Bridge & Highway Design

At CASAD, our bridge & highway engineering philosophy is rooted in two key principles: ease of transportation and user safety. We specialise in the design, construction, and maintenance of bridges ranging from small pedestrian crossings to complex cable-stayed structures.

Comprehensive Bridge Design

We offer end-to-end bridge design services tailored to client needs, including:

Conceptual and detailed design
Structural analysis and modeling
Preparation of General Arrangement Drawings (GADs)
Cost estimation and technical specifications for tender/construction phase
Build strong partnerships with clients, contractors and government bodies for seamless execution.

Technical capabilities

Our team of seasoned engineers and industry experts excel in:

Advanced structural design software, including Tekla and STAAD.Pro
Superstructure and substructure design
Geotechnical-based substructure analysis
Segmental construction techniques
Retaining walls, underpasses, and overpasses

Project Experience

With a portfolio of 100+ successful infrastructure projects delivered globally, our experience includes:

Vehicular Bridges
Pedestrian Bridges
Prefabricated Bridges
Multi-level Interchanges
Cable-Stayed Bridges
Flyovers and Railway Over Bridges (ROBs)
Entry and exit ramps
Highway interchanges
Bridge rehabilitation and restoration
Approach roads and auxiliary structures

Our multidisciplinary team brings engineering excellence and creative problem-solving to every stage from concept to construction and to long-term maintenance to deliver innovative, sustainable, and cost-effective solutions tailored to client needs.

Bridge & Highway Design Projects

Multi-level Railway Over Bridge

CASAD Infra Solutions led the structural design and detailing for Gujarat’s first multi-level Railway Over Bridge at Surat. Featuring PSC girders, composite spans, and RCC slabs across multiple traffic levels, the project integrates 747 pile foundations, 121 piers, and 262 girders. CASAD’s advanced bridge engineering and BIM expertise enabled seamless design coordination for this urban-scale, multi-tier infrastructure serving one of India’s busiest railway corridors.

Railway Over Bridge – Louisiana

Casad delivered structural design and utility relocation engineering for a major Railway Overbridge in Louisiana, aligning with LA DOTD standards. The project included roadway realignment, bridge design, and the relocation of local and regional utility assets. Through advanced modeling, regulatory familiarity, and integrated planning, Casad ensured safe, efficient infrastructure delivery with minimal service disruption.

Circular Pedestrian Skywalk – Vastral Junction

Casad engineered Ahmedabad’s first circular pedestrian skywalk at Vastral Junction—an iconic steel structure that links all four road corners and connects to the metro station. Elevated at 7m, with a 4.2m wide walkway, the bridge includes lifts, staircases, and escalators. Casad delivered structural design, steel detailing, and BIM modeling, enabling rapid construction and ensuring safety in one of the city’s busiest traffic zones.

Restoration of 150-Year-Old Heritage Steel Bridge

Casad Infra Solutions leads the structural and architectural restoration of a 150-year-old heritage steel pedestrian bridge in Ahmedabad. Combining retrofit engineering and urban beautification, Casad’s work preserves the bridge’s integrity while enhancing its aesthetic and usability. Through BIM modeling, conservation strategies, and design sensitivity, the project revives a city landmark as a functional and cultural icon.

Cable Stayed Flyover - Apollo Junction

Casad Infra Solutions provided BIM modeling, bridge engineering, and visualization services for the 1.5 km Cable-Stayed Extradosed Bridge at Apollo Junction, Ahmedabad. Supporting a 6-lane flyover with a 100m span and 38m high pylon, Casad’s REVIT and Lumion-based workflows enabled detailed design, agency coordination, and integration of public infrastructure. The hybrid PSC and cable-stayed design sets a benchmark for urban flyovers in India.

Khokra Railway Over Bridge

Casad Infra Solutions provided end-to-end bridge engineering and TEKLA modeling services for the Khokhra Railway Overbridge—Western Railway’s longest single-span steel girder (92m, 1045 MT). Launched over live tracks, this steel truss bridge demanded precision design, fabrication drawings, and BIM coordination. Casad enabled safe, clash-free execution of a complex urban infrastructure milestone in one of India’s busiest rail zones.

More Bridge & Highway Projects