_RFP_Specifications_Volume_3of3_.pdf

P-8A AIRFIELD AND

LIGHTING REPAIRS

AT

NAS JACKSONVILLE, FL

SPECIFICATIONS

(VOLUME 3 OF 3)

FINAL SUBMITTAL

FEBRUARY 28, 2014

DESIGN BID BUILD PROJECT SPECIFICATIONS

PREPARED BY:

Naval Facilities Engineering Command, Southeast

P.O. Box 30, NAS Jacksonville, Florida 32212-0030

E PROJECT #: ________

FOR COMMANDER NAVFAC SE – BLTL: ____________________________________

PROJECT MANAGER: ____________________________________

TECHNICAL BRANCH HEAD: ____________________________________

Discipline Prepared By: Reviewed By:

Architectural: ________________________ ________________________

Structural: _________________________ ________________________

Mechanical: _________________________ ________________________

Electrical: _________________________ ________________________

Civil: _________________________ ________________________ jeffrey.w.frank Text Box

PLC:

P-8A AIRFIELD AND LIGHTING REPAIRS JAXAIRFIELD

Volume 3 - Pavement Technical Specifications

PROJECT TABLE OF CONTENTS

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

00 01 15 LIST OF DRAWINGS

DIVISION 02 - EXISTING CONDITIONS

02 41 00 DEMOLITION

DIVISION 31 - EARTHWORK

31 00 00 EARTHWORK

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 01 11.51 RUBBER AND PAINT REMOVAL FROM AIRFIELD PAVEMENTS

32 01 16.17 COLD MILLING OF BITUMINOUS PAVEMENTS

32 01 17.16 SEALING OF CRACKS IN BITUMINOUS PAVEMENTS

32 01 19 FIELD MOLDED SEALANTS FOR SEALING JOINTS IN RIGID

PAVEMENTS

32 11 16 BASE COURSE FOR RIGID PAVING

32 11 20 GRADED AGGREGATE BASE

32 11 24 GRADED CRUSHED AGGREGATE BASE COURSE FOR FLEXIBLE PAVEMENT

32 12 10 BITUMINOUS TACK AND PRIME COATS

32 12 15.13 HOT-MIX ASPHALT AIRFIELD PAVING

32 12 16 HOT-MIX ASPHALT (HMA) FOR ROADS

32 13 11 CONCRETE PAVEMENT FOR AIRFIELDS AND OTHER HEAVY-DUTY

PAVEMENTS

32 17 23.00 20 PAVEMENT MARKINGS

32 31 13.53 HIGH-SECURITY CHAIN LINK FENCES AND GATES

32 92 19 SEEDING

32 92 23 SODDING

DIVISION 33 - UTILITIES

33 40 00 STORM DRAINAGE UTILITIES

-- End of Project Table of Contents --

PROJECT TABLE OF CONTENTS Page 1

07MAR14

SECTION TABLE OF CONTENTS

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

DOCUMENT 00 01 15

LIST OF DRAWINGS

02/11

PART 1 GENERAL

1.1 SUMMARY

1.2 CONTRACT DRAWINGS

-- End of Section Table of Contents --

DOCUMENT 00 01 15 Page 2

DOCUMENT 00 01 15

LIST OF DRAWINGS

02/11

PART 1 GENERAL

1.1 SUMMARY

This section lists the drawings for the project pursuant to contract clause "DFARS 252.236-7001, Contract Drawings, Maps and Specifications."

1.2 CONTRACT DRAWINGS

Contract drawings are as follows:

P-8A AIRFIELD AND LIGHTING REPAIRS - VOLUME 2

SHEET

No.

SHEET

ID

NAVFAC

DWG. No.

