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UAE · Saudi Arabia · Qatar · India

Reliable Systems.
Resilient Cities.

WaterWastewaterStormwaterSurge1D / 2DNOC + Tender
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City-scale water, wastewater, stormwater and surge engineering masterplan
20 kmCurrent surge network
DN 2200Carbon-steel main
1D + 2DFlood modelling
4 marketsMiddle East + India

Engineering scope

How each system
is designed.

Critical checks, engineering decisions and deliverables—presented clearly.

Potable-water network and distribution designPotable water
01 / Pressurised networks

Potable, recycled & plant water

A reliable network that delivers the required flow and pressure at every critical node.

DiameterMaterialVelocityPressureFire flow
  • ADD, MDD, peak-hour, fire-flow and future-demand scenarios
  • Diameter selection from velocity, headloss, pressure and resilience checks
  • Minimum and maximum pressure verification to the applicable authority criteria
  • DI, HDPE, carbon steel or GRP selection by pressure, diameter, soil and corrosion risk
  • Pumps, tanks, pressure zones, PRVs, isolation and air-valve locations
Engineering outputs

Design basis · calibrated hydraulic model · HGL · pressure and velocity maps · pump and storage schedules · network plans/profiles · valve and chamber details · BOQ and specifications.

Sewerage and wastewater collection systemWastewater
02 / Gravity + rising mains

Sewerage & wastewater

Gravity and pumped systems sized for present loading, future growth and operational reliability.

Peak flowSloped/DVelocityHGL
  • Population, land-use, sewage-return, infiltration and inflow assessment
  • Average and peak flow using Babbitt, Harmon or authority factors
  • Diameter and gradient selection using d/D, capacity and minimum self-cleansing criteria
  • Maximum velocity, Froude number, surcharge, cover and hydraulic-grade checks
  • Manholes, drops, pump stations, wet wells and rising-main duty points
Engineering outputs

Flow schedule · SewerGEMS/InfoWorks model · longitudinal sections · HGL and surcharge review · manhole schedules · pump duty · rising-main calculations · drawings, BOQ and specifications.

InfoWorks hydraulic profile for stormwater and flood modelling1D / 2D flood modelling
03 / Rainfall + runoff

Stormwater drainage & flood

Catchment-led design that manages underground capacity and surface flood risk together.

RationalSCS-CN1D2DFlood depth
  • Catchment boundaries, imperviousness, runoff coefficients and time of concentration
  • IDF rainfall, return period, temporal profile and climate allowance
  • Rational Method or dynamic SCS-CN rainfall-runoff modelling
  • Inlet, pipe, channel, culvert, manhole, outfall and HGL capacity checks
  • 2D flood depth, velocity, hazard and exceedance-flow-path assessment
Engineering outputs

Catchment plan · hydrology calculations · 1D/2D model · network schedule · flood maps · HGL profiles · critical-location register · drainage layouts and profiles.

Underground concrete stormwater attenuation tank installationAttenuation storage
04 / Storage + controlled discharge

Attenuation tank design

Storage sized to hold the critical storm and release water within the permitted outfall rate.

VolumeRoutingFreeboardOutflow control
  • Allowable discharge, receiving-system level and tailwater confirmation
  • Inflow hydrograph and critical-duration storm assessment
  • Storage routing, required volume, operating level and freeboard
  • Orifice, weir, vortex control or pumped-discharge selection
  • Emergency overflow, access, ventilation, silt management and maintenance needs
Engineering outputs

Storage curve · inflow/outflow hydrographs · tank sizing · control-structure calculations · pump duty where required · GA, sections, MEP interfaces, BOQ and specification.

Large-diameter pressurised pipeline and surge-protection engineeringSurge protection
05 / Transient hydraulics

Surge analysis for rising mains

Transient protection for water, wastewater and stormwater pressure mains from DN 500 to DN 3000+.

Pump tripValve closureAir valveSurge vessel
  • Steady-state model, pump curves, operating levels and boundary validation
  • Power failure, pump trip/start, valve closure and emergency operating cases
  • Wave speed, pipe elasticity, pump inertia and control-valve characteristics
  • Maximum pressure, minimum pressure, vapour risk and transient envelope checks
  • Air/vacuum valves, surge vessels, flywheels, NRVs and control-logic optimization
Engineering outputs

HAMMER/InfoWorks transient model · worst-case envelope · node time histories · protection-option comparison · air-valve schedule · surge-vessel sizing · operating recommendations and report.

