Motorways & Highways

Project Description

The project included preparation of preliminary and final design of (2×2) state highway approximately 27 km long. The design work has been based on upgrading the highway standards at those sections of the existing Ceyhan – Yumurtalık State Highway which lies south of Turkey. In addition to highway design sections, BOTEK also made improvements to the existing sections on the horizontal and vertical geometric standards.

The design work included the following: Topographical and other field surveys, structural evaluation and design, drainage and hydrological studies and design, soils and materials investigations, pavement evaluation and design, preparation of complete construction plans.

Project Details

11 at-grades interchanges
5 river bridges
1 overpass

Services Provided

• Review of Conceptual Design
• Field Surveys
• Environmental Impact Assessment
• Design of Hydrological Structures
• Final Detailed Design of
• Ancillary Structures
• Drainage Design
• Cross Sections
• Bruckner Calculations
• Soil Investigation
• Traffic Study
• Preparation for the Bill of Quantities
• Assistance to State Highways Directorate on Tender Procedures

Project Description

Ankara – Pozantı (Çiftehan – Pozantı Section) Motorway is the part of Trans-European Motorway (TEM) connecting western Anatolia to the southern Anatolia starting from Ankara. BOTEK has provided supervision and engineering consultancy services for 18.498 km long, 3-lane Motorway comprises earthworks, structures, bridges and viaducts, tunnels, administrative and service buildings, toll plaza, road pavement, security, traffic and secondary works, for the Ankara – Pozantı Motorway .

Project Summary

• Lighting Works comprising all motorway, toll plaza, tunnels, over-passes, under-passes and interchanges to include transformers, lanterns, armatures, polls, cables, emergency generator and all other ancillary equipments and spares
• Emergency communications system works include phones, cabling, power source, posts and other works and spares
• Demolition, reconstruction or relocation of under or above ground electrical, telecommunication lines and drinking water installations
• Arrangement and planning ofside roads and facilities located alongside of the motorway

• Motorways (2×3) 16.046 km
• Connection Roads    (2×2)   2.452 km

TOTAL: 18.498 km

As can be seen from the description of actual services provided by our staff together with the absence of PIU unit in this project, BOTEK in reality, while executing the main duties of the Consultant, also fulfilled the task that was expected from a PIU unit, as far as quality control and,  financial and administrative duties were concerned.

Project Summary

• Culverts
• Under-Passes
• Under-pass bridges having total length of 81 m
• Interchange Bridges having total length of 117 m
• Viaducts having total length of 2470 m
•  Twin Tube Tunnels;
  • Kırkgeçit Tunnel: 2 x 497 m
  • Çakıt Tunnel: 2 x 469 m

• Toll Plaza

• Reinforced concrete retaining walls having total length of 10.383 m

Reinforced concrete piles having total length of 38400 m will be constructed for the foundations of viaducts and bridge

Building Summary

Within the scope of Çiftehan – Pozantı Section of Ankara – Pozantı Motorway, there exist;​

• Supervision of Motorway Construction
• Supervision of Viaduct, Bridge & Structure
• Supervision of Motorway Barriers and
• Railings Mountings
• Supervision of Construction of Facilities,
• Parking and Maintenance Areas, Service
• Stations, Toll Plazas, Administrative and
• Public Buildings
• Supervision of Motorway Landscape Works
• Supervision of Pavement and Earthworks
• Supervision of Electric and Water Line
• Installations
• Supervision of Lighting Works
• Traffic Census
• Traffic Signs and Signalization
• Drainage Works
• Landscape Studies and Planning
• Design Review
• Quality Control
• Data processing and Documentation
• Preparation of Final Accounts and Payment Certificates

Project Description

The Orhangazi-Bursa Section is the northward section of the Bursa Peripheral Highway which forms a part of the İstanbul – Bursa – Balıkesir – İzmir Motorway. This dual-three lane motorway was 34 km. long and forms part of the İzmit Bay Crossing and Motorway which is planned to be expanded in the future.

