Arapahoe Basin - Addendum #2 - Attachment 2 - CDOT Road and Bridge Specifications.pdf

Colorado Department of Transportation

Standard Specifications for

Road and Bridge Construction

Colorado Department of Transportation

Standard Specifications For

Road and Bridge Construction

PREFACE

Use these standard specifications on contract work awarded by the Colorado Department of Transportation (CDOT). They may be supplemented or modified to suit specific contracts.

These specifications are expressed in United States Standard Measure (English units). The international System of Units (SI, Modernized Metric) is used only where standardized testing requires metric units. For clarity, aggregate sieve sizes appear in both SI and English Units.

The dimensions, measurements, and requirements stated in English units are the specification requirements. All Contractor submittals shall be prepared in English Units. Pay item quantities will be measured in English units.

Unless otherwise identified, forms referred to (Form 605) are CDOT forms. Forms from other organizations or agencies are clearly identified (FHWA Form 1273). When used in this manner, it shall be capitalized as shown.

Use of these specifications by any other organization or individual will be at the user’s risk.

Organizations or individuals citing these specifications by reference in their contract work will be responsible for furnishing prospective bidders’ copies of the specifications along with any addenda that may affect their contract.

Addenda to these specifications may be issued by the Department to suit its needs. Addenda may be accessed on the CDOT website.

Wherever the term “manhole” or “maintenance hole” are used, they should be considered interchangeable.

TABLE OF CONTENTS

TOC-1

DIVISION 100 GENERAL PROVISIONS

Section Title Page Page

101 Definitions and Terms 101-1 101-12 102 Bidding Requirements and Conditions 102-1 102-4 103 Award and Execution of Contract 103-1 103-2 104 Scope of Work 104-1 104-10 105 Control of Work 105-1 105-60 106 Control of Material 106-1 106-24 107 Legal Relations and Responsibility to Public 107-1 107-22 108 Prosecution and Progress 108-1 108-16 109 Measurement and Payment 109-1 109-18

DIVISION 200 EARTHWORK

201 Clearing and Grubbing 201-1 201-2 202 Removal of Structures and Obstructions 202-1 202-14 203 Excavation and Embankment 203-1 203-14 206 Excavation and Backfill for Structures 206-1 206-12 207 Topsoil 207-1 207-2 208 Erosion Control 208-1 208-34 209 Watering and Dust Palliative 209-1 209-2 210 Reset Structures 210-1 210-4 212 Seeding, Fertilizing, Soil Conditioner and Sodding 212-1 212-8 213 Mulching 213-1 213-10 214 Planting 214-1 214-12 215 Transplanting 215-1 215-4 216 Soil Retention Covering 216-1 216-8 217 Herbicide Treatment 217-1 217-2

250 Environmental, Health and Safety Management 250-1 250-18

DIVISION 300 BASES

304 Aggregate Base Course 304-1 304-2 306 Reconditioning 306-1 306-2

307 Lime Treated Subgrade 307-1 307-6

TOC-2

DIVISION 400 PAVEMENTS

401 Plant Mix Pavements – General 401-1 401-16 403 Hot Mix Asphalt 403-1 403-2 405 Heating and Scarifying Treatment 405-1 405-2 406 Cold Asphalt Pavement (Recycle) 406-1 406-4 407 Prime Coat, Tack Coat and Rejuvenating Agent 407-1 407-2 408 Joint and Crack Sealer 408-1 408-2 409 Chip Seal 409-1 409-4 411 Asphalt Materials 411-1 411-2 412 Portland Cement Concrete Pavement 412-1 412-26 420 Geosynthetics 420-1 420-4

DIVISION 500 STRUCTURES

501 Steel Sheet Piling 501-1 501-2 502 Piling 502-1 502-12 503 Drilled Shafts 503-1 503-18 504 Walls 504-1 504-28 506 Riprap 506-1 506-4 507 Slope and Ditch Paving 507-1 507-4 508 Timber Structures 508-1 508-4 509 Steel Structures 509-1 509-30 510 Structural Plate Structures 510-1 510-4 512 Bearing Device 512-1 512-8 514 Pedestrian and Bikeway Railing 514-1 514-2 515 Waterproofing Membrane 515-1 515-4 516 Dampproofing 516-1 516-2 517 Waterproofing 517-1 517-2 518 Waterstops and Expansion Joints 518-1 518-16

DIVISION 600 MISCELLANEOUS CONSTRUCTION

601 Structural Concrete 601-1 601-8 602 Reinforcing Steel 602-1 602-4 603 Culverts and Sewers 603-1 603-6 604 Manholes, Inlets and Meter Vaults 604-1 604-4 605 Subsurface Drains 605-1 605-4 606 Guardrail 606-1 606-4 607 Fences 607-1 607-4 608 Sidewalks and Bikeways 608-1 608-4

TOC-3

DIVISION 600 MISCELLANEOUS CONSTRUCTION

(continued)

Section Title Page Page 609 Curb and Gutter 609-1 609-4 610 Median Cover Material 610-1 610-2 611 Cattle Guards 611-1 611-2 612 Delineators and Reflectors 612-1 612-2 613 Lighting 613-1 613-14 614 Traffic Control Devices 614-1 614-40 615 Water Control Devices 615-1 615-2 616 Siphons 616-1 616-2 618 Prestressed Concrete 618-1 618-32 619 Water Lines 619-1 619-2 620 Field Facilities 620-1 620-4 622 Rest Areas and Buildings 622-1 622-14 623 Irrigation System 623-1 623-12 624 Drainage Pipe 624-1 624-4 625 Construction Surveying 625-1 625-6 626 Mobilization 626-1 626-2 627 Pavement Marking 627-1 627-12 629 Survey Monumentation 629-1 629-8 630 Construction Zone Traffic Control 630-1 630-20

