Attachment K - Design Revision 02.pdf

PWD Norfolk, Facilities Engineering and Acquisition Division Page 1 of 2

Design Revision 02 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 17, 2020

Design Revision Purpose

1. Revisions in response to Contractor’s Pre-Proposal Inquires after March 31, 2020.

Drawing Revisions

REPAIR LP RUNWAY DRAWINGS

The following drawings are revised as of April 14, 2020 and accompany this Design Revision:

NAVFAC Dwg. No. Title

General

12,810,438 (G-101) SITE ACCESS PLAN

Civil

12,810,462 (C-301) RUNWAY CROSS SECTIONS

12,810,463 (C-302) RUNWAY CROSS SECTIONS

On NAVFAC Drawing No. 12,810,436 (G-001)

GENERAL ABBREVIATIONS: Add “VDOT – VIRGINIA DEPARTMENT OF TRANSPORTATION” to the abbreviations list.

On NAVFAC Drawing No. 12,810,441 (G-401)

GENERAL SHEET NOTES: Add note #9 to read “CRUSH CONCRETE THAT HAS BEEN REMOVED FROM AIRFIELD (E.G REMOVED CONCRETE PAVEMENT, REMOVED CONCRETE STRUCUTRES, ETC.) SO THAT THE GRADATION CONFORMS TO VDOT 21A STONE. REMOVE AND PROPERLY DISPOSE OF FOREIGN MATERIALS SUCH AS TRASH, WOOD, PAPER, AND PLASTIC FROM CONCRETE PRIOR TO CRUSHING. REFER TO THE VDOT ROAD AND BRIDGE SPECIFICATIONS, LATEST EDITION, FOR GRADATION DETAILS. CRUSHED MATERIAL IS INTENDED TO

SUPPLY SUBBASE MIXES FOR FUTURE GOVERNMENT PROJECTS.

Specification Revisions

PROJECT TABLE OF CONTENTS

Section 32 05 33, LANDSCAPE ESTABLISHMENT is added to the Project Table of Contents and accompanies this design revision.

PWD Norfolk, Facilities Engineering and Acquisition Division Page 2 of 2

DIVISION 01 – GENERAL REQUIREMENTS

SECTION 01 50 00 TEMPORARY CONSTRUCTION FACILITIES AND CONTROLS

3.4.6 COMMERCIAL VEHICLES IN/OUT OF AIRFIELD

Add sentence at end of paragraph to read “Contractor may also provide a gateman to supervise traffic during periods of frequent entry/exit of construction vehicles. If a gateman is used, coordinate with the Airfield Manager via the Contracting Officer and provide personnel name and cellular telephone number for maintaining contact with the Airfield Manager or Air Operations Duty Officer. The Airfield Manager reserves the right to direct changes to security measures or gateman personnel as deemed necessary for Airfield security.”

REPAIR LP AREA RUNWAY 10-28 1607816

SECTION 32 05 33

LANDSCAPE ESTABLISHMENT

08/17

PART 1 GENERAL

1.1 RELATED REQUIREMENTS

Section 32 92 19 SEEDING applies to this section for installation of seed requirements, with additions and modifications herein.

PART 2 PRODUCTS

Not Used.

PART 3 EXECUTION

3.1 EXTENT OF WORK

Provide landscape construction maintenance to include mowing for all newly installed landscape areas. Contractor is not responsible for mowing existing areas that remain unchanged during the construction process.

3.2 GROUNDCOVER ESTABLISHMENT

Groundcover establishment will commence on the date that inspection by the Contracting Officer shows that the new turf furnished under this contract has been satisfactorily installed to a 95 percent stand of coverage.

3.2.1 Frequency of Maintenance

Begin maintenance immediately after turf has been installed. Inspect areas once a week during the installation and establishment period and perform needed maintenance promptly.

3.2.2 Promotion of Growth

Maintain groundcover in a manner that promotes proper health, growth, natural color. Turf must have a neat uniform manicured appearance, free of bare areas, ruts, holes, weeds, pests, dead vegetation, debris, and unwanted vegetation that present an unsightly appearance. Mow and remove excess clippings to promote growth, as approved by Contracting Officer.

3.2.3 Mowing

3.2.3.1 Turf

Mow turf at a uniform finished height. Mow new turf areas to a minimum average height of 4 inches. The height of turf is measured from the soil. Perform mowing of turf in a manner that prevents scalping, rutting, bruising, uneven and rough cutting. Prior to mowing, all rubbish, debris, trash, leaves, rocks, paper, and limbs or branches on a turf area must be picked up and disposed. Adjacent paved areas must be swept/vacuumed clean.

3.2.4 Turf Watering

Perform irrigation in a manner that promotes the health, growth, color and

SECTION 32 05 33 Page 1

REPAIR LP AREA RUNWAY 10-28 1607816

appearance of cultivated vegetation and that complies with all Federal, State, and local water agencies and authorities directives. The Contractor must be responsible to prevent over watering, water run-off, erosion, and ponding due to excessive quantities or rate of application.

Abide by state, local or other water conservation regulations or restrictions in force during the establishment period.

3.2.5 Final Inspection and Acceptance

Final inspection will be made upon written request from the Contractor at least 10 days prior to the last day of the turf establishment period.

Final turf acceptance will be based upon a satisfactory stand of turf.

Final acceptance of grass areas will be based upon a stand of 95 percent groundcover of established species.

3.2.6 Unsatisfactory Work

When work is found to not meet design intent and specifications, maintenance period will be extended at no additional cost to the Government until work has been completed, inspected and accepted by Contracting Officer.

-- End of Section --

SECTION 32 05 33 Page 2