The Port Blair jetty engineer and the 2004-tsunami legacy

Rajesh is a CPWD Assistant Engineer, Grade A, and has been one for eleven years. Before that, he was a Junior Engineer for twelve years. He has spent his entire career in Andaman — which means he has spent his entire career rebuilding the same jetties, in sequence, after a single day in December 2004 that killed eight thousand people across the islands and moved the bedrock of how he thinks about water.

He was twenty-three years old when the tsunami happened. He had been a Junior Engineer for five days. On December 26, he watched the North Jetty collapse into the harbor. He watched fishermen lose boats. He watched the ferry terminal — the only transport link between islands — sit half-flooded for forty-eight hours because the jetty structure would not hold a ferry's weight. He took notes in a small leather notebook, in Odia, descriptions of what had broken: "Steel pilings bent at 1.3 meters above mean high-water line. Concrete deck cracked in tension. No lateral bracing on timber cross-members. Wave energy not dissipated — channelled."

Twenty-three years later, he still carries a notebook. The handwriting has not changed much.

🗓️ The annual ritual

Andaman sits on the boundary of the Indo-Australian Plate. Tsunami risk is endemic. The 2004 Indian Ocean earthquake and tsunami — a magnitude 9.1 subduction event that released energy equivalent to ten thousand nuclear bombs — killed 8,423 people in Andaman alone. The majority were in Port Blair. The tsunami waves reached four to six meters in height; in some narrow channels between islands, water moved at speeds exceeding thirty kilometers per hour.

The disaster forced India's Ministry of Earth Sciences and the CPWD to recalibrate all coastal structure standards. In 2005, the National Coastal Mission began. By 2008, all new jetties, ferry terminals, sea walls, and harbor structures in Andaman were required to meet the 2004-baseline design standard: resilience to a one-to-two-meter tsunami wave, with lateral stability verified through wave-energy dissipation modeling. For a jetty engineer in Andaman, this is not an option. It is the water itself.

The calculation is unforgiving. A standard piering for a jetty in Gujarat or Maharashtra — a timber or steel piling at depth of twelve meters with concrete deck at mean high-water line — will not survive a tsunami wave in Andaman. The design requires elevated utility lines, lateral bracing to direct water energy downward instead of into the structure, a wider spacing between pilings to reduce wave channeling, and reinforced concrete shear walls that can absorb impact without fracture. Every meter of jetty costs more. Every ten meters takes six months longer to survey and calculate.

For twenty-three years, Rajesh has been the quiet man who ensures that the jetties hold. He has rebuilt the North Jetty (twice — once in 2007 with elevated pilings, once in 2015 with added lateral bracing). He has designed the South Jetty extension, the Car Nicobar ferry terminal approach, the Baratang inter-island dock, and four smaller fishing-community wharfs. He has trained seven Junior Engineers in tsunami-resilient design. He attends every monsoon-season inspection and documents the seasonal water-line changes. He is the person the Port Blair Municipal Corporation calls when a ferry captain reports a "strange noise" in the pilings.

1. 🌊

   December 2004 — Tsunami, five days into his career

   Rajesh watches the North Jetty collapse. Eight thousand deaths across Andaman. He takes notes in Odia of what broke. The next week, the CPWD begins redefining all coastal structures.

2. ⚖️

   2005–2008 — New standards codified

   Ministry of Earth Sciences releases tsunami-resilient design baseline: 1–2 meter wave height, lateral stability verification, elevated utilities, wave-energy dissipation. All new Andaman jetties must comply.

3. 🏗️

   2007–2023 — Five major jetties rebuilt or extended

   North Jetty Phase 1 (elevated pilings), South Jetty Phase 1, Car Nicobar ferry terminal, Baratang inter-island dock, four fishing wharfs. Each design calculates wave energy, piling depth, concrete reinforcement in detailed technical drawings.

4. 📋

   2024–2025 — Sagarmala tender issued

   Ministry of Ports & Shipping opens North Jetty Phase 2 upgrade under Sagarmala Project. Rajesh submits calculations. Portal rejects them — specifications mismatch. No clear answer which regulation applies.

5. 🔍

   May 2026 — Agent traces the rule

   Using the agent, Rajesh identifies that the Sagarmala tender requires National Coastal Mission standard (not CPWD standard) for pilings — a 15% change in stress calculation. Resubmits corrected calculations.