641 Shotcrete 641-1 641-6

DIVISION 700 MATERIAL DETAILS

701 Hydraulic Cement 701-1 701-2 702 Bituminous Materials 702-1 702-10 703 Aggregates 703-1 703-10 704 Masonry Units 704-1 704-2 705 Joint, Waterproofing and Bearing Material 705-1 705-8 706 Concrete and Clay Pipe 706-1 706-2 707 Metal Pipe 707-1 707-4 708 Paints 708-1 708-6 709 Reinforcing Steel and Wire Rope 709-1 709-2 710 Fence and Guardrail 710-1 710-4 711 Concrete Curing Materials and Admixtures 711-1 711-2 712 Miscellaneous 712-1 712-8 713 Traffic Control Materials 713-1 713-14 714 Prestressed Unit Materials 714-1 714-2 715 Lighting and Electrical Materials 715-1 715-12 716 Water Line Materials 716-1 716-4 717 Rest Area and Building Materials 717-1 717-8

TOC-4

REFERENCE TABLES TOC-5 TOC-11

INDEX INDEX-1 INDEX-21

NOTES

TOC-5

REFERENCE TABLES

TABLE TITLE PAGE

Table 105-1 Contractor Submittals 105-4 to 7

Table 105-2 Price Reduction Factors 105-9 Table 105-3 Multiplier for Price Reductions for Miscellaneous Items 105-10 Table 105-4 Multiplier for HMA Price Reductions 105-10 Table 105-5 Price Reductions for Retroreflectivity 105-11 Table 105-6 Violation of Working Time Limitations Price Reduction 105-12 Table 105-7 Performance Graded Binder Limits 105-13 Table 105-8 “W” and “V” Factors for Various Elements 105-17 Table 105-9 Formulas for calculating PF based on Pn 105-18 Table 105-10 “V” Factors and Incentive Payments Compressive Strength Criteria 105-23 Table 105-11 “V” Factors and Incentive Payments Flexural Strength Criteria 105-24 Table 105-12 HMA Pavement Smoothness Mean Roughness Index 105-29 Table 105-13 PCCP Smoothness Mean Roughness Index 105-30

Table 105-14 Corrective Work Criteria 0.005 to 0.010 mile/section Mean Roughness Index 105-30

Figure 105-1 FLOWCHART 105-73, 74

Table 106-1 Schedule for Minimum Sampling and Testing for HMA 106-10

Table 106-2 Testing Schedule – Item 412 Portland Cement Concrete Pavement, Flexural Strength Criteria 106-17

Table 106-3 Testing Schedule Item 412 Portland Cement Concrete Pavement, Compressive Strength Criteria 106-18

Table 108-1 Details of an Activity Block 108-4 Table 108-2 Liquidated Damages 108-12

Table 109-1 Fuel Cost Adjustment Factors 109-12

Table 202-1 Removal of Temporary Pavement Marking – Swath Size 202-7

Table 203-1 Sulfate, Chloride and pH of Imported Material 203-4 Table 203-2 Resistivity and pH of Imported Material 203-5

Table 206-1 Sulfate, Chloride and pH of Imported Material 206-4 Table 206-2 Resistivity and pH of Imported Material 206-5

TOC-6

Table 208-1 Approval Process for Erosion Control Materials 208-2 Table 208-2 Physical Requirements for Silt Fence Geotextiles 208-3 Table 208-3 Silt Berm Dimensions 208-4 Table 208-4 Erosion Log Dimensions 208-5 Table 208-5 Index Values for Natural Fiber Netting 208-5 Table 208-6 Geotextile Requirements 208-5 Table 208-7 Silt Dike Segment Requirements 208-6 Table 208-8 Impermeable Synthetic Liner Requirements 208-6 Table 208-9 Aggregate Gradation for Vehicle Tracking Pad 208-7 Table 208-10 Minimum Dimensions for Vehicle Tracking Pad 208-7 Table 208-11 Aggregate Bag Properties 208-8 Table 208-12 Geotextile Properties for Aggregate Bag 208-9 Table 208-13 Aggregate Bag Dimensions for Storm Drain Inlet Protection 208-9 Table 208-14 Woven Geotextile Fabric for Storm Drain Inlet Protection 208-10

Table 209-1 Magnesium Chloride Dust Palliative Chemical Constituents by Weight 209-1

Table 212-1 Compost Physical Properties 212-3 Table 212-2 Seeding Season Timetable and Requirements 212-4

Table 213-1 Wood Cellulose Fiber Mulch Requirements 213-2 Table 213-2 Properties of Plantago Insularis (Desert Indianwheat) 213-2

Table 213-3 Properties of Pre-gelatinized 100 Percent Natural Corn Starch Polymer 213-3

Table 213-4 Properties of Mulch Blanket (Type 1) 213-4 Table 213-5 Properties of Mulch Blanket (Type 2) 213-5 Table 213-6 Soil And Fiber Stabilizing Compound Properties 213-5 Table 213-7 Bonded Fiber Matrices Properties 213-6

Table 215-1 Type 6 – Collected Pinon Pine Min. Rootball Diameter 215-2

Table 215-2 Type 7 – All Collected Plants Other than Pinon Pine Min. Rootball Diameter 215-2

Table 215-3 Minimum Spade Machine for Machine Transplanted Plants 215-3

TOC-7

Table 216-1 Physical Requirements for Soil Retention Blanket – Photodegradable or Biodegradable Blankets 216-2

Table 216-2 Performance Requirements for Soil Retention Blanket – Photodegradable or Biodegradable Blankets 216-3

Table 216-3 Physical Requirements for Turf Reinforcement Mat 216-4 Table 216-4 Performance Requirements for Turf Reinforcement Mat 216-4

Table 250-1 Detection Standards for Monitoring Gases 250-1

Table 307-1 Schedule For Minimum Sampling and Testing 307-5

Table 401-1 Tolerances for Hot Mix Asphalt 401-2 Table 401-2 HMA Moisture Susceptibility Test Frequency/Criteria 401-3 Table 401-3 Placement Temperature Limitations in °F 401-4 Table 401-4 Periods Requiring Overlay of Treated Surfaces 401-4 Table 401-5 HMA Minimum Discharge/Delivery Temperatures 401-8 Table 401-6 Segregation Determination 401-10

