Atch_4_-_Design_Analysis_-_Dated_6_May_15.pdf

6 May 2015 100% Re-Submittal

INSTALL SPILL CONTROL GATE

MEYER STREET CHANNEL

PDPG 12-0141

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 14790-1

FA4664-15-R-0017

Attachment 4

March Air Reserve Base Install Spill Control Gate PDPG 12-0141 Meyer Street Channel

JCCA 14790-1 - i - Table of Contents

Table of Contents

Section

1.0 Project Description

2.0 Appendices

Appendix

1 Annotated 100% Review Comments

2 Cost Estimate

3 Site Photographs

4 3-Dimensional Renderings of New Spill Gate

5 Stop Log Type Spill Gate Data Sheets

6 Structural Calculations

Not Included.

Section 1.0 Project Description

1.1 General

A. Refer to the March Air Reserve Base (MARB) Statement of Work (SOW) dated 15

September 2014 for a complete project description.

B. J.C. Chang & Associates, Inc. (JCCA) will provide traditional design services to the

452nd Civil Engineer Division at March Air Reserve Base, California for project

PDPG 12-0141, Design to Install Spill Control Gate in Meyer Street Channel. This gate is required by regulations (Spill Prevention Control and Countermeasure regulations) to be installed in Meyer Street Canal to protect water ways outside of

MARB from accidental spill.

1.2 Purpose

A. The primary objective of this project is to provide a complete and functional design for the installation of a spill control gate in the historic district on the Meyer Street channel.

1.3 Existing Conditions

A. The Meyer Street Channel has no means of containing a fuel spill. Spill Prevention, Control, and Counter Measures regulations, The Oil Pollution Prevention Act, and the Clean Water Act require that a spill control gate be installed on Meyer Street to provide containment and prevent environmental contamination in the event of an oil/fuel spill.

B. The site plan for the Meyer Street Channel can be seen in the 35% drawings, sheet C1.1. The cross sections of the Channel can be seen in the following sheet.

These drawings were developed from a survey performed by JCCA on October 10, 2014. From the cross sectional views, it is apparent that the dimensions of the channel are ever changing and the floor contour level is not consistent.

JCCA 14790-1 Page 1.1 Section 1.0 Project Description

1.4 Design Components

A. The project objective is to install a spill control gate in the Meyer Street channel.

Since it is in the Historic District of MARB, historic features shall be maintained and/or 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. Operability and maintainability of the design features will be required by site personal. These will be provided for the selected design option.

D. 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.

E. Permanent best management practices will be decided during the design.

F. Runoff from all impervious surfaces will be routed to the existing channel.

G. New electrical power will not be required for this project. Operation of the spill control gates will be manual.

H. Historical building site features will include finishes and colors to match adjacent surfaces.

I. Existing pedestrian bridge and drain pipes will be protected in place. Electrical items will need to be relocated during construction to avoid damage. New electrical conduit routing and electrical metering device location will be provided.

J. Spill control gates must have complete sealing on the bottom and sides of the gate.

This will be accomplished using rubber bulb seals in contact with flush stainless steel (to mitigate rust). The pressure produced by water flow and/or the force of gravity will insure a solid contact between the rubber bulb seal and steel. Photo 1 in Appendix 3 shows how debris accumulation is an issue and will be a design constraint for the sealing of the spill control gate. Additionally, due to infrequent use, stagnant water must not be created in result of the spill control gate installation. Since the channel spill control gate cannot have any impediment on the seal, the bottom of the channel must not have any obstructions. This will be accomplished with proper sloping of the channel bed and walls.

JCCA 14790-1 Page 1.2 Section 1.0

1.5 Specific Design Features

A. Spill control gate will operate manually.

B. Gate material will be aluminum to reduce rusting and deterioration. Gate frame and apparatuses will be stainless steel.

C. Spill control gate assembly will be sized to the maximum channel base width at installation location and will be less than the height of the road. This is to mitigate overflow and flooding onto to the adjacent roadway.