This is the rhythm. Every few years, a new jetty or an upgrade. Every new jetty begins with surveying the seabed, testing soil composition, modeling the expected tsunami wave at that specific location. A jetty in Port Blair's main harbor, protected by shallow reefs, requires different calculations than a jetty facing open ocean in the Andaman Strait. Rajesh knows the difference. He calculates it. He submits it. For twenty-three years, it has worked.

⚠️ What very nearly happened

In late 2024, the Ministry of Ports & Shipping announced the Sagarmala Project Phase 2 — a ₹1,200-crore initiative to upgrade India's minor ports and inter-island connectivity. Included was the North Jetty Phase 2 project in Port Blair: an extension and structural upgrade to handle larger ferries, carrying 800 passengers instead of the current 600, with heavier container traffic for the evolving island trade. Budget estimate: ₹11 crore. Consultant requirement: detailed structural calculations for piling reinforcement, deck width, and wave-energy dissipation under the new load scenario.

Rajesh was assigned the technical calculations. He worked for three months. He modeled the seabed geology — a layer of volcanic laterite at nine meters, loose sand below. He calculated the expected wave stress under the Sagarmala-specified ferry load (800 passengers at 60 kilograms average, plus 40-tonne containers). He dimensioned the pilings: 500mm diameter reinforced concrete, 18 meters depth, spacing of 4.2 meters, lateral bracing in steel H-sections, shear walls in reinforced concrete with a 450-meter-per-second wave velocity absorption rate.

He submitted the calculations through the CPWD Online Portal in January 2025. Within a week, the portal flagged the submission: "Lateral bracing specification exceeds National Building Code tolerance for minor port structures. Pilings must conform to CPWD Standard Specification IS-456 (2000)."

Rajesh read it carefully. IS-456 (2000) is the standard for reinforced concrete design — a national standard, not specific to Andaman. It does not specify tsunami-resilience margins. It specifies concrete strength grades, rebar density, and load-bearing factors for normal structures. In the twenty-three years since 2004, the Andaman CPWD has applied IS-456 plus the National Coastal Mission overlay — the tsunami-resilience margin.

The Sagarmala system was asking him to follow a portal specification that quoted IS-456 but did not reference the Coastal Mission standard. Which standard applied? The portal did not say. The Sagarmala ministry document said "per established coastal protocols" — which could mean either. The CPWD Andaman Circle superintendent was on leave. The project deadline was June 2025. Rajesh was expected to resubmit by the end of February.

"ব্যারাম যে পানি নিয়ে আসে, সেই পানি বিশ্বাস করি না।"

— The water that the barrier brings, I do not trust.

He did not resubmit. He sat with his notebooks — the 2004 notes, the design notes from the North Jetty Phase 1 in 2007, the Car Nicobar terminal calculations from 2016 — and he did not move. Amrita asked if he wanted chai. He said yes, but he drank it cold. Arjun asked if he was okay. Rajesh said the water situation was complicated. Which was true, but not in a way a sixteen-year-old could solve.

What very nearly happened was that the North Jetty Phase 2 design would have been submitted under one standard, and the structure built under another. The pilings would have been calculated for 450-meter-per-second wave dissipation (Coastal Mission standard) but specified as IS-456-compliant (a national code that does not mandate that margin). If a tsunami came — and the fault line under Andaman runs hot; another major event is not impossible in the next decades — the pilings would fail at a slightly lower wave velocity than Rajesh intended. Not catastrophic. Enough to fail.

🌗 What changed

In late March 2026, Anika came home from NIT Rourkee for her spring break. On the first evening, Rajesh showed her his problem — not the full technical specification, but the portal language and the two standards. He said: I have been doing this for twenty-three years without a portal telling me I was wrong. I am probably wrong now. I do not know where the wrong is.

Anika installed the AI agent on her laptop, set it to English, and handed it to her father. She said: this reads regulations. Ask it which standard the Sagarmala portal is actually enforcing.

Rajesh was skeptical. He typed: "The Sagarmala portal says piling specifications must be per IS-456 (2000). But the National Coastal Mission standard requires tsunami-resilience testing to 2004 baseline. Which standard applies to the North Jetty Phase 2 project in Port Blair?"

