Assam Prepares for Second Saraighat Rail-Road Bridge Across Brahmaputra to Upgrade Regional Transit The Ministry of Railways is initiating work on the 1.3 km double-decker Second Saraighat Bridge and the Agthori-Kamakhya railway doubling to boost Northeast connectivity. Cross-river transit across the Brahmaputra River in Assam is set for a substantial upgrade as the Ministry of Railways prepares to commence construction on the Second Saraighat Rail-Cum-Road Bridge. Alongside the construction of the new span, the comprehensive infrastructure venture encompasses track doubling between the Agthori and Kamakhya railway stations. Operating under the administrative oversight of the Northeast Frontier Railway zone, the project is designed to expand transit throughput around Guwahati while solidifying transport arteries throughout the broader northeastern region. Design and Engineering Specifications of the Double-Decker Bridge The core of the undertaking involves a 1.3-kilometre double-decker bridge designed to carry multi-modal traffic across the river. The lower deck will accommodate two railway tracks, while the upper level will host a three-lane vehicular carriageway alongside dedicated pedestrian footpaths. This marks a major capacity expansion compared to the existing Saraighat Bridge, which functions with only a single railway track and a two-lane roadway. The main river structure will rest on deep well foundations and feature a welded Open Web Girder superstructure spanning 125 metres. To integrate the main crossing with regional networks, specialized approach viaducts will be erected on both shores. The alignment includes a viaduct extending approximately 600 metres on the Agthori side and a 200-metre structure on the Kamakhya approach. These elevated approach paths will be anchored by pile foundations utilizing composite girder superstructures. Highway Integration and the Agthori-Kamakhya Rail Doubling The infrastructure scheme is planned to interface directly with regional road systems developed by the National Highways Authority of India. This roadway integration will secure continuous movement toward Jalukbari on one bank while establishing direct links with the road network around Agthori on the opposite bank. Concurrently, the 7.20-kilometre Agthori-Kamakhya railway doubling project will introduce a second track along the critical rail corridor. The Railway Ministry formally sanctioned the track doubling in 2024, assigning its engineering and execution to Larsen & Toubro. Timeline, Digital Instrumentation, and Regional Impact Northeast Frontier Railway Chief Public Relations Officer Kapinjal Kishore Sharma highlighted that the development will enhance capacity across Assam's logistics network, smoothing operations for passenger traffic and commercial freight alike. Execution plans prioritize modern construction methods, advanced digital engineering, and stringent safety criteria. To oversee structural health throughout the lifecycle of the crossing, engineers will implement dedicated digital monitoring and bridge instrumentation frameworks. Piling operations are targeted to begin in October 2026, with related civil construction activities expected to gather momentum across the ongoing financial year. Once completed over the coming years, the twin-track railway section will streamline train passage across the Brahmaputra, while the three-lane deck will relieve commuter congestion between the northern and southern banks of Guwahati. What this means for you This infrastructure expansion will significantly ease transit congestion and expand freight corridors connecting Guwahati with the rest of India. • Across India: Train transit connecting the northeastern corridor with mainland rail networks will see reduced delays and enhanced freight handling. This creates a more dependable supply chain for goods travelling into and out of the region. • In Assam: Commuters travelling between the northern and southern banks of Guwahati will experience faster road travel with fewer bottlenecks. The three-lane carriageway directly alleviates pressure on the older Saraighat crossing. • For rail commuters: Adding a second track between Agthori and Kamakhya eliminates train waiting times caused by the single-track bottleneck. Passengers will benefit from more reliable scheduling and improved safety across the river. • Construction timeline: Piling work scheduled to commence in October 2026 will initiate on-ground activity across the riverbanks. Commuters using nearby highways should watch for gradual traffic diversions near the approach networks as work progresses. Why this happened The project was initiated because the existing crossing across the Brahmaputra could no longer comfortably manage the escalating volume of regional traffic and rail freight. • Capacity constraints: The legacy Saraighat Bridge operates with just a single rail track and a two-lane carriageway. Rapid growth in vehicular and train traffic created consistent congestion on this vital river crossing. • The Agthori-Kamakhya bottleneck: Single-line rail operations between Agthori and Kamakhya stations limited train frequency and created operational delays. Recognizing this choke point, the Railway Ministry sanctioned the track doubling project in 2024. • Regional connectivity demands: Guwahati serves as the primary gateway to the northeastern states, demanding sturdier transport links capable of handling both civilian transit and expanding freight movement. Questions & Answers 1. What are the structural dimensions of the Second Saraighat Bridge? It will be a 1.3-kilometre double-decker bridge featuring two railway lines on the lower deck and a three-lane roadway with a footpath on the upper deck. 2. What is the length of the railway doubling section between Agthori and Kamakhya? The railway doubling project covers a distance of 7.20 kilometres and was sanctioned by the Ministry of Railways in 2024. 3. Which contractor is executing the project? The execution of the project has been entrusted to engineering conglomerate Larsen & Toubro. 4. When is the piling work scheduled to commence? According to the railway authorities, piling operations are targeted to begin in October 2026. 5. How will the bridge connect to existing road networks? It will interface with road approaches built by the National Highways Authority of India, connecting towards Jalukbari on one side and the Agthori road network on the other. https://trendkia.com/en/assam/assam-men-brahmaputra-nadi-para-banega-dusara-saraighat-rela-va-saraka-pula-purvottara-ki-kanektiviti-hogi-majabuta-37814 TrendKia — Har trend, sabse pehle.