Attachment I - 1607816 Design Revision 01.pdf
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- Solicitation number
- N40085-20-R-0044
About this file
This document contains design revision notes and drawings for a federal construction contract to repair a runway and support instrument landing system installation at Naval Station Norfolk. The work includes asphalt and concrete pavement maintenance and repairs, runway markings, demolition of paved islands, partial reconstruction of the runway, support for ILS installation through demolition and installation of antenna foundations and equipment, airfield signage electrical improvements, and incidental related work. Revisions provide clarification on concrete storage areas, protection of airfield lights during construction, adjusting demolition notes, and specifications for light fixture protection and manhole construction. The opportunity was solicited under solicitation number N40085-20-R-0044 by the Department of the Navy NAVFAC for a construction start of June 2020 through December 2020 at Chambers Field at Naval Station Norfolk.
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PWD Norfolk, Facilities Engineering and Acquisition Division Page 1 of 2
Design Revision 01 eProjects Work Order Number: 1607816 / 1614532
Construction Contract Number: N40085-20-R-0044
Building: Chambers Field @ Naval Station, Norfolk
Project Title: Repair LP Area Runway and ILS Installation Support
Date: April 8, 2020
Design Revision Purpose
1. Revisions in response to Contractor’s Pre-Proposal Inquires received through March 31, 2020.
Drawing Revisions
On NAVFAC Drawing No. 12,810,441 (G-401)
CONCRETE STORAGE YARD PLAN: Revise callout describing existing surface of concrete storage yard area to read
“GRASS”.
On NAVFAC Drawing No. 12,810,448 (C-001)
AIRFIELD LIGHT FIXTURE NOTES: Revise note #2 to read “PROTEXT EX APPROACH LIGHTS, RUNWAY AND TAXIWAY EDGE LIGHTS DURING CONSTRUCTION. WHERE SURROUNDING ASPHALT GRADES ARE MAINTAINED, TERMINATE MILLING/OVERLAY AT EXISTING APRON, PATCH, OR 12”-24” OUTSIDE OF LIGHT BASE EDGE, SAWCUTTING WITH SQUARE CORNERS TO PROVIDE A CLEAN AND NEAT MILLING EDGE. WHERE
SURROUNDING ASPHALT GRADES ARE ADJUSTED, USE HAND WORK METHODS WITHIN A 12”-24” PROXIMITY OF LIGHT BASE OR USE LIGHT FIXTURE PROTECTION METHOD NOTED ON SHEET C-505. FOR USE OF ALTERNATE METHODS, SUBMIT REQUEST TO CONTRACTING OFFICER FOR REVIEW AND APPROVAL. IF NEEDED, REMOVE LIGHT FIXTURES FROM BASE CANS AND PROVIDE PLYWOOD COVERS AND MUDPLATES DURING REPAVING
OPERATIONS.”.
On NAVFAC Drawing No. 12,810,450 (CD101)
DEMOLITION KEYNOTES: Revise note #8 to read “CUT AND REMOVE TOP OF EX EMH-4 CONCRETE MANHOLE AS NEEDED SO RIM CAN BE LOWERED TO MEET PROPOSED ELEVATION. DE-ENERGIZE AND DEWATER MANHOLE AS NEEDED TO PERFORM WORK. FOR BIDDING PURPOSES, ASSUME INSIDE DIMENSIONS OF MANHOLE ARE 7’Hx7’Wx7’D, WITH 8”-10” THICK WALLS, AND STRUCTURE IS HALF FULL OF WATER. EX RIM ELEV=11.90, PROP
RIM ELEV=10.99.”.
On NAVFAC Drawing No. 12,810,450 (CD101)
DEMOLITION KEYNOTES: Revise note #11 to read “REFER TO GUIDANCE SIGN REPLACEMENT DRAWINGS FOR
AIRFIELD SIGNAGE WORK CONSISTING OF AIRFIELD SIGN, REMOVAL, REPLACEMENT, ETC.”.
On NAVFAC Drawing No. 12,810,451 (CD102)
DEMOLITION KEYNOTES: Revise note #11 to read “REFER TO GUIDANCE SIGN REPLACEMENT DRAWINGS FOR
AIRFIELD SIGNAGE WORK CONSISTING OF AIRFIELD SIGN, REMOVAL, REPLACEMENT, ETC.”.
PWD Norfolk, Facilities Engineering and Acquisition Division Page 2 of 2
On NAVFAC Drawing No. 12,810,452 (CD103)
DEMOLITION KEYNOTES: Revise note #11 to read “REFER TO GUIDANCE SIGN REPLACEMENT DRAWINGS FOR
AIRFIELD SIGNAGE WORK CONSISTING OF AIRFIELD SIGN, REMOVAL, REPLACEMENT, ETC.”.
On NAVFAC Drawing No. 12,810,453 (CS101)
NEW WORK KEYNOTES: Revise note #17 to read “PROVIDE NEW MANHOLE TOP AND RESET FRAME AND COVER SO THE COVER IS FLUSH WITH GRADE. NEW MANHOLE TOP SHALL BE AN 8” THICK CONCRETE SLAB WITH #4 BARS @ 12” ON CENTER EACH WAY. REINFORCING SHALL BE SET IN MIDDLE OF NEW SLAB. ADDITIONAL (2) #4 BARS SHALL BE PROVIDED AROUND MANHOLE OPENING IN EACH 90 DEGREE ANGLE – TOTAL OF EIGHT BARS AROUND OPENING. TOP SLAB SHALL BE EPOXY DOWELED INTO EXISTING CONCRETE WALLS WITH #4
DOWELS @ 12” ON CENTER.”
On NAVFAC Drawing No. 12,810,471 (C-505)
LIGHT FIXTURE PROTECTION NOTES: Revise note #10 to read “PROVIDE #3/8 HEX HEAD CERAMIC-METALLIC FLUOROPOLYMER COATED GRADE 2 BOLTS AND SS LOCKING WASHERS OF THE TWO-PIECE WEDGE-LOCK DESIGN. WHEN INSTALLED, BOLT THREADS SHALL EXTEND INTO EXITING LIGHT BASE ½” MINIMUM BELOW
THE FLANGE.”.
ILS INSTALLATION SUPPORT DRAWINGS
On NAVFAC Drawing No. 12,811,433 (CD101)
EXISTING CONDITIONS AND DEMOLITION PLAN: Add note in plan “RECORDS SHOW EXISTING PAVEMENT AS 11” PORTLAND CEMENT CONCRETE OVER 11” CRACKED AND SEATED CONCRETE IN THE NORTH AREA DELTA
TAXIWAY”.
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