Ir. Arief Nugraha Pontoh
Geotechnical Engineer Lecturer Entrepreneur

Ir. Arief Nugraha Pontoh, S.T., M.Eng.

Faculty member at Institut Teknologi Kalimantan — teaching, researching, and mentoring the next generation of geotechnical engineers. Consultant on slope stability, soil improvement, and foundation engineering across East Kalimantan and the IKN development zone.

8+ BNSP Certifications
15+ Geotechnical Projects
5 Books Authored
3 National IP Rights
About Me

From the classroom to the construction site — and now the boardroom.

I don't fit into a single box, and I never intended to. As a geotechnical engineer, I spend my days analyzing slope failures, designing retaining walls, and keeping infrastructure from sliding. As a lecturer at Institut Teknologi Kalimantan, I train the next generation of civil engineers. And as an entrepreneur, I channel the same systematic thinking into building businesses that actually work.

Geotechnical Engineering

Geotechnical Expert

Slope stability analysis, retaining wall design, soil improvement, and geotechnical consulting across East Kalimantan and IKN priority zones. Certified at the highest level by BNSP.

Academic Lecturer

Lecturer & Researcher

Dosen Teknik Sipil at ITK since 2021. Coordinator of the Civil Engineering Study Program. Author of 5 academic books. Supervisor of 20+ graduates. Researcher on landslide prediction and IKN slope stability.

Entrepreneur

Entrepreneur

Running a culinary business alongside a full consulting and academic career. The same discipline that goes into a geotechnical report goes into building a brand that lasts.

Professional Certifications

Multiply Certified

8 professional certifications from BNSP — Road Engineering, K3 Construction, Geotechnical, Building Management, and more. Because credentials matter when lives depend on your calculations.

Expertise & Services

What I actually do — and do well.

Four distinct domains. One systematic approach. Whether the client is a mining company, a government agency, or a student in need of a solid foundation.

Slope Stability Analysis

Numerical simulation of slope failure under rainfall conditions. Stability assessment for roads, embankments, and retaining structures in tropical residual soils — including IKN priority development zones.

Foundation Engineering

Design and analysis of deep and shallow foundations. Pile capacity, settlement analysis, and soil-structure interaction for industrial, commercial, and infrastructure projects across Kalimantan.

Soil Improvement

Ground stabilization using sustainable and cost-effective methods — including Galam wood cerucuk, geosynthetics, and cement stabilization (PCC). Field-tested solutions for challenging tropical soils.

Lecture & Research

Teaching Soil Mechanics, Foundation Engineering, Geosynthetics, and Site Investigation at Institut Teknologi Kalimantan. Active researcher publishing in indexed journals and presenting at international conferences.

Training & Certification

Instructor and assessor for BNSP construction competency certifications. Official trainer for Balai Jasa Konstruksi Wilayah V Banjarmasin and Dinas PUPR East Kalimantan. Building industry-ready professionals.

Business & Entrepreneurship

From directing CV. Argatama (2012-2020) to building a culinary brand — applying engineering discipline to business development. Mentoring engineering students in entrepreneurship through structured coursework.

Featured Projects

Work that moves the ground — and the industry.

Selected geotechnical consulting engagements, infrastructure projects, and academic contributions spanning East Kalimantan, IKN, and beyond.

PLN Infrastructure

Retaining Wall Repair — PLN UIP Kaltim Balikpapan Office

Technical and architectural assessment of damaged retaining wall (DPT) at PLN UIP East Kalimantan headquarters in Balikpapan. Full geotechnical investigation, structural analysis, and remediation design covering both technical and architectural aspects of the repair work.

2025-2026 Tim Leader
Agro-Industrial Infrastructure

Rigid Pavement Design — PT. Dharma Satya Nusantara PKS 4, Muara Wahau

Led structural pavement design for operational roads within Palm Oil Factory (PKS) 4, Muara Wahau. Covered subgrade characterization, heavy industrial loading conditions, and rigid pavement thickness optimization for factory-scale vehicle loads within an agro-industrial complex.

