B08_Attachment_09_140P8423R0006_Spec_012700_19May2023_0001.pdf

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Rehabilitate Lagoon Creek Rest Area, NPS-REDW
Solicitation number
140P8423R0006
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This document defines the contract line items for a federal contract to rehabilitate a rest area in Redwood National and State Parks. The contract includes 38 line items for various construction and site work tasks such as removing existing pavement and structures, excavation and grading, installing new aggregate base, asphalt paving, concrete curbs and sidewalks, drainage features including culverts and inlets, erosion control measures, electrical work including replacing well equipment, and pavement markings. Deliverables are identified as lump sum, linear or square foot measurements, with responses due by May 10, 2023 and work expected to be complete by Fall 2023.

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REDW 204783

AMENDMENT 0001

01 27 00 - 1

DEFINITION OF CONTRACT LINE ITEMS

SECTION 01 27 00 – DEFINITION OF CONTRACT LINE ITEMS

PART 1 - GENERAL

1.1 SUMMARY

1. Section explains in general, what is and is not included in a contract line item, and limits or cut-off points where one item ends and another begins.

2. If no contract line item exists for a portion of work, include costs in a related item.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1 REFERENCE SPECIFICATIONS

Caltrans Standard Specifications 2022, Division II through XI, and Definitions Section

WebLink: 2022 Standard Plans, Standard Specifications, and Contract Item Codes | Caltrans

It is the intent of this project to utilize the technical aspects of the Caltrans specifications only.

All measurement and payment references are not applicable. References to warranty requirements are also not applicable.

3.2 BASIS FOR MEASUREMENT AND PAYMENT

Measurement and Payment will be made for only those items included in the Proposal or Contract Change Order(s).

A. All measurement for payment will be for completed work performed according to

Contract Drawings and Specifications. The Owner shall measure all work according to the methods outlined below.

B. Payment for any item is full compensation for furnishing all labor, materials and equipment required to provide a complete and operable item of the work. Any work or material paid for under one item will not be paid for under another item.

3.3 PLAN QUANTITY

Items noted as Plan Quantity and denoted as (P), are items where approximate quantities have been determined, but where the quantity will not be measured in the field.

01 27 00 - 2

The difference between Lump Sum and Plan Quantity is: Plan Quantity has a specific Basis of Payment, but will not be overrun or underrun unless the item has been affected by a related contract modification. In other words, the quantity shown in the contract documents shall be the quantity for which payment is made.

It shall be the responsibility of the Contractor to verify the accuracy of the listed quantities.

3.4 LIST OF CONTRACT LINE ITEMS

1. Contract Line Item Number 001: Mobilization & Demobilization

A. Mobilization and Demobilization shall consist of preparatory work and operations for all items under the contract, including, but not limited to those necessary for:

i. The movement of personnel, equipment, supplies, and incidentals to the project site,

ii. The establishment of all offices, buildings, and other facilities necessary for work on the projects, and

iii. All other work or operations which shall be performed or costs incurred prior to beginning work on the various items on the project site.

B. Mobilization shall include bonding and permitting.

C. Nothing herein is to be construed to limit or preclude partial payments otherwise provided for by the contract.

D. This item shall not exceed 20% of the total bid price.

E. Measure and payment for Mobilization and Demobilization shall be on a Lump Sum basis.

No more than 75% of this pay item shall be paid until the project is substantially complete and major equipment has been demobilized off-site.

