2026 Missouri Standard Specific - MHTC (October 2026) - Combined.pdf

CONTENTS

Division 100 General Conditions of the Contract

Division 200 Grading and Removals

Division 300 Bases and Aggregate Surfaces

Division 400 Flexible Pavements

Division 500 Rigid Pavements

Division 600 Incidental Construction

Division 700 Structures

Division 800 Roadside Development

Division 900 Traffic Control Facilities

Division 1000 Materials Details

This document is not compliant with Section 508 of the Rehabilitation Act of 1973.

To request this content in an accessible format, please contact the Engineering Policy Services (EPS) Group by email: Engineering.Policy@modot.mo.gov.

General Provisions and Supplemental Specifications*

*For convenience, the Supplemental Specifications are incorporated into the Divisions.

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DIVISION 100

GENERAL CONDITIONS OF THE CONTRACT

Sec 101 Definition of Terms Sec 102 Bidding Requirements and Conditions Sec 103 Award and Execution of Contract Sec 104 Scope of Work Sec 105 Control of Work Sec 106 Control of Material Sec 107 Legal Relations and Responsibility to the Public Sec 108 Prosecution and Progress Sec 109 Measurement and Payment Sec 110 State and Federal Wage Rates and Other Requirements

DIVISION 200

GRADING AND REMOVALS

Sec 201 Clearing and Grubbing Sec 202 Removal of Roadways and Buildings Sec 202.10 Plugging and Closure of Wells Sec 202.20 Septic Tank Plugging and Disposal Sec 202.30 Removal of Improvements for Roadway Contracts Sec 202.40 Demolition and Removal of Buildings Sec 202.50 Removal of Contaminated Material and Storage Tanks Sec 202.60 Individual Wastewater Lagoon Closures Sec 203 Roadway and Drainage Excavation, Embankment and Compaction Sec 204 Embankment Monitoring Sec 204.10 Settlement Gauges Sec 204.20 Pore Pressure Measurement Devices Sec 205 Modified Subgrade Sec 206 Excavation for Structures Sec 207 Linear Grading Sec 208 Interception Ditch Sec 209 Subgrade Preparation Sec 210 Subgrade Compaction Sec 211 Subgrade Scarifying Sec 212 Subgrading and Shouldering Sec 213 Blank Sec 214 Rock Fill Sec 215 Shaping Slopes Sec 216 Removals for Bridge Structures Sec 216.10 Removals of Bridges Sec 216.20 Scarification of Bridge Deck Sec 216.30 Seal Coat and Wearing Surface Removal Sec 216.40 Removal and Storage of Existing Bridge Rail Sec 216.50 Removal of Existing Bridge Deck Sec 216.60 Partial Removal of Existing Bridge Deck Sec 216.70 Partial Removal of Culvert and Substructure Concrete Sec 216.80 Curb Removal Sec 216.90 Removal of Existing Expansion Joint and Adjacent Concrete Sec 216.100 Removal of Existing Expansion Joint Seal or Sealant Sec 216.110 Total Surface Hydro Demolition

DIVISION 300

BASES AND AGGREGATE SURFACES

Sec 301 Blank Sec 302 Stabilized Permeable Base Sec 303 Rock Base Sec 304 Aggregate Base Course Sec 305 Blank Sec 306 Blank Sec 307 Blank Sec 308 Blank Sec 309 Blank Sec 310 Aggregate Surface

DIVISION 400

FLEXIBLE PAVEMENTS

Sec 401 Plant Mix Bituminous Base and Pavement Sec 402 Plant Mix Bituminous Surface Leveling Sec 403 Asphaltic Concrete Pavement Sec 404 Bituminous Mixing Plants Sec 405 Blank Sec 406 Paver-Mounted Thermal Profiles Sec 407 Tack Coat Sec 408 Prime Coat Sec 409 Seal Coat Sec 410 Blank Sec 411 Blank Sec 412 Blank Sec 413 Surface Treatments Sec 413.10 Micro-Surfacing Sec 413.20 Scrub Seal Sec 413.30 Ultrathin Bonded Asphalt Wearing Surface Sec 413.31 Bonded Hot Mix Asphalt Using Polymer Modified Emulsion Membrane Sec 413.40 Bituminous Fog Sealing Sec 413.50 Bituminous Pavement Crack Sealing Sec 413.60 Portland Cement Concrete Pavement Joint/Crack Sealing Sec 413.70 Bituminous Pavement Crack Filling Sec 413.80 Portland Cement Concrete Pavement Crack Filling

DIVISION 500

RIGID PAVEMENTS

Sec 501 Concrete Sec 502 Portland Cement Concrete Base and Pavement Sec 503 Bridg e Approach Slab Sec 504 Concrete Approach Pavement Sec 505 Bridg e Deck Concrete Wearing Surface Sec 505.10 Low Slump Concrete Sec 505.20 Latex Modified Concrete Sec 505.30 Silica Fume Concrete Sec 505.40 Latex Modified Very Early Streng th Concrete Sec 505.50 CSA Cement Very Early Streng th Concrete Sec 505.60 Steel Fiber Reinforced Concrete Sec 505.70 Polyester Polymer Concrete Sec 506 Concrete Overlays for Pavement Sec 506.10 Bonded Concrete Overlays of Asph alt Pavements Sec 506.20 Unbonded Concrete Overlays of Concrete Pavements Sec 506.30 Unbonded Concrete Overlays on Asph alt Pavements Sec 507 Streng th of Concrete Using th e Maturity Meth od

