Atch_5_-_Design_Analysis.pdf

17 April 2015 100% Design

REPAIR ANTI-TERRORISM FORCE PROTECTION

BUILDING 470

PDPG 13-0116

DESIGN ANALYSIS

Prepared for:

MARCH AIR RESERVE BASE

452 Operational Contracting Office 1940 Graeber Street, Building 449 March ARB, California 92518-1650

Prepared by:

J.C. CHANG & ASSOCIATES, INC.

Engineers � Architects � Planners 385 Van Ness Avenue, Suite 208 Torrance, California 90501 Telephone: (310) 212-7644 www.jccainc.com

JCCA 14790-2

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1231815305C Typewritten Text Attachment 5 to

FA4664-15-R-0013

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March Air Reserve Base

PDPG 13-0116

Attachment 5 to

FA4664-15-R-0013

Repair Anti-Terrorism Force Protection Building 470

JCCA 14790-2 - i - Table of Contents

Table of Contents

Section

1.0 Project Description

2.0 Appendices

Appendix

95% Submittal Review Comments

Cost Estimate (REMOVED)

Site Photographs

EISA Section 438 Compliance Documentation

Hydrology Report

Waterproofing Data Sheets

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Repair Anti-Terrorism Force Protection Building 470

JCCA 14790-2 Page 1.1 Section 1.0 Project Description

Section 1.0 Project Description

1.1 General

A. Refer to the March Air Reserve Base (MARB) Statement of Work dated 18 August

2014 for a complete project description.

B. The Scope of Work was reviewed and clarified during the kick-off meeting on 7

October 2014. Paragraph 3.2.1.1 lists three options. Option bid items will not be shown on the drawings. Direction was to proceed as follows:

Option 1: The building will not be painted. Include miscellaneous painting only.

Option 2: Force Protection items will be as outlined in email dated 04/25/14 from Gary McDaniel (MARB Architect) to Mike Runkle (MARB Anti-

Terrorism Officer). A copy of the email was provided to JCCA.

Option 3: Trench drain and sump pump at bottom of ramp at rear of building is not included in this project.

1.2 Purpose

A. The primary objective of this project is to renovate the exterior space of Building

470. Specific requirements are required to upgrade the exterior space in order for the building to function as the historical Command Center. Included in the design will be a complete landscape design using existing palms or other original paintings, if feasible, to the design. A complete irrigation system, as well as prescribing preventative water intrusion measures to the basement of the building.

ATFP measures all utility requirements for irrigation, such as electrical, water, parking, ADA parking, pedestrian ADA accessibility ramp, curbs, curbs and gutters, bollards, and revised front entry design shall be included. The project shall capture and align with historical requirements, as well as have a balanced approach with

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Repair Anti-Terrorism Force Protection Building 470

JCCA 14790-2 Page 1.2 Section 1.0 Project Description

Governmental LID (Low Impact Development) requirements. Landscape and parking is approximately 54,470 sq. ft.

1.3 Existing Conditions

A. Building 470 and site area encompass 64,585 square feet and is located in the historic district of March Air Reserve Base. The structure is two stories with a mechanical and storage rooms in the basement. The Headquarters Building, B-

470, was recently renovated, however no landscape or exterior improvements of the building were included in that renovation. The building is currently occupied by multi-functions, as well as the Base Commander. It will remain occupied during construction. No one will be vacating the facility. A fenced entrance way must be maintained during all construction activities.

Currently, the site layout of the facility is not correctly configured to accommodate

ATFP requirements, ADA parking, or Sustainable Historical Landscape design features. The new functions and an exterior site re-design will be required.

1.4 Design Components

A. The project objective is to upgrade the exterior of Building 470. Since it is in the

Historic District of March ARB, historic features shall be restored where possible.

B. It is not anticipated that lead based paint or asbestos containing materials (ACM) will be encountered in the course of the work.