SHEET TITLE

1 T100 15072732 TITLE SHEET

2 T101 15072733 INDEX OF DRAWINGS

3 T102 15072734 INDEX OF DRAWINGS (CONT.)

4 T103 15072735 GENERAL NOTES & LEGEND

5 T104 15085302 AIRFIELD PAVEMENT FUNDING ALLOCATION PLAN

6 PH100 15072736 PHASING PLAN - PHASE 1 OF 3

7 PH101 15072737 PHASING PLAN - PHASE 2 OF 3

8 PH102 15072738 PHASING PLAN - PHASE 3 OF 3

9 C100 15072739 EXISTING CONDITIONS & DEMOLITION PLAN RUNWAY 10 STATION 0+00 TO 12+50

10 C101 15072740 EXISTING CONDITIONS & DEMOLITION PLAN RUNWAY 10 STATION 12+50 TO 26+00

11 C102 15072741 EXISTING CONDITIONS & DEMOLITION PLAN RUNWAY 10 STATION 26+00 TO 40+00

12 C103 15072742 EXISTING CONDITIONS & DEMOLITION PLAN RUNWAY 10 STATION 40+00 TO 52+00

13 C104 15072743 EXISTING CONDITIONS & DEMOLITION PLAN RUNWAY 10 STATION 52+00 TO 64+00

14 C105 15072744 EXISTING CONDITIONS & DEMOLITION PLAN RUNWAY 10 STATION 64+00 TO 72+00

15 C106 15072745 EXISTING CONDITIONS & DEMOLITION PLAN RUNWAY 10 STATION 72+00 TO 80+00

16 C200 15072746 GEOMETRY PLAN - RUNWAY 10 STATION 0+00 TO 12+50

17 C201 15072747 GEOMETRY PLAN - RUNWAY 10 STATION 12+50 TO 26+00

18 C202 15072748 GEOMETRY PLAN - RUNWAY 10 STATION 26+00 TO 40+00

19 C203 15072749 GEOMETRY PLAN - RUNWAY 10 STATION 40+00 TO 52+00

20 C204 15072750 GEOMETRY PLAN - RUNWAY 10 STATION 52+00 TO 64+00

21 C205 15072751 GEOMETRY PLAN - RUNWAY 10 STATION 64+00 TO 72+00

22 C206 15072752 GEOMETRY PLAN - RUNWAY 10 STATION 72+00 TO 80+00

23 C300 15072753 GRADING PLAN - RUNWAY 10 STATION 6+00 TO 16+50

24 C301 15072754 GRADING PLAN - RUNWAY 10 STATION 16+50 TO 27+50

25 C302 15072755 GRADING PLAN - RUNWAY 10 STATION 27+50 TO 38+50

26 C303 15072756 GRADING PLAN - RUNWAY 10 STATION 38+50 TO 49+50

27 C304 15072757 GRADING PLAN - RUNWAY 10 STATION 49+50 TO 60+50

28 C305 15072758 GRADING PLAN - RUNWAY 10 STATION 60+50 TO 71+50

29 C306 15072759 GRADING PLAN - TAXIWAY 'A' STATION 10+00 TO 16+50

30 C307 15072760 GRADING PLAN - TAXIWAY 'A' STATION 16+50 TO 27+50

31 C308 15072761 GRADING PLAN - TAXIWAY 'A' STATION 27+50 TO 38+50

DOCUMENT 00 01 15 Page 3

32 C309 15072762 GRADING PLAN - TAXIWAY 'A' STATION 38+50 TO 49+50

33 C310 15072763 GRADING PLAN - TAXIWAY 'A' STATION 49+50 TO 60+50

34 C311 15072764 GRADING PLAN - TAXIWAY 'A' STATION 60+50 TO 70+00

35 C312 15072765 CENTERLINE PROFILES - RUNWAY 10 STATION 6+00 TO 16+00

36 C313 15072766 CENTERLINE PROFILES - RUNWAY 10 STATION 16+00 TO 26+00

37 C314 15072767 CENTERLINE PROFILES - RUNWAY 10 STATION 26+00 TO 36+00

38 C315 15072768 CENTERLINE PROFILES - RUNWAY 10 STATION 36+00 TO 46+00

39 C316 15072769 CENTERLINE PROFILES - RUNWAY 10 STATION 46+00 TO 56+00

40 C317 15072770 CENTERLINE PROFILES - RUNWAY 10 STATION 56+00 TO 66+00

41 C318 15072771 CENTERLINE PROFILES - RUNWAY 10 STATION 66+00 TO 71+00

42 C319 15072772 CROSS SECTIONS - RUNWAY 10 STATION 7+00 TO 9+50

43 C320 15072773 CROSS SECTIONS - RUNWAY 10 STATION 10+00 TO 11+00

44 C321 15072774 CROSS SECTIONS - RUNWAY 10 STATION 11+50 TO 12+50

45 C322 15072775 CROSS SECTIONS - RUNWAY 10 STATION 13+00 TO 14+00

46 C323 15072776 CROSS SECTIONS - RUNWAY 10 STATION 14+50 TO 15+50

47 C324 15072777 CROSS SECTIONS - RUNWAY 10 STATION 16+00 TO 18+50

48 C325 15072778 CROSS SECTIONS - RUNWAY 10 STATION 19+00 TO 21+50

49 C326 15072779 CROSS SECTIONS - RUNWAY 10 STATION 22+00 TO 24+50

50 C327 15072780 CROSS SECTIONS - RUNWAY 10 STATION 25+00 TO 27+50

51 C328 15072781 CROSS SECTIONS - RUNWAY 10 STATION 28+00 TO 30+50

52 C329 15072782 CROSS SECTIONS - RUNWAY 10 STATION 31+00 TO 33+50

53 C330 15072783 CROSS SECTIONS - RUNWAY 10 STATION 34+00 TO 36+50

54 C331 15072784 CROSS SECTIONS - RUNWAY 10 STATION 37+00 TO 39+50

55 C332 15072785 CROSS SECTIONS - RUNWAY 10 STATION 40+00 TO 42+50

56 C333 15072786 CROSS SECTIONS - RUNWAY 10 STATION 43+00 TO 45+50

57 C334 15072787 CROSS SECTIONS - RUNWAY 10 STATION 46+00 TO 48+50

58 C335 15072788 CROSS SECTIONS - RUNWAY 10 STATION 49+00 TO 51+50

59 C336 15072789 CROSS SECTIONS - RUNWAY 10 STATION 52+00 TO 54+50

60 C337 15072790 CROSS SECTIONS - RUNWAY 10 STATION 55+00 TO 57+50

61 C338 15072791 CROSS SECTIONS - RUNWAY 10 STATION 58+00 TO 59+00

62 C339 15072792 CROSS SECTIONS - RUNWAY 10 STATION 59+50 TO 60+50

63 C340 15072793 CROSS SECTIONS - RUNWAY 10 STATION 61+00 TO 62+00

64 C341 15072794 CROSS SECTIONS - RUNWAY 10 STATION 62+50 TO 65+00

65 C342 15072795 CROSS SECTIONS - RUNWAY 10 STATION 65+50 TO 68+00

66 C343 15072796 CROSS SECTIONS - RUNWAY 10 STATION 68+50 69+50

67 C344 15072797 CENTERLINE PROFILES - TAXIWAY 'A' STATION 9+50 TO 19+50

68 C345 15072798 CENTERLINE PROFILES - TAXIWAY 'A' STATION 19+50 TO 29+50

69 C346 15072799 CENTERLINE PROFILES - TAXIWAY 'A' STATION 29+50 TO 39+50

70 C347 15072800 CENTERLINE PROFILES - TAXIWAY 'A' STATION 39+50 TO 49+50

71 C348 15072801 CENTERLINE PROFILES - TAXIWAY 'A' STATION 49+50 TO 59+50

72 C349 15072802 CENTERLINE PROFILES - TAXIWAY 'A' STATION 59+50 TO 70+00

73 C350 15072803 CROSS SECTIONS - TAXIWAY 'A' STATION 10+00 TO 15+50

74 C351 15072804 CROSS SECTIONS - TAXIWAY 'A' STATION 16+00 TO 21+50