DIVISION 600

INCIDENTAL CONSTRUCTION

Sec 601 Field Laboratories Sec 602 Markers Sec 603 Water Line Installation Sec 604 Miscellaneous Drainage Sec 604.10 Concrete Headwalls, Drop Inlets and Manholes Sec 604.20 Adjusting Drainage Facilities Sec 604.30 Adjusting House Sewer Connections Sec 604.40 Pipe Collars Sec 604.50 Connecting Pipe to Existing Structures Sec 604.60 Slotted Drain Sec 605 Underdrainage Sec 605.10 Pipe Aggregate Pavement Edge Drain Sec 605.20 Geocomposite Pavement Edge Drain Sec 605.30 Pipe Aggregate Pavement Cross Drain Sec 605.40 Structural Underdrain Sec 605.50 French Underdrain Sec 605.60 Outlet Pipes and Splash Pads Sec 605.70 Aggregate Drains Sec 606 Guardrail, Crashworthy End Terminals, One-Strand Access Restraint Cable and High-Tension Guard Cable Sec 606.10 Guardrail Sec 606.20 Blank Sec 606.30 Crashworthy End Terminals Sec 606.40 One-Strand Access Restraint Cable Sec 606.50 High-Tension Guard Cable Sec 607 Fencing Sec 607.10 Chain-Link Fence Sec 607.20 Woven Wire Fence Sec 608 Concrete Median, Median Strip, Sidewalk, Curb Ramps, Steps and Paved Approaches Sec 609 Paved Drainage Sec 609.10 Concrete Curb, Gutter and Paved Ditch Sec 609.20 Integral Curb Sec 609.30 Asphalt Curb Sec 609.40 Drain Basin Sec 609.50 Blank Sec 609.60 Rock Ditch Liner Sec 609.70 Rock Lining Sec 610 Pavement Smoothness Sec 611 Embankment Protection Sec 611.10 Blank Sec 611.20 Blank Sec 611.30 Rock Blanket Sec 611.40 Blank Sec 611.50 Revetment Sec 611.60 Concrete Slope Protection Sec 611.70 Gabions Sec 612 Impact Attenuators Sec 613 Pavement Repair Sec 613.10 Full Depth Pavement Repairs Sec 613.20 Class A Partial Depth Pavement Repairs Sec 613.30 Class B Partial Depth Pavement Repairs Sec 613.35 Class C Partial Depth Pavement Repairs Sec 613.40 Dowel Bar Retrofit Sec 613.50 Cross Stitching Sec 614 Drainage Fittings Sec 614.10 Grates and Bearing Plates

Sec 614.20 Automatic Floodgate Sec 614.30 Manhole Frame and Cover and Curb Inlet Sec 615 Blank Sec 616 Temporary Traffic Control Sec 617 Concrete Traffic Barrier Sec 617.10 Permanent Concrete Traffic Barrier Sec 617.20 Temporary Traffic Barrier Sec 617.30 Concrete Traffic Barrier Delineators Sec 618 Mobilization Sec 619 Pavement Edge Treatment Sec 620 Pavement Marking Sec 620.10 Temporary Pavement Marking Sec 620.20 Permanent Pavement Marking Sec 620.30 Drop-On Glass Beads Sec 620.40 Quality Control and Quality Assurance Sec 620.50 Pavement Marking Removal Sec 620.60 Contrast Pavement Markings Sec 621 Flowable Backfill Sec 622 Pavement and Bridge Surface Removal and Texturing Sec 622.10 Cold Milling Existing Pavement for Removal of Surface Sec 622.20 Cold Milling Pavement for a Driving Surface Sec 622.30 Diamond Grinding of Existing Portland Cement Concrete Pavement Sec 622.40 Diamond Grinding of New Portland Cement Concrete Pavement Sec 623 Polymer Products Sec 623.10 Concrete Bonding Compound Sec 623.20 Epoxy Mortar Sec 623.30 Epoxy Polymer Wearing Surface Sec 623.40 Polymer Concrete Sec 623.50 Methyl Methacrylate Polymer Slurry Wearing Surface Sec 624 Geotextile Construction Sec 625 Slab Stabilization Sec 625.10 Slab Undersealing Sec 625.20 Slab Jacking Sec 626 Rumble Strips Sec 627 Contractor Surveying and Staking

DIVISION 700

STRUCTURES

Sec 701 Drilled Shafts Sec 702 Load-Bearing Piles Sec 703 Concrete Masonry Construction Sec 704 Concrete Masonry Repair Sec 705 Prestressed Concrete Members for Bridges Sec 706 Reinforcing Steel for Concrete Structures Sec 707 Conduit System on Structure Sec 708 Blank Sec 709 Blank Sec 710 Epoxy Coated Reinforcing Steel Sec 711 Protective Coatings for Exposed Concrete Surfaces Sec 712 Structural Steel Construction Sec 713 Thrie Beam for Bridge Guardrail Sec 714 Blank Sec 715 Vertical Drain at End Bents Sec 716 Neoprene Bearings Sec 716.10 Plain and Laminated Neoprene Bearing Pads Sec 716.20 Laminated Neoprene Bearing Pad Assembly Sec 716.30 Type “N” Polytetrafluoroethylene (PTFE) Bearings Sec 717 Flexible Joint Systems Sec 717.10 Preformed Compression Seal Sec 717.20 Strip Seal Sec 717.30 Silicone Expansion Joint Sealant Sec 717.40 Silicone Joint Sealant for Saw Cut and Formed Joints Sec 717.50 Open Cell Foam Joints Sec 717.60 Preformed Silicone or EPDM Expansion Joints Sec 718 Temporary Bridge Sec 719 Blank Sec 720 Mechanically Stabilized Earth Wall Systems Sec 721 Blank Sec 722 Blank Sec 723 Blank Sec 724 Pipe Culverts Sec 725 Metal Pipe and Pipe-Arch Culverts Sec 726 Rigid Pipe Culverts Sec 727 Structural Plate Pipe and Structural Plate Pipe-Arch Culverts Sec 728 Blank Sec 729 Blank Sec 730 Thermoplastic Pipe Culverts Sec 731 Precast Reinforced Concrete Manholes and Drop Inlets Sec 732 Flared End Sections Sec 733 Precast Concrete Box Culverts Sec 734 Installation of Pipe By Horizontal Boring Methods Sec 735 Culvert Pipe Liner