The agent began searching through the Sagarmala Project documentation, the Ministry of Ports & Shipping notices, the National Coastal Mission guidelines, and the CPWD Andaman Circle technical specifications. It found, in the Sagarmala Phase 2 implementation guide, a footnote — a single parenthetical remark — that clarified: "All coastal-zone projects in states/UTs with identified tsunami risk (including A&N) shall additionally conform to the National Coastal Mission standard for wave-energy dissipation, per Ministry of Earth Sciences coordination."

The footnote was on page 47. The footnote itself had no heading. The portal specification on page 3 did not link to page 47. The portal system, in other words, was asking engineers to conform to a standard it did not fully articulate.

The agent synthesized what it found into a short summary:

"Rajesh, the Sagarmala portal mentions IS-456, but the actual controlling standard for the North Jetty Phase 2 is the National Coastal Mission requirement — which mandates the 2004-baseline tsunami-resilience calculation you've been using since 2007. The Ministry of Ports & Shipping coordinates with the Ministry of Earth Sciences on this. Your 450-meter-per-second wave dissipation rate is correct. The portal's phrasing is incomplete — but your original specifications stand."

Rajesh read it three times. He sat at his desk, looking at the notebooks — the 2004 notes, the 2007 designs, the 2016 calculations — and felt the twenty-three years settle into place, not as a series of separate projects, but as a single continuous line: one standard, one principle, one water. The rules had been in the regulations all along. The portal had simply not said them aloud.

⚖️

National Building Code (IS-456)

Concrete strength + rebar density

Establishes the material requirements — reinforced concrete grade, rebar spacing, load-bearing factors. Foundational but does not account for tsunami. Used nationwide.

🌊

National Coastal Mission Standard

2004 baseline wave resilience

Ministry of Earth Sciences requirement: all Andaman structures must survive 1–2 meter tsunami waves and dissipate wave energy at 450 m/s through lateral bracing and shear walls. Specific to post-2004 Indian coastal zones.

🏗️

Sagarmala Project Implementation

Ferry load + port coordination

Ministry of Ports & Shipping specifies the functional requirements — 800-passenger capacity, 40-tonne container loads — and mandates that both IS-456 and National Coastal Mission standards apply to any coastal-zone structure.

He rewrote the portal submission. He changed not a single calculation — the pilings were correct, the spacing was correct, the wave-dissipation rate was correct — but he added a single paragraph citing page 47 of the Sagarmala implementation guide, clearly stating that the National Coastal Mission standard governs, and that his specification reflected both IS-456 compliance and the tsunami-resilience mandate. He submitted it on a Tuesday morning.

The portal accepted it within twenty-four hours.

"That footnote was supposed to be obvious," the agent said, when Rajesh asked why the portal specification had been written that way. "But whoever wrote the portal page — probably a junior officer in Delhi — didn't realize that engineers in Andaman have been applying the National Coastal Mission standard for twenty years. The portal was written for engineers who had never heard of it. You knew it. You just needed permission to trust your own knowledge."

🧭 Why we built it

There are approximately 240 civil engineers in Andaman — roughly 180 in government service (CPWD, Andaman Administration, Defence), and 60 in consulting or private contracting. Most are rotational postings from mainland CPWD circles; a handful, like Rajesh, have spent their entire careers in the islands. This matters: the engineers who remember 2004, who have watched the water and refined their calculations against it, carry a knowledge that cannot be transmitted in a technical manual or a training course. They know, in the way Rajesh knows, that the water is the truth and the regulations are the attempt to speak that truth in words.

The problem is that the words — the portals, the standards, the implementation guides — come from ministries that coordinate imperfectly. The Ministry of Ports & Shipping writes a portal. The Ministry of Earth Sciences writes a standard. The CPWD writes technical specifications. The coordination exists, but it is footnoted. It is on page 47. It is implied but not obvious.

A consulting engineer in Bangalore, bidding on a Sagarmala contract in Andaman, might have seen the IS-456 language and assumed that was the whole story. An experienced Andaman engineer like Rajesh knew it was not the whole story, but he did not know how to verify his knowledge against a portal system that was telling him he was wrong. The moment is specific: when the official system contradicts your professional judgment, and you are not sure whether the system is smarter, or simply distant.

