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Current Design Manual
List items for Design Manual
1A - Introduction
1B - General
- 1B-1 Glossary and Abbreviations
- 1B-2 Contact Information
- 1B-4 Densities for Use in Estimating Quantities
- 1B-5 Pipe Thickness Table
- 1B-6 Project Cost Estimates
- 1B-7 Managing Changes in Project Concepts
1C - Standards and Design Criteria
1D - Plan Development
- 1D-1 Project Flow Chart
- 1D-3 Preliminary Survey Procedure
- 1D-4 Pavement Determination Process
- 1D-7 Interchange Review
- 1D-8 Access Review Submittal
- 1D-9 Field Examination Checklist (New and Reconstructed Highways)
- 1D-10 Field Examination Checklist (3R and 4R Projects)
- 1D-14 Lighting Warrants Request
- 1D-15 Design Public Meeting Displays
- 1D-20 Reviewing Railroad Crossings at Side Roads
- 1D-21 Flood Debris Removal Plans
1E - Plan Preparation
- 1E-1 Certification of Plans
- 1E-3 Plan Revisions
- 1E-4 Road Design Details
- 1E-5 Standard Road Plans
- 1E-6 Designer Information for Standard Road Plans
- 1E-7 Designer Information for Road Design Details
- 1E-8 Plan Submittals for County Review
- 1E-9 Standard Notes
1F - Plan Sheets
- 1F-1 Plan Sheets – General Information
- 1F-2 A Sheets
- 1F-3 B Sheets
- 1F-4 C Sheets
- 1F-4.5 CS Sheets
- 1F-5 D Sheets
- 1F-6 E Sheets
- 1F-7 F Sheets
- 1F-8 G Sheets
- 1F-9 H Sheets and HE Sheets
- 1F-10 J Sheets
- 1F-11 K Sheets
- 1F-12 L Sheets
- 1F-13 M Sheets
- 1F-13.5 MIT Sheets
- 1F-14 N Sheets
- 1F-15 P Sheets
- 1F-16 Q Sheets
- 1F-16.1 QR Sheets
- 1F-17 R Sheets
- 1F-18 S Sheets
- 1F-19 SPS Sheets
- 1F-20 T Sheets
- 1F-21 U Sheets
- 1F-22 V Sheets
- 1F-23 W, X, and Y Sheets
- 1F-24 Z Sheets
1G - Bid Item Information
- 1G-1 Bid Item Determination and Quantity Estimation
- 1G-4 Bidding Mobilizations for Watering
- 1G-5 Bidding Mobilizations for Erosion Control
- 1G-6 Salvaged Materials
- 1G-7 Monitoring with Incident Response
- 1G-8 Items Left in Place between Projects
- 1G-10 Bidding Alternate Items
- 1G-11 Railroad Insurance
- 1G-14 Pavement Incentive/Disincentive (I/D) Bid Items
1H - Final Plan Preparations
2A - Horizontal Alignment
2B - Superelevation
2C - Vertical Alignment
3A - Roadways
3C - Shoulders and Curbs
- 3C-2 Curbs
- 3C-3 Shoulder Cross Slope
- 3C-3.5 Shoulder Design Changes
- 3C-4 Shoulder Design
- 3C-5 Shoulder and Centerline Rumble Strips
- 3C-6 Safety Edge
- 3C-7 Shoulder Design for New and Existing Bridge Staging
- 3C-10 Earth Shoulder Construction and Earth Shoulder Finishing
3D - Subgrade and Subbase
- 3D-1 Subgrade Slopes
- 3D-2 Grading on Multi-Year Four Lane Divided Roadway Projects
- 3D-3 Pavement Drainage and Strength Layers
3E - Medians
3F - Foreslopes
- 3F-2 Foreslopes at Drainage Structures
- 3F-3 Transverse Slope Adjustment at Entrances and Safety Ramps
3G - Ditches
3J - Berms and Benches
3K - Access Points
4A - Urban Drainage Design
- 4A-1 Introduction to Stormwater Drainage System Design
- 4A-2 Stormwater Drainage System Information Sources, Documentation, and Permitting
- 4A-3 Effects of Roadway Geometrics On Pavement Drainage
- 4A-4 Concept Plan
- 4A-5 Using the Rational Method to Determine Peak Flow
- 4A-6 Calculating Spread and Checking Intake Location
- 4A-7 Open-throat Curb Intakes
- 4A-8 Barrier Grate Intakes
- 4A-10 Storm Sewer Design
- 4A-11 Cost Estimates and City Agreements
- 4A-12 Removing or Abandoning Storm or Sanitary Sewer
- 4A-13 Removing Intakes or Manholes
4B - Rural Drainage Design
