Keep plant on the route.Fence or mark the edges. Plant that tracks off and back on damages the margins and carries mud onto the deck.
Clean in, clean out.Follow Check, Clean, Dry where invasive plants are present. Returned mats are washed and decontaminated at our yard before they go out again.
Record the handback.Photograph the route at installation and uplift, and agree the handback with the landowner or scheme lead.
Send the layout, the constraint plans and any permit conditions with your enquiry. We plan the matting to them and say where a route needs more than matting.
05 · LIMITS
Where matting fits. Where it does not.
Matting fits
Temporary routes and working areas over grass, farmland and verges.
Phased routes that move forward with the works.
Ground where the scheme wants no imported stone.
Light plant in root protection areas, as part of the agreed tree protection.
Crossing points over buried services, where the asset owner accepts mats as the protection.
Matting does not replace
The asset owner's approval and protection requirements at a service crossing.
A designed crossing or bridge over a watercourse or culvert.
An engineered system for heavy vehicles in a root protection area.
Any permit, assent or landowner agreement the work needs.
BURIED SERVICES
Mats over cables and pipes: the asset owner decides.
Utility routes often have to cross live services. Matting can be part of a protected crossing, but the crossing point, the protection and any conditions are set by whoever owns the service. Ask the owner before the layout is fixed.
Defined crossing points.Keep them to a minimum, mark them clearly and allow no crossing elsewhere along the service (HSG47, paragraph 69).
Reinforce where needed.Where the existing surface does not protect the service, HSG47 names sleepers, steel plates or a reinforced concrete raft. The owner advises on the type.
High pressure gas is stricter.The gas networks' SSW22 specifications require agreed, fenced crossing points protected by temporary rafts of sleeper or reinforced concrete at ground level, with the network choosing the raft. Mats are not on that list, so the network decides whether they can form part of the crossing.
What we supply.A site survey, tailored install drawings, the mat specification and RAMS for the owner's review, built around your service plans, plant weights and crossing locations.
TM200 MegaDeck HD+ route kept to a set line beneath an overhead power line. Supplier application image.Ground photographed straight after a TM50 roadway was uplifted: the record that supports a clean handback.
06 · SEND THE PLAN
What we need to plan a route on sensitive ground.
The better the constraint information, the closer the first proposal will be to the route the scheme can actually use.
Route and site
Site address, postcode and the route or working area marked on a drawing.
Environmental commitments
Extracts from the environmental, soil and tree plans that cover temporary access.
Constraint plans
Trees, watercourses, protected sites, invasive plants and buried services.
Plant and programme
Plant and vehicles, traffic frequency, and the install and removal dates.
Permit conditions
Any permit, assent or landowner conditions already issued for the work.
Ground and handback
Photographs of the ground now, and how the land must be handed back.
The objective is a route that fits the scheme's commitments, not a generic mat count. Where a section needs more than matting, we say so.
07 · CLEAR ANSWERS
Sensitive ground questions clients actually ask.
How do you protect soil during construction access?
Keep plant on designated haul routes, do not work soils during or after heavy rain or when water is pooling on the surface, and decompact the subsoil before topsoil goes back, as Defra's construction soils code sets out. Matting helps by keeping tyres and tracks off the soil on the agreed route, but heavy or repeated traffic on wet ground can still compact it, so record the condition at installation and uplift.
Do ground protection mats damage grass?
Mats spread the load and keep tyres and tracks off the surface, but they still affect the ground beneath them. Grass under mats loses light and can yellow on longer hires, and heavy or repeated traffic on wet ground can still compact the soil. Plan the duration, inspect the route and record the condition at installation and uplift.
Can mats be used inside a root protection area?
Only as part of the tree protection agreed for the scheme. As quoted in published arboricultural method statements, BS 5837:2012 describes interlinked ground protection boards on a compression-resistant layer over a geotextile for light plant up to 2 tonnes, and an engineered system designed with arboricultural advice for heavier vehicles. For utility works, Street Works UK Volume 4 asks for suitable ground protection before any vehicle or plant activity in a tree's Precautionary Zone, and keeps the 1 metre Prohibited Zone clear. Follow the arboricultural method statement for the site.
