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EFLHD Supplement 9.6.8.4.3-1
Purpose: This supplement instructs the designer on the addition of contingencies to the Class A construction cost estimates.
Approved: 4/11/2019
Pages: 1
CFLHD Supplement 1.1.6-1
Purpose: The purpose of this supplement is to describe the methodology for issuing CFLHD Supplements to the PDDM.
Approved: 8/23/2007
Pages: 4
Documents:
CFL Supplement Template
CFL Transmittal Memorandum
CFLHD Supplement 4.4.1-1
Purpose: This supplement provides guidance for using the AASHTO Guidelines for Geometric Design of Very Low-Volume Local Roads (ADT ¤400)
Approved: 11/21/2008
Pages: 1
CFLHD Supplement 11.4.2-1
Purpose: This supplement describes guidelines on the use of the catalog method for aggregate surfacing thickness design.
Approved: 10/18/2010
Pages: 5
CFLHD Supplement 8.1-1
Purpose: This supplement provides guidance for safety-related design procedures at CFLHD.
Approved: 10/18/2010
Pages: 1
Resources: CFLHD Guidelines for Safety-Related Design Procedures (only available within FLH)
CFLHD Supplement 7.1.3.1-1
Purpose: The purpose of this supplement is to provide additional guidance on the assessment of existing cross-drainage structures.
Approved: 10/18/2010
Pages: 1