Table 406-1 Cold Asphalt Pavement (Recycle) Pulverized Material Gradation Requirements 406-1

Table 420-1 Minimum Required Overlap 420-3

Table 502-1 Pile Driving Hammer Efficiencies 502-2

Table 502-2 Minimum Manufacturer’s Pile Driving Hammer Rated Energy per Pile Size 502-2

Table 503-1 Drilled Caisson Mineral Slurry Requirements 503-5 Table 503-2 Drilled Caisson Polymer Slurry Requirements 503-6 Table 503-3 Drilled Caisson Water Slurry Requirements 503-6 Table 503-4 Drilled Caisson Minimum Concrete Cover Over Reinforcing Steel 503-12 Table 503-5 Drilled Caisson Maximum Horizontal Distance Tolerances 503-13

Table 503-6 Drilled Caisson Additional Length Compensation 503-18

TOC-8

Table 504-1 Minimum Loss Rates 504-3 Table 504-2 Maximum K Values for Geogrid or Geotextile Sheet Reinforcement 504-4 Table 504-3 Price Reduction for Panel Facing Defects 504-14 Table 504-4 Verification Test Loading Schedule 504-22 Table 504-5 Proof Test Loading Schedule 504-23 Table 504-6 Initial Shotcrete Facing Tolerances 504-26

Table 506-1 Riprap Material Test Requirements 506-1 Table 506-2 Riprap Gradation Requirements 506-2

Table 507-1 Grouted Riprap Concrete Mortar Requirements 507-1 Table 507-2 Classification and Gradation of Rock for Grouted Riprap 507-2

Table 509-1 UT Acceptance-Rejection Criteria, Compressive Stress 509-7 Table 509-2 Minimum Bolt Pretension for Pre-Installation Verification 509-26

Table 509-3 Minimum Bolt Pre-tension For Pre-installation Verification (Group 120 and 150) 509-28

Table 509-4 Net Bolt Weight (head, nut, and stick-out) 509-29

Table 518-1 Expansion Joint Component Requirements 518-3 Table 518-2 Polyester Resin Binder Properties 518-5 Table 518-3 High Molecular Weight Methacrylate Resin Properties 518-6 Table 518-4 Aggregate Gradation 518-7 Table 518-5 Composite System Properties 518-7

Table 601-1 Concrete Field Requirements 601-2 Table 601-2 Concrete Sulfate Exposure Class 601-8 Table 601-3 Pay Factors for Deviations on Concrete Air Content and Strength 601-44

Table 602-1 Tension Bar Bending Radii 602-2 Table 602-2 Nominal Weights for Bar Sizes 602-4

Table 604-1 Measured Depth and Pay Depth of Manholes and Inlets 604-2

TOC-9

Table 614-1 Controller Cabinet Contents 614-6 Table 614-2 Connector Circuitry for Magnetic Detector Amplifiers 614-8

Table 618-1 Post-Tensioning Grout Requirements 618-18, 19

Table 620-1 Maintenance, Service and Utilities Furnished by Contractor 620-3

Table 622-1 Electrical Work – Mounting Heights Above Finished Floor 622-11

Table 623-1 Control Wiring Color Key 623-2 Table 623-2 Minimum Cover for Irrigation Pipe 623-5

Table 624-1 Materials Allowed for Class of Pipe 624-2 Table 624-2 Resistivity Requirements for Metal Pipes 624-3

Table 627-1 Minimum and Maximum Ranges of Paint and Stripes 627-3

Table 627-2 Application Rate or Coverage Per Gallon of Modified Epoxy Pavement Marking 627-4

Table 627-3

Application Rate or Coverage Per Gallon of Methyl Methacrylate Pavement Marking

627-7

Table 630-1 Retroreflective Sheeting Types 630-2 Table 630-2 Requirements for Electronic Advance Warning Signs 630-3 Table 630-3 Requirements for Stackable Vertical Panels 630-4 Table 630-4 Requirements for Stackable Tubular Markers 630-5 Table 630-5 Minimum Sign Requirements for Mobile Pavement-Marking Zone 630-8 Table 630-6 Vertical Clearances to Structures 630-9 Table 630-7 Sizing for Construction Traffic Signs 630-15

Table 702-1 Superpave Performance Graded Binders 702-2 Table 702-2 Tack And Fog Coat Emulsions 702-3 Table 702-3 Polymerized Emulsions for Chip Seals 702-4 Table 702-4 Slurry Seal and Micro-Surfacing Emulsions 702-5 Table 702-5 Asphalt Emulsion for Prime Coat (AEP) 702-6 Table 702-6 High Float Emulsified Asphalt (Polymerized) (HFMS-2sP) 702-7

TOC-10

Table 702-7 Emulsified Recycling Agent 702-8 Table 702-8 Asphalt Rejuvenating Agent 702-9 Table 702-9 ARA 1P 702-10

Table 703-1 Concrete Aggregate Gradation Table 703-1 Table 703-2 Classification For Aggregate Base Course 703-2

Table 703-3 Classification For Reclaimed Asphalt Pavement Aggregate Base Course 703-3

Table 703-4 Master Range Table for Hot Mix Asphalt 703-4 Table 703-5 Master Range Table for Stone Matrix Asphalt 703-5 Table 703-6 Aggregate Degradation by Abrasion in The Micro-Deval Cp-L 4211 703-5 Table 703-7 Gradation Specifications for Cover Coat Aggregate 703-6 Table 703-8 Mineral Filler Gradation 703-6 Table 703-9 Required Testing for Alternative SMA Mineral Fillers 703-7 Table 703-10 Alternative SMA Mineral Gradation 703-7 Table 703-11 Bed Course Material Gradation 703-8 Table 703-12 Structure Backfill Material Class 1 Gradation 703-8 Table 703-13 Structure Backfill Material Class 3 Gradation 703-9 Table 703-14 Gradation Specifications for Filter Material 703-9 Table 703-15 Gradation Specifications for Median Cover Aggregate 703-9

