Sample Guide Specifications for Construction of Geosynthetic Reinforced Soil-Integrated Bridge System (GRS-IBS)

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PREFACE

This guide was issued to provide guidelines for construction of the geosynthetic reinforced soilintegrated bridge system (GRS-IBS). Refer to Geosynthetic Reinforced Soil Integrated Bridge System Interim Implementation Guide for GRS-IBS design and construction guidelines.⁽¹⁾

This guide serves as the technical basis for agency-developed standard specifications. Local experience and practice shall be incorporated as applicable.

SI* (Modern Metric) Conversion Factors

TABLE OF CONTENTS

SECTION 1. GENERAL REQUIREMENTS

1.1. GUIDELINES FOR USING THIS DOCUMENT
1.2. QA RESPONSIBILITIES
1.3. STANDARD REFERENCE DOCUMENTS
1.4. DESCRIPTION OF WORK

SECTION 2. MATERIAL REQUIREMENTS

2.1. CMU FACING ELEMENT
2.2. BACKFILL MATERIAL
2.3. GEOSYNTHETICS
2.4. MISCELLANEOUS MATERIALS

SECTION 3. CONSTRUCTION REQUIREMENTS

3.1. LABOR AND EQUIPMENT
3.2. SITE LAYOUT
3.3. EXCAVATION
3.4. RSF
3.5. PLACEMENT OF BACKFILL AND COMPACTION
3.6. PLACEMENT OF GEOSYNTHETIC REINFORCEMENT
3.7. WALL FACING
3.8. LEVELING COURSE
3.9. BEAM SEAT
3.10. PLACEMENT OF SUPERSTRUCTURE
3.11. APPROACH INTEGRATION
3.12. SITE DRAINAGE

SECTION 4. CONTRACTOR QC

4.1. DESCRIPTION
4.2. CONTRACTOR QC PLAN
4.3. QC PERSONNEL REQUIREMENTS
4.4. QC LABORATORY FACILITY REQUIREMENTS
4.5. QC OF STANDARD MANUFACTURED ITEMS
4.6. QC INSPECTION
4.7. QC SAMPLING AND TESTING
4.8. QC DOCUMENTATION AND DATA EVALUATION
4.9. QC RECORDS SYSTEM

SECTION 5. AGENCY ACCEPTANCE, MEASUREMENT, AND PAYMENT

5.1. ACCEPTANCE
5.2. MEASUREMENT
5.3. PAYMENT

REFERENCES