DIVISION 800

ROADSIDE DEVELOPMENT

Sec 801 Lime and Fertilizer Sec 802 Mulching Sec 803 Sodding Sec 804 Topsoil Sec 805 Seeding Sec 806 Pollution, Erosion and Sediment Control Sec 806.10 Temporary Berms Sec 806.20 Temporary Slope Drains Sec 806.30 Temporary Ditch and Inlet Checks Sec 806.40 Sediment Basins Sec 806.50 Temporary Seeding Sec 806.60 Sediment Trap Sec 806.70 Silt Fence Sec 806.80 Temporary Pipe Sec 806.90 Erosion Control Blankets and Turf Reinforcement Mats Sec 806.100 Temporary Stream Crossing Sec 806.110 Sediment Removal Sec 807 Blank Sec 808 Planting Trees, Shrubs and Other Plants

DIVISION 900

TRAFFIC CONTROL FACILITIES

Sec 901 Highway Lighting Sec 902 Traffic Signals Sec 903 Highway Signing

DIVISION 1000

MATERIALS DETAILS

Sec 1001 General Requirements for Material Sec 1002 Aggregate for Asphaltic Concrete Sec 1003 Aggregate for Seal Coats Sec 1004 Graded Aggregate for Bituminous Surface Sec 1005 Aggregate for Concrete Sec 1006 Aggregate for Surfacing Sec 1007 Aggregate for Base Sec 1008 Blank Sec 1009 Aggregate for Drainage Sec 1010 Select Granular Backfill for Structural Systems Sec 1011 Geotextile Sec 1012 Geocomposite Drainage Material Sec 1013 Miscellaneous Drainage Material Sec 1014 Blank Sec 1015 Bituminous Material Sec 1015.10 Performance Graded Asphalt Binder Sec 1015.20 Liquid Bituminous Material Sec 1016 Blank Sec 1017 Slag Cement Sec 1018 Fly Ash for Concrete Sec 1019 Cement Sec 1020 Corrugated Metallic-Coated Steel Culvert Pipe, Pipe-Arches and End Sections Sec 1021 Bituminous-Coated Corrugated Metal Culvert Pipe and Pipe-Arches Sec 1022 Corrugated Metallic-Coated Steel Pipe Underdrain Sec 1023 Structural Plate Pipe and Pipe-Arches Sec 1024 Corrugated Aluminum Alloy Culvert Pipe and Corrugated Aluminum Alloy Structural Plate Sec 1025 Corrugated Aluminum Alloy Pipe Underdrains Sec 1026 Reinforced Concrete Culvert Pipe Sec 1027 Polymer-Coated Corrugated Metal Culvert Pipe and Pipe-Arches Sec 1028 Corrugated Polyvinyl Chloride Culvert Pipe Sec 1029 Fabricating Prestressed Concrete Members for Bridges Sec 1030 Vitrified Clay Sewer and Culvert Pipe Sec 1031 Clay Drain Tile Sec 1032 Precast Concrete Flared End Sections Sec 1033 Precast Drainage Units Sec 1034 Reinforced Concrete Elliptical Culvert Pipe Sec 1035 Reinforced Concrete Arch Culvert Sec 1036 Reinforcing Steel for Concrete Sec 1037 Shear Connectors Sec 1038 Bearing Pads for Structures Sec 1039 Polymer Products Sec 1039.10 Type II Epoxy Sec 1039.20 Type III Epoxy Sec 1039.30 Epoxy or Polyester Bonding Agents For Dowels Sec 1039.40 Epoxy Bonding Agents for Resin Anchor Systems Sec 1039.50 Sand For Epoxy Mortar Sec 1039.60 Epoxy Polymer Wearing Surface Sec 1039.70 Polymer Concrete Sec 1039.80 Methyl Methacrylate (MMA) Polymer Slurry Wearing Surface Sec 1039.90 Polyester Polymer Wearing Surface Sec 1040 Guardrail, End Terminals, One-Strand Access Restraint Cable and Guard Cable Material Sec 1041 Polypropylene Culvert Pipe Sec 1042 Highway Sign Material Sec 1043 Fence Material Sec 1044 Posts for Markers and Delineators Sec 1045 Paint for Structural Steel

