California Department of Transportation
 

Frequently Asked Questions

General Questions and Answers

1. Padlocks

Do we need to add an SSP to direct the Contractor to supply and install padlocks?

No. It is the contractor’s responsibility to secure the job site. This includes securing all equipment. Section 5 of the Standard Specifications states:

37  MAINTENANCE AND PROTECTION
5-1.37A  General
Maintain and protect work until the Department has granted relief from maintenance or accepted the Contract.

2. Growth Regulators

Where did the specifications for growth regulators go?

Growth regulators have been deleted from our specifications. They were not being used by our Contractors.

3. Recycled Water Warning Signs

Where did the specifications and bid item for Recycled Water Warning Signs go?

The bid item for Recycled Water Warning Signs was deleted and the specifications for these signs were moved to Irrigation “General”. The labor and materials for these signs is part of the overhead cost for irrigation because they are included in the "General" section of Irrigation.

4. Maintenance Vehicle Pullouts

Where did the specifications for Maintenance Vehicle Pullouts (MVPs) go?

For specifications for Maintenance Vehicle Pullouts, please read Revised Standard Specifications Section 39 Hot Mix Asphalt, and also Standard Special Provision (SSP) 39-1.03L. Remember, this SSP is only intended to be used for projects that do not already include other asphalt work. It the project already includes other roadway asphalt work, then you should simply extend that asphalt work into the areas that include Maintenance Vehicle Pullouts.

Roadside Clearing

1. Specifying Weed Control

How do we now specify weed control work (for Roadside Clearing and Plant Establishment)?

Previously SSP 20-7 was edited to direct the Contractor how to control weeds for Roadside Clearing, and SSP 20-9 was used to indicate how to control weeds during Plant Establishment. With the new July 2013 RSS, how do we specify weed control for Roadside Clearing and Plant Establishment?

In the 2013 Revised Standard Specifications, the plant establishment specification (Section 20-4) says to control weeds per Section 20-1.03C(3). These weed control requirements apply to both initial and ongoing Roadside Clearing, as well as for the Plant Establishment Period. To specify detailed weed control for initial and ongoing roadside clearing, and plant establishment, use the new SSP 20-1.03C as necessary to describe the required work. This SSP will be on the OE server effective November 2013, so no nonstandard approval will be required.

2. Weed Control Without Pesticides

My project doesn't allow the use of pesticides. How do I edit the weed control specifications and not trigger a non-standard specification request?

Project specific weed control methods are specified in SSP 20-1.03C. If you would like to specify weed control that does not use pesticides, follow the instructions in the new SSP 20-1.03C. Use of this NSSP will receive blanket concurrence from HQ LAP as long as your edits follow the specification instructions.

Previously SSP 20-7 was edited to direct the Contractor how to control weeds for Roadside Clearing, and SSP 20-9 was used to indicate how to control weeds during Plant Establishment. With the new July 2013 RSS, how do we specify weed control for Roadside Clearing and Plant Establishment?

3. Trash and Weed Control - Timing

What happened to the requirement in the 2010 Standard Specifications, Section 20-1.01A Summary, par. 3: "Immediately before performing any construction activity, remove weeds, trash and debris within the construction area"? The RSS does not indicate a time-frame (“immediately before performing any construction activity”) as to when the Contractor is required to do this work (the removal of weeds, trash and debris)

Both the removal and timing of removal of weeds, trash, and debris is already covered in 2010 RSS Section 5-1.31 "Job Site Appearance" as noted in the excerpt below. Note that disposal from clearing and grubbing is immediate. If stockpiling is required the disposal is required weekly. Finally, construction debris are required to be picked up daily.

SECTION 5 CONTROL OF WORK

5-1.31 JOB SITE APPEARANCE

Keep the job site neat. In areas visible to the public:

1. If practicable, dispose of debris removed during clearing and grubbing concurrently with its removal. If
stockpiling is necessary, dispose of weekly.
2. Furnish trash bins for debris from construction. Place debris in trash bins daily.

