Road Design Manual

999 Pages·2016·34.51 MB·English

M
ONTANA
R D M
OAD ESIGN ANUAL

PREFACE
The Montana Road Design Manual has been developed to provide uniform design
practices for Department and consultant personnel preparing contract plans for
Department projects. The roadway designer should attempt to meet all criteria presented
in the Manual. However, the Manual should not be considered a "standard" which must be
met regardless of impacts.
The Manual presents most of the information normally required in the design of a
roadway project; however, it is impossible to address every situation which the road
designer will encounter. Therefore, designers must exercise good judgment on individual
projects and, frequently, they must be innovative in their approach to roadway design.
This may require, for example, additional research into the highway literature.
The Montana Road Design Manual was developed by the MDT Road Design
Section with assistance from the engineering consulting firm of Roy Jorgensen Associates,
Inc. The Manual Review Committee consisted of:
Dave Johnson Montana Department of Transportation
Ron Williams Montana Department of Transportation
Paul Ferry (Project Coordinator) Montana Department of Transportation
Brian Vieth Montana Department of Transportation
Kerry Robertson Montana Department of Transportation
Jay Ramlo Montana Department of Transportation
Ken Shearin Roy Jorgensen Associates, Inc.
Craig Birkholz Roy Jorgensen Associates, Inc.

i
ROAD DESIGN MANUAL
(Revision Process)
All revisions to the Montana Road Design Manual will be submitted and reviewed
according to the following process:
Revision and Review
1. All proposed revisions should be submitted to the Road Design Engineer. The
Revision Request Form (next page) should be used for the submittal.
2. A four-person Review Committee, selected by the Road Design Engineer, will meet
every three months, or as necessary, to review the proposed changes.
3. The Committee will submit their recommendations and will meet with the Road
Design Engineer and the Preconstruction Engineer to determine if the proposed
revisions should be incorporated into the Manual.
4. If the revisions represent a policy change, the revisions will be presented to the
District Engineers for comment.
5. If the Manual will be revised as recommended, a memo describing the revision will
be distributed by the Road Design Engineer. The revised pages of the Manual will
be attached to the memo and will be sent to all Manual holders.
Review Committee
The Review Committee will consist of four members. One member will be replaced each
year; therefore, no one will serve on the Committee for more than four consecutive years.
Individuals may serve on the Committee more than once.
In addition to the review of proposed revisions, the Committee will be responsible for the
following:
1. providing all updates for the Road Design Manual,
2. maintaining a comprehensive list of all Manual holders, and
3. maintaining a library of all revisions to the Manual in chronological order.

ii
ROAD DESIGN MANUAL
(Revision Request)
Identification
Date Submitted:
Section To Be Revised:
Section Title:
Page Number(s):
Description of Revision
List other sections of the Manual that would be affected by the revision:
A.
B.
C.
List the MDT Detailed Drawings that would be affected by the revision:
A.
B.
C.
Justification For The Revision

iii
Table of Contents
MONTANA ROAD DESIGN MANUAL
Chapter One........................................................................... ROAD DESIGN PROCESS
Chapter Two .................................................................ROAD DESIGN COORDINATION
Chapter Three ................................. ADMINISTRATIVE POLICIES AND PROCEDURES
Chapter Four ................................................................................. PLAN PREPARATION
Chapter Five ............................................................................. QUANTITY SUMMARIES
Chapter Six ................................................. SPECIFICATIONS/SPECIAL PROVISIONS/
DETAILED DRAWINGS
Chapter Seven ..................................................... CONSTRUCTION COST ESTIMATES
Chapter Eight ...................................................................... BASIC DESIGN CONTROLS
Chapter Nine ........................................................................ HORIZONTAL ALIGNMENT
Chapter Ten ............................................................................... VERTICAL ALIGNMENT
Chapter Eleven ................................................................ CROSS SECTION ELEMENTS
Chapter Twelve ....................................... TABLES OF GEOMETRIC DESIGN CRITERIA
Chapter Thirteen ............................................................... INTERSECTIONS AT-GRADE
Chapter Fourteen ............................................................................. ROADSIDE SAFETY
Chapter Fifteen ................................ MAINTENANCE AND PROTECTION OF TRAFFIC
THROUGH CONSTRUCTION ZONES
Chapter Sixteen ............................................................................................. RESERVED
Chapter Seventeen ............................................ DRAINAGE AND IRRIGATION DESIGN
Chapter Eighteen ............................................................ SPECIAL DESIGN ELEMENTS
Chapter Nineteen ........................................................................................... RESERVED
Chapter Twenty .................................. COORDINATION WITH OTHER PUBLICATIONS
Chapter Twenty-One .......................................................................... GLOSSARY/INDEX

iv
18 October 2016
MONTANA DEPARTMENT OF
TRANSPORTATION

ROAD DESIGN MANUAL

Chapter One
ROAD DESIGN PROCESS

December 2000 ROAD DESIGN PROCESS 1(iii)

Table of Contents

Section Activity Title Page

1.1 FLOWCHARTS ..................................................................................... 1(1)
1.2 ENGINEERING MANAGEMENT PROCESS ........................................ 1(3)
1.3 ROAD DESIGN ACTIVITIES ................................................................. 1(4)