2. Contract Line Item Number 002: Remove Asphalt Pavement

A. This item consists of removing and disposing of existing asphalt pavement as shown in the plans.

B. Measurement and payment for Remove Asphalt Pavement shall be on a square yard basis.

3. Contract Line Item Number 003: Remove Asphalt Curb

A. This item consists of removing and disposing of existing asphalt curbs as shown in the

B. Measurement and payment for Remove Asphalt Curb shall be on a liner foot basis.

4. Contract Line Item Number 004: Remove Culverts - 30”

A. This item consists of removing and disposing of existing culverts as shown in the plans.

B. Measurement and payment for Remove Culverts - 30” shall be on a linear foot basis.

5. Contract Line Item Number 005: Remove Drain Inlets

A. This item consists of removing and disposing of existing culverts as shown in the plans.

B. Measurement and payment for Remove Drain Inlets shall be on a per each basis.

01 27 00 - 3

6. Contract Line Item Number 006: Remove Storm Sewer

A. This item consists of removing and disposing of existing storm sewer as shown in the plans.

B. Measurement and payment for Remove Storm Sewer shall be on a linear foot basis.

7. Contract Line Item Number 007: Remove Signs

A. This item consists of removing and disposing of existing signs as shown in the plans.

B. This item shall also include all other incidental removals not shown in the plans.

C. Measurement and payment for Remove Signs shall be on a lump sum basis.

8. Contract Line Item Number 008: Clearing & Grubbing

A. Clearing and Grubbing shall be according to Caltrans Specification 17 except as supplemented in this section.

B. Clear and Grub to the minimal extent required for construction.

C. On site burning shall not be allowed.

D. Cleared material shall be salvaged, ground, and spread over the reclaimed area on the south end of the project as an erosion control measure.

E. Measurement and payment for Clearing and Grubbing shall be on a lump sum basis.

9. Contract Line Item Number 009: Roadway Excavation (P)

A. Roadway Excavation shall be according to Caltrans Specification 19, except as

B. All excavation shall be considered roadway excavation.

C. All excavated material shall be either reused or disposed of on site.

D. The quantity listed in the proposal does not account for recycled aggregate.

E. Measurement and payment for Roadway Excavation shall be on a Plan cubic yard basis.

10. Contract Line Item Number 010: Compaction (P)

A. Compact subgrade according to Caltrans Section 19.5. Compact to 95% relative compaction.

B. Extent of compaction shall extend to all proposed pavements and curb, and need not extend beyond those limits.

C. It is likely that soils under existing pavements are already sufficiently compacted.

D. Test in accordance with Caltrans California Test 231 and Test 216. Contractor shall retain the services of an independent professional testing company. Test results shall be provided to the Engineer.

E. Measurement and payment for Compaction shall be on a plan square yard basis.

11. Contract Line Item Number 011: Imported Topsoil

A. Imported Topsoil shall be according to Caltrans Specification 21, except as supplemented in this section.

B. Spread Imported Topsoil over the reclaimed area on the southeast side to a depth of 4 inches.

C. Submit topsoil source.

D. Measurement and payment for Imported Topsoil shall be on cubic yard Basis.

01 27 00 - 4

12. Contract Line Item Number 012: Aggregate Base

A. Aggregate Base shall be according to Caltrans Specification 26, except as supplemented in this section.

B. Aggregate Base gradation may be Class 2 or Class 3 material.

C. Existing Aggregate Base shall be recycled to the extent possible.

D. Measurement and payment for Aggregate Base shall be on an in-place compacted cubic yard basis. Contractor shall provide weight tickets.

13. Contract Line Item Number 013: Concrete Curb and Gutter Type A2-6

A. Concrete Curb and Gutter shall be according to Caltrans Specification 73, except as

B. Concrete must have a minimum compressive strength of 3500 psi at 28 days. Size of aggregate must not exceed 1-1/2 inches. Submit copies of certified delivery tickets for all concrete usedin the construction.

C. Use concrete mixtures that have an air content by volume of concrete of 5 to 7 percent, based on measurements made immediately after discharge from the mixer.

D. Use concrete with a slump of 3 inches plus or minus 1 inch forhand placed concrete or 1 inch plus or minus 1/2 inch for slip formed concrete.

E. Use white pigmented membrane-forming curing compound conforming toASTM C309, Type 2.

F. Referenced Standard Plans include A78A.

G. Measurement and payment for Concrete Curb and Gutter shall be on a liner foot basis.

14. Contract Line Item Number 014: Concrete Curb and Gutter Type D-6

A. Concrete Curb and Gutter shall be according to Caltrans Specification 73, except as

B. Concrete must have a minimum compressive strength of 3500 psi at 28 days. Size of aggregate must not exceed 1-1/2 inches. Submit copies of certified delivery tickets for all concrete used in the construction.