 

4. HOW DO I Specify Existing TREES (Or other existing plants) TO BE REMOVED?

FOR ROADWAY CONSTRUCTION PROJECTS

If the tree is WITHIN the Clearing and Grubbing limits - it is covered under the Clearing and Grubbing SSPs and BEE's item and no indication on the project plans is necessary. If the tree is OUTSIDE the Clearing and Grubbing limits, removal technically is not covered by the Clear and Grub SSP or Bees item, so on the plans call out Remove Tree (Roadside Clearing) at each location or show a symbol in a legend. Identify the size of the tree. In the SSPs: No Roadside Clearing SSP is required (unless you have other Roadside Clearing work on the project) because the Standard Specs alone will cover the work. On the Bees: Roadside Clearing as "lump sum".

FOR HIGHWAY PLANTING PROJECTS

On the Plans: Call out Remove Tree (Roadside Clearing) at each location or show in a legend on the plans. In the SSPs: Use the standard Roadside Clearing SSP to describe your project's roadside clearing work. No nonstandard edits are required to the SSP to cover the tree removal as the Standard Specs detail the removal of tree roots below grade. On the Bees Estimate: Roadside Clearing as "lump sum".

 

Irrigation

1. TRENCHING

Do all trenches for irrigation supply lines and conduit require sand backfill?

The 2013 RSS may be interpreted to imply that all trenches are to receive sand backfill. Use NSSP 20-2.01C(2) to make it clear that sand backfill is only required where the trench is being placed in existing surfacing. Use of this NSSP will receive blanket concurrence from HQ LAP as long as your edits follow the specification instructions.

The following edit was made to the RSS in Section 20-2.01C(2) by DES/OE on November 15, 2013 to ensure proper cover over pipe.

Trenches for irrigation supply lines and conduits 2 2.5 inches or less in diameter must be a minimum of 12 inches below finished grade, measured from the top of the installed pipe.

2. Remove Irrigation Facilities

Where did Remove Irrigation Facilities go?

Remove Irrigation Facilities used to be in 2010 Standard Specifications Section 15-2.02L REMOVE EXISTING IRRIGATION FACILITIES. Remove Irrigation Facilities is still in 2010 Standard Specifications Section 15-2.02L. No SSP is necessary. Indicate irrigation facilities to be removed on the plans, and use the following bid item to invoke the work:

150685 Remove Irrigation Facilities

3. RELOCATE Irrigation Facilities

Where did Relocate Irrigation Facilities go?

Relocate Irrigation Facilities used to be in 2010 Standard Specifications Section 15-2.09D RELOCATE IRRIGATION FACILITIES. The July 2013 RSS deletes Section 15-2.09D, and creates three new sections:

20-2.02C(5) Relocate Back-flow Preventer Assemblies

Relocate back-flow preventer assembly as shown and install under section 20-2.03C.

20-2.02C(6) Relocate Water Meters

Relocate water meter as shown.

20-2.02C(7) Relocate Irrigation Controllers

Relocate irrigation controller as shown and install under section 20-2.07C

No SSP is necessary. Indicate facilities to be relocated on the plans.

Use the following bid items:

202028 Relocate Irrigation Controller
202026 Relocate Back-flow Preventer Assembly
202027 Relocate Water Meter

4. Salvage Irrigation Facilities

Where did Salvage Irrigation Facilities go?

Salvaging irrigation facilities is covered by the standard language in Section 15-2.03. No SSP is required. Indicate the items to be salvaged on the plans. Include the following bid item to invoke and pay for the work:

151251 Salvage Irrigation Facilities

5. Irrigation Functional Test

Where did the Irrigation Functional Test Requirements for RICS Controllers go?

Functional test requirements are now specified in the RSS in Section 20-1.01A. These requirements used to be limited to Remote Irrigation Control System (RICS) controllers, but now they apply to all irrigation controllers because they are all now required to be "smart" irrigation controllers.

