Important!
Starting January 1, 2025, the new General Technical Requirements for Road Works (GTR 2024) will be in effect.
Projects that are already in progress, i.e. where activities began before January 1, 2025, will be executed in accordance with the GTR from 2001, particularly the following projects:
- projects for which a location permit has been obtained, and the preparation of main designs is in progress
- projects for which both location and construction permits have been obtained
- projects where the execution of construction works is underway
The General Technical Requirements for Road Works (GTR) sets out the standard requirements for the work and materials to be used in road construction. GTR document is deemed to be incorporated into a contract made between the contracting authority and the contractor. Where the project design indicates that a special provision is required to resolve project-specific issues that are not covered by the GTR, the project designer shall draft the Special Technical Requirements (STR) which supplement the GTR in the contract documents and shall be read in conjunction with them.
The current edition is the third revised edition of the General Technical Requirements. The first edition was published in 1976 and the second in 1989. Years of practice are reflected in the third edition of 2001 which contains the following volumes:
Volume I – General Provisions and Preliminary Work (pdf)
Volume II – Earthwork, Drainage, Retaining and Facing Walls (pdf)
Volume III – Pavement Structure (pdf)
Volume IV – Concrete Work (pdf)
The current edition is the third revised edition of the General Technical Requirements. The first edition was published in 1976 and the second in 1989. Years of practice are reflected in the third edition of 2001 which contains the following volumes:
Volume I – General Provisions and Preliminary Work (pdf)
Volume II – Earthwork, Drainage, Retaining and Facing Walls (pdf)
Volume III – Pavement Structure (pdf)
Volume IV – Concrete Work (pdf)
The 2001 edition of GTR consists of six volumes which together form a single edition of standard specifications for road works. Unless otherwise stated, all works shall be carried out in accordance with the relevant specifications (GTR) and their provisions referenced in the contract documents (technical documents/designs or Bills of Quantities). The General Technical Requirements were prepared by Civil Engineering Institute of Croatia (now Institut IGH d.d.).
ABBREVIATIONS used in specifications
- GTR - General Technical Requirements for Road Works
- STR - Special Technical Requirements
- CMD – Construction Management Plan
- GCC - General Conditions of Contract
- SCC – Special Conditions of Contract/Conditions of Particular Application
- QCAP - Quality Control and Quality Assurance Program
- HRN – Croatian standard
- ISO – international standard (International Organisation of Standardization)
- EN – European standard (European Standard)
- DIN – German standard (Deutsches Institut für Normung)
- ASTM – American Standard (American Society for Testing and Materials)
APPLICABILITY
The GTR contains description of works, construction methods, quality conformance requirements for material and works, and methods of measurement for the work delivered. The GTR shall apply to the works specified in Bills of Quantity and for variation works that may be determined as necessary to complete the work/the contract. For project-specific issues the Special Technical Requirements may be developed by design engineers and included in the contract.