C. Use concrete mixtures that have an air content by volume of concrete of 5 to 7 percent, based on measurements made immediately after discharge from the mixer.

D. Use concrete with a slump of 3 inches plus or minus 1 inch for hand placed concrete or 1 inch plus or minus 1/2 inch for slip formed concrete.

E. Use white pigmented membrane-forming curing compound conforming to ASTM C309, Type 2.

F. Referenced Standard Plans include A78A.

G. Measurement and payment for Concrete Curb and Gutter shall be on a liner foot basis.

15. Contract Line Item Number 015: Geotextile

A. Geotextile shall be according to Caltrans Specification 96 except as supplemented in this section.

B. Geotextile shall be subgrade enhancement geotextile Class A1 or B1. Measurement and payment for Geotextile shall be on a square yard basis. Measurement shall be according to a flat projection of neat lines of pavement.

01 27 00 - 5

16. Contract Line Item Number 016: HMA Pavement – Non Wear Course

A. HMA Pavement shall be according to Caltrans Specification 39 except as supplemented in

B. Caltrans Type A, Binder PG 64-16.

C. Measurement and payment for HMA Pavement – Base Course shall be on a per ton basis measured to the nearest ton.

17. Contract Line Item Number 017: HMA Pavement – Wear Course

A. HMA Pavement shall be according to Caltrans Specification 39 except as supplemented in

B. Caltrans Type A, Binder PG 64-16.

C. Measurement and payment for HMA Pavement – Wear Course shall be on a per ton basis measured to the nearest ton.

18. Contract Line Item Number 018: Concrete Median

A. Concrete Median shall be according to Caltrans Specification 73, except as supplemented in this section.

B. Concrete must have a minimum compressive strength of 3500 psi at 28 days. Size of aggregate must not exceed 1-1/2 inches. Submit copies of certified delivery tickets for all concrete used in the construction.

C. Use concrete mixtures that have an air content by volume of concrete of 5 to 7 percent, based on measurements made immediately after discharge from the mixer.

D. Use concrete with a slump of 3 inches plus or minus 1 inch for hand placed concrete or 1 inch plus or minus 1/2 inch for slip formed concrete.

E. Use white pigmented membrane-forming curing compound conforming to ASTM C309, Type 2.

F. Take a minimum of one slump, air, and compressive strength, unless pour occurs over multiple days. If pour takes multiple days, take on of each test on each day.

G. Measurement and payment for Concrete Median shall be on a square foot basis.

19. Contract Line Item Number 019: Concrete Sidewalk

A. Concrete Sidewalk shall be according to Caltrans Specification 73, except as

B. Concrete must have a minimum compressive strength of 3500 psi at 28 days. Size of aggregate must not exceed 1-1/2 inches. Submit copies of certified delivery tickets for all concrete used in the construction.

C. Use concrete mixtures that have an air content by volume of concrete of 5 to 7 percent, based on measurements made immediately after discharge from the mixer.

D. Use concrete with a slump of 3 inches plus or minus 1 inch for hand placed concrete or 1 inch plus or minus 1/2 inch for slip formed concrete.

E. Use white pigmented membrane-forming curing compound conforming to ASTM C309, Type 2.

F. Contraction joints must be planned to align with curb joints per Caltrans specifications.

Average curb joint spacing is 20’. Average sidewalk contraction joint spacing shall be 5’

01 27 00 - 6 for the typical 6’ wide sidewalk. Maximum joint spacing shall be 8’. Contractor shall submit a joint plan for sidewalks prior to pouring.

G. Take a minimum of one slump, air, and compressive strength, unless pour occurs over multiple days. If pour takes multiple days, take on of each test on each day.