Izmit and Gemlik Bays have great dual importance with respect to trade and industry. In addition to this, the lands on the route of Motorway are very fertile so agriculture and farming are well developed in these regions. Therefore BOTEK has taken all of these important factors and conditions into consideration and design the motorway for future traffic flow and forthcoming necessity. BOTEK has also determined the conditions in order to protect the nature, agriculture and structures in the vicinity of the motorway from harmful effects of all sorts of materials used against icing on the surface of the motorway and on the structures and established systematic solutions for the installations and structures to be used for prevention and purification, and examined the design outlines of the motorway, connection and frontage roads and roadside installations from the viewpoint of harmony with nature and ensured the conformity of the motorway with its surroundings.

All design and engineering works are made completely according to “TEM Standards and Recommended Practice” which is published by UNECE (United Nations Economic Commission for Europe)

Besides motorway works, BOTEK has also performed following activities:

• Arrangement and planning ofside roads and facilities located alongside of the motorway
• Derivation and rehabilitation of 3 streams around the interchanges.
• Lighting Works comprising all motorway, toll plazas, parking areas, service and maintenance areas, over-passes, under-passes and interchanges to include transformers, lanterns, armatures, polls, cables, emergency generator and all other ancillary equipments and spares
• Emergency communications system works include phones, cabling, power source, posts and other works and spares
• Demolition, reconstruction or relocation of under or above ground electrical, telecommunication lines and drinking water installations

Project Summary

• Motorway (2×3), (34km)
• Side Roads(26km)
• 2 Motorway Interchange Bridges
• State Highway Interchange Bridges
• 7  Viaducts (Approx. 3312 m)
• Toll plazas
• Service Area
• Car park
• Culverts
• Under-bridges
• Over-bridges
• 5  Motorway Bridges
• State Highway Bridge
• 34,605 m² Retaining Walls

Services Provided

• Field Survey
• Geotechnical Survey
• Feasibility Study
• Preliminary Design
• Final Motorway Design
• Detailed Structural Design
• Landscape Design
• Environmental Impact Assessment and Pollution Prevention Studies
• Traffic Signs and Signalization
• Expropriation Plans
• Cross Sections
• Earthworks Calculations
• Bruckner Calculations
• Preparation of Bill of Quantities and Tender Assistance

Project Description

This project consists of preliminary design and engineering consultancy services for 80 km (2×3) motorway in the south Turkey. Iskenderun-Antakya-Cilvegözü motorway is the extension of Iskenderun motorway which is the last section of the Edirne – Istanbul – Ankara – Tarsus – Adana – Gaziantep – Urfa Motorway Route named as TEM (Transit European Motorway)

TEM (Trans-European North-South Motorway) is a motorway network which connects the Baltic, Adriatic, Aegean and Black Seas and it has the total planned length amounting to 23797 km, out of which 7021 km are currently in operation. All design and engineering works are made completely according to “TEM Standards and Recommended Practice” which is published by UNECE (United Nations Economic Commission for Europe).

Project Details

• Culverts
• Underbridges
• Overbridges
• Interchange Bridges
• River Bridges
• Viaducts
• Motorway Interchanges
• State Highway Interchange
• At-Grade Interchange
• Tunnels total length of 1260 m

Study objectives included investigation of the site conditions including geological, hydrological, and social conditions.

Services Provided

• Preliminary and Application Design
• Geotechnical Survey
• Soil Investigation
• Field Surveys
• Earthworks Calculations
• Bruckner Calculations
• Cross Sections
• Drainage Design
• Preparation of Bill of Quantities

Project Description

Edirne-Kinali section of Trakya Highway is a part of TEM (Transit European Motorway) connecting East Europe to Middle East. The project consists of (2×3) 155 km. motorway and (2×2) connection roads (60 km) with earthworks, structures, bridges and viaducts, tunnels, pavement, security, traffic and secondary works. BOTEK had been associated with Ove Arup International, London on the project.

TEM (Trans-European North-South Motorway) is a motorway network which connects the Baltic, Adriatic, Aegean and Black Seas and it has the total planned length amounting to 23797 km, out of which 7021 km are currently in operation. All design and engineering works are made completely according to “TEM Standards and Recommended Practice” which is published by UNECE (United Nations Economic Commission for Europe).

Services Provided

• Field, Geotechnical and Geodetical Surveys
• Soil Investigation
• Preliminary and Final Design
• Drainage Design
• Cross Sections
• Quality Control of Works