Table 705-1 PolyIsoprene (Natural Rubber) Elastomer 705-2 Table 705-2 Chloroprene (Neoprene) Elastomer 705-3 Table 705-3 Finished Filled PTFE Requirements 705-4 Table 705-4 PTFE Maximum Coefficient of Friction 705-4 Table 705-5 PTFE Maximum Average Bearing Pressure on Sliding Surface 705-5 Table 705-6 Dimensional Tolerances for Bearings 705-6

Table 705-7 Protective Covering Requirements for Bridge Deck Waterproofing Membrane 705-7

Table 705-8 Prefabricated, Reinforced Membrane Requirements 705-8

TOC-11

Table 708-1 Initial Daytime Chromaticity Coordinates (Corner Points) 708-2 Table 708-2 Low Temperature Acrylic Waterborne Paint 708-3 Table 708-3 High Build Acrylic Waterborne Paint 708-4 Table 708-4 Minimum Physical Properties 708-6

Table 712-1 Physical Requirements for Geomembrane 712-2 Table 712-2 Typical Values of Permeability Coefficients 712-4 Table 712-3 Minimum Strength Tests for Gabion Baskets Only 712-5 Table 712-4 Physical Requirements for Drainage Core 712-7

Table 713-1 Requirements for Aluminum or Steel Used in Traffic Control 713-1 Table 713-2 Gradation of Glass Beads 713-2 Table 713-3 Quality Requirements of Delineator and Median Barrier Reflectors 713-4 Table 713-4 Quality Requirements of Cut-out Figure Reflectors 713-4 Table 713-5 Minimum Coefficient of Retroreflection (RA) 713-5 Table 713-6 Minimum Fluorescence Luminance Factor (YF) 713-5 Table 713-7 Wattage for Traffic Control Signal Heads 713-6 Table 713-8 Preformed Plastic Pavement Marking 713-8 Table 713-9 Specific Luminance (SL) 713-10 Table 713-10 Resin / Pigment Components (% by Weight) 713-11 Table 713-11 Initial Daytime Chromaticity Coordinates (Corner Points) 713-12 Table 713-12 Raised Pavement Marker Reflective Quality Requirements 713-13

Table 715-1 Backlight, Uplight and Glare (BUG) Values 715-3

Table 716-1 For Pipes Carrying Potable Water 716-1 Table 716-2 For Pipes Carrying Non-Potable Water and For Sewers 716-1

Table 717-1 Pipe Weight Per 5-Foot Length 717-4 Table 717-2 Duct Work Sheet Gauges and Thickness 717-5 Table 717-3 Leach Field Gravel Material Gradation 717-7

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101.01

101-1

DIVISION 100

GENERAL PROVISIONS

SECTION 101

DEFINITIONS AND TERMS

Titles used in these specifications having a masculine gender, such as “workmen” and the pronouns “he” or “his”, are for the sake of brevity and are intended to refer to persons of either gender. The titles or headings of the sections and subsections are intended for convenience of reference and shall not have any bearing on their interpretation.

When the Contract indicates that work is to be “accepted, acceptable, subject to approval, approved, authorized, condemned, considered necessary, contemplated, deemed necessary, designated, determined, directed, disapproved, established, given, indicated, deemed insufficient, subject to interpretation, interpreted, ordered, permitted, rejected, required, reserved, satisfactory, specified, sufficient, suitable, suspended, unacceptable, or unsatisfactory,” it shall be understood that these expressions are followed by the words “By the Engineer,” or “To the Engineer.”

When the Contract indicates that something “shall” be done, the action is required and is not discretionary.

Wherever the following abbreviations or terms are used in these specifications, plans, or other contract documents, the intent and meaning shall be interpreted as follows:

101.01 Abbreviations.

ABBREVIATIONS

AAN American Association of Nurserymen AAR Association of American Railroads AASHTO American Association of State Highway and Transportation Officials ACI American Concrete Institute AGC Associated General Contractors of America AI Asphalt Institute AIA American Institute of Architects AISC American Institute of Steel Construction AISI American Iron and Steel Institute AITC American Institute of Timber Construction ANSI American National Standards Institute, Inc.

ARTBA American Road and Transportation Builders Association ASA American Society of Agronomy ASCE American Society of Civil Engineers ASLA American Society of Landscape Architects ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials ATSSA American Traffic Safety Services Association AWG American Wire Gauge AWPA American Wood Protection Association AWS American Welding Society AWWA American Water Works Association

101.02

101-2

ABBREVIATIONS

BLM Bureau of Land Management CCA Colorado Contractors Association CDOT Colorado Department of Transportation CDPHE Colorado Department of Public Health and Environment CFR Code of Federal Regulations CP Colorado Procedure CP-L Colorado Procedure – Laboratory CRS Colorado Revised Statutes, 1973, as amended CRSI Concrete Reinforcing Steel Institute DBE Disadvantaged Business Enterprise EIA Electronic Industries Association EPA Environmental Protection Agency EEO Equal Employment Opportunity FHWA Federal Highway Administration FSS Federal Specifications and Standards IEEE Institute of Electrical and Electronics Engineers IES Illuminating Engineering Society IMSA International Municipal Signal Association IPCEA Insulated Power Cable Engineers Association ISEA International Safety Equipment Association ITE Institute of Transportation Engineers MASH Manual for Assessing Safety Hardware MIL Military Specifications MS4 Municipal Separate Storm Sewer System MUTCD Manual on Uniform Control Devices NAPT National Association for Proficiency Testing NCHRP National Cooperative Highway Research Program NEC National Electrical Code NEMA National Electrical Manufacturers’ Association NIST National Institute of Standards and Technology NSF National Sanitation Foundation NSPS National Society of Professional Land Surveyors NTPEP National Transportation Product Evaluation Program OSHA Occupational Health and Safety Administration PCI Prestressed Concrete Institute RCSC Research Council of Structural Connections ROW Right of Way SWMP Stormwater Management Plan SAE Society of Automotive Engineers TMECC Test Method for the Examination of Composting and Compost USDA, NRCS US Dept of Agriculture, Natural Resources Conservation Service UL Underwriters Laboratories, Inc.

