HomeMy WebLinkAboutConstruction Observation Report 3-23-17 Construction Progress (2)RH2 ENGINEERING, INC.
CONSTRUCTION OBSERVATION REPORT
DATE: Thursday, March 23, 2017
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CLIENT: City of Renton
PROJECT: Highlands Generator Replacement and Radio Equipment Relocation
ENGINEER: RH2 Engineering
CONTRACTOR: Colvico
FOREMAN: Ethan Giles
CREW SIZE EQUIPMENT ON SITE
(4) Contractors
(1) Excavator
WORK IN PROGRESS:
Digging of trench between HH-1 and HH-3. Installation of conduit in trench to HH-5 and HH-1.
WORK COMPLETED:
Conduits installed (between radio room or BPS and edge of road or generator pad and between elevated reservoir
and HH-1):
Installation of HH-5 and HH-1.
Fuel tank and generator pads poured.
Conduits installed and stubbed-up at generator and fuel tank pads.
Conduits installed inside BPS building.
Interior wall is framed inside radio room and existing piping is rerouted.
DISCREPIENCES NOTED:
None
DISCUSSIONS WITH CONTRACTOR:
1. Colvico proposed an alternative approach to mounting the conduits to the reservoir support and ladder
than what was submitted and shown on the plans. The approach is to install unistrut across the top of the
ladder brackets next to the tank support instead of hanging conduits on a bracket on the side of the ladder
brackets. Colvico said that this would be a no cost change but would allow for less interference with the
ladder access and more support for the conduits. RH2 requested that Colvico formally submit their
proposed design as part of an RFI.
2. Colvico suggested eliminating the retaining wall around the load bank as in their opinion there is enough
space to install the load bank without having to affect the slope. Also, the slope is somewhat small
compared to the slope next to the generator shelter. RH2 stated that the required load bank clearances for
ventilation purposes may require the retaining wall to be installed to cut back the slope. Also, Colvico
suggested maybe installing the retaining wall along the entire slope from the generator to the load bank
for consistency and aesthetics as the slope is steeper in the area around the generator. Colvico was going
to check the clearance requirements for the load bank ventilation and prepare an RFI.
RH2 ENGINEERING, INC.
CONSTRUCTION OBSERVATION REPORT
DATE: Thursday, March 23, 2017
PAGE 2 OF 2
3. Colvico requested confirmation that the use of EMT conduit was acceptable in the radio room for the
lighting, receptacle, and HVAC circuits. The specifications allow for EMT to be used for lighting type
circuits indoors, so RH2 agreed that EMT is allowed for these circuits.
ITEMS FOR OFFICE ACTION:
CAUSE FOR DISPUTE, CHANGE ORDERS, OR DELAYS:
EXTRA WORK IN PROGRESS, EQUIPMENT, AND MATERIALS:
OBSERVATIONS BY: Chris Roberts TIME AT SITE: 11:00 AM – 12:00 PM
WEATHER: Overcast TEMPERATURE: 51 deg F