Highway Design Library

Geometric Design

PDDM FHWA (2005) The FLH Project Development and Design Manual.	Park Road Standards National Park Service, 1984 Design standards for use on Park road projects. Note: Substitute the current Green Book for any table referencing "A Policy on Geometric Design of Highways and Streets, AASHTO, 1984".
CADD Tips and Tricks Information about the Computer Aided Design and Drafting (CADD) software used by FLH	Separated Bike Lane Planning and Design Guide FHWA, 2015 The Guide outlines planning considerations and design options for separated bike lanes.
Design Visualization Guide This document introduces visualization tools and innovative visualization practices
FWS Roadway Design Guidelines US Fish and Wildlife Service (FWS), 2012 Highlights state of the art ecological, planning, design and engineering considerations for roadway projects located within FWS managed lands	Trail Maintenance and Construction Notebook US Forest Service, FS-1262, February 2025 A practical reference for trail maintenance and construction

Writing Specifications

Specification Writers' Guide For Federal Lands Highway
FHWA, December 2024
The Specification Writers' Guide is intended for writers that develop specifications for the Federal Highway Administration's Federal Lands Highway Program.

Development and Review of Specifications
FHWA, March 2010
This technical advisory was developed for the FHWA division office staff for use in interacting with State specifications. However the document also contains best practices and recommendations useful for developing and writing clear, concise, correct, complete, and consistent specifications. (See the attachments beginning on page 23.)

Signs and Markings

MUTCD
FHWA, 2023
The current Manual on Uniform Traffic Control Devices.

An image of a cover for a standard highway signs book.

Standard Highway Signs
FHWA, 2004-2024
The current Standard Highway Signs manual.

DOD Supplement to the MUTCD
Department of Defense, 2015
Supplements to the MUTCD for use on military bases.

An image of someone standing beside a sign.

NPS Signs

Information about National Park Service signs.

Safety

An image of a Summer Guide pamphlet cover.

Barrier Guide for Low Volume and Low Speed Roads
FLH, 2005
This Guide is intended to provide assistance in the warranting, selection, and design of roadside barriers. The Guide is prepared specifically for warranting, selecting, and designing barriers on Federal Lands Highways projects that are low volume and/or low speed facilities. The guidelines present practical and useful guidance for common conditions and situations encountered in the design of roadside barriers for Federal Lands Highway projects.

AASHTO Task Force 13
Task Force 13 develops, recommends, and promotes standards and specifications for bridge and road hardware used by highway and transportation agencies on the nation's roadways. Site contains links to publications describing current roadside hardware.

Rumble Strip Guidelines: For Shoulder and Centerline Applications
FHWA, 2015
Provides FLH guidance for when and where to install rumble strips.

FHWA Safety Program

View additional Safety links

Environment

FHWA Environment Resources Links to environmental resources at FHWA.	Environmental Review Toolkit Links to FHWA and other U.S. Department of Transportation (DOT) policies, procedures, and guidance related to the environment and transportation.
Roadside Revegetation: An Integrated Approach to Establishing Native Plants FHWA, 2007 This report offers an integrated approach to facilitate the successful establishment of native plants along roadsides and other areas of disturbance associated with road modifications.	Roadside Use of Native Plants FHWA, 1999 Listing of native plants by state.

Last updated: Thursday, September 10, 2026

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