- 4B-1 Determining Entrance and Safety Ramp Pipe Culvert Lengths
- 4B-2 Livestock Passes
- 4B-3 Removing or Abandoning Culverts
4C - Miscellaneous
5A - Earthwork Design Overview
5B - Earthwork Excavation Procedures
5C - Earthwork Quantities Calculations
5D - Earthwork Deliverables for Plan Turn-in
6A – Geometric Design of Intersections
- 6A-1 Horizontal Intersection Design: Rural Two-Lane
- 6A-2 Intersection Design Vehicle
- 6A-3 Modern Roundabouts – General Guidance
- 6A-7 Rumble Strips at Intersections
- 6A-8 Intersection Alignment (Rural Primary Highways)
- 6A-9 Edge Profiles
- 6A-10 Intersection Edge of Traveled Way Design (Edge Returns)
- 6A-11 Stop Sign Islands
6B – Geometric Design of Interchanges
- 6B-1 Cross Sections of One and Two Lane Ramps and Loops
- 6B-2 County Roads through Interchanges
- 6B-3 County Roads over Primary Highways
- 6B-6 Accesses and Safety Dikes at Ramp/Loop Terminals
6C – Geometric Design of Lanes
- 6C-1 Adding, Dropping, or Redirecting Through Lanes
- 6C-2 Super-2 Highways
- 6C-5 Four-Lane Expressway Turn Lanes
- 6C-6 Continuous Two-Way Left-Turn Lanes (TWLTLs)
- 6C-8 Parking on Urban Highways
6D – Sight Distance
7A – Portland Cement Concrete
- 7A-2 Jointing Guidelines
- 7A-3 Jointing Rural Intersections
- 7A-4 Jointing Urban Intersections
- 7A-5 Jointing Cul-de-Sacs
- 7A-6 Jointing Ramp and Loop Terminals
7C – Granular Surfaces
7D – Other
8A – Introduction
- 8A-1 Introduction to Roadside Safety
- 8A-2 Clear Zones
- 8A-3 Treatment Options for Objects within the Clear Zone
- 8A-4 Warrants for Specific Objects
- 8A-5 Roadside Safety Hardware Assessment
- 8A-6 Zone of Intrusion
- 8A-7 Introduction to MASH Crash Testing
- 8A-8 Evaluating Roadside Safety Hardware
8B – Treatments
- 8B-2 Culvert Opening Safety Treatments
- 8B-5 Choosing a Barrier
- 8B-6 Locating a Barrier
- 8B-10 Tabulating Guardrail
8C – Barrier Design
9A – Principles
- 9A-1 Fundamental Principles of Traffic Control in Work Zones
- 9A-2 Traffic Control Zones
- 9A-3 Tapers
- 9A-4 Regulatory Speed Limit Changes
- 9A-5 Traffic Control Plans
9B – Traffic Control Devices
- 9B-1 Basic Requirements of Traffic Control Devices
- 9B-2 Signs
- 9B-3 Channelizing Devices
- 9B-4 Raised Pavement Markers and Delineators
- 9B-5 Warning Lights
- 9B-6 Floodlights
- 9B-7 Arrow Displays
- 9B-8 Changeable Message Signs
- 9B-9 Temporary Barrier Rail
- 9B-10 Road Closures
- 9B-11 Speed Feedback Trailer Signs
9C – Work Zone Applications
- 9C-1 Introduction to Work Zone Activities
- 9C-2 Work Located Off the Traveled Way
- 9C-3 Work on Two-Lane Roadways
- 9C-4 Work on Multi-Lane Roadways
- 9C-5 Control of Traffic through Incident Areas
- 9C-6 On-Site Detours and Temporary Connections
- 9C-7 Haul Road Crossings
9D – Pavement Markings
9E – Traffic Control
9F – Traffic Control in Work Zones
10A – Topsoil
10B – Seeding, Fertilizing, and Mulching
10C – Erosion Control
- 10C-1 Temporary Sediment Control Devices
- 10C-2 Storm Water Detention
- 10C-3 Vegetated Buffers
- 10C-4 Temporary Sediment Control Devices for Intakes and Manholes
- 10C-5 Temporary Sediment Control in Urban Areas
- 10C-6 Creating the Erosion Control Features DSN File
10D – Storm Water Discharge Permits for Maintenance Projects
10E – Fencing
12A – Pedestrian Facilities
- 12A-1 General Sidewalk Requirements
- 12A-2 Accessible Sidewalk Requirements
- 12A-3 Protruding Objects
- 12A-4 Pedestrian Facilities During Construction
- 12A-5 Pedestrian Safety Measures and Crossings