101-3

101.02 Definitions, alphabetically.

Advertisement. A public announcement, inviting proposals for work to be performed or materials to be furnished.

Affected Area. As related to mined land reclamation, the total disturbed surface of a pit or quarry such as sand, gravel, topsoil, or borrow, that is being mined or will be mined. The area includes, but is not limited to, the excavation area, plant, and stockpile areas, parking and storage areas, and the haul roads.

Award. The acceptance by the Department of a proposal.

Basis of Payment. The terms under which “work” is paid, as a designated “Pay Item” per the quantity measured and the “Pay Unit.”

Bidder. An individual, firm, corporation, or other legal entity submitting a proposal for the advertised work. A contractor intending to contract with the Department for performance of prescribed work.

Bridge. A structure, including supports, erected over a depression or an obstruction, such as water, highway, or railroad, and having a track or passageway for carrying traffic or other moving loads and having a length measured along the center of roadway of more than 20 feet between undercopings of abutments or extreme ends of openings for multiple boxes.

Length. The length of a bridge structure is the over-all length measured along the line of survey stationing back-to-back of backwalls of abutments, if present, otherwise, end-to-end of the bridge floor, but in no case less than the total clear opening of the structure.

Roadway Width. The clear width measured at right angles to the longitudinal centerline of the bridge between the bottom of curbs or guard timbers or in the case of multiple height of curbs, between the bottoms of the lower risers.

Calendar Day. Each and every day shown on the calendar, beginning and ending at midnight.

When day is used, it shall mean calendar day unless otherwise defined.

CDOT Resident Engineer. The Resident Engineer is directly responsible for the overall administration of assigned construction projects. Unless the CDOT Project Engineer is a Professional Engineer, the Resident Engineer is CDOT’s full time engineer in responsible charge of the project. The Resident Engineer will delegate authority to Project Engineers consistent with their experience and abilities. Only a CDOT Resident Engineer can approve and sign vouchers for interim and final Contractor pay estimates. Only a CDOT Resident Engineer can authorize and sign changes to the Contract if the Project Engineer is a Consultant Employee.

Certificate of Compliance. A certification, including a signature by a person having legal authority to act for the manufacturer, stating that the product or assembly to be incorporated into the project was fabricated per and meets the applicable specifications.

Certified Invoice. Any invoice or billing endorsed by the Contractor, certifying that material, specialty work, subcontract work, rental, lease, and services were acquired for the project and that the invoiced or billed amount represents the actual costs.

Certified Test Report. A test report from the manufacturer or an independent testing laboratory, including a signature by a person having legal authority to act for the manufacturer or the independent testing laboratory stating that the test results show that the product or

101-4 assembly to be incorporated into the project has been sampled and tested and the samples have passed all specified tests.

Conformity. Compliance with reasonable and customary manufacturing and construction tolerances where working tolerances are not specified. Where working tolerances are specified, conformity means compliance with such working tolerances.

Construction Material: Includes an article, material, or supply — other than an item of primarily iron or steel — that is or consists primarily of non-ferrous metals; plastic and polymer-based products (including polyvinyl chloride [PVC], composite building materials, and polymers used in fiber optic cables); glass; lumber; or drywall.

Construction Drawings . A complete set of plans, reviewed shop drawings, working drawings, and other submittals kept available on the project site at all times by the Contractor.

Construction Requirements. Specifications covering performance of work required for proper completion and acceptance.

Contract. The written agreement between the State of Colorado through the Department of Transportation and the Contractor, setting forth the obligations of the parties for the performance of the work and the basis of payment.

The Contract includes the invitation for bids, proposal, contract bonds, standard specifications, supplemental specifications, special provisions, general and detailed plans, Notice to Proceed, Contract Modification Orders, and authorized extensions of time, all of which constitute one instrument.

Contract Item (Pay Item). A specifically described unit of work for which a price is provided in the Contract.

Contract Modification Order. A written order issued to the Contractor by the Department covering contingencies, extra work, increases or decreases in contract quantities, and additions or alterations to the plans or specifications, within the scope of the Contract, and establishing the basis of payment and time adjustments for the work affected by the changes. The Contract Modification Order is the only method authorized for changing the Contract. Contract Modification Orders must be approved as established in subsection 105.14.

Contract Payment Bond. The security executed by the Contractor and Surety or Sureties and furnished to the Department to guarantee payment of all legal debts of the Contractor pertaining to the Construction of the project.

Contract Performance Bond. The security executed by the Contractor and Surety or Sureties and furnished to the Department to guarantee completion of the work per the Contract.

Contract Time. The number of workdays or calendar days allowed for completion of the Contract, including authorized time extensions. Where a calendar date of completion is specified, the Contract shall be completed on or before that date.

Contractor. The individual, firm, or corporation contracting with the State of Colorado through the Department of Transportation for performance of prescribed work.

101-5

Contractor’s Engineer. A professional engineer registered in the State of Colorado who is an employee of either the Contractor, a consulting engineer under contract to the Contractor, or a manufacturer or supplier of materials supplied to the project.

Control Measures for Stormwater Pollution Prevention. Control measures prevent or reduce the pollutants in stormwater discharges from the construction site.

County. The county where the work is to be done.

Culvert. Any structure not classified as a bridge that provides an opening under the roadway.

Day. See “calendar day” and “working day”.