75 C352 15072805 CROSS SECTIONS - TAXIWAY 'A' STATION 22+00 TO 27+50

76 C353 15072806 CROSS SECTIONS - TAXIWAY 'A' STATION 28+00 TO 33+50

77 C354 15072807 CROSS SECTIONS - TAXIWAY 'A' STATION 34+00 TO 39+50

78 C355 15072808 CROSS SECTIONS - TAXIWAY 'A' STATION 40+00 TO 45+50

79 C356 15072809 CROSS SECTIONS - TAXIWAY 'A' STATION 46+00 TO 51+50

80 C357 15072810 CROSS SECTIONS - TAXIWAY 'A' STATION 52+00 TO 57+50

81 C358 15072811 CROSS SECTIONS - TAXIWAY 'A' STATION 58+00 TO 63+50

82 C359 15072812 CROSS SECTIONS - TAXIWAY 'A' STATION 64+00 TO 68+50

83 C360 15072813 CENTERLINE PROFILES - TAXIWAY 'A3'

84 C361 15072814 CROSS SECTIONS - TAXIWAY 'A3'

85 C362 15072815 CENTERLINE PROFILES - TAXIWAY 'C'

DOCUMENT 00 01 15 Page 4

86 C363 15072816 CROSS SECTIONS - TAXIWAY 'C' STATION 1+50 TO 4+00

87 C364 15072817 CROSS SECTIONS - TAXIWAY 'C' STATION 4+50 TO 6+50

88 C365 15072818 CENTERLINE PROFILE - TAXIWAY 'A4'

89 C366 15072819 CROSS SECTIONS - TAXIWAY 'A4'

90 C367 15072820 CENTERLINE PROFILE - TAXIWAY 'A5'

91 C368 15072821 CROSS SECTIONS - TAXIWAY 'A5'

92 C369 15072822 CENTERLINE PROFILE - TAXIWAY 'A6'

93 C370 15072823 CROSS SECTIONS - TAXIWAY 'A6'

94 C371 15072824 CENTERLINE PROFILE - TAXIWAY 'A7'

95 C372 15072825 CROSS SECTIONS - TAXIWAY 'A7'

96 C400 15072826 PAVEMENT MARKING PLAN - STATION 0+00 TO 12+50

97 C401 15072827 PAVEMENT MARKING PLAN - STATION 12+50 TO 26+00

98 C402 15072828 PAVEMENT MARKING PLAN - STATION 26+00 TO 40+00

99 C403 15072829 PAVEMENT MARKING PLAN - STATION 40+00 TO 52+00

100 C404 15072830 PAVEMENT MARKING PLAN - STATION 52+00 TO 64+00

101 C405 15072831 PAVEMENT MARKING PLAN - STATION 64+00 TO 72+00

102 C406 15072832 PAVEMENT MARKING PLAN - STATION 72+00 TO 80+00

103 C500 15072833 SECTIONS & DETAILS

104 C501 15072834 RUNWAY MARKING DETAILS

105 C502 15072835 ARRESTING GEAR PROTECTIVE PAVEMENT DETAILS 1

106 C503 15072836 ARRESTING GEAR PROTECTIVE PAVEMENT DETAILS 2

107 C504 15072837 ARRESTING GEAR PROTECTIVE PAVEMENT DETAILS 3

108 C600 15072838 PCC GENERAL NOTES & LEGEND

109 C601 15072839 HORIZONTAL CONTROL PLAN - 10 END

110 C602 15072840 EXISTING CONDITIONS & DEMOLITION PLAN - 10 END

111 C603 15072841 GEOMETRY PLAN - 10 END

112 C604 15072842 GEOMETRY PLAN - 10 END

113 C605 15072843 GEOMETRY PLAN - 10 END

114 C606 15072844 JOINT LAYOUT PLAN - 10 END

115 C607 15072845 JOINT LAYOUT PLAN - 10 END

116 C608 15072846 JOINT LAYOUT PLAN - 10 END

117 C609 15072847 JOINT LAYOUT PLAN - 10 END

118 C610 15072848 JOINT LAYOUT PLAN - 10 END

119 C611 15072849 JOINT LAYOUT PLAN - 10 END

120 C612 15072850 JOINT LAYOUT PLAN - 10 END

121 C613 15072851 GRADING PLAN - 10 END

122 C614 15072852 GRADING PLAN - 10 END

123 C615 15072853 GRADING PLAN - 10 END

124 C616 15072854 GRADING PLAN - 10 END

125 C617 15072855 GRADING PLAN - 10 END

126 C618 15072856 GRADING PLAN - 10 END

127 C619 15072857 GRADING PLAN - 10 END

128 C620 15072858 GRADING PLAN - 10 END

129 C621 15072859 RUNWAY 10 PROFILES

130 C622 15072860 TAXIWAY 'A' PROFILES

131 C623 15072861 TAXIWAY 'A2' AND 'E' PROFILES

132 C624 15072862 PAVEMENT MARKING PLAN - 10 END

133 C625 15072863 PAVEMENT MARKING PLAN - 10 END

134 C626 15072864 PAVEMENT MARKING PLAN - 10 END

135 C627 15072865 SEDIMENT & EROSION CONTROL PLAN - 10 END

136 C700 15072866 HORIZONTAL CONTROL PLAN - 28 END

137 C701 15072867 EXISTING CONDITIONS & DEMOLITION PLAN - 28 END

138 C702 15072868 GEOMETRY PLAN - 28 END

139 C703 15072869 GEOMETRY PLAN - 28 END

DOCUMENT 00 01 15 Page 5

140 C704 15072870 GEOMETRY PLAN - 28 END

141 C705 15072871 JOINT LAYOUT PLAN - 28 END

142 C706 15072872 JOINT LAYOUT PLAN - 28 END

143 C707 15072873 JOINT LAYOUT PLAN - 28 END

144 C708 15072874 JOINT LAYOUT PLAN - 28 END

145 C709 15072875 JOINT LAYOUT PLAN - 28 END

146 C710 15072876 JOINT LAYOUT PLAN - 28 END

147 C711 15072877 GRADING PLAN - 28 END

148 C712 15072878 GRADING PLAN - 28 END

149 C713 15072879 GRADING PLAN - 28 END

150 C714 15072880 GRADING PLAN - 28 END

151 C715 15072881 GRADING PLAN - 28 END

152 C716 15072882 GRADING PLAN - 28 END

153 C717 15072883 GRADING PLAN - 28 END

154 C718 15072884 GRADING PLAN - 28 END

155 C719 15072885 RUNWAY 28 PROFILES

156 C720 15072886 RUNWAY 28 PROFILES

157 C721 15072887 RUNWAY 32 PROFILES

158 C722 15085439 TAXIWAY 'A' PROFILES

159 C723 15085440 TAXIWAY 'B' PROFILES

160 C724 15085288 PAVEMENT MARKING PLAN - 28 END

161 C725 15085289 PAVEMENT MARKING PLAN - 28 END

162 C726 15085290 PAVEMENT MARKING PLAN - 28 END

163 C727 15085291 SEDIMENT & EROSION CONTROL PLAN - 28 END

164 C800 15085292 TYPICAL SECTIONS - 10 END

165 C801 15085293 TYPICAL SECTIONS & DETAILS - 10 END

166 C802 15085294 TYPICAL SECTIONS - 28 END

167 C803 15085295 TYPICAL SECTIONS & DETAILS - 28 END

168 C804 15085296 PCC JOINT DETAILS

169 C805 15085297 PCC JOINT & PAVEMENT MARKING DETAILS

170 C806 15085298 SEDIMENT & EROSION CONTROL DETAILS

171 C807 15085299 SOIL BORINGS

172 C808 15085300 SOIL BORING PROPERTIES DATA

173 C809 15085301 ASPHALT CORINGS

P-8A AIRFIELD AND LIGHTING REPAIRS - VOLUME 3

SHEET

No.

SHEET

ID

NAVFAC

DWG. No.

