HomeMy WebLinkAboutWPO201800068 Correspondence 2021-02-09David James
From: Alexander Morrison<amorrison @serviceauthority.org>
Sent: Tuesday, February 9, 2021 11:40 AM
To: David James
Subject: RE: WP0201800068 ACSA Operations Center Expansion Parking Lot Expansion - VSMP,
SWIM Bond Inspection
Attachments: IMG_2706jpg; Trashl.jpg; ACSA_Storm_Names.pdf
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David,
Sorry this took longer than expected to get back to you. I have added my comments in RED.
1. Install trash rack & cleanout any debris at bottom orifice. Refer to detail on sheet C5.3.
provide photos once done. See attached picture. Debris cleaned out and "trash rack"
installed on upstream side of orifice.
2. Remove leaves & debris that appear to be clogging grate inlet STM 30. ovide photos
ji,uu uu„m See attached picture. Grate was removed and debris was removed from
structure.
3. Pipe video & reports:
a. I could not identify the pipe runs based on the naming (i.e. Storm 1, Storm 2, etc.).
See attached plan excerpt with storm lines labeled for corresponding CCTV. It
appears that some manhole number were reversed in the GraniteNet software,
but the Storm line numbers are accurate.
b. Pipes were reported to be 30", 36" & 15" height. Are these accurate measures of
the pipe diameters? 30" diameter pipes are not on the as-builts.
Sizes have been verified and match approved plan and as -built
plan. Sizes noted on Storm naming sheet as well. Our CCTV operator inputted
assumed sizes from CCTV and that is the discrepancy. He did not enter the
confined space to measure during CCTV. He is also use to conducting CCTV on
8"42" sanitary sewer and does not normally see 36" and 42" pipe.
Let me know if there is anything else needed to close out tis project and release the bond.
AlexanderJ. Morrison, P.E.
Senior Civil Engineer
Albemarle County Service Authority
168 Spotnap Road
Charlottesville, Virginia 22911
(0) 434-977-4511 Ext. 116
(C) 434-981-5577 Primary Phone Contact
(F) 434-979-0698
Water
COVID NOTICE: The ACSA Administration Office is currently closed to the public.
From: David James <djames2@albemarle.org>
Sent: Thursday, January 28, 2021 1:02 PM
To: Alexander Morrison <amorrison@serviceauthority.org>
Subject: WP0201800068 ACSA Operations Center Expansion Parking Lot Expansion - VSMP, SWM Bond Inspection
The Review for the following application has been completed:
Application Number= WP0201800068
Reviewer = David James
Review Status = Pending
Completed Date = 01/27/2021
Alex
I performed an inspection recently on Jan. 22. See report of items needed below. Once those items
are completed I can release the bond.
1. Install trash rack & cleanout any debris at bottom orifice. Refer to detail on sheet C5.3.
2. Remove leaves & debris that appear to be clogging grate inlet STM 30.
3. Pipe video & reports:
a. I could not identify the pipe runs based on the naming (i.e. Storm 1, Storm 2, etc.).
b. Pipes were reported to be 30", 36" & 15" height. Are these accurate measures of
the pipe diameters? 30" diameter pipes are not on the as-builts.
check/venfy s1zt.
Let me know if you have any questions.
Thanks,
David James
,aernarle
434-296-5832:3273
2