Do I need a permit to lay mats near a river?
In England, work within 8 metres of a main river bank or of a flood defence on a main river (16 metres for both if the river is tidal), or within 16 metres of a sea defence, can need a flood risk activity permit from the Environment Agency. Ordinary watercourses are handled by the local council or internal drainage board. Wales and Scotland have their own regulators. Check before the layout is fixed.
Do I need permission for works on an SSSI?
Statutory undertakers such as water and electricity companies must request assent from Natural England before activities likely to damage an SSSI. A reply is not the same as assent: Natural England usually replies within 28 days to give or decline it, and no written reply within 28 days should be taken as assent declined. Build that time into the programme and keep the route inside the agreed area.
Can mats go over buried cables or pipes?
Often, yes, but only at crossing points agreed with the owner of the service. HSE guidance HSG47 says heavy plant should cross vulnerable services only at defined, clearly marked crossing points, reinforced where needed with sleepers, steel plates or a reinforced concrete raft, and that the owner or operator advises on the reinforcement. Whether mats are acceptable, and in what build-up, is the asset owner's decision. High pressure gas pipelines carry stricter rules: the gas networks' SSW22 specifications call for agreed, fenced crossing points protected by sleeper or reinforced concrete rafts, with the network choosing the raft. We supply a site survey, tailored install drawings, the mat specification and RAMS for the owner's review.
How do you stop mats spreading invasive plants?
Keep invasive plant areas out of the layout where possible, keep plant on designated routes, and follow Check, Clean, Dry with wash-down where needed. Tell us about any invasive plants on site before delivery so the layout and the uplift can be planned around them.
Are mats better for the environment than a stone road?
It depends on the ground, the loads and the duration. Where the route can run on mats without a stone base, there is no topsoil to strip and no aggregate to import, dig out and dispose of. Where a base is still needed, that comparison changes. We do not publish carbon savings figures.
08 · PRIMARY SOURCES
References that can be checked directly.
Defra, Construction Code of Practice for the Sustainable Use of Soils on Construction Sites (2009) Soil handling, haul routes, wet soils and reinstatement on construction sites. Read the code.
BS 5837:2012, clause 6.2.3.3 Trees in relation to design, demolition and construction. Quoted here from a published arboricultural method statement; the standard itself is available from BSI. Read the method statement.
Street Works UK, Publications Volume 4, Issue 3 (2026) Guidelines for the planning, installation and maintenance of utility apparatus in proximity to trees, formerly NJUG Volume 4. Sets the Prohibited, Precautionary and Permitted zones. Read the guidelines.
Natural England, SSSI assent for works Public body responsibilities and how statutory undertakers request assent for works. Read the guidance.
Environment Agency, flood risk activity permits When work near main rivers, flood defences and sea defences needs a permit in England. Read the guidance.
CECA, Invasive Non-Native Plants (June 2026) A practical handbook for site managers and supervisors on civils sites. Read the handbook.
HSE, HSG47 Avoiding danger from underground services (third edition, 2014) Paragraph 69 covers defined crossing points for heavy plant over vulnerable services and how they are reinforced. Read HSG47.
Wales & West Utilities, T/SP/SSW/22 (April 2026) Specification for safe working near gas pipelines above 2 bar, requirements for third parties. Section 8 covers construction traffic crossings and temporary rafts. Read the specification.
National Gas Transmission, planning consultation response (July 2026) Applies the same crossing requirements to the national transmission network: agreed crossing points, prior permission and monitored works under T/SP/SSW22. Read the response.
Environment Agency, prevent Japanese knotweed from spreading Legal duties and practical controls for knotweed on and off site. Read the guidance.
Sources checked 4 October 2026, with the Natural England and Environment Agency guidance rechecked 5 October 2026. This guide supports access planning and procurement discussion. It is not legal, permit or arboricultural advice, and it is not a temporary works design.
NEXT STEP
Bring us the route, the constraints and the programme.