SHEET TITLE

1 T100 15084547 TITLE SHEET

2 G100 15084548 PCC GENERAL NOTES & LEGEND

3 G101 15084592 AIRFIELD PAVEMENT FUNDING ALLOCATION PLAN

4 C100 15084549 HORIZONTAL CONTROL PLAN

5 C200 15084550 EXISITNG CONDITIONS & DEMOLITION PLAN

6 C300 15084551 GEOMETRY PLAN - OVERALL

7 C301 15084552 GEOMETRY PLAN

8 C302 15084553 GEOMETRY PLAN

9 C303 15084554 GEOMETRY PLAN

10 C304 15084555 GEOMETRY PLAN

11 C400 15084556 JOINT LAYOUT PLAN

12 C401 15084557 JOINT LAYOUT PLAN

13 C402 15084558 JOINT LAYOUT PLAN

DOCUMENT 00 01 15 Page 6

14 C403 15084559 JOINT LAYOUT PLAN

15 C404 15084560 JOINT LAYOUT PLAN

16 C405 15084561 JOINT LAYOUT PLAN

17 C406 15084562 JOINT LAYOUT PLAN

18 C407 15084563 JOINT LAYOUT PLAN

19 C500 15084564 PAVEMENT GRADING PLAN

20 C501 15084565 PAVEMENT GRADING PLAN

21 C502 15084566 PAVEMENT GRADING PLAN

22 C503 15084567 PAVEMENT GRADING PLAN

23 C504 15084568 PAVEMENT GRADING PLAN

24 C505 15084569 PAVEMENT GRADING PLAN

25 C506 15084570 PAVEMENT GRADING PLAN

26 C507 15084571 PAVEMENT GRADING PLAN

27 C508 15084572 CENTERLINE PROFILES - RUNWAY 10 STATION (-)2+00 TO 8+00

28 C509 15084573 CENTERLINE PROFILES - RUNWAY 10 STATION 8+00 TO 15+00

29 C510 15084574 CENTERLINE PROFILES - TAXIWAY A STATION (-)1+75 TO 8+25

30 C511 15084575 CENTERLINE PROFILES - TAXIWAY A STATION 8+25 TO 11+00

31 C512 15084576 CENTERLINE PROFILES - TAXIWAY A1 STATION 0+00 TO 11+00

32 C600 15084577 SITE GRADING & DRAINAGE PLAN

33 C601 15084578 SITE GRADING & DRAINAGE PLAN

34 C602 15084579 SITE GRADING & DRAINAGE PLAN

35 C603 15084580 SITE GRADING & DRAINAGE PLAN

36 C604 15084581 SITE GRADING & DRAINAGE PLAN - LINED CHANNEL

37 C605 15084582 SITE GRADING & DRAINAGE PLAN - LINED CHANNEL

38 C700 15084583 PAVEMENT MARKING PLAN

39 C701 15084584 PAVEMENT MARKING PLAN

40 C800 15084585 SEDIMENT & EROSION CONTROL PLAN

41 C900 15084586 TYPICAL SECTIONS

42 C901 15084587 TYPICAL SECTIONS & DETAILS

43 C902 15084588 SEDIMENT & EROSION CONTROL DETAILS

44 C903 15084589 PCC JOINT DETAILS

45 C904 15084590 SOIL BORINGS PROPERTIES DATA

46 C905 15084591 SOIL BORINGS PROPERTIES DATA

47 C906 15084592 FENCE AND GATE MODIFICATION PLAN

-- End of Document --

DOCUMENT 00 01 15 Page 7

SECTION TABLE OF CONTENTS

DIVISION 02 - EXISTING CONDITIONS

SECTION 02 41 00

DEMOLITION

05/10

PART 1 GENERAL

1.1 REFERENCES

1.2 PROJECT DESCRIPTION

1.2.1 Demolition/Deconstruction Plan

1.2.2 General Requirements

1.3 ITEMS TO REMAIN IN PLACE

1.3.1 Existing Construction Limits and Protection

1.3.2 Utility Service

1.3.3 Facilities

1.4 BURNING

1.5 SUBMITTALS

1.6 QUALITY ASSURANCE

1.6.1 Dust and Debris Control

1.7 PROTECTION

1.7.1 Traffic Control Signs

1.7.2 Protection of Personnel

1.8 FOREIGN OBJECT DAMAGE (FOD)

1.9 EXISTING CONDITIONS

PART 2 PRODUCTS

2.1 FILL MATERIAL

PART 3 EXECUTION

3.1 EXISTING FACILITIES TO BE REMOVED

3.1.1 Structures

3.1.2 Utilities and Related Equipment

3.1.2.1 General Requirements

3.1.2.2 Disconnecting Existing Utilities

3.1.3 Paving and Slabs

3.1.4 Miscellaneous Metal

3.1.5 Airfield Lighting

3.2 CONCURRENT EARTH-MOVING OPERATIONS

3.3 DISPOSITION OF MATERIAL

3.3.1 Title to Materials

3.3.2 Unsalvageable and Non-Recyclable Material

3.4 CLEANUP

3.5 DISPOSAL OF REMOVED MATERIALS

3.5.1 Regulation of Removed Materials

3.5.2 Burning on Government Property

3.5.3 Removal from Government Property

-- End of Section Table of Contents --

SECTION 02 41 00 Page 8

SECTION 02 41 00

DEMOLITION

05/10

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN SOCIETY OF SAFETY ENGINEERS (ASSE/SAFE)

ASSE/SAFE A10.6 (2006) Safety Requirements for Demolition Operations

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2008; Errata 1-2010; Changes 1-3 2010;

Changes 4-6 2011; Change 7 2012) Safety and Health Requirements Manual

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

40 CFR 61 National Emission Standards for Hazardous Air Pollutants

1.2 PROJECT DESCRIPTION

1.2.1 Demolition/Deconstruction Plan

Prepare a Demolition Plan and submit proposed demolition and removal procedures for approval before work is started. Include in the plan procedures for coordination with other work in progress, a disconnection schedule of utility services, and airfield lighting, a detailed description of methods and equipment to be used for each operation and of the sequence of operations. Coordinate with Waste Management Plan. Provide procedures for safe conduct of the work in accordance with EM 385-1-1.

1.2.2 General Requirements

Do not begin demolition until authorization is received from the Contracting Officer. Remove rubbish and debris from the project site; do not allow accumulations on airfield pavements.Store materials that cannot be removed daily in areas specified by the Contracting Officer. In the interest of occupational safety and health, perform the work in accordance with EM 385-1-1, Section 23, Demolition, and other applicable Sections.

1.3 ITEMS TO REMAIN IN PLACE

Take necessary precautions to avoid damage to existing items to remain in place, to be reused, or to remain the property of the Government. Repair or replace damaged items as approved by the Contracting Officer.

Coordinate the work of this section with all other work indicated. Do not overload pavements to remain. Provide new supports and reinforcement

SECTION 02 41 00 Page 9 for existing construction weakened by demolition or removal work. Repairs, reinforcement, or structural replacement require approval by the Contracting Officer prior to performing such work.

1.3.1 Existing Construction Limits and Protection

Do not disturb existing construction beyond the extent indicated or necessary for installation of new construction. Provide protective measures to control accumulation and migration of dust and dirt in all work areas. Remove dust, dirt, and debris from work areas daily.

1.3.2 Utility Service

Maintain existing utilities indicated to stay in service and protect against damage during demolition and deconstruction operations. Prior to start of work, utilities serving each area of alteration or removal will be shut off by the Government and disconnected and sealed by the Contractor.

1.3.3 Facilities

Protect electrical and mechanical services and utilities. Where removal of existing utilities and pavement is specified or indicated, provide approved barricades, temporary covering of exposed areas, and temporary services or connections for electrical and mechanical utilities. Ensure that no elements determined to be unstable are left unsupported and place and secure bracing, shoring, or lateral supports as may be required as a result of any cutting, removal, deconstruction, or demolition work performed under this contract.