D. Spill control gate will be properly sealed to provide sufficient water proofing.

E. Meyer Street channel concrete will be demoed only where required to provide a proper gate assembly. This includes the area where the game frame is to be installed and a certain length of section before and after the frame. This is to ensure proper grading and smooth surfaces to tie into the existing channel.

F. Gate assembly will require additional concrete structures and embedments.

Embedments to be designed and grouted per gate manufacturer’s recommendations and in compliance with AWWA and any other applicable code.

G. The area established for installation in the design constraints is east of the drain pipe outlet near the pedestrian crosswalk (shown in phot 1, Appendix 3) and west of the security grate (shown in photo 2, Appendix 3), which can be located on

Drawings C1.1, of the submitted drawings.

H. The electrical conduit running along the south wall of the channel will need to be relocated above the channel wall. The existing flow sensing/sampling wiring and tubing will require relocation.

I. The clear opening after gate installation will be so no to constrict flow while gate is not in operation.

J. The gate will be designed for full flow during opening and closing operation.

Additionally, it will be designed for the maximum hydrostatic pressure when gate is closed.

K. The gate type to be furnished is Stop Logs, sized for a clear opening of 7 feet.

L. Stop Logs gates are segmented, portable gate sections, with seals between the sections which become water tight with gravity alone. Their design is structural aluminum.

JCCA 14790-1 Page 1.3 Section 1.0

M. The channel will have concrete and aluminum embedment guides similar to the vertical lift gate, currently used at the site as seen in Photo 12, Appendix 3.

N. The frame assembly for the stop logs will have vertical channel guides running along the sides of the channel wall. The bottom of the channel, where the bottom stop log is seated, has a flush stainless steel frame for the rubber to seal. The frame will be set in grout.

O. The gate or gate assembly may be stored nearby and out of the channel. A moveable storage rack would be furnished for convenience.

P. The log sections will be stored in the existing nearby storage unit. A concrete sidewalk will be installed from the existing path leading to the pedestrian bridge to the new spill gate location.

Q. A concrete bridge will be furnished over the gate assembly for easy installation.

The bridge will be painted similar to the pedestrian bridge seen in photo 5, appendix 3. The railing would be metal, similar to the railings seen in photo 11, appendix 3, a channel cover located up stream on the Meyer Street Channel. The bridge would have a grated metal cover opening in the middle, over the gate frame which can be removed during spill gate installation.

JCCA 14790-1 Page 1.4 Section 1.0

Section 2.0 Appendices

2.1 Annotated 95% Review Comments

See Appendix 1.

2.2 Cost Estimate

See Appendix 2 for Cost Estimate. The maximum construction cost is limited to

$94,000. Currently our estimate including 10% contingency is $87,032.

We will modify the design as required to stay below the program amount.

2.3 Site Photographs

See Appendix 3.

2.4 3-Dimensional Renderings of New Spill Gate

See Appendix 4.

2.5 Specifications

See Appendix 5 for Specification Index. Edited UFGS specifications will be provided with the next submittal.

2.6 Stop Logs Data Sheets

See Appendix 6 for data on the spill control gate to be installed.

JCCA 14790-1 Page 2.1 Section 2.0 Appendices

JCCA 14790-1 Appendix 3 Site Photographs

APPENDIX 3

SITE PHOTOGRAPHS

Photo 1 – Meyer Street Channel east of pedestrian bridge, facing west

Photo 2 – Meyer Street Channel east of Pedestrian Bridge, facing east towards security grate

