Mbudzi Interchange aerial view, Harare, Zimbabwe
Civil & Structural Engineering Est. 1994

DNMZ

Excellence through professional engineering

1994
Established
4
Countries
50+
Years combined experience
800+
Bridges and culverts inspected

Engineering built
on four decades

An international civil and structural engineering firm delivering design and construction monitoring through technologically superior processes, comprehensive subcontracting protocols and enhanced design and construction methodologies.

Vision

Build a consultancy firm that will deliver good quality engineering services and that will grow to compete with large engineering companies in South Africa.

Mission

Provide clients with top quality professional engineering services for construction and related activities, both public and private, from concept planning through to completion, with a highly skilled professional team of internal and external strategic business alliances. Recognised for design and implementation excellence, committed to sustainable development, adding value through innovation and cost effective service delivery.

Scope of Practice

Design and construction monitoring services to local and provincial government, renewal projects, structural and civil works, roads and stormwater infrastructure and bulk services, water and sewage.

1994
Registered close corporation
operating since 1997
South Africa

Owned and managed by suitably qualified members, the leadership collectively holds more than five decades of civil engineering experience. DNMZ offers consultancy alone or full design and build turnkey delivery, favouring employment intensive construction methods.

Four core
disciplines

A close corporation registered in South Africa, operating since 1997. Offers consultancy alone or full design and build turnkey delivery, favouring employment intensive construction methods.

01

Structural Engineering

  • Reinforced and prestressed concrete
  • Commercial and industrial buildings
  • Masonry
  • Bridges
  • Water retaining structures
  • Low cost housing
02

Project Management

  • Project management
  • Contract administration
  • Tender documentation
  • Management of labour intensive contracts
  • Small contractor development and training
03

Municipal Infrastructure

  • Water reticulation
  • Sewer reticulation
  • Water and waste water treatment
  • Pump station and bulk pipelines
  • Stormwater management
04

Transportation Engineering

  • Geometric and pavement design
  • Road rehabilitation design
  • Traffic assessment studies

Landmark works

Aerial view of the Mbudzi Interchange grade-separated cloverleaf, Harare, Zimbabwe
Flagship Project

Mbudzi Interchange

Harare, Zimbabwe. Commissioned 30 May 2025

Grade separated interchange replacing an at-grade roundabout. Five main bridges, two underpasses, six culverts, loop and ramp systems, approximately 24 km of roadworks, over 15 km of stormwater pipes and channels, 6 km of bulk water main relocation, MSE retaining walls, full electrical installations.

5
Main bridges
24km
Roadworks
15km+
Stormwater pipes
6km
Bulk water relocation
85 Anderson Street, Marshalltown: rebar and tower construction, Johannesburg CBD
Johannesburg CBD

85 Anderson Street, Marshalltown

R420 million. Completion December 2026

Rehabilitation of a fire damaged 3 storey barracks building and construction of a 12 storey office building with a 16 m deep four level basement. Lateral support, fire protection, electrical, HVAC. Targeting 4 star green rating.

Bridge crew on site during construction supervision
Mpumalanga, Client: Eskom

Kusile Coal Transloading Facility

R310,000,000

Bridge, weighbridge and conveyor belt design, coal offloading facility, structural steel transloading structures, road geometric and pavement design, drainage management system design, project management, construction supervision.