12B – Bicycle Facilities
- 12B-1 Selecting Bicycle Facilities
- 12B-2 Shared Use Path Design
- 12B-3 On-Street Bicycle Facilities
- 12B-10 Pedestrian Path Guidelines: Safety Rail
12C – Detailed Design Criteria
20A – Starting a New Project - General
20B – Folders and Files
- 20B-41 Project Directory Folder Structure
- 20B-44 Project Directory Design Folder Structure
- 20B-45 File Naming CCRRRPPPGGG Notation
- 20B-51 Folder and Files, Photo and Survey
- 20B-71 Electronic Files Supplied by the Design Bureau
- 20B-72 Engineering Content to Review in Digital Deliverables
- 20B-73 Methods for Reviewing Digital Deliverables Content
- 20B-75 Office of Location and Environment File Exchange
- 20B-81 Project Directory Letting Folder Structure
20D – GEOPAK Setup and General Information
20J – Project Bid Items & Quantities (PSS)
21C – MicroStation
21F – DOT ProjectWise System
- 21F-1 NonDOT User Access to Iowa DOT ProjectWise System
- 21F-10 ProjectWise Basics
- 21F-21 Exporting and Importing Documents from ProjectWise
- 21F-22 ProjectWise Hyperlinks
- 21F-23 ProjectWise Email Attachments
- 21F-24 ProjectWise Replacing Documents
- 21F-25 Reference Scanning CADD Files in ProjectWise
21M – Miscellaneous Topics
40B – Surface Topography Data Collection
- 40B-1 Feature Codes – Full Descriptions
- 40B-2 Feature Codes – Titles Only
- 40B-3 Feature Codes – Categories
- 40B-4 Feature Codes – Modifications
- 40B-5 Full and Partial DTM Surveys
- 40B-7 Bridge Data Collection
- 40B-8 Culvert Data Collection
- 40B-9 Storm Sewer Intakes and Manhole Data Collection
- 40B-10 Feature Codes for Roadway Survey
- 40B-11 Feature Codes for Entrance and Intersection Survey
- 40B-12 Feature Codes for Curb & Gutter Survey
40D – MicroStation and GEOPAK Survey Mapping Process
- 40D-1 Folder Structure and File Naming
- 40D-2 Survey Preferences
- 40D-3 Loading Datasets
- 40D-4 Editing Survey Data
- 40D-5 Checking for Crossing Chains
- 40D-6 Creating Horizontal Alignments
- 40D-7 Processing Datasets in Models and Zones
- 40D-8 Build DTM from Elements
- 40D-9 Build DTM from Survey Data
- 40D-10 Editing the DTM
- 40D-11 Drawing Contours
- 40D-12 Using Design and Computation (D&C) Manager
- 40D-13 Drawing Horizontal Alignments
- 40D-14 Station and Offset Reports
- 40D-15 Completing the G Sheet
- 40D-16 GEOPAK Survey TOPO Model Links
- 40D-17 How to Use the Survey Information
120A – Specifications Documents
200A – Overview of Geotechnical Design
200B – S Events
200C – Surface Investigation Methods
200D – Laboratory Testing
200E – Engineering Properties of Soil and Rock
200F – Analysis, Design, and Treatment
- 200F-1 Slope Stability
- 200F-2 Embankments
- 200F-3 Mechanically Stabilized Earth (MSE) Wall Evaluations
- 200F-4 Driven Pile Design
- 200F-5 Drilled Shaft Design
- 200F-6 Intermediate Foundation Improvements (IFIs)
- 200F-7 Prefabricated Vertical Wick Drains (PVDs)
- 200F-8 Rock Cut Slopes
- 200F-9 Geosynthetic Design
- 200F-10 Landslide Analysis and Mitigation
- 200F-11 Soil Cut Slopes
200G – Construction Involvement
200H – Emergency Relief Projects
200I – Appendix A – Consultant Geotechnical Work Requirements
Design Manual Index
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Archive
List items for Design Manual Archive
1A - Introduction
1B - General
4A - Urban Drainage Design
- 4A-50 - Introduction to Geopak Drainage
- 4A-51 - Creating a Survey Report
- 4A-52 - Starting a GEOPAK Drainage Project