1.4 BURNING

The use of burning at the project site for the disposal of refuse and debris will not be permitted.

1.5 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00

SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Existing Conditions; G

SD-07 Certificates

Demolition Plan; G

Notification; G

SD-11 Closeout Submittals

Receipts

1.6 QUALITY ASSURANCE

Submit timely notification of demolition projects to Federal, State, regional, and local authorities in accordance with 40 CFR 61, Subpart M.

SECTION 02 41 00 Page 10

Notify the the Contracting Officer in writing 10 working days prior to the commencement of work in accordance with 40 CFR 61, Subpart M. Comply with federal, state, and local hauling and disposal regulations. In addition to the requirements of the "Contract Clauses," conform to the safety requirements contained in ASSE/SAFE A10.6. Comply with the Environmental Protection Agency requirements specified. Use of explosives will not be permitted.

1.6.1 Dust and Debris Control

Prevent the spread of dust and debris on airfield pavements to remain and avoid the creation of a nuisance or hazard in the surrounding area. Do not use water if it results in hazardous or objectionable conditions such as, but not limited to, flooding, or pollution. Sweep pavements as often as necessary to control the spread of debris that may result in foreign object damage potential to aircraft.

1.7 PROTECTION

1.7.1 Traffic Control Signs

Provide a minimum of 2 aviation red or high intensity white obstruction lights on temporary structures (including cranes) over 100 feet above ground level. Light construction and installation shall comply with FAA AC 70/7460-1. Lights shall be operational during periods of reduced visibility, darkness, and as directed by the Contracting Officer. Maintain the temporary services during the period of construction and remove only after permanent services have been installed and tested and are in operation.

1.7.2 Protection of Personnel

Before, during and after the demolition work continuously evaluate the condition of the structure being demolished and take immediate action to protect all personnel working in and around the project site. No area, section, or component of floors, roofs, walls, columns, pilasters, or other structural element will be allowed to be left standing without sufficient bracing, shoring, or lateral support to prevent collapse or failure while workmen remove debris or perform other work in the immediate area.

1.8 FOREIGN OBJECT DAMAGE (FOD)

Aircraft and aircraft engines are subject to FOD from debris and waste material lying on airfield pavements. Remove all such materials that may appear on operational aircraft pavements due to the Contractor's operations. If necessary, the Contracting Officer may require the Contractor to install a temporary barricade at the Contractor's expense to control the spread of FOD potential debris. The barricade shall include a fence covered with a fabric designed to stop the spread of debris. Anchor the fence and fabric to prevent displacement by winds or jet/prop blasts.

Remove barricade when no longer required.

1.9 EXISTING CONDITIONS

Before beginning any demolition work, survey the site and examine the drawings and specifications to determine the extent of the work. Record existing conditions in the presence of the Contracting Officer showing the condition of structures and other facilities adjacent to areas of alteration or removal. Photographs sized 4 inch will be acceptable as a

SECTION 02 41 00 Page 11 record of existing conditions. It is the Contractor's responsibility to verify and document all required outages which will be required during the course of work, and to note these outages on the record document. Submit survey results.

PART 2 PRODUCTS

2.1 FILL MATERIAL

a. Comply with excavating, backfilling, and compacting procedures for soils used as backfill material to fill voids, depressions or excavations resulting from demolition or deconstruction of structures.

PART 3 EXECUTION

3.1 EXISTING FACILITIES TO BE REMOVED

Inspect and evaluate existing structures onsite for reuse. Existing construction scheduled to be removed for reuse shall be disassembled.

Dismantled and removed materials are to be separated, set aside, and prepared as specified, and stored or delivered to a collection point for reuse, remanufacture, recycling, or other disposal, as specified.

Materials shall be designated for reuse onsite whenever possible.

3.1.1 Structures

a. Remove existing structures to be removed to the proposed grade as indicated in the plans.

b. Demolish structures in a systematic manner from the top of the structure to the ground.

d. Building, or the remaining portions thereof may be demolished by the mechanical method of demolition.

3.1.2 Utilities and Related Equipment

3.1.2.1 General Requirements

Do not interrupt existing utilities serving occupied or used facilities, except when authorized in writing by the Contracting Officer. Do not interrupt existing utilities serving facilities occupied and used by the Government except when approved in writing and then only after temporary utility services have been approved and provided. Do not begin demolition or deconstruction work until all utility disconnections have been made.

Shut off and cap utilities for future use, as indicated.

3.1.2.2 Disconnecting Existing Utilities

Remove existing utilities uncovered by work and terminate in a manner conforming to the nationally recognized code covering the specific utility and approved by the Contracting Officer. When utility lines are encountered but are not indicated on the drawings, notify the Contracting Officer prior to further work in that area. Remove meters and related equipment and deliver to a location in accordance with instructions of the Contracting Officer.

SECTION 02 41 00 Page 12

3.1.3 Paving and Slabs

Remove concrete and asphaltic concrete paving and slabs including aggregate base as indicated. Provide neat sawcuts at limits of pavement removal as indicated. Pavement and slabs designated to be recycled (crushed) and utilized in this project shall be moved, ground and stored as directed by the Contracting Officer. Pavement and slabs not to be used in this project shall be removed from the Installation at Contractor's expense.

3.1.4 Miscellaneous Metal

Salvage shop-fabricated items such as access doors and frames, steel gratings, metal ladders, wire mesh partitions, metal railings, metal windows and similar items as whole units. Salvage light-gage and cold-formed metal framing, such as steel studs, steel trusses, metal gutters, roofing and siding. Scrap metal shall become the Contractor's property. Recycle scrap metal as part of demolition. Provide separate containers to collect scrap metal and transport to a scrap metal collection or recycling facility, in accordance with the Waste Management Plan.

3.1.5 Airfield Lighting

Remove existing airfield lighting as indicated in the plans and specifications 'P-8A Lighting and Pavement Repairs-Volume 1'.

3.2 CONCURRENT EARTH-MOVING OPERATIONS

Do not begin excavation, filling, and other earth-moving operations that are sequential to demolition or deconstruction work in areas occupied by structures to be demolished or deconstructed until all demolition and deconstruction in the area has been completed and debris removed. Fill holes, open basements and other hazardous openings.

3.3 DISPOSITION OF MATERIAL

3.3.1 Title to Materials

Except for salvaged items specified in related Sections, and for materials or equipment scheduled for salvage, all materials and equipment removed and not reused or salvaged, shall become the property of the Contractor and shall be removed from Government property. Title to materials resulting from demolition and deconstruction, and materials and equipment to be removed, is vested in the Contractor upon approval by the Contracting Officer of the Contractor's demolition, deconstruction, and removal procedures, and authorization by the Contracting Officer to begin demolition and deconstruction. The Government will not be responsible for the condition or loss of, or damage to, such property after contract award. Showing for sale or selling materials and equipment on site is prohibited.