20-1.01 GENERAL
20-1.01A Summary

Perform a functional test for each irrigation system under 20-2.01A(4)(d):

1. Before planting the plants
2. After planting the plants
3. Before the start of the plant establishment work

6. Controller Enclosure Cabinet Rain Sensors

How do I NOT specify a Rain Sensor on a controller enclosure cabinet?

The option to NOT include rain sensors on the cabinet was intentionally removed because the Model Water Efficiency Landscape Ordinance requires the use of Rain Sensors. In most cases, the best place for the sensor is going to be on the cabinet – that is why we made this the standard approach.

7. Manual Control Valves

How do I specify a Manual Control Valve?

Manual Control Valves were deleted in the RSS - since in most cases a Manual Control Valve is a Remote Control Valve without a solenoid. In a Cam Coupler Assembly, replace Manual Control Valves with a Ball Valve for pipes that are 2” or smaller in diameter, and Gate Valves for pipes that are 2-1/2” and larger in diameter. In general, Ball Valves are a better on/off valve than gate valves as they leak less than gate valves. However, using ball valves to suddenly shut off water on pipes that have high water flows may result in water hammer - so Gate Valves are the best solution in high flow situations.

8. BPAE Enclosure

How do we specify an unpainted stainless steel back-flow preventer enclosure?

Use paragraph 3 of SSP 20-2.03(b) to specify that stainless steel back-flow preventer enclosures are to be left unpainted.

9. Control and Neutral Conductors (CNC)

12-gauge Wire Between Valves and Controllers?

The 2010 version of the Standard Specifications specified that the conductors used to connect irrigation valves with the irrigation controller are to be 12-gauge. This same requirement for valve wire was included in the 2013 RSS version of the Standard Specifications. A number of Districts have said that 12-gauge valve wires are unnecessarily large for their irrigation systems. Districts that would like to use the old 2006 approach to wire sizing, should use the NSSP 20-2.05B. Use of this NSSP will receive blanket concurrence from HQ LAP as long as your edits follow the specification instructions.

Where did the Schedule of Values SSP for Control and Neutral Conductors (CNC) go?

This SSP was deleted because all of the requirements are covered under Standard Specification Section 9-1.16C Materials on Hand. Because of this Standard Specification, the Contractor can receive payment for materials provided but not incorporated into the work without adding the old SSP 20-3.01C(3) Control and Neutral Conductors Schedule of Values.

10. IRRIGATION Conduit (Formerly Known as Irrigation Crossover)

WSP Conduit Bid Item Wall Thickness Differs From the Specification

The wall thicknesses for each Welded Steel Pipe (WSP) Conduit bid item are included in the specification, so the redundant wall thicknesses will be deleted from the Bid Item List in the November 2013 update.

How I specify an Irrigation Conduit (Previously Know as Irrigation Crossover)?

“Irrigation Crossover” has been renamed "Irrigation Conduit" so the specification name better matches the bid item name . The Irrigation Conduit bid Item pays for the conduit only. Show the types and quantities of Irrigation Conduit on the Irrigation Conduit Quantity Table. See below regarding payment for waterline, and valve conductors (wires).

The waterline inside the Irrigation Conduit is paid for as the various sizes and types of Pipe Supply Line and should be included on the Irrigation Quantity sheets.

The wiring for valves (control and neutral conductors) and the conduit required for this work are paid for under the Control and Neutral Conductor bid item. In other words, the conduit for the valve wiring is "full-comped" into the price of the wire. Here is what the specifications say:

20-2.05C(3) In Conduits
Install conductors in electrical conduit if conductors are to be:
1. Surface mounted
2. Installed in or on structures
3. Installed under paved areas
4. Installed in irrigation conduits
5. Placed in concrete

How do I specify Schedule 40 Plastic Pipe Conduit on the Plans and in the Estimate?