H. This pay item includes sidewalk associated with all accessibility ramps.

I. Measurement and payment for Concrete Sidewalk shall be on a square yard basis.

20. Contract Line Item Number 020: Accessible Curb Ramps

A. This item shall include constructing the accessible curb ramps as shown in the plans. The primary intent of this item is to cover the extra work required to form and set accessible ramps, including the truncated domes, within the sidewalk.

B. This item also includes furnishing and install accessible parking signs as indicated in the plans.

C. This item does not include concrete required to construct the sidewalk, as that is measured and paid under the sidewalk line item. This item does not include striping.

D. Referenced Standard Plans include A88A, A90, and RS5.

E. Measurement and payment for Accessible Curb Ramps shall be on a per each basis.

21. Contract Line Item Number 021: Construct Railings

A. This item shall include furnishing and installing Railings as shown in the plans. Railings include ramp handrails and safety rails.

B. Measurement and payment for Construct Railings shall be on a lump sum basis.

22. Contract Line Item Number 022: Removable Bollards

C. This item shall include furnishing and installing Removable Bollards as shown in the

D. Bollards shall be manufactured units consisting of a bollard post and permanent embedment sleeve. Manufacturer shall be Postguard or equal. Submit product information. Install according to manufacturer’s recommendations.

E. Measurement and payment for Removable Bollards shall be on a per each basis.

23. Contract Line Item Number 023: Sign Bases

A. This item shall include constructing permanent Sign Bases as shown in the plans.

B. Sign bases shall be from Vacker Sign https://vackersign.com or preapproved equal.

Signs shall be of the type identified in the plans. All signs shall be direct bury mount, installed according to the manufacturer. Color shall be standard black. Submit product information.

C. Measurement and payment for Sign Bases shall be on a lump sum basis.

24. Contract Line Item Number 024: Drain Inlets

A. Drain Inlets shall be according to Caltrans Specification 51 except as supplemented in

B. Drain inlets shall be precast.

01 27 00 - 7

C. Referenced Standard Plans include D71, D73E, D73F, D73,GD74, and D77.

D. Must include stamp or medallion per standard plan D71.

E. Measurement and payment for Drain Inlets shall be on a per each basis.

25. Contract Line Item Number 025: Storm Sewer – 12”

A. This item shall include furnishing and installing Storm Sewer as shown in the plans.

Storm Sewer shall be according to Caltrans Specification 65 (Concrete Pipe), minimum Class IV.

B. Measurement and payment for Storm Sewer – 12” shall be on a installed linear foot basis measured from center of structure.

26. Contract Line Item Number 026: Drainage Matting

A. This item shall include furnishing and installing Drainage Matting as shown in the plans.

B. Erosion Matting - Stock shall be Flexamat Plus UV-T or equal.

C. Submit product information.

D. Install according to manufacturer’s recommendations.

E. Measurement and payment for Drainage Matting shall be on an installed square yard basis, measured to the nearest square yard.

27. Contract Line Item Number 027: Box Culvert

A. This item shall include furnishing and installing precast Box Culvert as shown in the plans. Box Culvert shall be according to Caltrans Specification 51.

B. The Box Culvert shall consist of three sections, including the barrel section, and tapered end sections.

C. Include 24” min cutoff wall and parapet.

D. Basis of design is Caltrans Standard Plan D83 with Type E wingwall, which are cast in place. Other variations will be considered to allow for flexibility and ease of construction. It is preferred to utilize precast elements only.

E. Measurement and payment for Box Culvert shall be on a lump sum basis.

28. Contract Line Item Number 028: Remove and Replace 2” Water Main

A. This item shall include removing and replacing the 2” water main as shown in the plans.

B. Remove and replace the existing water main from the well to the restroom facility. New water main shall be 2” HDPE DR-11 pipe, ASTM D 3350.

C. Construct according to AWWA standards.

D. Submit water main product information.

E. Measurement and payment for Remove and Replace 2” water main shall be on a lump sum basis.

29. Contract Line Item Number 029: Remove and Replace Well Circuit

A. This item shall include removing the existing well circuit, underground conduit, and furnishing and installing a new well circuit and conduit, as shown in the plans. Submit product information.