C. Unique situations or features or major engineering systems are not featured in this project.

D. Operability and maintainability of the design features are standard and will not present any special challenges.

E. Environmental issues during construction will be addressed in the design by

Erosion and Sediment Control Best Management Practices, and standard specification sections. No permanent environmental concerns will result from this project.

March Air Reserve Base Repair Anti-Terrorism Force Protection PDPG 13-0116 Building 470

JCCA 14790-2 Page 1.3 Section 1.0 Project Description

F. Permanent best management practices will include a dry river bed for the outfall from the lift station which will collect groundwater from the sub surface drainage system and from the roof/downspouts. There will be a 4” diameter perforated pipe for the subdrain system around the basement and a 6” diameter solid pipe for the drainage coming from the downspouts. Both pipes will slope at 0.5%. Any runoff that does not percolate into the subgrade will sheet flow towards Graeber Street.

G. The total runoff compared to existing will be reduced by 0.35 cfs because of increased vegetated areas.

H. Electrical power for the small (1.6 horsepower) submersible pumps in the lift station will be obtained from the existing building electrical system. Same for new irrigation controller.

I. Historical building site features including plain gray concrete, rectangular pavement around flag pole, handrails at steps and ramps, joint pattern in concrete pavement, landscaping, etc. will be restored as far as is practical.

1.5 Specific Design Features

A. A straight 6” curb will be provided at the landscape island around the flagpole. No

ADA access is required.

B. The driveway in front of the building will be one way (to the southwest). Provide

“No Entry” signage at the south side.

C. Driveway will be concrete designed for 80,000 pound truck loading. Driveway joint pattern to match original.

D. At steps at main entrance, remove new handrail and replace with handrail matching original configuration. Remove old handrail on original steps. Similar for handrail at new ramp on west side of building.

E. Adjacent to building, provide 8” curb for force protection. Building set-back to be

18’-0” minimum from face of curb.

F. Removable bollard spacing to be 3’-0” on center.

G. All work to comply with the Facility Excellence Plan (FEP).

H. Utilize surface runoff for drainage. Front of building to drain to curb and gutter on

Graeber Street.

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Repair Anti-Terrorism Force Protection Building 470

JCCA 14790-2 Page 1.4 Section 1.0 Project Description

I. The flow from the roof/downspouts and the subdrain system around the basement will run underground to a wet well with a duplex sump pump installed outside the building. The flow from the pavement and pervious areas will run towards Graber

Street and do not contribute to the drainage at the pump.

J. Provide 3’ to 4’ deep subdrain system consisting of drain rock around a perforated pipe adjacent to and in front of the building (north and west sides).

K. At the back of the building (south side) there is pavement inside the mechanical yard. This will remain as is with no water proofing required on the basement wall in this area.

L. On the north and west sides of the building at the basement and crawl space, provide waterproofing on the wall below grade. Extend down below the subdrain.

Paint bottom of walls (above waterproofing). Color to match existing.

M. Due to high water table and poor percolation rates, a wet well with submersible pumps will be provided to discharge to rock swale with an outlet to the curb and gutter on Graeber Street.

N. All landscaping adjacent to the building to be removed and replaced with turf and low maintenance shrubs. Provide mow strips at edge of turf areas. Comply with

Force Protection requirements for shrubbery height and distance from the building.

O. Provide areaways around basement windows as required. Provide drain in bottom connected to subdrain below.

P. Use California Gold decorative rock per FEP.

Q. Do not use unit pavers. All hardscape to be gray concrete.

R. Provide 4 accessible parking stalls (one being Van accessible). Provide 2 motorcycle parking stalls.

S. Replace building number sign on front side of building.

T. Remove tint on plexiglass windows in turret on top of the building. If cannot be removed then replace plexiglass with clear plexiglass.

U. Access to flight-line gate, including card reader control will not be obstructed during construction.

V. Contractor to provide construction fence around area of work. Provide for Tenant

Access to the building.

W. The contractor will prepare and implement a project site specific storm water pollution prevention plan (SWPPP).

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Repair Anti-Terrorism Force Protection Building 470

JCCA 14790-2 Page 2.1 Section 2.0 Appendices

Section 2.0 Appendices

2.1 95% Submittal Review Comments

See Appendix 1.