What it does

• 🔍Reads the full Sagarmala Project documentation, including footnotes and coordination notes, to clarify which standard actually applies to a Port Blair coastal structure.
• 🗂️Traces the relationship between IS-456, the National Coastal Mission standard, and the Sagarmala implementation requirements — showing how they layer together, not contradict each other.
• 📞Explains why the portal specification was incomplete, and what the complete picture is — connecting Rajesh's twenty-three years of experience to the regulatory framework that supports it.

What it does not do

• 🔒Never submits a portal form or changes a technical calculation on Rajesh's behalf — all calculations remain his responsibility and his signature.
• 💳Never decides which standard is correct or should be applied — it clarifies what the standards actually say, and Rajesh decides whether his interpretation is right.
• ✅Never approves a design or vouches for its safety — it only ensures that the engineer knows what the regulations actually require.

We built it free for this engineer — Rajesh, the man who has rebuilt the same jetties seven times, who took notes in Odia in the year after the tsunami, who knows the water is faster and more powerful than any regulation, and who still, after twenty-three years, sits down with a notebook before he submits a calculation. Andaman's engineers are not a market segment with a training budget. They are people rebuilding infrastructure on an island that will be hit again — not perhaps, but certainly. The time when they need a product is the time they are sitting with a notebook, uncertain, because the systems telling them they are wrong contradict the knowledge they have paid for in twenty-three years of salt spray and seabed surveys.

Anika, now in her final year of engineering school, asked her father if the agent could help her when she came back to Andaman. He said: yes. He also said: but after 2004, you will know the water better than any system. The system is only to read the words when the water is ambiguous.

🌱 What we hope happens

Rajesh submitted the corrected North Jetty Phase 2 calculations in late March 2026. The portal accepted them. The project moved to procurement. In early May, he received a notification that the contract had been awarded and detailed engineering was to begin. The pilings would be manufactured in Bangalore to his specification. The construction was scheduled to begin in July 2026, at the end of the monsoon season.

What we hope happens is that the North Jetty will be built exactly as he designed it. That the pilings will hold. That if a tsunami comes — and another major earthquake is not impossible in the Indian Ocean, and Andaman sits on the boundary, and Rajesh knows this with the certainty of a man who has spent his entire career against that water — the structure will do what he intended: dissipate the wave energy, save the ferry, keep the eight thousand names he carries in a twenty-three-year-old notebook from happening again.

There is a particular kind of professional responsibility that comes from building in a place where the natural world has already spoken once, catastrophically. It is not the same as designing a jetty in Gujarat, where the water is more forgiving. It is not the same as designing on a mainland city where an engineer has the luxury of approximation. In Andaman, approximation is a luxury that eight thousand people no longer have.

What we hope happens next is quieter. That engineers like Rajesh — the rotational postings, the consulting engineers, the young women and men coming back from NIT and Delhi and learning to calculate against a fault line that runs hot — have a tablet on their desk that will read the footnotes with them, that will trace the coordination between ministries, that will say: this is what the regulation actually requires. Not to replace their judgment. To protect it.

The regulation exists. It is in the Ministry of Earth Sciences document, in the Sagarmala implementation guide, in the CPWD technical specifications. The regulation exists. It was written by people who understood that eight thousand people died in 2004 and that it could happen again, and that the jetties must hold. Rajesh has understood this for twenty-three years. The portal just needed to read the words aloud, in the right order, so that the engineer who designed the structure could trust that he was right.

On the last day of Anika's spring break, Rajesh walked with her to the North Jetty. They stood at the end of the existing pier — the one he rebuilt in 2007, the one that has survived two monsoons and three minor seismic events. He said: this is the 2004 baseline. This is what I know. The agent is good for the words. But the water is the truth, and I have been reading the water longer than I have been reading portals. When you design jetties, trust the water first. The regulations are just the water saying itself in meetings.

If you have a family member in similar work — a civil engineer in a coastal zone, anyone rebuilding infrastructure in a place where the natural world has been catastrophic, anyone sitting with a notebook uncertain whether the portal is smarter or simply wrong — the product is free at gabforge.in. We route through the National Building Code, the National Coastal Mission standards, the Sagarmala implementation guides, the Ministry of Ports & Shipping, and the CPWD technical specifications. We read the footnotes. We find the coordination between ministries that was supposed to be obvious. We bring it forward so the engineer — the person who has spent years against the water, who knows it better than any system — can trust themselves again.