3.3.2 Unsalvageable and Non-Recyclable Material

Dispose of unsalvageable and non-recyclable combustible material off the site.

3.4 CLEANUP

Remove and transport the debris in a manner that prevents spillage on streets or adjacent areas. Apply local regulations regarding hauling and

SECTION 02 41 00 Page 13 disposal.

3.5 DISPOSAL OF REMOVED MATERIALS

3.5.1 Regulation of Removed Materials

Dispose of debris, rubbish, scrap, and other nonsalvageable materials resulting from removal operations with all applicable federal, state and local regulations as contractually specified in the Waste Management Plan.

3.5.2 Burning on Government Property

Burning of materials removed from demolished and deconstructed structures will not be permitted on Government property.

3.5.3 Removal from Government Property

Transport waste materials removed from demolished and deconstructed structures, except waste soil, from Government property for legal disposal. Dispose of waste soil as directed.

-- End of Section --

SECTION 02 41 00 Page 14

SECTION TABLE OF CONTENTS

DIVISION 31 - EARTHWORK

SECTION 31 00 00

EARTHWORK

08/08

PART 1 GENERAL

1.1 CRITERIA FOR BIDDING

1.2 REFERENCES

1.3 DEFINITIONS

1.3.1 Satisfactory Materials

1.3.2 Unsatisfactory Materials

1.3.3 Cohesionless and Cohesive Materials

1.3.4 Degree of Compaction

1.3.5 Hard/Unyielding Materials

1.3.6 Rock

1.3.7 Unstable Material

1.3.8 Initial Backfill Material

1.3.9 Expansive Soils

1.4 SYSTEM DESCRIPTION

1.4.1 Dewatering Work Plan

1.5 SUBMITTALS

PART 2 PRODUCTS

2.1 REQUIREMENTS FOR OFFSITE SOILS

PART 3 EXECUTION

3.1 STRIPPING OF TOPSOIL

3.2 GENERAL EXCAVATION

3.2.1 Ditches, Gutters, and Channel Changes

3.2.2 Drainage Structures

3.2.3 Drainage

3.2.4 Dewatering

3.2.5 Trench Excavation Requirements

3.2.5.1 Bottom Preparation

3.2.5.2 Removal of Unyielding Material

3.2.5.3 Removal of Unstable Material

3.2.5.4 Excavation for Appurtenances

3.2.6 Underground Utilities

3.3 BACKFILLING AND COMPACTION

3.3.1 Trench Backfill

3.3.1.1 Replacement of Unyielding Material

3.3.1.2 Replacement of Unstable Material

3.3.1.3 Final Backfill

3.3.2 Backfill for Appurtenances

3.4 SUBGRADE PREPARATION

3.4.1 Proof Rolling

3.4.2 Construction

3.4.3 Compaction

SECTION 31 00 00 Page 15

3.4.3.1 Subgrade for Airfield Pavements

3.5 FINISHING

3.5.1 Subgrade and Embankments

3.6 PLACING TOPSOIL

3.7 TESTING

3.7.1 Fill and Backfill Material Gradation

3.7.2 In-Place Densities

3.7.3 Check Tests on In-Place Densities

3.7.4 Moisture Contents

3.7.5 Optimum Moisture and Laboratory Maximum Density

3.7.6 Tolerance Tests for Subgrades

3.8 DISPOSITION OF SURPLUS MATERIAL

-- End of Section Table of Contents --

SECTION 31 00 00 Page 16

SECTION 31 00 00

EARTHWORK

08/08

PART 1 GENERAL

1.1 CRITERIA FOR BIDDING

Base bids on the following criteria:

a. Surface elevations are as indicated.

c. Ground water elevations indicated by the boring logs are those existing at the time subsurface investigations were made and do not necessarily represent ground water elevation at the time of construction.

e. Material character is indicated by the boring logs included in the plan sets.

f. Concrete ends 10 and 28 have a history of grout injection for slab levelling and void filling. The Contractor should anticipate encountering grout masses within portions of the existing base and subbase of these areas.

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS

(AASHTO)

AASHTO T 180 (2010) Standard Method of Test for Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and a 457-mm (18-in.) Drop

AASHTO T 224 (2010) Standard Method of Test for Correction for Coarse Particles in the Soil Compaction Test

ASTM INTERNATIONAL (ASTM)

ASTM C136 (2006) Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates

ASTM D1140 (2000; R 2006) Amount of Material in Soils Finer than the No. 200 (75-micrometer) Sieve

ASTM D1556 (2007) Density and Unit Weight of Soil in Place by the Sand-Cone Method

SECTION 31 00 00 Page 17

ASTM D1557 (2012) Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3) (2700 kN-m/m3)

ASTM D2487 (2011) Soils for Engineering Purposes (Unified Soil Classification System)

ASTM D422 (1963; R 2007) Particle-Size Analysis of Soils

ASTM D4318 (2010) Liquid Limit, Plastic Limit, and Plasticity Index of Soils

ASTM D6938 (2010) Standard Test Method for In-Place Density and Water Content of Soil and Soil-Aggregate by Nuclear Methods (Shallow Depth)

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2008; Errata 1-2010; Changes 1-3 2010;

Changes 4-6 2011) Safety and Health Requirements Manual

U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA)

EPA 600/4-79/020 (1983) Methods for Chemical Analysis of Water and Wastes

EPA SW-846.3-3 (1999, Third Edition, Update III-A) Test Methods for Evaluating Solid Waste:

Physical/Chemical Methods

1.3 DEFINITIONS

1.3.1 Satisfactory Materials

Satisfactory materials comprise any materials classified by ASTM D2487 as GW, GP, GM, GP-GM, GW-GM, GC, GP-GC, GM-GC, SW, SP. Satisfactory materials for grading comprise stones less than 8 inches, except for fill material for pavements and railroads which comprise stones less than 3 inches in any dimension.

1.3.2 Unsatisfactory Materials

Materials which do not comply with the requirements for satisfactory materials are unsatisfactory. Unsatisfactory materials also include man-made fills; trash; refuse; backfills from previous construction; and material classified as satisfactory which contains root and other organic matter or frozen material. Notify the Contracting Officer when encountering any contaminated materials.

1.3.3 Cohesionless and Cohesive Materials

Cohesionless materials include materials classified in ASTM D2487 as GW, GP, SW, and SP. Cohesive materials include materials classified as GC, SC, SECTION 31 00 00 Page 18

ML, CL, MH, and CH. Materials classified as GM and SM will be identified as cohesionless only when the fines are nonplastic. Perform testing, required for classifying materials, in accordance with ASTM D4318, ASTM C136, ASTM D422, and ASTM D1140.