Sec 1046 Pipe Liner Sec 1047 Corrugated Polyethylene Culvert Pipe Sec 1048 Pavement Marking Material Sec 1048.10 Temporary Pavement Marking Materials Sec 1048.20 Permanent Pavement Marking Materials Sec 1048.30 Drop-On Glass Beads Sec 1049 Precast Concrete Box Culverts Sec 1050 Lumber, Timber, Piling, Posts and Poles Sec 1051 Slotted Drain Sec 1052 Mechanically Stabilized Earth Wall (MSE) and Sound Wall System Components Sec 1052.10 Metallic Soil Reinforcement Sec 1052.20 Non-Metallic Soil Reinforcement Sec 1052.30 Precast Modular Panel Wall (PMPW-MSE) and Sound Wall Systems – Concrete-Facing Panels Sec 1052.40 Drycast Modular Block Wall (DMBW-MSE) and Wetcast Modular Block Wall (WMBW-MSE) Systems – Concrete Blocks Sec 1053 Concrete Sealer and Concrete Crack Filler Sec 1053.10 Penetrating Concrete Sealer Sec 1053.20 Concrete Crack Filler Sec 1054 Concrete Admixtures Sec 1055 Concrete Curing Material Sec 1056 Concrete Tinting and Staining Material Sec 1056.10 Concrete Tinting Material Sec 1056.20 Concrete Staining Material Sec 1057 Material for Joints Sec 1058 Polyethylene Sheeting Sec 1059 Protective Coating Material Sec 1059.10 Protective Coating – Concrete Bents and Piers (Urethane) Sec 1059.20 Protective Coating – Concrete Bents and Piers (Epoxy) Sec 1059.30 Concrete and Masonry Protection System Sec 1059.40 Sacrificial Graffiti Protection System Sec 1059.50 Temporary Coating – Concrete Bents and Piers (Weathering Steel) Sec 1060 Electrical Conduit Sec 1061 Electrical Conductors Sec 1062 Pull and Junction Boxes Sec 1063 Temporary Traffic Control Devices Sec 1064 Temporary Concrete Traffic Barrier Sec 1065 Delineators Sec 1066 Mortars and Grout Sec 1067 Truncated Domes Sec 1068 Trench Drains Sec 1069 Blank Sec 1070 Water Sec 1071 Asphalt Release Agents, Fiber Additives and Liquid Anti-Strip Additives Sec 1072 Blank Sec 1073 Joint Material for Structures Sec 1074 Blank Sec 1075 Centrifugally – Cast Fiberglass-Reinforced Polymer Mortar Pipe Sec 1076 Blank Sec 1077 Blank Sec 1078 Blank Sec 1079 Blank Sec 1080 Structural Steel Fabrication Sec 1081 Coating of Structural Steel Sec 1082 Blank Sec 1083 Blank Sec 1084 Blank Sec 1085 Blank Sec 1086 Blank Sec 1087 Blank

Sec 1088 Blank Sec 1089 Blank Sec 1090 Blank Sec 1091 Lighting Equipment Sec 1092 Signal Equipment

SECTION 101

DEFINITION OF TERMS

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

101.1 Abbreviations.

AASHTO American Association of State Highway and Transportation Officials

AISC American Institute of Steel Construction

AGC Associated General Contractors of America

ANSI American National Standards Institute

AREA American Railroad Engineering Association

ASME American Society of Mechanical Engineers

ASTM ASTM International

AWG American Wire Gauge

AWPA American Wood-Preservers’ Association

AWS American Welding Society

AWWA American Water Works Association

CFR Code of Federal Regulations

CS Commercial Standards, U. S. Department of Commerce

CSR Code of State Regulations

COE Corps of Engineers

CUF Commercially Useful Function

DBE Disadvantaged Business Enterprise

EEI Electrical Engineer’s Institute

EEO Equal Employment Opportunity

EPA Environmental Protection Agency

EPG Engineer Policy Guide

ESAL Equivalent 18-kip Single Axle Load

FCC Federal Communications Commission

FHWA Federal Highway Administration

GRI Geosynthetic Research Institute

ICEA Insulated Cable Engineers Association

IMSA International Municipal Signal Association

ITE Institute of Transportation Engineers

LED Light Emitting Diode

MASH AASHTO Manual for Assessing Safety Hardware

MDC Missouri Department of Conservation

MDNR Missouri Department of Natural Resources

MGS Midwest Guardrail System

MHTC Missouri Highways and Transportation Commission

MoDOT Missouri Department of Transportation

MSDS Material Safety Data Sheet

MUTCD Manual on Uniform Traffic Control Devices

NCHRP 350 National Cooperative Highway Research Program (NCHRP) Report 350, Recommended Procedures for the Safety Performance Evaluation of Highway Features

NEC National Electrical Code

NEMA National Electrical Manufacturers Association

NESC National Electrical Safety Code

NFPA National Fire Protection Association

NRCS Natural Resources Conservation

NRMCA National Ready Mixed Concrete Association

OSHA Occupational Safety and Health Administration

PAL Pre-Acceptance List

PS U.S. Product Standard, U.S. Department of Commerce

PWL Percent Within Limits

QA Quality Assurance

QC Quality Control

RETMA Radio Electronics Television Manufacturer’s Association

RSMo Revised Statutes of the State of Missouri

SAE Society of Automotive Engineers

SHPO State Historic Preservation Office

SSPC Society of Protective Coatings

SWPPP Stormwater Pollution Prevention Plan

UCP Unified Certification Program

UL Underwriter’s Laboratory

USA United States of America

USACE United States Army Corps of Engineers

USC United States Code

USCG United States Coast Guard

USFW United States Fish and Wildlife

VOC Volatile Organic Compound

101.1.1 Unit Symbols.

h hour ppm parts per million rpm revolutions per minute vpm vibrations per minute cf cubic feet cy cubic yards

F degrees Fahrenheit ft foot/feet in inch/inches lb pound/pounds lf linear foot/feet psf pounds per square foot psi pounds per square inch sf square foot/square feet sy square yard/square yards

101.2 Definitions of Terms.

Advertisement. The public announcement, as required by law, inviting bids for work to be performed or material to be furnished.

Appreciable Error. Any of the following will be considered an appreciable error: an error resulting in a change in quantity of 10 percent from the original contract quantity of an item; an error resulting in a monetary change of at least $5,000 from an original contract item amount; or an error in the calculation of a contract item quantity based on the finite dimensions shown on the plans.

Auxiliary Lane. The portion of the roadway adjoining the traveled way and designated for speed change, or for other purposes supplementary to through traffic movement.

Award. The action of the Commission accepting the bid of the lowest responsible bidder for the work, subject to the execution and approval of a satisfactory contract therefore and bond to secure the performance thereof, and to such other conditions as may be specified or as required by law.

Bid. The written offer submitted by the bidder in the required manner on the bid to perform the work provided in the bidding documents at contract bid prices.