2.2 Cost Estimate

REMOVED

2.3 Site Photographs

See Appendix 3.

2.4 EISA Section 438 Compliance Documentation

See Appendix 4.

2.5 Hydrology Report

See Appendix 5.

2.6 Waterproofing Data Sheets

See Appendix 6 for data on the two component cold applied waterproofing system being specified for below grade waterproofing of the basement and crawl space walls. The waterproofing is applied on the wall exterior (positive side).

Attachment 5 to

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Repair Anti-Terrorism Force Protection Building 470

JCCA 14790-2 Appendix 1 95% Submittal Review Comments

APPENDIX 1

95% SUBMITTAL REVIEW COMMENTS

Attachment 5 to

FA4664-15-R-0013

APPENDIX 2

COST ESTIMATE (REMOVED)

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Repair Anti-Terrorism Force Protection Building 470

JCCA 14790-2 Appendix 3 Site Photographs

APPENDIX 3

SITE PHOTOGRAPHS

Building�470�Front�Elevation�

Building�470�Parking�Lot�

Building�470�Parking�Lot�

Building�470�Main�Entrance�Stairs��

Building�470�Side�Entrance�Stairs�

Building�470�Back�Elevation�

Building�470�Rear�Ramp�

March Air Reserve Base PDPG 13-0116

Attachment 5 to

FA4664-15-R-0013

Repair Anti-Terrorism Force Protection Building 470

JCCA 14790-2 Appendix 4 EISA Section 438 Compliance Documentation

APPENDIX 4

EISA SECTION 438 COMPLIANCE

DOCUMENTATION

Repair Anti -Terrorism Force Protection

PDPG/30116 Bldg. 470

Repair Anti-Terrorism Force Protection and upgrade paving and landscaping around Building 470.

54,470

0.91

TC= 12.5 min TC=16.0 min

Peak discharge Q has ben calculated using the rational method. Type of flow: overland flow.

Intensity based on 50 year precipitation from NOAA atlas precipitation frequency estimates.

Note:

The impervious area is reduced by this project.

Therefore, hydrological parameters are reduced.

Front Area Back Area

1.15

0.71 0.60

Front Area Back Area TC= 7.5 min TC= 6.0 min

Front Area Back Area

0.09 ac-ft 0.10 ac-ft

0.05 ac-ft 0.05 ac-ft

The watershed area is small and conventional application of the rational method was utilized.

Discharge from the lift station is to a dry stream bed which allows infiltration to the subgrade.

None.

No.

X

X

Shay Redmond Project Manager/Civil Engineer

2/16/2015

(310) 212-7644J.C. Chang & Associates, Inc.

Attachment 5 to

FA4664-15-R-0013

Repair Anti-Terrorism Force Protection Building 470

JCCA 14790-2 Appendix 5 Hydrology Report

APPENDIX 5

HYDROLOGY REPORT

March�Air�Reserved�Base Repair���Anti�Terrorism Force�Protection�Building�470

Wing�Headquarters

HYDROLOGY�CALCULATIONS

Site�Location:�Building�470,�March�Air�Reserved�Base Type�of�facility:��Military�Base

1.�The�flow�from�the�roof/downspouts�and�the�subdrain�system�around�the�basement�run�underground�to�a�wet�well�with�a�duplex�sump�pump� �����installed�outside�the�building.

�����The�flow�from�the�pavement�and�pervious�areas�run�towards�Graeber�street�and�do�not�contribute�to�the�drainage�at�the�pump.

�����The�purpose�of�the�present�study�is�to�analize�the�pre�development�and�post�development�runoff�based�on�the�10�year,�3�Hour�storm�event �����and�determine�the�Flow�Capacity�requirement�for�the�pump.

