Statutes, codes, and regulations
Louisiana Administrative Code
Title 70 - TRANSPORTATION AND DEVELOPMENTPart I - Highway Construction
Chapter 13 - Design Guidelines for Freeways, Arterial, Collector, and Local Highways under the Jurisdiction of Political Subdivisions and Not in the State-Maintained System
Section I-1319 - Footnotes for Suburban Arterial Design Guidelines

La. Admin. Code tit. 70 § I-1319

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Current through Register Vol. 50, No. 11, November 20, 2024
Section I-1319 - Footnotes for Suburban Arterial Design Guidelines
A. Footnote for SA-1 and SA-2 Classifications. These guidelines may be used only on a rural roadway section that adjoins a roadway section currently classified as urban. The classification selected should be based on the posted speed.
B. Footnote for Item 5. If curb is used, it shall be placed at the edge of shoulder on two lane facilities and 1 foot beyond the edge of the shoulders on multilane facilities. However, see EDSM II.2.1.7. Curb will not be placed in front of guardrail.
C. Footnote for Item 9. Sidewalks must be separated from the shoulder and should be placed as near the right of way line as possible. They should desirably be placed outside the minimum clear zone shown in item 18.
D. Footnote for Item 15. It may be necessary to increase the radius of the curve and/or increase the shoulder width (maximum of 12 feet) to provide adequate stopping sight distance on structure.
E. Footnote for Item 15. Different radii apply at divisional islands. See Footnote G for "Minimum Design Guidelines for Urban Arterial Roads and Streets."
F. Footnote for Item 16, SA-1 Classification. Grades 1 percent higher are permissible in rolling terrain.
G. Footnote for Item 17. An additional 6 inches should be added for additional future surfacing.
H. Footnote for Item 18(a), SA-1 Classification. Use the larger value when 1:4 fore slopes are used.
I. Footnote for Item 19. LRFD for bridge design.
J. Footnote for Item 20. For roadways with shoulders and curbs, consider widening each bridge 8 feet to allow for a future lane and 4 foot offsets to bridge rail.
K. General Note. DOTD pavement preservation minimum design guidelines or 3R minimum design guidelines (separate sheets) shall be applicable to those projects for which the primary purpose is to improve the riding surface.

La. Admin. Code tit. 70, § I-1319

Promulgated by the Department of Transportation and Development, Office of Highways/ Engineering, LR 30:811 (April 2004), repromulgated LR 30:2337 (October 2004), amended LR 35:2846 (December 2009).
AUTHORITY NOTE: Promulgated in accordance with R.S. 48:35(C).