Bid Guaranty. The security furnished with a bid to ensure that the bidder will enter into the contract if the bid is accepted.

Bid Records. All writings, working papers, computer printouts, charts and all other data compilation that contain or reflect information, data or calculations used by the bidder to determine each contract unit price in the bid submitted, including but not limited to material relating to the determination and application of:

labor rates equipment rates home and field overhead rates and related time schedules efficiency or productivity factors arithmetic extensions subcontractors, truckers and material supplier quotations profit contingencies

Any manuals standard to the industry that are used by the bidder in determining the bid shall be included in the bid records by reference and shall show the name and date of the publication and the publisher.

Bidder. Any individual, partnership, corporation, joint venturer or other entity submitting a bid to perform the contemplated work.

Bidding Documents. The documents furnished by the Commission comprising the Request for Bid, plans, Missouri Standard Plans for Highway Construction, addenda, Supplemental Specifications and General Provisions, Missouri Standard Specifications for Highway Construction and all other documents included in or referred to in those documents.

Bridge. A structure having a clear span greater than 20 feet measured on a horizontal plane along the centerline of roadway; also a multiple span structure where the total length of spans is in excess of 20 feet. For both single and multiple span bridges, the clear span shall be construed to mean the total distance from stream face to stream face of end bents or outer walls of the structure.

Business Day. A day that MoDOT is open for business, excluding holidays, Saturdays and Sundays.

Calendar Day. Any day of the calendar year, including holidays, Saturdays and Sundays.

Central Laboratory. The central testing laboratory of the Commission for inspecting and determining the suitability of material.

Change Order. A written order from the engineer to the contractor, as authorized by the contract, directing changes in the work as made necessary or desirable by unforeseen conditions or events discovered or occurring during the progress of the work.

Change in the Work. An item of work not provided for in the contract as awarded, but found essential to the satisfactory completion of the contract. Contract adjustments for changes in work related to differing site conditions shall be determined in accordance with the contract provisions relating to differing site conditions.

Claim. A written request or demand for adjustment to the compensation due or time of performance of the contract made within the time, in the form, and pursuant to the provisions for such contract adjustments specified elsewhere in the contract documents of which these specifications are a part.

Commission. The Missouri Highways and Transportation Commission.

Contract. The written agreement between the Commission and the contractor covering the performance of the work for the proposed construction. The contract will include all contract documents. The contract may cover a single project or a combination of projects awarded as a single unit.

Contract Bond. The form of security approved by the Commission, furnished by the contractor and surety or sureties, guaranteeing complete performance of the contract and the payment of all legal debts pertaining to the construction of the project, or arising from the contract and the duties thereunder, and conditioned as may be required by the laws of the State of Missouri.

Contract Documents. Notice to Contractors, all Bidding Documents, Contract Bond, Contract Agreement, Acknowledgment, Contractor Questionnaire, Notice to Proceed, and all Change Orders.

Contract Time or Completion Date. The number of working days or calendar days shown in the bidding document as the time allowed for the completion of the work contemplated in the contract. If a calendar date for completion is shown in the bidding document, the contemplated work shall be completed by that date.

Contractor. The individual, partnership, corporation or joint venture undertaking performance of the work under the terms of the contract, and acting directly or through the contractor or contractor’s agents, employees or subcontractors.

Controversy. A dispute or disagreement between a contractor and the Commission related to interpretation of contract documents or the engineer’s decision under contracts entered into by the contractor with the Commission made in writing and in compliance with the requirements for resolutions of controversies under the contract, but which is not a claim under the contract, all as provided elsewhere in the contract documents of which these specifications are a part.

Cost. Cost will mean the actual cost incurred, as distinguished from forecasted cost and determined in accordance with prevailing principles applicable to public contracts including Contract Cost Principles and Procedures, 48 CFR, Part 31 and Government Auditing Standards, as published by the Comptroller General of the United States.

Crashworthy End Terminal. This term will apply to both crashworthy end terminals and crash cushions.

Culvert. A structure not classified as a bridge that provides an opening under any portion of a roadway.

Days. Days as used in the contract documents will mean calendar days, unless specified otherwise.

Delay. Any event, action, force or factor that causes the established contract time to be exceeded for performance of the contract.

(a) Compensable Delay. An excusable delay for which the contractor may be entitled to additional monetary compensation

(b) Excusable Delay. A delay to the contract or milestone completion date that was beyond the contractor’s control and not caused by the contractor’s fault or negligence and for which a contract or milestone time extension may be granted.

(c) Noncompensable Delay. An excusable delay for which the contractor may be entitled to an extension of time, but no additional monetary compensation.

(d) Nonexcusable Delay. A delay to the contract or milestone completion date that was reasonably foreseeable and within control of the contractor, for which no monetary compensation or time extension will be granted.

Differing Site Conditions. Subsurface or latent physical conditions at the site differing materially from those indicated in the contract, or unknown physical conditions of an unusual nature differing materially from those ordinarily encountered and generally recognized as inherent in the work

Disadvantaged Business Enterprise, or DBE. A contracting firm certified to participate in U.S. Department of Transportation financial assistance programs as a DBE by MoDOT or by the Missouri Unified Certification Program (UCP) pursuant to Title 49 CFR, Part 26, and pursuant to Title 7 CSR Division 10, Chapter 8, governing MoDOT’s DBE Program.

Divided Highway. A highway with separated traveled ways for traffic in opposite directions. Traveled ways separated by painted medians will not be considered divided.

Drainage Ditch. An open depression constructed for the purpose of carrying off surface water.

Engineer. The chief engineer or any other authorized representative of the Commission. Where the term chief engineer is used, the term shall mean the chief engineer in person. MoDOT pursues its mission through the functional units defined by law. Where a functional unit is stated in the contract documents, it will mean the engineer of the functional unit or designee.

