HomeMy WebLinkAboutSUB201500165 Review Comments Road Plan and Comps. 2015-11-13ROAD PLAN -
1. Inlet computations —Please confirm Tspread column values; only one listed value.
2. Although Davenport and WSA Capacity and Traffic Impact Studies are provided, please list ADT used to
prepare C-1 Road Classification (pavement depth) table.
3. C-1 —Total disturbed area =20.37. Revise, consistent with VSMP plan set.
Profile —STORM DRAIN
4. Provide end sections (ES -1) or endwalls (EW -1) on all pipe outlets. Endwalls for culverts 48" or taller.
5. Show safety slab (SL -1), schematically in any structure taller than 12'.
6. Provide VDOT designation (MH -1, DI -313, etc.) label for each structure.
7. Provide Note for Manholes in FILL [storm drain, at Min.; recommend for All utilities —see VDOT 2007 Road
& Bridjze Specification 303.04 (ref. Attached June 12, 2014 VDOT comment, item #12 / unrelated project) ]
12. There should be a noted added to the storm sewer profiles indicating that "Contractor shall place fi I I under
inlet(s) at 95% compaction & embardmie t material shaLl consist pteduminantly of soil & be placed in
successive uniform layers not more than 8" in thicitnm befbre compactions in accordance w VDOT 2007
Road &: $ridge Specification 303.04. After 3' vertical placement of fill, ciantrac tor shai I excavate recently
laid fill and insl$1l compacted VDOT std, 2 L A stone in an Vx8 ` o. c. compacted Z 1 arca centered On the
inlet(s). CBtttractor shall repeat this operation until an 9*x9' a. c. compacted 2 1 sione base to Installed
between the existing groused and the proposed inLei(s) base in efinrts to reduce the Fisk of sell Iirtg.
Cotttractor AaII provide VDOT w; fill compaction MM its prior 10 road acceptaare."
8. Provide additional detail, retaining wall (RW). A complete geotechnical sealed design is required prior to
RP approval. RW is integral to roadway. Intend to provide more complete detail with formal comments;
but: plan/profile; geogrid specs; foundation/backfill specs; assumptions; testing; TW/BW Elev., etc.
9. Transfer sheet C-6 to VSMP plan set.
10. C-1 —Remove Part II C technical criteria Note. This Title sheet statement requires clarification provided in
12 -Nov County email.
11. C-3 —Label Str. #42 pipe outfall riprap dimensions (L X W X D). —see Str. #28, C-313.
12. C -3B —Revise Drainage Str. summary table to show junction box for box culvert -to -pipe culvert
connections [Str. #20 & 40]. (discussed 11 -Nov)
13. Also: recommend plan/profile Typ. detail for one or both structures to illustrate box -to -pipe connections.
14. C-313 —Provide additional proposed contour labels near retaining wall.
15. C-4 —Label southern entrance pavement width/s. Label FC -FC, or EP -EP.
16. C -4A —Label radius, entrance road exit, the rightmost right -turn lane.
17. C-7 —Label `End Construction' station, Entrance road profile.
18. C -7A —Str. 9, 11: MH tops appear below grade. Please check.