Department. State Department of Transportation. A department within the executive branch of the State of Colorado.

Domestic Content Procurement Preference: A phrase meaning that all iron and steel used in the project is produced in the United States; the manufactured products used in the project are produced in the United States; or the construction materials used in the project are produced in the United States.

Engineer. The Chief Engineer of the Department acting directly or through an authorized representative, responsible for engineering and administrative supervision of the project.

Equipment. All machinery, tools, and apparatus together with supplies for upkeep and maintenance, necessary for the proper construction and acceptable completion of the work.

Extra Work. Work not provided for in the Contract as awarded but found by the Engineer to be essential to the satisfactory completion of the Contract within its intended scope.

Falsework. Falsework is temporary construction used to support structural elements of concrete, steel, masonry, or other materials during their construction or erection until they become self-supporting. Falsework may also be used to provide temporary support to elements of a structure during demolition or reconstruction.

Finished Grade. Final grade of the site after excavating or filling for pavement or topsoil that conforms to the approved final grading plan. The finished grade is also the grade at the top of a paved or finished surface.

Force Account Work. Work paid for on the basis of actual costs plus approved additives. See subsection 109.04.

Formwork. Formwork is the temporary structure or mold used to retain plastic or fluid concrete in its designated shape until it hardens.

Highway. A general term denoting a public way for purposes of vehicular travel, including the entire area within the right of way.

101-6

Holidays. Holidays recognized by the State of Colorado are:

New Year’s Day Dr. Martin Luther King, Jr.’s Birthday (observed) President’s Day Cesar Chavez Day Memorial Day Juneteenth Independence Day Labor Day Cabrini Day Veterans’ Day Thanksgiving Day Christmas Day

When New Year’s Day, Cesar Chavez Day, Juneteenth, Independence Day, or Christmas Day falls on a Sunday, the following Monday shall be considered a holiday. When one of these days falls on a Saturday, the preceding Friday shall be considered a holiday.

Infrastructure: Includes, at a minimum, the structures, facilities, and equipment for, in the United States, roads, highways, and bridges; public transportation; dams, ports, harbors, and other maritime facilities; intercity passenger and freight railroads; freight and intermodal facilities; airports; water systems, including drinking water and wastewater systems; electrical transmission facilities and systems; utilities; broadband infrastructure;

and buildings and real property. Infrastructure includes facilities that generate, transport, and distribute energy.

Inspector. The Engineer’s authorized representative assigned to make detailed inspections of contract performance.

Invitation for Bids. All documents, whether attached or incorporated by reference, utilized for soliciting proposals. The advertisement will indicate with reasonable accuracy the quantity and location of the work to be done or the character and quantity of the material to be furnished and the time and place of the opening of proposals.

Laboratory. The testing laboratory of the Department, or any other testing laboratory designated by the Engineer.

Materials. All components required for use in the construction of the project.

Method of Measurement. The manner in which a “Pay Item” is measured to conform with the “Pay Unit.”

Notice to Proceed. Written notice to the Contractor to proceed with the contract work including, when applicable, the date of beginning of contract time.

Ordinary High-Water Mark. The term “ordinary high-water mark” means that line on the shore established by the fluctuations of water and indicated by physical characteristics such as clear, natural line impressed on the bank, shelving, changes in the character of soil, destruction of terrestrial vegetation, the presence of litter and debris, or other appropriate means that consider the characteristics of the surrounding areas. This is typically the 2-year storm event elevation.

101-7

Original Contract Amount. The sum of the total dollar amounts bid for all the construction pay item quantities. In subsection 626.02 this figure is modified for use in calculating partial payments for mobilization.

Pavement Structure. The combination of one or more of the following courses placed on a subgrade to support and distribute the traffic load to the roadbed.

(1) Subbase. The layer or layers of specified or selected material placed on a subgrade to support a base course, surface course, or both. Subgrade that has been treated with lime, fly ash, cement kiln dust, or combinations thereof for stabilization will be considered subbase.

(2) Base Course. The layer or layers of specified or selected material placed on a subbase or a subgrade to support a surface course.

(3) Surface Course. One or more layers of a pavement structure designed to accommodate the traffic load, the top layer of which resists skidding, traffic abrasion, and the disintegrating effects of climate. The top layer is sometimes called “wearing course.”

Planned Force Account . Items of work, included on the plans, which will be paid for per subsection 109.04.

Plans. The drawings, or reproductions, provided by the Department, showing the location, character, dimensions, and details of the work.

Pre-construction Conference. A meeting of CDOT project personnel, Contractor project personnel, and other stakeholders held before the beginning of construction, discussing pertinent topics for the successful completion of the work.

Profile Grade. The trace of a vertical plane usually intersecting the top surface of the proposed wearing surface and usually along the longitudinal centerline of the roadbed. Profile grade means either elevation or gradient of such trace per to the context.

Project. The specific section of the highway where construction is being performed, as described in the Contract.

Project Engineer. The Chief Engineer’s duly authorized representative who may be a CDOT employee or an employee of a consulting engineer (consultant) under contract to CDOT as defined below:

(a) CDOT Project Engineer. The CDOT employee, assigned by the Resident Engineer, who is the Chief Engineer’s duly authorized representative. The CDOT Project Engineer is in direct charge of the work and is responsible for the administration and satisfactory completion of the project under contract.

(b) Consultant Project Engineer. The consultant employee under the responsible charge of the consultant’s Professional Engineer who is in direct charge of the work and is responsible for the administration and satisfactory completion of the project. The Consultant Project Engineer’s duties are delegated by the CDOT Resident Engineer per the scope of work in the consultant’s contract with CDOT. The Consultant Project Engineer is not authorized to sign or approve Contract Modification Orders.

Project Special Provisions. See definition for special provision.

Project Termini. Limits of the Project as shown on the plans.

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Proposal. The offer of a bidder, on the prescribed form, to perform the work at the prices quoted. Also called bid.