2.�The�peak�dicharge�Q�has�been�calculated�with�the�Rational�Method.�There�is�a�total�decrease�of�0.35�cfs�in�the�post�development�storm�water� ����discharge�compared�to�the�pre�development�level.�(1.51�cfs���1.86�cfs�=��0.35�cfs) ����The�Total�disturbed�area�is�0.93�Acres

3.�See�the�table�below�for�the�pervious�and�impervious�areas.� ��������Area�1�is�the�front�area�which�drains�to�Graeber�Street ��������Area�2�is�the�rear�area�which�drains�to�the�flight�line�drainage�system.

��������Area�3�is�the�roof�area�which�drains�to�the�wet�well/sump�pump.

PRE�DEVELOPMENT

DRAINAGE�

AREA

ROOFTOP�

IMPERVIOUS

C PAVEMENT C PERVIOUS C TOTAL�AREA�

(AC)

WEIGHTED�

C

TC��������

(MIN)

P�(IN)������

(10�year) I������

(IN/HR)

Q���������

(CFS)

1 0.12 0.90 0.67 0.90 0.25 0.30 1.04 0.76 12.5 0.304 1.46 1.15 2 0.11 0.90 0.22 0.90 0.33 0.30 0.66 0.60 7.5 0.225 1.80 0.71

� 1.70 � 1.86

POST�DEVELOPMENT

DRAINAGE�

AREA

ROOFTOP�

IMPERVIOUS

C PAVEMENT C PERVIOUS C TOTAL�AREA�

(AC)

WEIGHTED�

C

TC��������

(MIN)

P�(IN)������

(10�year) I������

(IN/HR)

Q���������

(CFS)

1 0.23 0.90 0.36 0.90 0.57 0.30 1.16 0.61 16.0 0.346 1.30 0.91 2 0.00 0.90 0.22 0.90 0.32 0.30 0.54 0.54 6.0 0.205 2.05 0.60

� 1.70 � 1.51

PUMP�DESIGN

DRAINAGE�

AREA

ROOFTOP�

IMPERVIOUS

C PAVEMENT C PERVIOUS C TOTAL�AREA�

(AC)

WEIGHTED�

C

TC��������

(MIN)

P�(IN)������

(10�year) I������

(IN/HR)

Q���������

(CFS)

3 0.12 0.90 0.00 0.90 0.00 0.30 0.12 0.90 5.0 0.192 2.30 0.24

4.�The�intensity�is�calculated�based�on�10�year�precipitation�obtained�from�NOAA�Atlas�Precipitation�Frequency�Estimates�(See�appendices)

Project�Information Latitude: 33.8978 N Longitude: 117.2583 W

Values�From�Table:�(10�Year) Time Precipitation 5�min 0.192 in 12.5�min�= 0.304 in 10�min 0.275 in 7.5�min�= 0.225 in 15�min 0.333 in 16�min�= 0.346 in 30�min 0.527 in 6�min�= 0.205 in

5.�Type�of�Flow�and�Time�of�Concentration�(TC) Overland�Flow:

Shallow�Concentrated�Flow:

Channel�Flow

Also�known�as�sheet�flow,�is�a�shallow�flow�of�water,�usually�less�than�one�inch�deep,�over�plane� surfaces.�Overland�flow�is�usually�found�at�the�upper�reaches�of�the�hydraulic�flow�path.

Usually�begins�where�overland�flow�converges�to�form�small�rills�or�gullies�and�swales.�Shallow�

Occurs�where�flow�converges�in�gullies,�ditches,�and�natural�or�man�made�water�conveyances�

I�� ����

Wing�Headquarters

Our�flow�is�Shallow�overland�flow.