Equitable Adjustment. An adjustment to the time or price specified in the contract based upon contractor’s actual and reasonable costs to perform the work for the reasons and determined by the methods specified elsewhere in the contract documents.

Extent of the Federal Share. The percentage of federal participation in the costs of the project agreed to between USDOT, FHWA and MHTC before the project is awarded. It does not mean, with regard to contract adjustments, an amount of additional federal participation to be provided regarding the project.

Gender Related Terms. No gender restrictions or limitations are intended or suggested by the use of terms “he”, “him”, “his”, “it” or “its” in these specifications.

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

Holidays. Missouri public legal holidays are:

January 1 - New Year’s Day

Third Monday in January - Martin Luther King Day

February 12 - Lincoln’s Birthday

Third Monday in February - President’s Day

May 8 - Truman’s Birthday

Last Monday in May - Memorial Day

June 19- Juneteenth

July 4 - Independence Day

First Monday in September - Labor Day

Second Monday in October - Columbus Day

November 11 - Veterans Day

Fourth Thursday in November - Thanksgiving Day

December 25 - Christmas Day

When any of the above holidays fall on a Sunday, the holiday will be observed on the following Monday; when any of the above holidays fall on a Saturday, the holiday will be observed on the immediately preceding Friday.

Laboratory. The Central Laboratory or any other testing laboratory that may be designated by the engineer for inspecting and determining the suitability of material.

Lead Workers. Hourly employees in direct charge of the specific operations on a project. Formerly referred to as the foremen.

Local Traffic. Traffic that has either its origin or its destination at some point within the limits of the project.

Local traffic will also include that traffic on all side roads that lead into the project where such traffic does not have a satisfactory outlet over a public road or street.

Major and Minor Items of Work. Any item having an original value in excess of 10 percent of the original contract amount will be considered as a major item or items. All other original contract items will be considered as minor. Where major contract items are not identified, the original contract item of greatest total cost, computed from the original contract price and estimated quantity, and such other original contract items next in sequence of lower total cost, computed in like manner, necessary to show a total cost at original prices and quantities of no less than 60 percent of the original contract cost will be considered as a major item or items.

Median. The portion of a divided highway separating the traveled ways for traffic in opposite directions.

Notice of Bid Opening. The notification provided prospective bidders, containing a description of the proposed work, instructions, information and the reservation of the right of the Commission to reject any and all bids.

Notice to Contractors. The document contained in the bidding document describing the work to be performed and including information and requirements for the submission of bids.

Notice to Proceed. The written notice from the engineer notifying the contractor of the date on or before which prosecution of the work is to begin.

Outer Roadway Or Service Road. A roadway auxiliary to and located on the side of the throughway for service to abutting property and adjacent areas.

Pay Item. An item of work specifically described and for which a price, either unit or lump sum, is provided. It includes the performance of all work and the furnishing of all labor, equipment and material contemplated or described on the plans or in the text of the specification item included in the contract.

Plans. Detailed construction drawings or reproductions thereof, which show the location, character and details of the work. When referenced in the contract documents, plans will include both the project specific drawings and the standard drawings.

Project. The specific section of the highway, including all appurtenances and construction to be performed thereon under the contract.

Request for Bid. The document furnished by the Commission that includes a complete set of bidding forms and appendices, and certain contract terms, which are made a part of the bidding document by reference.

Right of Way. Land acquired by the Commission for the construction and maintenance of a highway.

Roadbed. The graded portion of a highway between the outside shoulder lines, including the base course, surface course, shoulders and median.

Roadway. The portion of the highway within the limits of construction, including bridges and other structures.

Road User Cost. Includes a combination of both road user delay costs and work zone accident costs.

Sec. Refers to sections in the standard and supplemental specifications unless specified otherwise in the contract documents.

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.

Shall. When used in the contract documents, states a mandatory duty on the part of the contractor.

Significant Change in the Work. When the character of the work, as altered, (1) differs materially in kind or nature from that involved or included in the original proposed construction or (2) when a major item of work as defined elsewhere in the contract is increased in excess of 125 percent or decreased below 75 percent of the original contract quantity.

Specifications. The compilation of provisions and requirements for the performance of prescribed work.

(a) Standard Specifications. A book of specifications approved for general application and repetitive use.

(b) Supplemental Specifications. Approved additions and revisions to the standard specifications.

(c) Special Provisions. Revisions to the standard and supplemental specifications applicable to an individual project.

State. The State of Missouri, acting by and through the Commission.

Subcontractor. Any individual, partnership, corporation, joint venture or other entity to whom the contractor, with the written consent of the engineer, sublets any part of the work under the contract.

Substructure. That part of a bridge structure below the bearings of simple and continuous spans; all buttresses and piers below the skewbacks of arches; all parts of rigid frames, or integral bents below tops of footings or tops of caissons; and also, all parts of the abutments, backwalls and wingwalls, except handrails and handrail posts.

Superstructure. All parts of a bridge structure not defined as substructure.

Surety. A corporate body duly authorized to do business in the State of Missouri, and which has executed a bid bond with the bidder or a contract bond with the contractor.

Temporary Structures. Structures required for the use of traffic while construction is in progress and not designated to remain a part of the permanent roadway.

Throughway. A general term denoting a highway primarily for through traffic, usually on a continuous route.

Through Traffic. Traffic which has neither its origin nor its destination within the limits of the project.

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

Unbalanced Bid, Materially. A bid that generates a reasonable doubt that award to the bidder submitting a mathematically unbalanced bid will result in the lowest ultimate cost to the Commission.

Unbalanced Bid, Mathematically. A bid containing lump sum or unit bid items that do not reflect reasonable actual costs plus a reasonable proportionate share of the bidder’s anticipated profit, overhead costs and other indirect costs.