Proposal Form. A bidder submits their bid on these Department furnished documents. Also called bid proposal.

Proposal Guaranty. The security furnished with a proposal to guarantee that the bidder will enter into the Contract if the proposal is accepted.

Record Set. A reproduction of a drawing or set of drawings, design calculations, or other record of engineering work required to be performed by the Contractor’s engineer and Professional Land Surveyor, which is electronically sealed by the Contractor’s engineer and Professional Land Surveyor using Adobe Sign software and per the Bylaws and Rules of the State Board of Licensure for Architects, Professional Engineers, and Professional Land Surveyors Rules and Regulations, 4 CCR 730-1.

Region Transportation Director. The Department’s representative, responsible for construction, maintenance and safety activities, within the geographical jurisdiction established by the Department. The Region Transportation Director is responsible for acting on written appeals made by the Contractor relating to contract claims for additional compensation or extension of contract time.

Right of Way. A general term denoting land, property, or interest, usually in a strip, acquired for or devoted to a highway.

Road. A general term denoting a public way for purposes of vehicular travel, including the entire area within the right of way.

Roadbed. The graded portion of a highway within top and side slopes, prepared as a foundation for the pavement structure and shoulders.

Roadside. A general term denoting the area adjoining the outer edge of the roadway.

Extensive areas between the roadways of a divided highway may also be considered roadside.

Roadside Development. Those items necessary for the preservation of landscape materials and features. The rehabilitation and protection against erosion of all areas disturbed by construction through seeding, sodding, mulching and the placing of other ground covers.

Suitable planting and other improvements as may increase the effectiveness and enhance the appearance of the highway.

Roadway. The portion of a highway within limits of construction.

Roadway Prism. The portion of the roadway defined as the prism of embankment situated beneath the shoulders and pavement structure and inside the lines projected downward and outward on a one-to-one slope from the outside edges of the roadway shoulders to their intersection with the base of the embankment.

Safety Critical Work . Elements of the work that, if performed improperly, could encroach upon and endanger traffic that is following all traffic regulations. Safety critical work may include work elements performed under one or more of the following situations:

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• Work that is constructed on, over, or near a traffic route and could become unstable over time if installed improperly.

• Work that requires the use of lifting devices in the vicinity of traffic.

• Elements of work considered safety critical for the project will be as identified in Section

107 – Performance of Safety Critical Work.

• “Traffic”, as used above, is defined as the vehicles, railroad, pedestrians, aircraft, and watercraft moving along a route. The route may be permanent or temporary, such as a detour.

SafetyEdgeSM for Pavement. A pavement edge drop-off treatment which allows drivers who leave the road to return safely.

Salvable Material. Material that can be saved or salvaged. Unless otherwise specified in the Contract, all salvable material shall become the property of the Contractor.

Shop Drawings. A general term that includes drawings, diagrams, illustrations, samples, schedules, calculations, and other data that provide details of the construction of the work and details to be used by the Engineer for inspection. Shop drawings shall be prepared by the Contractor, subcontractors, manufacturers, suppliers, or distributors. Shop Drawings are submitted to the Engineer for formal review and return to the Contractor per subsection 105.02(c). Shop drawings include data that illustrates material, equipment, and items that are incorporated in and become part of the permanent work per the Contract.

Shoring. Shoring is temporary construction that is used to support the earth adjacent to excavation or embankment.

Shoulder. The portion of the roadway contiguous with the traveled way for accommodation of stopped vehicles, for emergency use, and for lateral support of base and surface courses.

Sidewalk. That portion of the roadway constructed for pedestrian use.

Special Provisions. Additions and revisions to the standard and supplemental specifications covering conditions specific to an individual project or group of projects. Special provisions fall within one of the two following categories and take precedence as specified in subsection 105.09.

(a) Project Special Provisions. Additions and revisions to the Standard and Supplemental Specifications, specific to the project.

(b) Standard Special Provisions. Additions and revisions to the Standard and Supplemental Specifications, specific to a selected group of projects or that are intended for temporary use.

Specifications. A general term applied to all directions, provisions and requirements pertaining to performance of the work.

(a) Standard Specifications: The Department’s printed book (including errata) titled Standard Specifications for Road and Bridge Construction. The book is divided into three parts namely:

1. General Provisions (Division 100)

2. Construction Details (Divisions 200 thru 600)

3. Material Details (Division 700)

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(b) Supplemental Specifications: Additions and revisions to the Standard Specifications that are adopted subsequent to the issuance of the printed book.

The outline for “Work” items in the Construction Details contains the following:

1. Description

2. Materials

3. Construction Requirements

4. Method of Measurement

5. Basis of Payment

Specified Completion Date. The date that the contract work is specified to be completed.

Standard Special Provisions. See definition for Special Provisions.

State. The State of Colorado acting through its authorized representative.

State Waters. State Waters means any and all surface and subsurface waters that are contained in or flow in or through this state, but does not include waters in sewage systems, waters in treatment works of disposal systems, waters in potable water distribution systems, and all water withdrawn for use until use and treatment have been completed.

Examples of State waters include, but are not limited to, perennial streams, intermittent or ephemeral gulches and arroyos, ponds, lakes, reservoirs, irrigation canals or ditches, wetlands, stormwater conveyances (when they discharge to a surface water), and groundwater.

Note that for the purposes of these specifications “surface waters” means all State waters, except groundwater.

Stormwater Management Plan (SWMP). The Stormwater Management Plan comprises those contract documents containing the requirements necessary to accomplish all the following:

• Protect and identify sensitive environments (state waters, wetlands, habitat, and existing vegetation).

• Minimize the amount of disturbed soil.

• Control and minimize erosion and sedimentation during and after project construction.

• Minimize runoff from offsite areas from flowing across the site.

• Slow down the runoff.

• Reduce pollutants in stormwater runoff.

Street. A general term denoting a public way for purposes of vehicular travel, including the entire area within the right of way.

