HomeMy WebLinkAbout19980260 Ver 4_InspectionReport_34839.3.GV7_10-01-2019_20191009North Carolina Department of Transportation OF NORTH CgRO`�
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Erosion & Sedimentation / Stormwater Report
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Project Information
Inspection Date: 10/01/2019 Evaluator: Phil Suggs
Project #: 34839.3.GV7 TIP #: U-2579 D,E,F Contract #: C204088
Division #: 9
County: Forsyth
Project Type: Contract Engineer: Winston-Salem District (2)
Project Length: 7.00 Disturbed Acres: 100
River Basin: Yadkin HQW Zone: NO Trout Zone: NO
Location Winston Salem Northern Beltway University to New Walkertown Rd, Forsyth co
Description:
Proiect Evaluation
Report Type: ❑✓ Routine
❑ ICA
❑ ICA Ex 1st
❑ ICA Ex 2nd ❑CICA - SWO
❑ PCN
❑ ECPAR
Installation
Maintenance
Effectiveness Plan Overall Project
Length Section
of BMPs
of BMPs
of BMPs Implementation Evaluation
7.0 The Entire Project
8
8
8 8 8
Grading Scale: 0 - 6 = Immediate Corrective Action Required, 7 = Fair, 8 =
Good, 9 = Very Good, 10 = Excellent
Remarks and Recommendations:
This report is to lift the ICA status on the project.
Project has been reviewed with DEMLR and DWR as part of the follow up after the sediment loss and ICA
report.
Contractor has had crews cleaning up accumulated sediment in down stream areas of Sites 5, 6 and 8. Minor
additonal sediment removal directed by DWR accomplished today.
Work has started raising the fill height at Site 5. Additional temp silt ditches installed as well. Per onsite
discussions, maintain large, well compacted berms on both ends of the fill slopes over top of the culvert.
These shouild be red -lined on the EC plans. Maintain well compacted temp silt ditch berms directing storm
water runoff to the skimmer basins and stabilize fill slopes with permanent ground cover asap. Utilize temp
ground cover on upland areas and large slopes to help reduce scour and sediment load in the bottom.
At Site 6, skimmer basin 10.9 F has been enlarged and constructed as a two tier basin. Close off the sides of
the basin berms to prevent storm water from running around it at the perimeter of the site. Slope drains were
extended into the basins. Maintain a well compacted berm along the top of fill and direct storm water into the
skimmer basins.
At both Sites 5 and 6, culvert inlets and outlets have been stabilized.
Site 8, use geotextile and rip rap to stabilize the remaining erodible slopes around the headwall - there should
be no erodible areas left around the headwall. Remove slope drain from the pipe inlet area and redirect it to
behind silt checks. Per onsite discussions, this slope drain may be rerouted or removed.
Overall offsite clean up is satisfactory and work can resume on all other areas - contractor needs to keep focus
on raising fill height on site 5 area.
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