# Project Location Contract Value
01 Mbudzi Interchange Harare, Zimbabwe Grade separated interchange: 5 bridges, 2 underpasses, 6 culverts, 24 km roadworks Flagship
02 85 Anderson Street, Marshalltown Johannesburg CBD Fire rehabilitation, 12 storey office build, 16 m basement, 4 star green rating target R420,000,000
03 M2 Replacement of Finger Joints Johannesburg 30 finger joints replaced under live traffic, comprehensive traffic management R30,000,000
04 Selby and Kazerne Rehabilitation M2 Motorway, JHB Bridge replacement, corbel failure and AAR damage, 22,000 daily trip diversion R192,000,000
05 M1 Freeway, Bridges over Oxford and Federation Roads Johannesburg, SANRAL Backwall design, retaining wall stabilisation, bearing rehab, 1 km carriageway reconstruction R127,366,942
06 Eskom Kusile Coal Transloading Facility Mpumalanga Bridge, weighbridge, conveyor belt design, structural steel, road geometric and pavement design R310,000,000
07 JRA Bridge Inspections and Strumans BMS Update City of Johannesburg 800+ bridges and culverts inspected, BMS updates, critical remedial identification R50,000,000
08 JRA Visual Assessment of All Roads City of Johannesburg Road inspections, data collection and processing, road database administration R136,000,000
09 Heavy Rehabilitation of Road P122/1 Elardus Park to Kempton Park 10 km road design, drainage system design, project management, construction supervision R52,113,621
10 Mzilikazi River Bridge South Africa 45 m three span design, pile design, flood hydrology and hydraulic design R50,159,863
11 Nxumalo River Bridge South Africa 45 m three span design, pile design, flood hydrology and hydraulic design, supervision R41,266,545
12 Zulu River Bridge South Africa 45 m three span design, pile design, flood hydrology and hydraulic design, supervision R50,858,845
13 Kinini River Bridge South Africa 45 m three span design, pile design, flood hydrology and hydraulic design, supervision R51,456,789
14 Coleraine River Bridge South Africa 45 m three span design, pile design, flood hydrology and hydraulic design, supervision R14,540,600
15 Main River Bridge South Africa River bridge design, caisson pile design, flood hydrology and hydraulic design, supervision R18,912,145
16 Niven River Bridge South Africa River bridge design, flood hydrology and hydraulic design, construction supervision R6,705,905
17 Felstead River Bridge South Africa River bridge design, flood hydrology and hydraulic design, construction supervision R2,666,648

The principals

Owned and managed by suitably qualified members, leadership collectively holding more than five decades of civil engineering experience.

Tendai Madzikanda, Managing Director, DNMZ International

Tendai Madzikanda

Managing Director
PrEng, CEng, BSc Eng (Civil), MIStructE

Civil engineering degree in 1990, passed the Institution of Structural Engineers examination in 1994, corporate member in 1995, Chartered Engineer through the Institution of Engineers, Europe the same year. Registered with ECSA, corporate member of the UK Institution of Structural Engineers. Experience across low and high rise buildings, bridges and other structural engineering work.

Alexander Nyoni, Director, Head of Civil and Transportation Engineering

Alexander Nyoni

Director, HOD Civil and Transportation
BSc Eng (Civil), MEng (Civil)

Graduated with honours in 1990. A Highways and Infrastructure Design Engineer covering highway design, drainage systems, project administration and infrastructure implementation, spanning feasibility, investigation and accident analysis through outline and detail design to accident remedial measures.

Anathi Cele, Director, Head of Structures

Anathi Cele

Director, HOD Structures
PrEng, BSc Eng (Civil), MEng (Civil)

Civil engineering degree in 2009, master's in 2019. A Professional Structural and Bridge Engineer in industrial, commercial and residential structures plus bridge and culvert work. An accredited Bridge Inspector focused on new design and rehabilitation of existing structures.

Four offices

If you have any questions or inquiries, please feel free to reach out. Our team is here to assist you.

Head Office

South Africa

417 Jan Smuts Avenue
Blairgowrie, Randburg, 2194
Gauteng
P O Box 411818 Craighall, 2024
+27 11 789 9512
Regional Office

Zimbabwe

15 Crinnis Road
Ballantyne Park
Harare
+263 4 702884
Regional Office

Botswana

Plot 131/11
Nkwe Square
Gaborone International Finance Park
Gaborone
Regional Office

Rwanda

5th Floor, Kigali Heights
P.O. Box 5196
Kigali
+250 783 304 967

Arrange a consultation to discuss your civil or structural engineering project.

+27 11 789 9512

Engineering
that
endures