2026 Tim Leader
Law Enforcement Facility

Retaining Wall Design — Gedung Ditreskrimsus POLDA Kalimantan Timur

Geotechnical investigation and retaining wall (DPT) design for the Ditreskrimsus building complex of East Kalimantan Regional Police (POLDA Kaltim). Provided soil parameters, lateral earth pressure analysis, and structural design recommendations for the retaining structure within the facility compound.

2025 Tenaga Ahli Geoteknik
Energy Infrastructure

Geotechnical Site Visit — PLN 150 kV Substation, Tideng Pale, UIP Kaltim

Geotechnical site visit and assessment for PLN's 150 kV Gardu Induk (GI) substation at Tideng Pale, under PLN UIP Kaltim. Evaluated site conditions, bearing capacity, and geotechnical risks for critical electrical infrastructure in East Kalimantan.

2025 Tenaga Ahli Geoteknik
Mining Sector

Road Relocation Study — IUP PT. Indomining, Sanga-Sanga

Team Leader for multidisciplinary technical study on relocating a public kabupaten road damaged by low-wall slope failure at PIT B, Block 16. Covered geotechnical slope stability (4 cross-sections, SLIDE v6.0), rigid pavement design (JPCP, K-400, 25 cm), and drainage design for 175 m new alignment — per KepMen ESDM 1827:2018 and MDP Bina Marga 2024.

2025 Tim Leader — PT. Banti Tekno Investama
Agro-Industrial Infrastructure

Geotechnical Investigation — Kernel Bulk Silo & Conveyor Support, PT. Sinergi Agro Industri

Geotechnical investigation for Kernel Bulk Silo and Conveyor Support structures at PT. Sinergi Agro Industri, delivered through PT. Ricon Masintan Pratama. Provided subsurface data, bearing capacity analysis, and foundation recommendations for heavy industrial storage and conveyor infrastructure within a palm oil processing facility.

2024 Tenaga Ahli Geoteknik — PT. Ricon Masintan Pratama
Agro-Industrial Infrastructure

Embankment Repair Design — Reservoir Dam PT. Dharma Satya Nusantara PKS 2

Led design of repair works for the reservoir embankment (tanggul waduk) at PT. Dharma Satya Nusantara PKS 2, through PT. Ricon Masintan Pratama. Analysis included embankment stability, seepage control, and repair methodology to restore structural integrity of the dam serving the palm oil factory water supply system.

2024 Tim Leader — PT. Ricon Masintan Pratama
Soft Ground Engineering

Galam Wood Soil Improvement — Drainage Box Culvert, PT. Putra Perkasa Abadi

Geotechnical study of soil improvement using Galam wood cerucuk (timber pile) for drainage channel and box culvert construction by PT. Putra Perkasa Abadi (PPA). Evaluated load transfer mechanisms, settlement behavior, and effectiveness of Galam wood as a sustainable, locally-sourced soft ground improvement solution for swampy terrain.

2023 Tenaga Ahli Geoteknik
Mining Sector

River Relocation — Hydrology, Hydraulics & Geotechnics, PIT 110 NW, PT. KRA

Geotechnical Expert for river relocation at PIT 110 NW, PT. Kemilau Rindang Abadi (KRA). Study encompassed hydrological and hydraulic analysis of the Tinjakan River, geotechnical evaluation of the relocated channel corridor, and slope stability verification for adjacent pit walls to ensure operational safety during and after river diversion.

2023 Tenaga Ahli Geoteknik — PT. Banti Tekno Investama
Mining Sector

Low-Wall Slope Assessment — Area A2, PT. Indomining, Kutai Kartanegara

Geotechnical Expert for slope stability analysis of low-wall Area A2 at PT. Indomining, Sanga-Sanga, Kutai Kartanegara. Evaluated failure mechanisms, factor of safety under static and pseudo-static conditions, and produced technical recommendations for safe mining progression and slope remediation to prevent recurrence.