- 4A-53 - GEOPAK Drainage-Structures
- 4A-54 - GEOPAK Drainage Area
- 4A-55 - Geopak Drainage – Pipes
- 4A-56 - Geopak Drainage – Networks
- 4A-57 - Geopak Drainage – Pipe Profiles
- 4A-58 - Geopak Drainage – Drainage Reports
20A - Starting a New Project - General
20B - Folders and Files
- 20B-1 - Design Seed File Listing
- 20B-44 - Project Directory Design Folder Structure - PDF
- 20B-71 - Electronic Files Supplied by the Office of Design - PDF
20D - GEOPAK Setup and General Information
20F - Modeling & Geopak Cross-Sections
20H - Geopak 3D and Machine Control Grading
21A - D & C Manager Tools
- 21A-1 - CPN Data Instructions; Model, Data, and Attachment
- 21A-5 - InfoSnap – Quick Info
- 21A-6 - Open Explorer to Working Directory
- 21A-7 - Remove Empty Text Strings
- 21A-8 - Sink/Restore Dialogs
- 21A-11 - VBA Tool Box, Horizontal
- 21A-12 - VBA Tool Box, Vertical
- 21A-21 - Cell Clipper
- 21A-22 - Copy, Rotate, and Scale Tool
- 21A-23 - Measure Horizontal Distance
- 21A-24 - Measure Slope Distance
- 21A-25 - Move Element(s) From Level to Level
- 21A-26 - Rotate (Active Elements)
- 21A-27 - Text, Change Size
- 21A-36 - Create Backup File on “C” Drive
- 21A-37 - Level Match
- 21A-38 - Turn Selected Levels On/Off
- 21A-39 - Ref-Map
- 21A-40 - Create New Models
- 21A-41 - Model Export and Import
- 21A-42 - Model Rename
- 21A-43 - Save Model to the Alt File
- 21A-44 - Model Search
- 21A-45 - Raster Replace Drive Letter with Server Name
- 21A-46 - Ref File Level Lock
- 21A-48 - Reference Display, On-Off
- 21A-49 - Reference List
- 21A-50 - Reference Attach
- 21A-51 - Reference Detach
- 21A-52 - Legend and Symbol Information Sheets
- 21A-53 - Text Labeler
- 21A-80 - Batch Print Shape Placement
- 21A-81 - Border Send to Back and Copy Print Border
- 21A-150 - Color Changer
- 21A-151 - Multi Scale Creator
- 21A-201 - COGO Alignments, Plan View
- 21A-202 - COGO Profiles, Alignments
- 21A-203 - COGO Profiles, Entrance
- 21A-204 - COGO Ditch Grade Placement Tool
- 21A-206 - InDGN Lines
- 21A-503 - Existing Utility Legend
- 21A-600 - Soils Borrow Quantity Text Box
- 21A-800 - The D&C Compute Mode
21B - Geopak
- 21B-2 - Motif and Layout Builder Programs for P&P Sheeting
- 21B-3 - P & P Sheet - DBG Guide Cells
- 21B-4 - P & P Geopak Sheeting Instruction
- 21B-5 - P & P Sheeting Library Development
- 21B-6 - P & P Port Shape Parameters
- 21B-7 - P & P Sheeting Port Names, Levels, Colors
- 21B-20 - Roadway Cross-Section Sheet Composition
- 21B-22 - Granular Blanket Cross-Section Line-Work
- 21B-23 - Drawing Utility Symbols with GEOPAK Ancillary Features
- 21B-58 - Geopak Tables
- 21B-65 - Geopak Project Manager
- 21B-68 - Superelevation – Automated
- 21B-155 - Typical Component Tool
- 21B-156 - Geopak TIN to XML Conversion
- 21B-157 - DTM Draw Surfaces
- 21B-158 - Surface Clipping
- 21B-159 - Creating Profiles from Survey Shots
- 21B-200 - Corridor Modeler
- 21B-224 - Corridor Modeler Templates and Components
- 21B-250 - Draw Cross Sections from Surfaces
- 21B-270 - Developing 3D Models for Design Projects
- 21B-280 - Corridor Modeler Labeler
- 21B-290 - Drive Roadway-Corridor Modeler
- 21B-300 - Draping Raster Images
21C - MicroStation
- 21C-33 - PDF Scroll, Creating & Plotting
- 21C-53 - Hyperlinks in Microstation
- 21C-54 - CopySeed Program
- 21C-55 - View Groups vs Models
- 21C-56 - Attach a Multipage PDF to a MicroStation File
- 21C-70 - Creating a KMZ File from MicroStation Line Work