Photo 3 – Meyer Street Channel west of pedestrian bridge, facing east

Photo 4 – Meyer Street Channel west of pedestrian bridge, facing west

Photo 5 – Meyer Street Channel pedestrian bridge

Photo 6 – Meyer Street Channel pedestrian bridge

Photo 7 – Meyer Street Channel pedestrian bridge

Photo 8 – Meyer Street Channel facing east

Photo 9 – Meyer Street Channel facing east

Photo 10 – Meyer Street and Dekay Ave

Photo 11 – Meyer Street Channel West of Dekay Ave

Photo 12 – Existing Vertical Lift gate

Photo 13 – Existing Vertical Lift gate

Photo 14 – Existing Vertical Lift gate

JCCA 14790-1 Appendix 4 3-Dimensional Renderings of New Spill Gate

APPENDIX 4

3-DIMENSIONAL RENDERINGS OF NEW

SPILL GATE

JCCA 14790-1 Appendix 5 Stop Log Type Spill Gate Data Sheets

APPENDIX 5

STOP LOG TYPE SPILL GATE DATA

SHEETS

Rodney Hunt Aluminum Stop Logs

Stop logs have been used for many years for level and flow control in open channel flow. Because of its low weight and ease of handling, aluminum is the most commonly used material for stop logs.

Stainless steel stop logs are also available.

A resilient seal is placed along the bottom of each stop log. If low leakage is a requirement, additional seals are placed in the guides for their full length. The guides are mounted on the face of the concrete or embedded in the concrete wal ls.

Guides should be aluminum, but are also available in stainless steel or cast iron.

Stop logs are normally put in place using a stop log lifting device and an overhead crane. A latching lever on the lifting device is provided to engage or disengage the stop logs.

Extruded aluminum stop logs provide long life and easy handling.

Water level can be controlled by adding to, or deducting from, the number of logs used.

Stop log lifting device available far ease of handling

Stop Logs

10”

4”

Leveling foot each end of log

Aluminum lifting bar

Stop log

Neoprene invert seal

Fill box-out with grout at installation

PRESSURE

10”

4”

Extruded aluminum guide

Neoprene side seal on one side or both

Stop Log Lifting Device

Aluminum Stop Log

Aluminum stop logs with extruded aluminum guides, shown here with the lifting device used to install and remove the logs.

Fill box-out with grout at installation

PRESSURE

TOP CROSS

SECTION

**Note: Other equivalent/similar stop log brands can be used.

JCCA 14790-1 Appendix 6 Structural Calculations

APPENDIX 6

STRUCTURAL CALCULATIONS

2/13/2015

AFRC

March A.R.B

California

STRUCTURAL CALCULATIONS

For

Spill Control Gate – Meyer St. Channel

J. C. Chang & Associates, Inc.

Engineers Architects Planners 385 Van Ness Way, Suite 208

Torrance, CA 90501 Tel: (310) 212-7644 Fax: (310) 212-5272

2/13/2015

JCCA Page (i)

Project Name: Spill Control Gate Description:

Structural design criteria.

1. Code: CBC 2013

2. Design loads -- Chapter 16:

Bridge Live Load = 100 psf

3. Foundations - Chapter 18.

Soils Report: CBC table 1806.2 Soil Bearing: 1,500 psf @ 12” depth.

4. Concrete - Chapter 19.

Foundations: F’c = 3,000 psi. Rebar: grade 60.

Design Notes:

Description Index Pages

Bridge slab 1 .

JCCA Rect. Section ACI 318 PROJECT: March AFB Bldg: Channel BY: JMD

9:57 AM 2/11/15

Criteria: F'c (ksi) = 3 Min As: 200/Fy = 0.0033 eu = 0.003 Fy (ksi) = 60 3* Fc/Fy = 0.0027 ey = 0.004

= 0.9 or 1.33xAs required per = 0.85 but not less than =

Design: Bridge Slab Design: Channel wall Design:

& slab

Mu (ft-kip) = 2.24 Mu (ft-kip) = 2.06 Mu (ft-kip) = b (in) = 12 b (in) = 12 b (in) = d (in) = 6 d (in) = 8 d (in) =

Fy (ksi) = 60 Fy (ksi) = 60 Fy (ksi) = 60 Ku = 62 Ku = 32 Ku =

Reqd. = 0.0012 Reqd. = 0.0006 Reqd. = Govern = 0.0016 Govern = 0.0008 Govern = au = 4.438 au = 4.468 au = As (in^2) = 0.112 As (in^2) = 0.077 As (in^2) =

Use #4 @ 9" Use #4 @ 15"