The default 2010 specification approach is to to pay for Schedule 40 Plastic Pipe Conduit as regular Schedule 40 pipe. It seems that a better approach is to pay for Schedule 40 Plastic Pipe Conduit as Conduit. To do this, create a one time non-standard bid item such as "XXXXXX 8" Plastic Pipe Schedule 40 Conduit" to pay for this conduit and to invoke the specification. You will also need to insert NSSP 20-2.08D to delete the payment clause that typically pays for this conduit as plastic pipe supply line. Use of this NSSP will receive blanket concurrence from HQ LAP as long as your edits follow the specification instructions.

11. EXTEND IRRIGATION CROSSOVER

How do I now specify extending an existing irrigation crossover?

Extend Irrigation Crossover was deleted in the 2013 RSS. This work is now covered under regular Irrigation Crossover work – i.e. Irrigation Conduit. The work and the materials for extending an existing crossover are the same as installing a new crossover. Use the bid item for Irrigation Conduit and indicate the materials on the Irrigation

BITUMINOUS COATED CONDUIT

Where did Bituminous Coated Conduit go?

Deleted bid items and option to specify Bituminous Coated Steel Pipe Conduit. Bit coated steel pipe conduit is no longer allowed.

12. GALVANIZED STEEL PIPE CONDUIT

Where did Galvanized Steel Pipe Conduit go?

Deleted bid items and option to specify Galvanized Steel Pipe Conduit. Replaced with new and existing bid items for Welded Steel Pipe Conduit

13. IRRIGATION SLEEVE

Where did the specification for Irrigation Sleeve go?

The bid item and specifications for irrigation sleeve have been deleted. If you want an irrigation sleeve, specify irrigation conduit. Irrigation conduit specification was modified so that it works the same as the old sleeve specification (it is not required to be pressure checked).

14. Filter Assembly Unit (Now Drip valve assembly)

Where did the specification for Filter Assembly Unit go?

The specifications and bid item for Filter Assembly Unit have been renamed “Drip Valve Assembly”. The old Standard Plan detail for Valve Assembly Unit (VAU) has been renamed “Drip Valve Assembly”

15. WYE STRAINER (now Wye Strainer Assembly)

Where did the specifications for Wye Strainer go?

The bid item and specifications for Wye Strainer have been renamed to Wye Strainer Assembly to drive home the point that everything in the Wye Strainer Assembly is included in the payment for the assembly. the Standard Plan detail has also been renamed “Wye Strainer Assembly”.

16. VALVE ASSEMBLY UNIT (VAU)

Where did the specifications for VAU go?

The Valve Assembly Unit spec and bid item have been deleted. Use the bid item and specifications for Drip Valve Assembly.

17. Water Meters

Which Specification do I use?

There are three typical scenarios for water meter installation, and a different way of specifying and paying for each:

Option A

The Water Purveyor provides and installs the meter (hot tap and sanitize) and the Contractor coordinates and pays the Water Purveyor for their work from funds included in the bid item. Use SSP 20-2.12_X1 to describe this work and Bid Item 208304 Water Meter to pay for the work.

Option B

The Water Purveyor provides and installs the meter (hot tap, meter installation, and sanitation), and Caltrans just pays the Water Purveyor using State Furnished Material funds. Use SSP 20-2.12_X2 to describe the work, and provide for the required funds under State Furnished Materials in the estimate.

Option C

The Contractor installs the meter (hot tap and sanitize) per specifications and details provided by the water purveyor/utility company/city or county. Use non-standard specification NSSP 77-1 as a template to specify the Contractor installation of water meters in accordance with the local water purveyor's specifications and details. Edit to include local requirements. Include a one-time non-standard bid item to cover labor and materials required to complete the work.

18. PIPE

Where is the Bid Item for 2-1/2" Copper Pipe Supply Line?

A bid item for 2-1/2" Copper Pipe (Supply Line) will be added to the Bid Item List in November 2013 by DES/OE. In the meantime, create a one-time Bid Item to invoke this work. Here is a link to the current 2010 Bid Items

Where is the Bid Item for 5/8" Drip Irrigation Tubing?