Structures. Bridges, culverts, catch basins, drop inlets, retaining walls, cribbing, manholes, endwalls, buildings, storm drains, service pipes, underdrains, foundation drains, fences, guardrail, signs, end sections, traffic signals, light standards, and other features that may be encountered in the work and not otherwise classified.

Subcontractor . An individual, firm, corporation, or other legal entity to whom the Contractor sublets part of the Contract. A subcontractor shall include an individual, firm, or corporation who meets one or both of the following criteria:

(a) Establishes a fabricating process or facility exclusively for the use of the Project, whether on or off the site of work per 29 CFR 5.2(l)(1) and 29 CFR 5.2(l)(2).

(b) Performs work that is incorporated within the Project limits.

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Subgrade. The top surface of a roadbed upon which the pavement structure, shoulders, and curbs are constructed. Subgrade that has been treated with lime, fly ash, cement kiln dust, or combinations thereof for stabilization will be considered subbase.

Substructure. All of the structure below the bearings of simple and continuous spans, skewbacks of arches, and tops of footings of rigid frames, together with the backwalls, wingwalls, and wing protection railings.

Superintendent. The Contractor’s authorized employee in responsible charge of the work.

Superstructure. The entire structure except the substructure, as defined.

Supplier. An individual, firm, or corporation who meets one or both of the following criteria:

(a) Fabricates or processes a material not on the site of work per 29 CFR 5.2(l)(3).

(b) Delivers material directly to the project.

In both cases, the material shall be intended for permanent incorporation into the worksite.

Supplemental Specifications. See definition for Specifications.

Surety. The corporation, partnership, or individual, other than the Contractor, executing a bond furnished by the Contractor.

Traffic Control Plan (TCP). The parts of the contract documents for each project that contain the requirements for the maintenance of traffic during construction of the project.

Traveled Way. The portion of the roadway for the movement of vehicles, exclusive of shoulders and auxiliary lanes.

Value Engineering Change Proposal (VECP). A change to contract requirements proposed by the Contractor that will accomplish the project’s functional requirements at less cost or improve value or service at no increase or at a minor increase in cost.

Wheel Path. Wheel paths are the two sections of each through-traffic lane that bear the wheel loading. The center of each wheel path is located 3 feet from the center of the lane; each wheel path is 2 feet wide.

Work. The furnishing of all labor, materials, equipment, and incidentals necessary to successfully complete the project according to all duties and obligations imposed by the Contract.

Working Day. Any day, exclusive of Saturdays, Sundays, and holidays, that weather and other conditions not under the control of the Contractor will permit construction operations to proceed with the normal working force engaged in performing those items controlling the completion of the work.

Working Drawings. A general term that includes drawings, diagrams, illustrations, samples, schedules, calculations, and other data that illustrate the construction of the work, material, equipment, methods, and items that are necessary to construct the work per the plans and specifications. Working drawings shall be prepared by the Contractor, subcontractors, manufacturers, suppliers, or distributors. Working drawings are submitted to the Engineer for information only and are not formally reviewed and returned to the Contractor.

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Workplace Violence. Workplace violence is conduct in the workplace against employees, employers, or outsiders committed by a person who either has an employment related connection with CDOT or is a contractor working on a CDOT project. This conduct includes:

(1) Physical acts against persons or their property, or against CDOT or Contractor property that are perceived to be harmful or threatening.

(2) Veiled or direct verbal threats, profanity, or vicious statements or gestures that are meant to harm or create a threatening or intimidating work environment.

(3) Written threats, profanity, vicious cartoons or notes that are meant to create a threatening or intimidating environment.

(4) Any other acts that are perceived to be threatening or intended to injure or convey hostility.

102.01

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Section 102SECTION 102

BIDDING REQUIREMENTS

AND CONDITIONS

102.01 Prequalification of Bidders. The bidder shall follow the prequalification and bidding procedures contained in the Rules Governing Construction Bidding for CDOT Public Works Projects, 2 CCR 601-10, (“Rules”), on file with the Colorado Secretary of State. Copies are available upon request in the Contracts and Market Analysis Branch of the Department.

Only prequalified bidders will be allowed to bid on any project. At least 10 days before opening of proposals, the bidder must file an experience questionnaire and a confidential financial statement on standard forms furnished by the Department.

102.02 Contents of Proposal Forms. The Department will publish bidding opportunities to prospective bidders on the CDOT Business Center website. The forms on this website will state the location and description of the contemplated construction and will show the estimate of the various quantities and types of work to be performed or materials to be furnished and will have a schedule of items inviting unit bid prices. The proposal form will state the time that the project must be completed, the amount of the proposal guaranty, and the date, time, and place of the opening of proposals.

All bidders on projects shall submit electronic bids only. Innovative delivery method projects such as Design-Build, CMGC and Best Value, are not subject to this electronic bidding requirement.

The plans, specifications, and other documents designated in the proposal form, will be considered a part of the proposal.

The prospective bidder shall pay the Department the sum stated in the Invitation for Bids for each paper set of plans.

102.03 Interpretation of Quantities in Proposal Form. Except as otherwise provided in this subsection and the method of measurement for individual items, the quantities appearing in the proposal form are estimates prepared for the comparison of proposals. Payment to the Contractor will be made per the following procedures:

(a) Measurement required. When the Contract requires measurement of work performed or material furnished, payment will be made for actual quantities measured and accepted.

(b) Measurement Not Required. When the Contract does not require quantities of work performed or materials furnished to be measured, payment will be made for the quantities appearing in the Contract.

The estimated quantities of work to be performed and materials to be furnished may be increased, decreased or omitted.

102.04 Interpretation of Plans and Specifications Any changes to proposal forms, plans, or specifications before the opening of proposals will be issued by the Department through posting of the changes on the Department's Schedule Bid Openings web page, Business Management System (B2GNow), and the Electronic Bid System.