A launching girder placing deck segments on a viaduct across a lake

Photo: 42 Walkers, CC BY 4.0, signs edited

Concept site: an example firm

Heavy civil contractor

We moveearth.

We build viaducts, sea walls, deep foundations and earthworks with our own machines, our own people and our own concrete. Fewer hand-overs, and one team to answer to.

Projects

Six jobs, from a viaduct to a sea wall. Each one says where it was, who it was for, what we built and the hardest part.

Concept: names, places and facts are examples
Lead projectKestrel Viaduct: concrete piers and a half-built deck, with red steel formwork in the front
Photo: Andrej Sopotnik, CC BY-SA 4.0
RailBridge2022 to 2024

Kestrel Viaduct

A new rail viaduct across a river valley. We drove the piles, cast the piers and placed a precast deck from above.

Place
River valley, northern England
Client
Regional rail authority
Scope
Bored piles, reinforced concrete piers, precast deck placed by launching girder, drainage
Hard part
No ground access under the main span, so every segment went in from the deck above.
  • A piling rig drilling with an auger in a city-centre basement dig
    Photo: Ingolfson, public domain
    FoundationsCity centre2020 to 2021

    Helix Tower Substructure

    A basement dug beside occupied buildings, with ground movement read every day.

    Client
    Private developer
    Scope
    Secant piled wall, basement dig, raft foundation
  • Aerial view of new slip roads and earthworks at a motorway junction
    Photo: Government of Indonesia, public domain
    HighwaysEarthworks2021 to 2023

    Northgate Interchange

    The trunk road stayed open while we rebuilt the junction around it.

    Client
    National highway operator
    Scope
    Bulk earthworks, two slip roads, drainage, two culverts
  • A closed seafront promenade behind site fencing, with the sea wall works beyond
    Photo: David Anstiss, CC BY-SA 2.0
    MarineEast coast2022 to 2023

    Tideway Sea Wall

    Pours timed to low water, twice a day, for eleven months.

    Client
    Local council, coastal protection
    Scope
    Rock armour, new concrete wave wall, promenade rebuild
  • A new track bed in a rail cutting, with retaining walls on both sides and an excavator on the slope
    Photo: M J Richardson, CC BY-SA 2.0
    RailEarthworks2022

    Ferro Rail Cutting

    All work in weekend closures, with the line handed back each Monday.

    Client
    Rail infrastructure owner
    Scope
    Slope stabilisation, retaining walls, new track bed drainage
  • A riverside town-centre building site, with a tower crane over new housing blocks in scaffolding
    Photo: Ray Gillham (name in the file). Source not traced yet.
    FoundationsEarthworks2021 to 2022

    Verand Wharf

    A busy town centre on one side and the river on the other, so every lorry had a booked slot.

    Client
    Housing developer
    Scope
    Site clearance, piled foundations, ground beams, drainage

What we build ourselves

Our own plant, crews and concrete. One team runs the programme and answers for it.

Our own fleet (example)

  • Piling rigs
  • Crawler cranes
  • 360 excavators
  • Dumpers
  • Rock drills
  • Concrete pumps
  • Earthworks

    Bulk dig, cut and fill, ground treatment and site platforms.

    Seen on: NorthgateFerro

  • Bridges and structures

    Viaducts, underpasses and marine structures, from piles to deck.

    Seen on: Kestrel

  • Deep foundations

    Bored and secant piles, basements and raft foundations.

    Seen on: HelixVerand

  • Reinforced concrete

    In-situ and precast work, poured by our own concrete crews.

    Seen on: KestrelTideway

  • Highways and rail

    Roads, junctions and rail civils, built around live traffic and closures.

    Seen on: NorthgateKestrelFerro

  • Drainage and utilities

    Deep drainage, SuDS and utility diversions on live sites.

    Seen on: VerandFerro

Our machines. Our drivers.

A drill rig breaks rock while a digger clears it. No hired-in plant waiting on a phone call.

Photo: W.carter, CC BY 4.0

Safety and assurance

Before you appoint a contractor, you need to check they can do the work safely. This is the list we would give you to check.

Concept placeholder

Bastion is not a real firm, so it holds none of these. On a real site, each row would name the scheme, give the certificate number and link to the public register where you can check it.

Six checks a buyer should see
SchemeWhat it showsCertificate
Safety pre-qualification (SSIP member scheme)The firm has passed a health and safety check for this type of work.Placeholder: scheme name, certificate ID, expiry date
ISO 45001 health and safetyHealth and safety is run through a written system that is audited every year.Placeholder: certifying body, certificate ID
ISO 9001 qualityWork follows a written quality system that an outside body audits.Placeholder: certifying body, certificate ID
ISO 14001 environmentEffects on ground, water and neighbours are planned for and audited.Placeholder: certifying body, certificate ID
RISQS (rail supplier scheme)The firm has passed the rail industry's supplier check, needed before working on or near the railway.RISQS: [concept: not certified]. Placeholder: RISQS number, audit date
Accident rateRIDDOR reportable injuries per 100,000 hours worked, with the year it covers and how it was counted.Placeholder: rate, year, definition

No logos are shown on purpose. A badge without a certificate number proves nothing.

Concept: an example firm and its way of working

One team from first dig to final pour

Bastion builds with its own machines, its own crews and its own concrete. We take jobs where the ground, the water or the traffic make the work hard.

The same site manager carries the job from start to hand-over. You know who to call, and so do we.

  • Self-delivery
    Own plant, crews and concrete on every job.
  • Own yard
    Machines kept and serviced in our own yard (example).
  • One site manager
    The same person from first dig to hand-over.
  • Open programme
    Shared with you every week, risks named.

Request a tender

Send the scope, the place and when you want to start. We reply with how we would build it: method, programme, plant and a price.

Tender desk

020 7946 0142 tenders@bastion.example Example number (Ofcom drama range) and example email
Sam Okafor
Pre-construction manager (fictional contact)
Yard
Riverside Works, EssexExample address
Office hours
Monday to Friday, 8am to 5pmExample hours

What happens next

  1. You send the scopeUse the form, or email the drawings.
  2. Sam calls youTo talk through access, ground and timing.
  3. We send a tenderMethod, programme, plant list and price.
Pick the closest match
For example, March 2027
Town or postcode
What needs building, rough sizes, and any access limits.

We ask for type, place and start date so the right estimator replies.