Quantities To Be Used Only For Computations of Dry Rip Rap For Outlet Protection. Rev. 7/10

The VDOT standard class of riprap with the next higher D50 should be specified. Correction Factor For Stability Factor (SF) other than 1.2 (Default = 1.0)

2016 ROAD and BRIDGE SPECIFICATIONS Updated: MARCH 2020 — (Division III) —Saved: 02/21/2020 1:30 PM GUIDELINES —Use when requested by the Designer (Not for use in …

Chapter 7 – Ditches and Channels Appendix 7D-3 Standard VDOT Riprap Classifications, Weights, and Blanket Thickness . Classification . D 50 (ft)

Type I: Core riprap shall be composed of compact angular pieces of derrick stone weighing from 3/4 ton to 2 tons each with an average weight of approximately 1 ton. Approximately 10 …

dry riprap class with st'd pc-1 accordance cover in timber 12" x 12" reference specification virginia department of transportation 1' temporary vehicular watercourse crossing shall be in …

Note: All VDOT standard riprap (Class AI through Type II) is assumed to have a ( of approximately 42o and a Specific Gravity of 2.65. Therefore, the Computed D50 should be …

product application chart w VDOT NUMBER Rail Ballast 351 B slurry C slurry B-sand Washed 21A 21B 25-26 Gabion* Rip Rap* PRODUCT NUMBER 17/18 AdvantaSand 25-26 40-43 …

The Road and Bridge Specifications allow Riprap that is primarily placed by the dumped method to be measured by Square Yards or Tons.

filter cloth bedding meeting vdot spec. L* = LENGTH OF RIPRAP TO BE AT LEAST 4D. SMALL ROCK RIPRAP SHALL BE COMPOSED OF A MIXTURE OR BLEND OF 3"-5" STONE OR …

Class II Rip Rap. VDOT Certified. Applications: Control erosion, drainage structures, and sediment control. Size: 150 lbs – 500 lbs

The chart comes from the Virginia Erosion & Sediment Control Handbook which has more info on outlet protection and some examples. See chapter 3.18. Chapter 3.19 also has more info …

For those locations that show a maximum spread width of “1/2 Driving Lane Width + Gutter width (If Any)”, the table assumes that the driving lane is adjacent to the curb/curb and gutter section.

Appendix 7D-3 Standard VDOT Riprap Classifications, Weights, and Blanket Thickness. Classification D50 (ft) W50 (lbs) T (in) Class AI 0.8 50 20 Class I 1.1 100 26 Class II 1.6 300 38 …

Riprap bedding shall be crushed stone, minimum Grade B. Porous backfill shall be aggregate size No. 78 or No. 8, a minimum Grade B. Crushed glass meeting the gradation requirements …

Maximum density of freshly mixed lightweight concrete, when tested according to ASTM C138, shall be 120 lbs/ft3, or as specified on the Plans. Subbase material may consist of any mixture …

This item shall consist of providing grouted riprap lined ditches as shown in the Drawings. Channel Lining shall be VDOT Class I Riprap as specified in Section 414 of the VDOT Road …

Chapter 7 – Ditches and Channels Appendix 7E-6 Riprap Size Relationship . Source: HEC-11 . 1 of 1 VDOT Drainage Manual