Wing�Headquarters

SYNTHETIC�UNIT�HYDROGRAPH�METHOD

Unit�Hydrograph�and�effective�Rain�Calculation�form

Fp= 0.37 in/hr (See�Plate�E�6.2) Project:

Ai�=� 0.9 (See�Plate�E�6.3) Repair�Anti�Terrorism�Force�Protection,�Building�470 F= 0.070 in/hr By: CP Date:� 2/12/2015

[1]�Concentration�point 1 [2]�Area�designation 1 [3]Drainage�Area�Acres 1.04 [4]�Ultimate�discharge�cfs�hrs/in�(645*[3]) N/A [5]�Unit�time�minutes (100�to�200%�of�Lag) 15 [6]�Lag�time�minutes 12.5 [7]�Unit�time�percent�of�Lag�(100*[5]/[6]) N/A [8]�S�Curve N/A [9]�Storm�Frequency�and�duration 10�Yr,�3�Hr [10]�Total�Adjusted�Storm�Rain�Inches 1.20 [11]�Variable�Loss�Rate�(Avg)�inches/hour N/A [12]�Minimum�loss�rate�(for�var.�loss)�in/hr N/A [13]�Constant�loss�rate�inches/hour 0.07 [14]�Low�loss�rate�Percent

[15] [16] [17] [18] [19] [20] [21] [22] [23] [24] Unit�time� Period����m

Time� Percent�of�

Lag� [7]*[15]

Cumulative� Average� Percent�of� Ultimate�

Discharge��(S� Graph)

Distrib�� Graph�

Percent�[17]m� [17]m�1

Unit� Hydrograph� Cfs�Hrs/in�

[4]*[18]/100

Pattern� Percent������

(PL�E�5.9)

Storm�Rain� In/Hr�

60[10][20]/(100* [5])

Loss�Rate�In/Hr Effective� Rain�In/Hr� [21]�[22]

Flow�Cfs� [3][23]

1 3.7 0.178 0.07 0.108 0.112 2 4.8 0.230 0.07 0.160 0.167 3 5.1 0.245 0.07 0.175 0.182

4 SHORT�CUT 4.9 0.235 0.07 0.165 0.172

5 METHOD 6.6 0.317 0.07 0.247 0.257

6 7.3 0.350 0.07 0.280 0.292 7 Warning: 8.4 0.403 0.07 0.333 0.347 8 The�short�cut�method�is� 9.0 0.432 0.07 0.362 0.376 9 an�approximation�and� 12.3 0.590 0.07 0.520 0.541 10 reasonable�for�small 17.6 0.845 0.07 0.775 0.806 11 drainage�areas�and 16.1 0.773 0.07 0.703 0.731 12 short�lag�times�only. 4.2 0.202 0.07 0.132 0.137

�= 100 �= 3.960

Effective�Rain�= �[23]�x�unit�Time�Hrs Area�= 1.04 Acres = 0.99 in = 45302 sf = 0.083 ft

Flood�Volume�= Effective�Rain�x�Area = 3737 cf = 0.09 Ac/ft

AREA�1�(FRONT)�PRE�DEVELOPMENT

Wing�Headquarters

SYNTHETIC�UNIT�HYDROGRAPH�METHOD

Unit�Hydrograph�and�effective�Rain�Calculation�form

Fp= 0.37 in/hr (See�Plate�E�6.2) Project:

Ai�=� 0.9 (See�Plate�E�6.3) Repair�Anti�Terrorism�Force�Protection,�Building�470 F= 0.070 in/hr By: CP Date:� 2/12/2015

[1]�Concentration�point 1 [2]�Area�designation 1 [3]Drainage�Area�Acres 1.16 [4]�Ultimate�discharge�cfs�hrs/in�(645*[3]) N/A [5]�Unit�time�minutes (100�to�200%�of�Lag) 30 [6]�Lag�time�minutes 16 [7]�Unit�time�percent�of�Lag�(100*[5]/[6]) N/A [8]�S�Curve N/A [9]�Storm�Frequency�and�duration 10�Yr,�3�Hr [10]�Total�Adjusted�Storm�Rain�Inches 1.20 [11]�Variable�Loss�Rate�(Avg)�inches/hour N/A [12]�Minimum�loss�rate�(for�var.�loss)�in/hr N/A [13]�Constant�loss�rate�inches/hour 0.07 [14]�Low�loss�rate�Percent