1.3.4 Degree of Compaction

Degree of compaction required, except as noted in the second sentence, is expressed as a percentage of the maximum density obtained by the test procedure presented in ASTM D1557 abbreviated as a percent of laboratory maximum density. Since ASTM D1557 applies only to soils that have 30 percent or less by weight of their particles retained on the 3/4 inch sieve, express the degree of compaction for material having more than 30 percent by weight of their particles retained on the 3/4 inch sieve as a percentage of the maximum density in accordance with AASHTO T 180 and corrected with AASHTO T 224. To maintain the same percentage of coarse material, use the "remove and replace" procedure as described in NOTE 8 of Paragraph 7.2 in AASHTO T 180.

1.3.5 Hard/Unyielding Materials

Hard/Unyielding materials comprise weathered rock, dense consolidated deposits, or conglomerate materials which are not included in the definition of "rock" with stones greater than 3 inch in any dimension or as defined by the pipe manufacturer, whichever is smaller. These materials usually require the use of heavy excavation equipment, ripper teeth, or jack hammers for removal.

1.3.6 Rock

Solid homogeneous interlocking crystalline material with firmly cemented, laminated, or foliated masses or conglomerate deposits, neither of which can be removed without systematic drilling and blasting, drilling and the use of expansion jacks or feather wedges, or the use of backhoe-mounted pneumatic hole punchers or rock breakers; also large boulders, buried masonry, or concrete other than pavement exceeding 1/2 cubic yard in volume.

1.3.7 Unstable Material

Unstable materials are too wet to properly support the utility pipe, conduit, or appurtenant structure.

1.3.8 Initial Backfill Material

Initial backfill consists of select granular material or satisfactory materials free from rocks 3 inches or larger in any dimension or free from rocks of such size as recommended by the pipe manufacturer, whichever is smaller. When the pipe is coated or wrapped for corrosion protection, free the initial backfill material of stones larger 2 inches in any dimension or as recommended by the pipe manufacturer, whichever is smaller.

1.3.9 Expansive Soils

Expansive soils are defined as soils that have a plasticity index equal to or greater than 5 when tested in accordance with ASTM D4318.

SECTION 31 00 00 Page 19

1.4 SYSTEM DESCRIPTION

Subsurface soil boring logs are shown on the drawings. These data represent the best subsurface information available; however, variations may exist in the subsurface between boring locations.

1.4.1 Dewatering Work Plan

Submit procedures for accomplishing dewatering work.

1.5 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00

SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Dewatering Work Plan; G

SD-03 Product Data

Utilization of Excavated Materials; G

SD-06 Test Reports

Testing Borrow Site Testing

SD-07 Certificates

Testing

PART 2 PRODUCTS

2.1 REQUIREMENTS FOR OFFSITE SOILS

Test offsite soils brought in for use as backfill for Total Petroleum Hydrocarbons (TPH), Benzene, Toluene, Ethyl Benzene, and Xylene (BTEX) and full Toxicity Characteristic Leaching Procedure (TCLP) including ignitability, corrosivity and reactivity. Backfill shall contain a maximum of 100 parts per million (ppm) of total petroleum hydrocarbons (TPH) and a maximum of 10 ppm of the sum of Benzene, Toluene, Ethyl Benzene, and Xylene (BTEX) and shall pass the TCPL test. Determine TPH concentrations by using EPA 600/4-79/020 Method 418.1. Determine BTEX concentrations by using EPA SW-846.3-3 Method 5030/8020. Perform TCLP in accordance with EPA SW-846.3-3 Method 1311. Provide Borrow Site Testing for TPH, BTEX and TCLP from a composite sample of material from the borrow site, with at least one test from each borrow site. Within 24 hours of conclusion of physical tests, submit 2 copies of test results, including calibration curves and results of calibration tests. Do not bring material onsite until tests have been approved by the Contracting Officer.

PART 3 EXECUTION

3.1 STRIPPING OF TOPSOIL

Where indicated or directed, strip topsoil to a depth of 4 inches. Spread

SECTION 31 00 00 Page 20 topsoil on areas already graded and prepared for topsoil, or transported and deposited in stockpiles convenient to areas that are to receive application of the topsoil later, or at locations indicated or specified.

Keep topsoil separate from other excavated materials, brush, litter, objectionable weeds, roots, stones larger than 2 inches in diameter, and other materials that would interfere with planting and maintenance operations. Remove from the site any surplus of topsoil from excavations and gradings.

3.2 GENERAL EXCAVATION

Perform excavation of every type of material encountered within the limits of the project to the lines, grades, and elevations indicated and as specified. Perform the grading in accordance with the typical sections shown and the tolerances specified in paragraph FINISHING. Transport satisfactory excavated materials and place in fill or embankment within the limits of the work. Excavate unsatisfactory materials encountered within the limits of the work below grade and replace with satisfactory materials as directed. Include such excavated material and the satisfactory material ordered as replacement in excavation. Dispose surplus satisfactory excavated material not required for fill or embankment in areas approved for surplus material storage or designated waste areas. Dispose unsatisfactory excavated material in designated waste or spoil areas.

During construction, perform excavation and fill in a manner and sequence that will provide proper drainage at all times.

3.2.1 Ditches, Gutters, and Channel Changes

Finish excavation of ditches, gutters, and channel changes by cutting accurately to the cross sections, grades, and elevations shown on the drawings. Do not excavate ditches and gutters below grades shown.

Backfill the excessive open ditch or gutter excavation with satisfactory, thoroughly compacted, material or with suitable stone or cobble to grades shown. Dispose excavated material as shown or as directed, except in no case allow material be deposited a maximum 4 feet from edge of a ditch.

Maintain excavations free from detrimental quantities of leaves, brush, sticks, trash, and other debris until final acceptance of the work.

3.2.2 Drainage Structures

Make excavations to the lines, grades, and elevations shown, or as directed. Provide trenches and foundation pits of sufficient size to permit the placement and removal of forms for the full length and width of structure footings and foundations as shown. Clean rock or other hard foundation material of loose debris and cut to a firm, level, stepped, or serrated surface. Remove loose disintegrated rock and thin strata. Do not disturb the bottom of the excavation when concrete or masonry is to be placed in an excavated area. Do not excavate to the final grade level until just before the concrete or masonry is to be placed.

3.2.3 Drainage

Provide for the collection and disposal of surface and subsurface water encountered during construction. Completely drain construction site during periods of construction to keep soil materials sufficiently dry. Construct storm drainage features (ponds/basins) at the earliest stages of site development, and throughout construction grade the construction area to provide positive surface water runoff away from the construction activity and provide temporary ditches, swales, and other drainage features and

SECTION 31 00 00 Page 21 equipment as required to maintain dry soils. When unsuitable working platforms for equipment operation and unsuitable soil support for subsequent construction features develop, remove unsuitable material and provide new soil material as specified herein. It is the responsibility of the Contractor to assess the soil and ground water conditions presented by the plans and specifications and to employ necessary measures to permit construction to proceed.