Will. When used in the contract documents, states a mandatory duty on the part of the engineer or department or on the part of both the engineer or department and the contractor, which is indicated by the context of use.

USA. Any of the 50 states, the District of Columbia, Puerto Rico and any other territories and possessions of the United States of America.

Work. The furnishing of all labor, material, equipment and other incidentals necessary or convenient to the successful completion of the project and the carrying out of all of the duties and obligations imposed by the contract.

Working Drawings. Stress sheets, shop drawings, erection plans, falsework plans, framework plans, cofferdam plans, bending diagrams for reinforcing steel or any other supplementary plans or similar data which the contractor will be required to submit to the engineer for approval.

SECTION 102

BIDDING REQUIREMENTS AND CONDITIONS

102.1 Notice of Bid Opening. After the date is fixed for the receipt of bids, the notice of bid opening will be posted on MoDOT’s website and published as required by law. The notice of bid opening will contain a description of the proposed work, instructions and information to the potential bidder regarding bid forms, plans, specifications, combination bids and the reservation of the right of the Commission to reject any and all bids.

102.2 Contractor Questionnaire. Each prospective bidder, including a joint venture, shall file a contractor questionnaire on the form furnished by the Commission, which is available on MoDOT’s website. The contractor questionnaire shall be furnished to the Commission as a separate document apart from any other document submitted. A bid will not be opened and read unless a fully responsive contractor questionnaire is on file with the Commission at least seven days prior to the time set for the opening of the bids. A new contractor questionnaire shall be filed as described in Title 7 CSR 10-15.010, except the Commission reserves the right to request a contractor questionnaire from any contractor as of any date if the Commission has shown reason to believe that the contractor’s experience data may have changed from that shown on the questionnaire on file.

This document shall include a record of the bidder’s experience data. The Commission will use this information as an aid to determine in each instance the lowest responsible bidder and nothing contained herein shall be construed as depriving the Commission of the Commission’s discretion in the matter of determining the lowest responsible bidder.

102.2.1 At any time prior to award, as a condition of award and for a period of three years after the date of final acceptance, the Commission may request true copies of the bidder’s financial data, including the bidder’s balance sheet, profit and loss statement and similar financial data, as of the close of the bidder’s most recent fiscal year prior to submission of the bid, and for each fiscal year between the contract award and final acceptance of the contract work. Unless specified otherwise by the Commission, financial data shall be prepared by an accountant and audited financial data shall be provided if it is available to the bidder for the fiscal period requested. A bidder who has not closed the first fiscal year prior to the date of the request shall supply the last periodic balance sheet, profit and loss statement and similar data.

102.2.2 Each prospective bidder shall sign the contractor questionnaire acknowledging that such bidder will fully comply with all written requests by the Missouri Department of Labor and Industrial Relations, Division of Labor Standards, to provide information for the purpose of establishing a prevailing wage.

102.2.3 The prospective bidder doing business in the State of Missouri, shall submit the charter number with the contractor questionnaire. The entity must be in good standing on file with the Corporation Division of the Missouri Secretary of State’s Office to be approved and successfully awarded a bid. Each corporation that is a party to a joint venture shall submit the same required report with the corporation’s joint venture contractor questionnaire.

102.2.4 All prospective bidders who are corporations organized in states other than Missouri or countries other than the USA shall furnish, at the prospective bidder’s cost, a certified copy of a current certificate of authority to do business in Missouri, with said certificate to remain on file with the Commission. Such a certified copy may be secured from the corporation supervisor in the Office of the Secretary of State, Jefferson City, Missouri.

The prospective bidder agrees to cause the prospective bidder’s authority to do business as a foreign corporation to be continued and extended throughout the life of any contract awarded and until all claims thereon and thereunder shall have been finally settled. All prospective bidders shall have a valid certificate of authority to transact business in Missouri at the time of bid opening as a condition of responsiveness.

102.3 Bidding. All bids shall be submitted electronically using the BidExpress® website. Any bid not submitted electronically will be considered irregular in accordance with Sec 102.8

102.3.1 MoDOT uses the BidExpress® website (www.bidx.com) as the official depository for electronic bid submittals. MoDOT will ensure that this electronic bid depository is available for a two-hour period prior to the deadline for submission of bids. In the event of disruption of national communications or loss of services by www.bidx.com during this two-hour period, MoDOT will delay the deadline for bid submissions to ensure the ability of potential bidders to submit bids. Notifications and instructions of delay will be communicated to potential bidders.

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102.3.2 The Commission will make the bidding documents available to the prospective bidder. The documents will state the location, description and requirements of the contemplated construction and will show the estimate of the various quantities and types of work to be performed or material to be furnished, and will have a schedule of items for which unit bid prices are invited. The bidding documents will state the time in which the work shall be completed, the amount of the bid guaranty and the date, time and place of the opening of bids.

102.3.3 Bidders that submit bids via the internet shall have on file with the Commission an “Electronic Signature Agreement”, a copy of which can be found on MoDOT’s website. This agreement shall be initiated by the prospective bidder and submitted to the Commission. A bid will not be opened and read unless a fully executed agreement is on file with the Commission at least seven days prior to the time set for the opening of the bids.

102.3.4 The Missouri Standard Specifications for Highway Construction, Missouri Standard Plans for Highway Construction, including all revisions of these documents, and other items referenced in the bidding documents, whether attached or not, will be considered a part of the bid. A prospective bidder will be expected to obtain the current edition of the Missouri Standard Specifications for Highway Construction and the Missouri Standard Plans for Highway Construction, including all revisions of these documents, which can be found on MoDOT’s website.

102.3.5 Bidders will be responsible for any additional fees associated with submitting bids using the BidExpress® website.

