Highways & Infrastructure built for adoption
Adoptable roads, sewers and highway works for residential and mixed-use developments — managed from pre-construction and technical approvals through to final sign-off.
- Pre-construction to adoption, one team
- SMAS & ISO-accredited systems
- Adoption records built as we go
- Midlands · South East · Home Counties
Infrastructure that drives the programme.
Roads, drainage and utilities aren’t peripheral works. They establish the infrastructure every subsequent trade relies upon — so they sit on the critical path.
Our approach combines early technical engagement, robust programming and controlled site delivery to protect both the groundworks package and the wider construction programme.
IronRock plans and delivers them accordingly. Groundworks that set the pace.
Three agreements. One accountable groundworks team.

New estate roads built to adoptable standards, sequenced around plot construction to keep access open and workfronts productive.
- Formation, capping & sub-base
- Highway drainage & attenuation
- Kerbs, carriageways & footways
- Street lighting infrastructure
- Inspection, testing & adoption
- Formation, capping & sub-base
- Highway drainage & attenuation
- Kerbs, carriageways & footways
- Street lighting infrastructure
- Inspection, testing & adoption

Connecting new developments safely into the live highway, with traffic management, permits and inspections planned from day one.
- Access junctions & roundabouts
- Widening & realignment
- Crossings, islands & cycleways
- Utility diversions & protection
- Final surfacing & reinstatement
- Access junctions & roundabouts
- Widening & realignment
- Crossings, islands & cycleways
- Utility diversions & protection
- Final surfacing & reinstatement

Foul and surface water systems, including complex deep drainage and attenuation, built to approved designs and adoption requirements.
- Deep foul & surface water sewers
- Manholes, chambers & flow controls
- Attenuation & SUDS interfaces
- Pumping station infrastructure
- CCTV surveys & as-built records
- Deep foul & surface water sewers
- Manholes, chambers & flow controls
- Attenuation & SUDS interfaces
- Pumping station infrastructure
- CCTV surveys & as-built records
Also delivered: estate roads, site access works, strategic infrastructure, footways & cycleways, street furniture and remedial works.
Construction is only part of the process.
Hold points, testing, material approvals and quality records are built into delivery — creating a clear route from first dig to final sign-off.
Designs, levels and temporary works interrogated before they reach site.
Working with engineers, statutory authorities and adopting bodies.
Sequenced around plots, utilities and logistics with defined hold points.
Highway Authority inspections, CCTV surveys and material approvals recorded.
Remedials completed, as-builts handed over, infrastructure adopted.

Early engagement. Better infrastructure delivery.
Highways and drainage decisions made in pre-construction shape programme, cost and buildability. Our commercial, design and construction teams get involved before works begin.
Challenging details, levels and sequencing before they become site constraints.
Simpler, lower-cost construction without compromising adoption requirements.
Highways, drainage, utilities and plots in one coordinated sequence.
Clear responsibility between groundworks, statutory undertakers and authorities.
Built with sign-off in mind, inspection and quality records kept throughout.

[Project name], [Location]
Client [Client]
Agreements [e.g. S38 / S104]
Scope [Roads, sewers, attenuation]
Outcome [Adopted on programme]
Related services
Optimised cut-and-fill to cut double handling, muck-away and imported fill.
Foundations, retaining walls, chambers and slabs within one package.
Controlled plot releases that keep superstructure moving.
Permanent boundaries and paving delivered early – fewer temporary measures.
Talk to our pre-construction team.
Share your drawings and programme. We’ll come back with buildability observations, sequencing thoughts and a route to adoption.