3.2.4 Dewatering

Control groundwater flowing toward or into excavations to prevent sloughing of excavation slopes and walls, boils, uplift and heave in the excavation and to eliminate interference with orderly progress of construction. Take control measures by the time the excavation reaches the water level in order to maintain the integrity of the in situ material. While the excavation is open, maintain the water level continuously, at least 2 feet below the working level. Operate dewatering system continuously until construction work below existing water levels is complete. Submit performance records weekly.

3.2.5 Trench Excavation Requirements

Excavate the trench as recommended by the manufacturer of the pipe to be installed. Slope trench walls below the top of the pipe, or make vertical, and of such width as recommended in the manufacturer's printed installation manual. Provide vertical trench walls where no manufacturer's printed installation manual is available. Shore trench walls more than 3 feet high, cut back to a stable slope, or provide with equivalent means of protection for employees who may be exposed to moving ground or cave in.

Excavate trench walls which are cut back to at least the angle of repose of the soil. Give special attention to slopes which may be adversely affected by weather or moisture content. Do not exceed the trench width below the pipe top of 24 inches plus pipe outside diameter (O.D.) for pipes of less than 24 inches inside diameter, and do not exceed 36 inches plus pipe outside diameter for sizes larger than 24 inches inside diameter. Where recommended trench widths are exceeded, provide redesign, stronger pipe, or special installation procedures by the Contractor. The Contractor is responsible for the cost of redesign, stronger pipe, or special installation procedures without any additional cost to the Government.

3.2.5.1 Bottom Preparation

Grade the bottoms of trenches accurately to provide uniform bearing and support for the bottom quadrant of each section of the pipe. Excavate bell holes to the necessary size at each joint or coupling to eliminate point bearing. Remove stones of 3 inch or greater in any dimension, or as recommended by the pipe manufacturer, whichever is smaller, to avoid point bearing.

3.2.5.2 Removal of Unyielding Material

Where overdepth is not indicated and unyielding material is encountered in the bottom of the trench, remove such material 12 inch below the required grade and replaced with suitable materials as provided in paragraph

BACKFILLING AND COMPACTION.

3.2.5.3 Removal of Unstable Material

Where unstable material is encountered in the bottom of the trench, remove

SECTION 31 00 00 Page 22 such material to the depth directed and replace it to the proper grade with select granular material as provided in paragraph BACKFILLING AND COMPACTION. When removal of unstable material is required due to the Contractor's fault or neglect in performing the work, the Contractor is responsible for excavating the resulting material and replacing it without additional cost to the Government.

3.2.5.4 Excavation for Appurtenances

Provide excavation for manholes, catch-basins, inlets, or similar structures sufficient to leave at least 12 inches clear between the outer structure surfaces and the face of the excavation or support members.

Clean rock or loose debris and cut to a firm surface either level, stepped, or serrated, as shown or as directed. Remove loose disintegrated rock and thin strata. Specify removal of unstable material. When concrete or masonry is to be placed in an excavated area, take special care not to disturb the bottom of the excavation. Do not excavate to the final grade level until just before the concrete or masonry is to be placed.

3.2.6 Underground Utilities

The Contractor is responsible for movement of construction machinery and equipment over pipes and utilities during construction. Report damage to utility lines or subsurface construction immediately to the Contracting Officer.

3.3 BACKFILLING AND COMPACTION

Place backfill adjacent to any and all types of structures, and compact to at least 90 percent laboratory maximum density for cohesive materials or 95 percent laboratory maximum density for cohesionless materials, to prevent wedging action or eccentric loading upon or against the structure. Prepare ground surface on which backfill is to be placed and provide compaction requirements for backfill materials in conformance with the applicable portions of paragraphs GROUND SURFACE PREPARATION. Finish compaction by sheepsfoot rollers, pneumatic-tired rollers, steel-wheeled rollers, vibratory compactors, or other approved equipment.

3.3.1 Trench Backfill

Backfill trenches to the grade shown.

3.3.1.1 Replacement of Unyielding Material

Replace unyielding material removed from the bottom of the trench with select granular material or initial backfill material.

3.3.1.2 Replacement of Unstable Material

Replace unstable material removed from the bottom of the trench or excavation with select granular material placed in layers not exceeding 6 inches loose thickness.

3.3.1.3 Final Backfill

Fill the remainder of the trench, except for special materials for roadways and airfields, with satisfactory material. Place backfill material and compact as follows:

SECTION 31 00 00 Page 23

a. Roadways and Airfields: Place backfill up to the required elevation as specified. Do not permit water flooding or jetting methods of compaction.

b. Turfed or Seeded Areas and Miscellaneous Areas: Deposit backfill in layers of a maximum of 12 inches loose thickness, and compact it to 85 percent maximum density for cohesive soils and 90 percent maximum density for cohesionless soils. Do not permit compaction by water flooding or jetting. Apply this requirement to all other areas not specifically designated above.

3.3.2 Backfill for Appurtenances

After the manhole, catch basin, inlet, or similar structure has been constructed , place backfill in such a manner that the structure is not be damaged by the shock of falling earth. Deposit the backfill material, compact it as specified for final backfill, and bring up the backfill evenly on all sides of the structure to prevent eccentric loading and excessive stress.

3.4 SUBGRADE PREPARATION

3.4.1 Proof Rolling

Finish proof rolling on an exposed subgrade free of surface water (wet conditions resulting from rainfall) which would promote degradation of an otherwise acceptable subgrade. After stripping, proof roll the existing subgrade of the paved areas with six passes of a 15 ton, pneumatic-tired roller. Operate the roller in a systematic manner to ensure the number of passes over all areas, and at speeds between 2-1/2 to 3-1/2 mph. When proof rolling, provide one-half of the passes made with the roller in a direction perpendicular to the other passes. Notify the Contracting Officer a minimum of 3 days prior to proof rolling. Perform proof rolling in the presence of the Contracting Officer. Undercut rutting or pumping of material as directed by the Contracting Officer and replace with select material. Prepare bids based on replacing approximately 2500 square yards, with an average depth of 48 inches at various locations.

3.4.2 Construction

Shape subgrade to line, grade, and cross section, and compact as specified. Include plowing, disking, and any moistening or aerating required to obtain specified compaction for this operation. Remove soft or otherwise unsatisfactory material and replace with satisfactory excavated material or other approved material as directed. Excavate rock encountered in the cut section to a depth of 6 inches below finished grade for the subgrade. Bring up low areas resulting from removal of unsatisfactory material or excavation of rock to required grade with satisfactory materials, and shape the entire subgrade to line, grade, and cross section and compact as specified. After rolling, do not show deviations for the surface of the subgrade for airfields greater than 1/2 inch when tested with a 12 foot straightedge applied both parallel and at right angles to the centerline of the area. Do not vary the elevation of the finish subgrade more than 0.05 foot from the established grade and cross section.

3.4.3 Compaction

Finish compaction by sheepsfoot…