102.3.6 It will be conclusively presumed that all of the bidding documents are in the bidder’s possession and that these documents have been reviewed and used by the bidder in the preparation of any bid submitted. The effective dates of the General Provisions & Supplemental Specifications and the Supplemental Plans for Highway Construction will be specified in the contract documents. A copy of the latest version of these documents is available on MoDOT’s web site.

102.4 Interpretation of Quantities in Bid Schedule. The quantities appearing in the bid schedule are estimated only and are prepared for the comparison of bids. Payment to the contractor will be made only for the actual quantities of work performed and accepted in accordance with the contract, except where final measurements are not made, as hereinafter provided. The quantities of work to be done and material to be furnished may each be increased, decreased or omitted as hereinafter provided.

102.5 Examination of Plans, Specifications, Special Provisions and Site of Work. The engineer will provide plans and specifications to the contractor providing direction on the work required. Conditions indicated on the plans and in the bidding documents represent information available from surveys and studies. The bidder is expected to carefully examine the proposed work site and bidding documents before submitting a bid.

Submission of a bid will be considered proof that the bidder has made an examination and is satisfied with the conditions to be encountered in performing the work.

102.5.1 Other documentary information, consisting of boring logs and other factual subsurface information that does not constitute part of the contract or contract documents, will be provided with project plans that contain cross sections, or they will be available from the engineer upon the bidder’s written request. This information, used for project design and quantity estimation purposes, was not obtained to determine actual subsurface conditions, actual quantities of subsurface material or appropriate construction methods, nor shall this information be considered a representation of actual conditions to be encountered during construction.

Furnishing this information does not relieve a bidder from the responsibility of making an investigation of conditions to be encountered, including but not limited to site visits, and basing the bid on information obtained from these investigations and the professional interpretation and judgment of the bidder. The bidder shall assume the risk of error if the information is used for any purposes for which the information was not intended.

The Commission makes no representation as to the accuracy of the logs or other subsurface information, since the accuracy of this information is limited by the equipment used, the personal judgment of the persons making the investigation, and by the limited number of samples taken. Records indicate conditions encountered only at the times and the specific locations shown. Ground water observations are not routinely recorded in all boring logs. The absence of such data does not mean ground water will not be encountered. An indication of ground water constitutes no representation or warranty as to where ground water will be found, nor its volume or artesian character, during the project work. Any assumptions a bidder may make from this data is at the bidder’s risk; none are intended by the Commission.

102.5.2 Certain other documents in the Commission’s possession relating to subsurface investigations are not included in the records made available to bidders under Sec 102.5.1. These documents include correspondence and reports containing interpretations, opinions and recommendations that may or may not be factual, accurate or consistent with design decisions. Any such information that does not constitute part of the contract or contract documents is available, at a nominal cost, from the engineer upon specific, written request by the prospective bidder. The bidder is cautioned that any and all such interpretations, conclusions and recommendations are not represented or warranted to be accurate or reliable and the Commission cannot be bound by them, whether or not the Commission may appear to have “relied” on them. These subjective findings, opinions or assumptions have not been confirmed or shown to be reliable and the bidder assumes the sole risk of liability or loss if the bidder does rely on these documentary interpretations and conclusions to its detriment, delay or loss.

102.5.3 The bidder assumes all risks that may be encountered in basing the order of work, equipment or personnel determinations, time of performance, cost of performance, working days needed, item bid prices or any other element of the work, on documents that the bidder obtains from the Commission, which are not expressly warranted.

102.5.4 Unless stated specifically and expressly in the bidding documents, no project involving excavation, which may include either borrow or the disposal of excess material, is represented or warranted to be a “balanced” job or project, regardless of whether the bidding documents use terms such as “balance points” or other terms that could be interpreted to suggest balance. Whether or not such projects involving excavation contain bid items for borrow or disposal of excess material, the bidder should assume that either is possible and investigate those possibilities accordingly in determining a bid.

102.5.5 Utilities are often in the process of relocation at the time a project is bid. Regardless of what utilities are shown in the bidding documents and utility locations listed, the bidder shall contact each area utility to determine the presence and location of utility lines. The bidder shall determine and shall assume the risk as to whether utilities that are to be relocated by the utility companies have in fact been relocated and if not, when the utility company anticipates the relocation shall be completed. The bidder shall independently determine the reliability of the information received from the utility companies and shall make the determination as to the sequence and timing of utility relocations in determining a bid.

102.5.6 The bidder and contractor have an affirmative duty to inquire and obtain from the National Oceanic and Atmospheric Administration (NOAA), National Climatic Data Center (NCDC), from the USACE and any other cognizant government agency, historic weather and water stage information which the bidder may consider important as guides for bidding and scheduling the work. Some of that information may be contained among the bidding documents solely as a convenience and is not warranted nor represented to any degree to be complete and accurate historic data. No warranty or representation whatsoever is made or intended by the Commission of future weather conditions during the project. Water stages and depths of water at any place or at any time within the area of the project are acknowledged to be beyond control of the Commission and dependent upon future weather conditions and actions by other governmental bodies, such as the government of the USA or third parties. The Commission makes no representation that other governmental bodies or third parties will not take action during the period of the contract or any extended time of contract performance, which will affect water stages or depths. Bidders are put on notice that the bidder’s operations may be affected by water flows, siltation and other causes over which it is acknowledged the Commission has no control.

102.6 Sales and Use Taxes. The Commission will issue a sales tax exemption certificate as described in Section

144.062 RSMo to contractors for the Commission. The tax exemption will apply to the prime contractor, any subcontractors, or suppliers for materials and supplies incorporated or consumed during the construction of the Commission project.

102.7 Preparation of Bidding Documents

102.7.1 Bids shall be submitted using the BidExpress® website. Each bidder shall specify in the bid, in figures, a unit price for each of the separate items listed.