[15] [16] [17] [18] [19] [20] [21] [22] [23] [24] Unit�time� Period����m

Time� Percent�of�

Lag� [7]*[15]

Cumulative� Average� Percent�of� Ultimate�

Discharge��(S� Graph)

Distrib�� Graph�

Percent�[17]m� [17]m�1

Unit� Hydrograph� Cfs�Hrs/in�

[4]*[18]/100

Pattern� Percent������

(PL�E�5.9)

Storm�Rain� In/Hr�

60[10][20]/(100* [5])

Loss�Rate�In/Hr Effective� Rain�In/Hr� [21]�[22]

Flow�Cfs� [3][23]

1 8.5 0.204 0.07 0.134 0.155 2 10.0 0.240 0.07 0.170 0.197 3 13.9 0.334 0.07 0.264 0.306

4 SHORT�CUT 17.4 0.418 0.07 0.348 0.403

5 METHOD 29.9 0.718 0.07 0.648 0.751

6 20.3 0.487 0.07 0.417 0.484

Warning:

The�short�cut�method�is� an�approximation�and� reasonable�for�small drainage�areas�and short�lag�times�only.

�= 100 �= 1.980

Effective�Rain�= �[23]�x�unit�Time�Hrs Area�= 1.16 Acres = 0.99 in = 50530 sf = 0.083 ft

Flood�Volume�= Effective�Rain�x�Area = 4169 cf = 0.10 Ac/ft

AREA�1�(FRONT)�POST�DEVELOPMENT

Wing�Headquarters

SYNTHETIC�UNIT�HYDROGRAPH�METHOD

Unit�Hydrograph�and�effective�Rain�Calculation�form

Fp= 0.37 in/hr (See�Plate�E�6.2) Project:

Ai�=� 0.9 (See�Plate�E�6.3) Repair�Anti�Terrorism�Force�Protection,�Building�470 F= 0.070 in/hr By: CP Date:� 2/12/2015

[1]�Concentration�point 1 [2]�Area�designation 2 [3]Drainage�Area�Acres 0.66 [4]�Ultimate�discharge�cfs�hrs/in�(645*[3]) N/A [5]�Unit�time�minutes (100�to�200%�of�Lag) 30 [6]�Lag�time�minutes 16 [7]�Unit�time�percent�of�Lag�(100*[5]/[6]) N/A [8]�S�Curve N/A [9]�Storm�Frequency�and�duration 10�Yr,�3�Hr [10]�Total�Adjusted�Storm�Rain�Inches 1.20 [11]�Variable�Loss�Rate�(Avg)�inches/hour N/A [12]�Minimum�loss�rate�(for�var.�loss)�in/hr N/A [13]�Constant�loss�rate�inches/hour 0.07 [14]�Low�loss�rate�Percent

[15] [16] [17] [18] [19] [20] [21] [22] [23] [24] Unit�time� Period����m

Time� Percent�of�

Lag� [7]*[15]

Cumulative� Average� Percent�of� Ultimate�

Discharge��(S� Graph)

Distrib�� Graph�

Percent�[17]m� [17]m�1

Unit� Hydrograph� Cfs�Hrs/in�

[4]*[18]/100

Pattern� Percent������

(PL�E�5.9)

Storm�Rain� In/Hr�

60[10][20]/(100* [5])

Loss�Rate�In/Hr Effective� Rain�In/Hr� [21]�[22]

Flow�Cfs� [3][23]

1 8.5 0.204 0.07 0.134 0.088 2 10.0 0.240 0.07 0.170 0.112 3 13.9 0.334 0.07 0.264 0.174

4 SHORT�CUT 17.4 0.418 0.07 0.348 0.229

5 METHOD 29.9 0.718 0.07 0.648 0.427

6 20.3 0.487 0.07 0.417 0.275

Warning:

The�short�cut�method�is� an�approximation�and� reasonable�for�small drainage�areas�and short�lag�times�only.