A bid item for 5/8" Drip Irrigation Tubing will be added to the Bid Item List in November 2013 by DES/OE. In the meantime, create a one-time Bid Item to invoke this work. Here is a link to the current 2010 Bid Items

19. Back-flow Preventer Assembly Blanket

The Standard Specifications say that all Back-flow Preventer Assemblies include a blanket. How do I not specify a back-flow preventer blanket?

Use NSSP_20-2.03B to not require that back-flow preventer assemblies include blankets. Use of this NSSP will receive blanket concurrence from HQ LAP as long as your edits follow the specification instructions.

20. Existing Highway Irrigation Facilities

Where did the old specification requirements go regarding marking, and repair of damage to existing highway facilities?

The language about the repair of existing utilities was deleted (as part of the 2014 RSS update) because this work is covered more completely by the following Standard Specification sections:

5-1.36  PROPERTY AND FACILITY PRESERVATION
5-1.36A  General
Preserve property and facilities, including:
1.   Adjacent property
2.   Department's instrumentation
3.   ESAs
4.   Lands administered by other agencies
5.   Railroads and railroad equipment
6.   Roadside vegetation not to be removed
7.   Temporary work
8.   Utilities
9.   Waterways
10.  Survey monuments

Immediately report damage to the Engineer.

If you cause damage, you are responsible.

 

15  EXISTING FACILITIES
15-1  GENERAL

5-1.39  DAMAGE REPAIR AND RESTORATION
5-1.39A  General
Before Contract acceptance, restore damaged work to the same state of completion as before the damage. Restoration of damaged work includes restoration of erected false-work and form-work.

The Department does not adjust payment for repair or restoration that the Engineer determines was caused by your failure to construct the work under the Contract or protect the work.

 

15-1.01  GENERAL
Section 15-1 includes general specifications for performing work on existing facilities.

Wherever work requires removing materials, the work includes disposing of the materials unless salvaging or incorporating the materials into the final work is described.
Wherever work includes removing, salvaging, reconstructing, abandoning, destroying, modifying, resetting, relocating, or relaying, do not start such activities until the facility is no longer needed or not being used.

Portions of the existing facilities that are to remain in place must be protected, preserved, and maintained. If you damage a portion of the facility that is to remain in place, you must repair or replace the damaged facility. After the repair or replacement, the condition of the facility must be equal or better in quality than it was before beginning the work. Remove materials that are not repaired.

21. Testing of Existing Back-flow Preventers

Where are the new specifications located that cover testing existing back-flow preventers?

Existing BPAs are covered in the specs below.  This work is invoked and paid for by the Operate Existing Irrigation Facilities bid Item.

20-2.02  EXISTING IRRIGATION FACILITIES
20-2.02A General

20-2.02A(1)  Summary

Section 20-2.02 includes specifications for checking, testing, operating, replacing, and relocating existing irrigation facilities.

20-2.02A(2)  Definitions

Reserved

20-2.02A(3)  Submittals

Submit a list of irrigation system deficiencies within 7 days after checking the existing facilities.

20-2.02A(4)  Quality Control and Assurance

After irrigation facilities have been relocated, demonstrate in the presence of the Engineer that the relocated facilities function properly.
Certify each existing back-flow preventer under section 20-2.03A(4).

22. Testing of New Back-flow Preventers

Where are the new specifications located that cover the testing of new back-flow preventers?

New BPAs are covered in the specification section shown below.  Testing is included in the contract price for the new BPAs because it is included in the General section that describes all of the work that is included in providing and installing a new BPA..

20-2.03 BACKFLOW PREVENTER ASSEMBLIES
20-2.03A General

20-2.03A(1) Summary
Section 20-2.03 includes specifications for installing a back-flow preventer assembly.
20-2.03A(2) Definitions
Reserved
20-2.03A(3) Submittals
Reserved
20-2.03A(4) Quality Control and Assurance
Each back-flow preventer assembly must be certified by a back-flow preventer tester. The tester must have an active and valid certification from the water purveyor having jurisdiction.
If the local water purveyor does not have a certification program, the tester must be certified by AWWA or a nearby county with a certification program.
Notify the Engineer at least 5 business days before certifying back-flow preventer assembly.
Certify each back-flow preventer assembly annually and within 10 days before Contract acceptance.

