Transcription of HIGHWAY DESIGN MANUAL Chapter 7
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HIGHWAY DESIGN MANUAL Chapter 7
HIGHWAY DESIGN MANUAL Chapter 7 Resurfacing, Restoration, and rehabilitation (1R, 2R and 3R) Revision 98 (Limited Revision) September 16, 2021 Issued by Engineering Bulletin 21-045 Effective with DESIGN Approval on or after Jan. 1, 2022 RESURFACING, RESTORATION, AND rehabilitation 7-1 EB 21-045 01/01/2022 Section Changes Exhibit 7-8 Note 3 was edited to change the minimum wide curb lane width ( , shared lane width) from 12 ft. to 13 ft. This ensures consistency with HDM Ch 2, which sets the minimum shared lane width at 13 ft. Exhibit 7-10 Ramp Critical DESIGN Elements Based on "Standards of the Day": separate values provided for left shoulder width with 2 lanes in one direction and for 3 lanes in one direction Section New section added on Potential 2R and 3R Efficiencies.
Sep 16, 2021 · maintenance, corrective maintenance or all types of rehabilitation pavement treatments (including rubblizing and cracking and seating). More extensive pavement treatments .e., (i reconstruction) may qualify as part of a 2R or 3R project if: • It does not include the construction of new highway segments
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