BIM utility coordination and clash-detection modelUtility coordination
06 / Corridors + approvals

Utility corridors, clashes & NOC

Buildable wet-utility corridors coordinated with roads, structures and dry utilities.

RTAUCDMClearancesClash matrixNOC
  • Horizontal and vertical corridor planning to local authority requirements
  • Cover, separation, crossing, access and protection-detail checks
  • Civil 3D, Navisworks and InfraWizard model coordination
  • Clash detection, issue register, ownership and resolved levels
  • Design NOC and construction NOC drawings with comment resolution
Engineering outputs

Coordinated plan/profile · corridor cross-sections · clash report · utility matrix · crossing and protection details · authority submission drawings · response-to-comments register.

Utility infrastructure construction and site coordinationDesign to construction
07 / Complete delivery support

Detailed design, cost, tender & construction

A coordinated package that carries the engineering basis into procurement and site delivery.

DrawingsCostBOQSpecificationsBid evaluation
  • Design reports, calculations, plans, profiles, schedules and standard details
  • Concept and pre-tender estimates, value engineering and risk allowances
  • Measured BOQ, material/workmanship specifications and equipment schedules
  • Bidder queries, addenda, compliance matrix and technical/commercial evaluation
  • RFIs, shop drawings, materials, site changes, testing and as-built support
Engineering outputs

Issue-ready design package · engineer’s estimate · BOQ · technical specifications · tender clarifications · evaluation report · construction-support and close-out records.

Current project

Al Ha’er
transmission system.

In progress

Transient surge analysis

Major Saudi water-infrastructure programme

20 kmNetwork length
DN 2200Pipe diameter
CSCarbon steel
Transient modelAir-valve selectionSurge-vessel sizingPlant-water systemPotable-water system
WABAGEngineering partner
NWCEnd client · Saudi Arabia

Selected project evidence

Recent
work.

Complex hydraulics, flood modelling and bid-stage engineering.

Saudi Arabia

Al Hadda · Al Arana · Riyadh East

Pressurised-system design and transient surge analysis supporting competitive bid submissions.

WABAGEnd client: NWC
Odisha, India

Jharsuguda Railway Yard

Catchment assessment, integrated 1D / 2D modelling and stormwater-network design.

Flood + drainageIndian Railways
West Bengal, India

Habra Municipality

Municipal catchment planning and stormwater drainage design.

Urban drainageClient: KMDA
West Bengal, India

Gobardanga Municipality

Municipal stormwater assessment and drainage-network design.

Urban drainageClient: KMDA
WABAGWater technology partner
NWCSaudi end client
Indian RailwaysPublic infrastructure
KMDAWest Bengal urban development

Typical programme

Fast, staged
delivery.

Final dates follow scope, data availability and authority route.

3–6 weeks

Master plan

Baseline · demand · constraints · options

4–6 weeks

Concept

Design basis · model · corridors · cost

6–10 weeks

Preliminary

Hydraulics · profiles · crossings · risk

10–18 weeks

Detailed

Models · drawings · BOQ · specifications

4–12+ weeks*

Design NOC

Submission · comments · coordination

3–6 weeks

Tender

Queries · addenda · bid evaluation

2–6 weeks*

Construction NOC

Interfaces · applications · approvals

Project duration

Site support

RFIs · shop drawings · testing · close-out

*Authority review periods are outside the consultant’s direct control.

Regional + digital readiness

Designed for
local approval.

Dubai Municipality WSARTA ROW / NOCAbu Dhabi USDM / UCDMNWC / KSA requirementsAshghal QSDDMKAHRAMAACPHEEOJal Jeevan Mission
Engineering platforms

WaterGEMS · SewerGEMS · HAMMER
InfoWorks ICM / WS Pro · Civil 3D
Navisworks · InfraWizard · HEC-RAS · GIS

Project brief ready?

Let’s solve the
hydraulics.

proposals@cpconsultancy.co.in ↗