22. Irrigation Controller Cabinet Requirements

Where are the new specifications located that cover the requirements for Irrigation Controllers and Irrigation Controller Enclosure Cabinets?

Irrigation Controller are covered under Section 20-2.07 and their installation must comply to section 86-3.04A.

 

Planting

1. Container Size

How do I specify container size for liner and plug plants.

The language that allows specification for the container size for liner and plug plans has been removed. How do I specify the container size for liner and plug plants?
Specify the container size for liner and plug plants on the plant legend – in the same way that you specify the container size for other plant material.

2. Organic Fertilizer

Where did the trade names go for Organic Fertilizer?

To avoid proprietary specification issues, the organic fertilizer specification was changed to a performance specification. The specifications now tell the Contractor what we want (NPK values) and longevity rather than name trade names.

3. Wildflowers

The specifications for wildflowers have been deleted. How do I now specify wildflowers?

To specify wildflowers use the hydroseed or dry seed specifications in Section 21 Erosion Control and use a wildflower seed mix rather than a traditional erosion control seed mix.

4. Turf

How do I specify seed species for Turf?

The fill-in blank for turf species (both seeded or sodded) was removed from the SSP. How do I now specify the seed species or varieties to be used for Turf? Specify the seed species to be used for seeded or sodded turf on the plant legend.

5. Change Order Work

How do I specify potential change order work such as the potential application of pre-emergent pesticide prior to the end of the job?

The project plans, specifications and bid items specify work – not potential work. Any work may be requested as change order work, but we do not specify potential work.

6. Cuttings And Fertilizer (Clarification)

How do I make it clear that I do NOT want fertilizer applied to all cuttings on the project?

There is no need to modify the specifications to change the amount or type of fertilizer applied to a cutting, liner, or seedling plants. Simply indicate the type and amount of fertilizer to be applied to these plants on the plant legend.

 

Plant Establishment

1. Plant Establishment Working Days

Previously the working days for the Plant Establishment period were specified in the Plant Establishment SSP. Where are the Plant Establishment days now specified?

As of July 2010 the working days for Plant Establishment is specified in the Notice to Bidders.

2. Final Application of Pesticide

Where did the language go that tells the Contractor that the RE may request a final application of pesticide during the Plant Establishment period?

This was deleted because it was a call to potential extra work and not a "biddable and buildable" specification. Our contract documents tell tell the Contractor what to do, or what not to do. Our contracts should not tell the Contractor what we MAY request as Change Order Work. If we want to implement this idea as a future improvement, then we ought to make it an project-specific SSP that allows the designer to require:

Apply pre-emergent between 40 and 50 working days before the completion of the plant establishment period. 

3. Different MOWING HEIGHTS (Planting Period vs Plant Establishment)

How do I change the mowing heights for sod that are specified in the 7th paragraph of 2010 RSS Section 20-3.03C(3)(e)?

Use Paragraph 6 of SSP 20-3.03C(3) to edit the mowing heights:

6. Use to change the height for mowing sod. Edit as required.
Replace the 7th paragraph in section 20-3.03C(3)(e) of the RSS for section 20 with: Mow sod when it has reached a height of ___ inches. Mow sod to a height of ___ inches.

The required mowing height is set in the "Roadside Clearing Weed Control" section. Mowing to control weeds during the Plant Establishment Period following all the rules established in Roadside Clearing. If you want to change the mowing height for weeds during Roadside Clearing or during Plant Establishment, an NSSP will be required.

Landscape Elements

1. Gravel Mulch And Decomposed Granite (Now Require a Detail For Excavation Depth)

How does the Contractor determine the required depth of Gravel Mulch and Decomposed Granite?

