Mon and Tuesday were perfect this week with highs in the 50's and blue sky then rain on Wed, tornados with rain on Thurs and freezing temps with drizzle on Friday - just a normal winter week in the South.
We were able to get a little something done on clinic job despite the weather this week.
Area 1 grubbed and stripped of topsoil and the wall staked out. Side note - we filled up a 30 yard with roots and tree debris from area 1 the kid left.
Hooded grate inlet basin set with 18" RCP and headwall installed. The wall contractor will build the segmented wall in front of the inlet and around the 18" RCP. We had to install first as there is no way to install this HGIB after a segmented wall with grid and stone is constructed.
The new segmented wall ends at the orange stake to the right of the 279. The wall will meet the cross tie wall at that point and that small portion of tie wall will be demo'd for the new parking lot.
The segmented wall will be approx. 2' in front of HGI structure. Plans actually called for 9' of 18" pipe. RCP comes in 8' links so laying an 8' joint then 1' piece is not feasible. Since we had to order 16' of pipe to make 9', we just installed the entire 16' and will backfill with all the excess topsoil we stripped. This is a natural area so it didn't matter where the head wall was place as long as the water runs downhill.
The remaining part of the first wall in Area 1. Our scope included cutting the wall back for the grid length embedment and stockpiling the dirt. The cut back was 9' at the longest lengths of grid so the entire wall is cut 9' from face of wall.
Ordered CL 1 rip rap which is melon size rocks but we got CL 1 to CL 3 which goes up to wheel barrow sized rocks and fines. Quarry was running low so we got what we could get which was the clean up of the old CL 1 thru 3 piles. This will be used as scour protection at the two headwalls so it's no big deal. 50 TN's total, 2 loads.