2023 Tenaga Ahli Geoteknik — PT. Banti Tekno Investama
Business Portfolio

Engineering discipline,
applied to food business.

Same systematic approach. Different product. The culinary ventures run on the same principles as a geotechnical project — meticulous planning, quality control, and building something that stands the test of time.

SD

Smokey Dimsum

Premium Smoked Dimsum by Ardzanin's Kitchen

A bold culinary concept that brings premium smoked dimsum to Balikpapan — marrying authentic technique with the unmistakable character of smoking. Every piece is engineered for consistency: fresh ingredients, controlled process, and a quality standard that an engineer would insist on. Because in the kitchen, as on a slope stability report, precision matters.

Culinary F&B Smoked Dimsum Balikpapan
AK

Ardzanin's Kitchen

Home-Style Cooking. Professional Standards.

The culinary house behind Smokey Dimsum. Built on family recipes and professional food handling standards, Ardzanin's Kitchen serves Balikpapan with comfort food that doesn't compromise on consistency. The same rigor applied to a slope stability report — applied to every dish that leaves the kitchen. Smokey Dimsum is the flagship product. The brand lives here.

Home Kitchen Catering Parent Brand Local Favorite

"Engineering teaches you to solve problems under constraints. Business teaches you to solve them under uncertainty. I do both — and they make each other sharper."

— Ir. Arief Nugraha Pontoh, S.T., M.Eng.
Publications & Books

Knowledge documented.
Engineering made accessible.

From indexed journals to practical engineering textbooks — building a body of work that students, practitioners, and researchers can actually use.

Selected Journal Articles

2022

Penggunaan Sheet Pile Sebagai Perkuatan Tebing Sungai Dondang

Jurnal Wahana TEKNIK SIPIL, Vol.27/No.2, pp. 275-287
2022

Pengaruh Penambahan Beban Bangunan Terhadap Kestabilan Lereng, Sei-Wain Km.15

Jurnal Multidisiplin Madani (MUDIMA), Vol.2/No.6, pp. 2717-2728
2021

The Effect of Rainfall on Slope Stability with Numerical Simulation on Tawaeli-Toboli Road

IOP Conference Series: Earth and Environmental Science, 622/012017
View All on Google Scholar ↗
Credentials

Certified to the highest standard.

Professional certifications are not just credentials — they are accountability. Every certification means someone trusted my judgment on something that matters.

BNSP Certifications

Ahli Utama
Teknik Jalan Main Expert — Road Engineering
Ahli Utama
K3 Konstruksi Senior Expert — Construction Safety
Ahli Madya
Geoteknik Associate Expert — Geotechnical Eng.
Ahli
K3 Umum General OHS Expert
Manajer
Pengelolaan Bangunan Gedung Building Management Manager
Assessor
Assessor of Competency Certified Assessor — BNSP
Editor
Scientific Article Editor Certified Journal Editor — BNSP
Level 1
PBJ — Pengadaan Barang/Jasa Government Procurement Expert — LKPP

Professional Memberships

HATTI
Himpunan Ahli Teknik Tanah Indonesia Board Member — Komisariat Daerah Kalimantan Timur (2023-2027)
PII
Persatuan Insinyur Indonesia Registered Professional Engineer (Ir.)
LKPP
PBJ Level 1 — Government Procurement Certified Expert — National Public Procurement Authority

Latest Posts

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Investigasi Geoteknik Lahan Rawa

Geoteknik di Lahan Rawa (Gambaran Umum & Tantangan Pembangunan Infrastruktur)

Geoteknik di Lahan Rawa (Gambaran Umum & Tantangan Pembangunan Infrastruktur)

Tanah Ekspansif (Expansive Soil)

Tanah Ekspansif (Expansive Soil)

Have a project.
Need a geotechnical eye.

Whether it's a slope that worries you, a soil investigation that needs interpretation, or a curriculum collaboration — get in touch. I respond to serious inquiries directly.

Kampus ITK, Building C-101, Jl. Soekarno-Hatta Km.15, Karang Joang, Balikpapan, East Kalimantan 76127