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General

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Legacy ID
16

HDS Memo

Rev: 18-May-2020

Use this memo instead of the Highway Design Standards Form for the following project types:

Preventative MaintenanceSpot Improvements less than 500 feet in lengthNon-roadway work only

Fill in the Project, select the appropriate Designer from the drop-down menu, and...

Standard Format for Plans (CFL)

CFLHD Supplement 9.6.5-1 Purpose: This supplement describes the standard format for project plans created within and for CFLHD. Approved: 08/23/2007 Pages: 3 References: CFLHD Templates and Sample Plan Sheets ORD User Manual

Design Review Procedures

CFLHD Supplement 9.6.4-1 Purpose: This supplement describes the procedures for submitting a project package of plans, specifications, and cost estimate (PS&E package) for review at project milestones listed in the project specific Project Management Plan. Approved: 11/21/2008...

Local Roads

CFLHD Supplement 9.3.1.2.1-1 Purpose: This supplement describes the process for selecting to use the AASHTO Guidelines for Geometric Design of Very Low-Volume Local Roads (ADT = 400). Approved: 11/21/2008 Pages: 1

Documenting Design Exceptions (CFL)

CFLHD Supplement 9.1.3.4-1 Purpose: This supplement provides guidance in documenting exceptions to Highway Design Standards within CFLHD using the Highway Design Standards form. Approved: 11/21/2008 Pages: 8 References: Mitigation Strategies for Design Exceptions - FHWA-SA-23...

Data Exchange Standards

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The following information supplements PDDM Section 9.6.6.4

Data Exchange Standards

There are numerous software products used in construction. These may have proprietary design formats not...

Level of Detail

The following information supplements PDDM Section 9.6.1.

Digital Design Data

Develop highway design surveys and road designs using Bentley GEOPAK and/or(?) Open Roads software. Provide design data in native MicroStation file formats...

Earthwork Design

The following information supplements PDDM Section 9.5.1.

While roadway excavation is not classified for measurement or payment purposes, it may be categorized for computation of earthwork design and mass purposes as the following types:

  1. ...

Design Procedures Guide

The Design Procedures Guide provides basic guidance, recommended procedures, and instructions for developing and documenting the highway design. This includes fundamental steps for developing the geometric design and preparation of plans, specifications and estimates (PS&E...