01 27 00 - 8

B. Electrical work shall be performed by a licensed electrician. Construct according to all applicable NEC standards.

C. Measurement and payment for Remove & Replace Well Circuit shall be on a lump sum basis.

30. Contract Line Item Number 030: Remove and Replace Circuit Panel

A. This item shall include removing the existing well circuit, underground conduit, and circuit panel and furnishing and installing a new well circuit, conduit, and 200A circuit panel as shown in the plans.

B. New panel shall be 120/240V, 2-pole, Square-D, Siemens, or equal. Panel shall be installed in a NEMA 3R lockable enclosure. Submit product information.

C. Electrical work shall be performed by a licensed electrician. Construct according to all applicable NEC standards.

D. Measurement and payment for Remove and Replace Circuit Panel shall be on a lump sum basis as shown in the plan.

31. Contract Line Item Number 031: Rolled Erosion Control Product

A. This item shall include furnishing and installing Rolled Erosion Control Product (RECP) as shown in the plans.

B. RECP shall be Rolanka BioD-Mat 40 or equal.

C. Referenced Standard Plans include T54.

D. Submit product information.

E. Measurement and payment for Rolled Erosion Control Product shall be on a square yard

32. Contract Line Item Number 032: SWPPP Management

A. This item shall include managing the SWPPP in accordance with the plans and specifications. In general, this line item is intended to cover all activities that are typically conducted by a QSP. These include, but are not limited to, inspections, record keeping, preparing REAPS, documenting, reporting, and sampling. This line item is not intended to cover the construction of BMPs as those are covered elsewhere.

B. For the purpose of preparing a proposal, the contractor shall assume up to two rain events that could trigger the need for a REAP and sampling.

C. Measurement and payment for SWPPP Management shall be on a lump sum basis.

33. Contract Line Item Number 033: Street Lights

A. This item shall consist of furnishing and installing solar powered light poles as shown in the plans.

B. Lighting shall be pole mounted.

C. Lighting shall be solar powered LED, Dark-Sky approved.

D. eLEDing 2400 Lumens Dark Sky 3000K (EE815W-AI15-3000K) or equal E. Submit lighting product data.

F. Install according to manufacturer’s recommendations.

G. Measurement and payment for Street Lights shall be on a per each basis.

01 27 00 - 9

34. Contract Line Item Number 034: Pavement Markings

A. Pavement Markings shall be according to Caltrans Section 84 except as supplemented in

B. Measurement and payment for Pavement Marking shall be on a lump sum basis.

35. Contract Line Item Number 035: Silt Fence

A. This item shall include furnishing and installing Silt Fence as shown in the plans.

B. Referenced Standard Plans include T51.

C. Measurement and payment for Silt Fence shall be on a linear foot basis.

36. Contract Line Item Number 036: Inlet Protection

A. This item shall include furnishing and installing inlet protection as shown in the plans.

B. Referenced Standard Plans include T61, T62, T63, T64. Contractor may choose preferred method.

C. Measurement and payment for Inlet Protection shall be on a per each basis.

37. Contract Line Item Number 037: Fiber Rolls

A. This item shall include furnishing and installing Fiber Rolls as shown in the plans.

B. Referenced Standard Plans include T57.

C. Measurement and payment for Fiber Rolls shall be on a linear foot basis.

38. Contract Line Item Number 038: Misc. BMPs

A. This item shall include furnishing and installing Miscellaneous BMPs as shown in the plans, where bid items are not provided.

B. The need for Misc. BMPs may not be required. In general, the need for many of these

BMPs may be avoided through scheduling. For example, if paving is conducted soon after placing curb, there will likely not be the need for ditch checks. Similarly, if work is done during dry conditions, it is not envisioned that a stabilized entrance will be needed.

C. Referenced Standard Plans include, but are not limited to, T53, T58, T59.

D. Measurement and payment for Rolled Erosion Control Product shall be on a lump sum

END OF SECTION 01 27 00

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