�= 100 �= 1.980

Effective�Rain�= �[23]�x�unit�Time�Hrs Area�= 0.66 Acres = 0.99 in = 28750 sf = 0.083 ft

Flood�Volume�= Effective�Rain�x�Area = 2372 cf = 0.05 Ac/ft

AREA�2�(REAR)�PRE�DEVELOPMENT

Wing�Headquarters

SYNTHETIC�UNIT�HYDROGRAPH�METHOD

Unit�Hydrograph�and�effective�Rain�Calculation�form

Fp= 0.37 in/hr (See�Plate�E�6.2) Project:

Ai�=� 0.9 (See�Plate�E�6.3) Repair�Anti�Terrorism�Force�Protection,�Building�470 F= 0.070 in/hr By: CP Date:� 2/12/2015

[1]�Concentration�point 1 [2]�Area�designation 2 [3]Drainage�Area�Acres 0.54 [4]�Ultimate�discharge�cfs�hrs/in�(645*[3]) N/A [5]�Unit�time�minutes (100�to�200%�of�Lag) 10 [6]�Lag�time�minutes 6 [7]�Unit�time�percent�of�Lag�(100*[5]/[6]) N/A [8]�S�Curve N/A [9]�Storm�Frequency�and�duration 10�Yr,�3�Hr [10]�Total�Adjusted�Storm�Rain�Inches 1.20 [11]�Variable�Loss�Rate�(Avg)�inches/hour N/A [12]�Minimum�loss�rate�(for�var.�loss)�in/hr N/A [13]�Constant�loss�rate�inches/hour 0.07 [14]�Low�loss�rate�Percent

[15] [16] [17] [18] [19] [20] [21] [22] [23] [24] Unit�time� Period����m

Time� Percent�of�

Lag� [7]*[15]

Cumulative� Average� Percent�of� Ultimate�

Discharge��(S� Graph)

Distrib�� Graph�

Percent�[17]m� [17]m�1

Unit� Hydrograph� Cfs�Hrs/in�

[4]*[18]/100

Pattern� Percent������

(PL�E�5.9)

Storm�Rain� In/Hr�

60[10][20]/(100* [5])

Loss�Rate�In/Hr Effective� Rain�In/Hr� [21]�[22]

Flow�Cfs� [3][23]

1 3.7 0.266 0.07 0.196 0.106 2 2.6 0.187 0.07 0.117 0.063 3 3.3 0.238 0.07 0.168 0.091

4 SHORT�CUT 3.3 0.238 0.07 0.168 0.091

5 METHOD 3.3 0.238 0.07 0.168 0.091

6 3.4 0.245 0.07 0.175 0.094 7 Warning: 4.4 0.317 0.07 0.247 0.133 8 The�short�cut�method�is� 4.2 0.302 0.07 0.232 0.125 9 an�approximation�and� 5.3 0.382 0.07 0.312 0.168 10 reasonable�for�small 5.1 0.367 0.07 0.297 0.160 11 drainage�areas�and 6.4 0.461 0.07 0.391 0.211 12 short�lag�times�only. 5.9 0.425 0.07 0.355 0.192 13 7.3 0.526 0.07 0.456 0.246 14 8.5 0.612 0.07 0.542 0.293 15 14.1 1.015 0.07 0.945 0.510 16 14.1 1.015 0.07 0.945 0.510 17 3.8 0.274 0.07 0.204 0.110 18 2.4 0.173 0.07 0.103 0.056

�= 101 �= 6.019

Effective�Rain�= �[23]�x�unit�Time�Hrs Area�= 0.54 Acres = 1.0032 in = 23522 sf = 0.084 ft

Flood�Volume�= Effective�Rain�x�Area = 1966 cf = 0.05 Ac/ft

AREA�2�(REAR)�POST�DEVELOPMENT

SOIL "C"

Fp=0.37 in/hr

RI=69

Attachment 5 to

FA4664-15-R-0013

Repair Anti-Terrorism Force Protection Building 470

JCCA 14790-2 Appendix 6 Waterproofing Data Sheets

APPENDIX 6

WATERPROOFING DATA SHEETS