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-1307 - Footnotes for Freeway Design Standards

La. Admin. Code tit. 70 § I-1307

Download
PDF
Current through Register Vol. 50, No. 9, September 20, 2024
Section I-1307 - Footnotes for Freeway Design Standards
A. Footnote for F-3 Classification. These guidelines may be used in urban areas.
B. Footnote for Item 2, F-3 Classification. Level of Service C can be used in urban areas.
C. Footnote for Item 2, F-1 and F-2 Classifications. Level of Service D can be used in heavily developed urban areas.
D. Footnote for Item 5(a). Four feet to be paved, 10 feet to be paved on 6 lane facilities, 12 feet to be paved on 6 lane facilities with truck DDHV greater than 250.
E. Footnote for Item 5(b). Twelve feet paved when truck DDHV is greater than 250.
F. Footnote for Item 7(b). For larger medians two barriers may be required. The maximum offset of 15 feet from barrier to edge of travel lane shall not be exceeded.
G. Footnote for Item 12. In Districts 04 and 05, where ice is more frequent, superelevation should not exceed 8 percent from the emax = 10% table.
H. Footnote for Item 13. 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.
I. Footnote for Item 14. Grades 1 percent higher may be used in urban areas.
J. Footnote for Item 15. An additional 6 inches should be added for additional future surfacing. Seventeen feet is required for trusses and pedestrian overpasses.
K. Footnote for Item 16(a), F-3 Classification. As needed for urban projects: 300 feet to 330 feet for rural projects depending on median width.
L. Footnote for Item 16(c). Twenty-five feet shall generally be provided in accordance with EDSM II.1.1.1.
M. Footnote for Item 17. LRFD for bridge design.
N. 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-1307

Promulgated by the Department of Transportation and Development, Office of Highways/Engineering, LR 30:807 (April 2004), repromulgated LR 30:2333 (October 2004), amended LR 35:2842 (December 2009).
AUTHORITY NOTE: Promulgated in accordance with R.S. 48:35(C).