The 2010 specifications do not provide for specifying the depth of gravel mulch, decomposed granite, or the depth of any sub-base. If you specify gravel mulch or decomposed granite on a project, you must include a detail that shows the depth of gravel mulch or decomposed granite. You should also show whether or not these materials are placed "on-grade" or in an excavated area.

2. Decomposed Granite on Grade

How do I specify Decomposed Granite that is to be placed on grade? In other words, i want to specify Decomposed Granite that does not require excavation.

Section 20-5.03A(3)(b) Earthwork of the 2010 RSS states "Excavate areas to receive inert ground cover or mulch to the depth shown." To have the materials placed directly on grade with no excavation, you must draw a detail that shows the decomposed granite being applied directly on grade. Don't forget to also draw and provide a bid item for edging.

3. Wood Mulch on Grade

How do I specify Wood Mulch that is to be placed on grade? In other words, i want to specify Wood Mulch that does not require excavation.

Section 20-5.03A(3)(b) Earthwork of the 2010 RSS states "Excavate areas to receive inert ground cover or mulch to the depth shown." To have the materials placed directly on grade with no excavation, you must draw a detail that shows the decomposed granite being applied directly on grade, OR you can simply use NSSP_20-5.03E.

4. Wood Mulch Without Granular Pre-emergent

How do I specify Wood Mulch that is to NOT to include granular pre-emergent?

Section 20-5.03A(3)(c) Treatment of Soil makes a general statement that applies to ALL Section 20-5 Landscape Elements. This general statement says "After compaction, apply soil sterilant at the maximum label rate." Use NSSP_20-5.03E to override this global requirement. Use of this NSSP will receive blanket concurrence from HQ LAP as long as your edits follow the specification instructions.

5. Aggregate Base Under Gravel Mulch

The language to specify the use of aggregate base under gravel mulch has been deleted. How do I specify the use of aggregate base under gravel mulch?

This option has been deleted. Gravel mulch is intended to be a used as a mulch product - on top of the finished grade with no subsurface excavation required.

6. Rock Blanket (Depth of Concrete Base)

Is there a detail that shows more clearly the minimum depth of concrete beneath Rock Blanket?

This CAD detail clearly shows more clearly the 1-inch minimum depth dimension under the rocks in the rock blanket. Include this detail in your project plans if you feel that the 2010 Standard Plan is unclear.

7. Loose Rock Blanket on Grade

Where did the specification language go that allowed the placement of large loose rock on grade?

Placing loose rock cobble on grade is now specified and approved on a project specific basis. If you want to place loose rock blanket on grade, submit a Nonstandard Specification request to your District Landscape Coordinator for review. Guidance on the proper placement of Rock Blanket is available at this web address.

8. Stain

Where are the specifications for Rock Stain?

Use the specifications in the Standard Specifications Section 59-12, and also SSP 59-12.

Where are the specifications for Concrete Stain?

Use the specifications in the Standard Specifications Section 59-7, and also SSP 59-7.

Where are the specifications for Staining Galvanized Surfaces?

Use the specifications in the Standard Specifications Section 59-11, and also SSP 59-11.

 

Standard Plans and Details

1. Dashed Lines

The Standard Plans show dashed lines for some items of work that should be solid. How do I fix this?

The linestyles for the Landscape Standard Plans will be corrected after the publication of the 2015 Standards in July of 2015

2. Irrigation Crossover Versus Conduit

Standard Plan H2 includes a symbol for Irrigation Crossover, when the correct term to use should be Irrigation Conduit. When will this be corrected?

The Irrigation Crossover description will be changed to Irrigation Conduit automatically by DES/OE in November of 2013.

3. Swing Joint AS Part of POP-up Sprinkler Assembly

I want to use a swing joint as part of a Pop-Up Sprinkler Assembly. How do I do this?

The Standard Specification definition for pop-up sprinkler assembly will be updated by DES/OE in November 2013 to include a swing joint. If you want a pop-up sprinkler assembly to include a swing joint, add a project-specific detail to your project for Riser Sprinkler Assembly Type VI. Click here for a sample CAD detail to get started.