Water & Wastewater — Core Service

Dams & Bridges

Engineering safe, durable water-retaining and river-crossing structures — from concrete and earthen dams to RCC, PSC, and steel bridges — designed to IRC, IS, and CWC codes for long-service-life infrastructure.

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40+
Dam & Bridge Projects
IRC & IS
Code Compliant Design
100 yr
Design Service Life
10+
States Served

OVERVIEW

Engineering for Water Storage & River Crossings

HRP Infra delivers integrated engineering for dams and bridges — two structure families that frequently share the same project site, hydrology, and foundation conditions. Our dam engineering covers earthen, masonry, and concrete gravity structures with full stability, seepage, and spillway design, while our bridge engineering spans RCC, prestressed concrete (PSC) girder, steel, and composite superstructures over rivers, canals, and reservoirs.

From hydrological and hydraulic studies through foundation engineering, structural design, and construction supervision, our team ensures every structure is safe, economical, and fully compliant with relevant Indian and international codes.

  • Dam & Spillway Structural Design
  • Bridge Superstructure & Substructure Design
  • Hydraulic & Scour Analysis
  • Foundation & Geotechnical Engineering
  • Detailed Project Reports (DPR) & GFC Drawings
  • Structural Safety & Rehabilitation Assessments
Our Services Request a Consultation
Dam and bridge structural engineering by HRP Infra in Ahmedabad Gujarat
IRC, IS & CWC Code Compliant

STRUCTURE TYPES

Dam Engineering vs Bridge Engineering

Two distinct structural disciplines that share hydrology, geotechnics, and site conditions. HRP Infra engineers both under one roof.

Dam Structures
Water-retaining & flow-control structures

Designed to safely impound water under hydrostatic, uplift, seismic, and silt pressures — with stability checks against overturning, sliding, and tension.

Includes spillway and energy-dissipation design, gallery and drainage systems, seepage control, and instrumentation for long-term monitoring.

Foundation treatment, grout curtains, and cut-off walls engineered to suit rock or soil profiles and control sub-surface flow.

Governed by CWC dam safety guidelines and the IS 6512 / IS 11223 family of design codes.

Bridge Structures
River, canal & grade-separation crossings

Superstructure design for RCC slab, T-beam, PSC girder, box girder, steel, and composite decks based on span, loading, and clearance.

Substructure and foundation design — piers, abutments, well/pile foundations — engineered for scour, hydraulic, and seismic demands.

Waterway, afflux, and scour-depth analysis to fix span arrangement, deck level, and foundation depth for river crossings.

Governed by the IRC code series for loads, concrete, steel, foundations, and bearings, with IS codes for materials.

WHAT WE OFFER

Our Engineering Services

Site Investigation & Surveys

Topographic and hydrographic surveys, soil and rock investigation, river cross-sectioning, and discharge studies to establish reliable design inputs for both dams and bridges.

Hydrology & Hydraulic Studies

Catchment yield, flood frequency, design-flood estimation, waterway and afflux computation, and scour analysis to fix spillway capacity, span arrangement, and foundation depth.

Dam Design & DPR

Earthen, masonry, and concrete gravity dam design with stability, seepage, and spillway analysis, plus complete DPR preparation conforming to CWC and IS code requirements.

Bridge Superstructure Design

Design of RCC slab, T-beam, PSC girder, box girder, steel, and composite superstructures — with load analysis, deck detailing, and bearing & expansion-joint design per IRC codes.

Substructure & Foundations

Pier, abutment, and foundation design — open, pile, and well foundations — engineered for scour, hydraulic loading, seismic forces, and varied geotechnical conditions.

Safety & Rehabilitation

Structural condition assessment, load rating, dam safety review, and rehabilitation/retrofit design for ageing dams and bridges to extend service life and restore capacity.

BRIDGE TYPES WE DESIGN

Crossings Engineered for Every Span

RCC Slab & T-Beam Bridges

Reinforced concrete slab and T-beam decks for small to medium spans over canals, drains, and minor rivers.

PSC Girder Bridges

Prestressed concrete I-girder and box-girder superstructures for medium to long spans with high load capacity.

Steel & Composite Bridges

Steel plate-girder, truss, and steel-concrete composite decks for long spans and rapid erection requirements.

Causeways & Submersible Bridges

Low-cost river crossings, vented causeways, and submersible bridges for seasonal streams and rural connectivity.

CODES & STANDARDS

Designed to Indian & International Codes

Every dam and bridge we engineer is designed, detailed, and documented in strict conformity with the governing codes of practice for structural safety, hydraulics, and material quality.

Bridge Design Codes (IRC)
  • IRC:6 — Loads & load combinations for road bridges
  • IRC:112 — Code of practice for concrete road bridges
  • IRC:24 — Steel road bridges
  • IRC:78 — Foundations & substructure
  • IRC:5 — General features of design
  • IRC:SP:13 — Design of small bridges & culverts
Dam & Hydraulic Codes (IS / CWC)
  • IS 6512 — Criteria for design of solid gravity dams
  • IS 11223 — Guidelines for fixing spillway capacity
  • IS 7894 — Stability analysis of earth dams
  • IS 10635 — Freeboard requirements in embankment dams
  • CWC Guidelines — Dam safety, inspection & EAP
  • IS 4997 — Hydrodynamic / seismic design
Materials & General Codes
  • IS 456 — Plain & reinforced concrete
  • IS 1343 — Prestressed concrete
  • IS 800 — General construction in steel
  • IS 1893 — Criteria for earthquake-resistant design
  • IS 875 — Design loads (dead, live, wind)
  • IS 2911 — Design & construction of pile foundations
All structural detailing, quality assurance, and documentation follow the latest revisions of the above codes alongside relevant MoRTH specifications, state PWD/irrigation department standards, and project-specific client requirements. Codes are applied in their current amended versions at the time of design.

PROJECT DELIVERABLES

What You Receive

Our deliverables are structured to meet the requirements of government approvals, financing bodies, and construction contractors.

Phase 01
Feasibility & Concept Report

Site assessment, hydrological analysis, alignment/axis options, structure-type selection, and preliminary cost estimate with a recommendation on the optimum scheme.

Phase 02
Detailed Project Report (DPR)

Comprehensive DPR with all design calculations, general arrangement drawings, technical specifications, and cost schedules conforming to CWC / IRC / department norms.

Phase 03
Structural Design & Analysis

Full structural analysis and design of dam body, spillway, bridge super- and substructure, and foundations, with code-compliant design notes and stability checks.

Phase 04
GFC Drawings & BOQ

Good-for-construction drawings, bar bending schedules, and Bill of Quantities with technical specifications ready for tendering and execution.

Phase 05
Construction Supervision

Resident engineering, quality-control testing, progress monitoring, and variation management throughout the construction of the dam or bridge.

Phase 06
As-Built & Safety Documentation

As-built drawings, operation & maintenance manuals, and structural/dam safety inspection reports for formal project handover.

Planning a Dam or Bridge Project?

Our dam and bridge engineers are ready to assess your site, evaluate structure options, and prepare a technically sound, code-compliant, and fundable project report.

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