012200 - 1

UNIT PRICES

Addendum No. 1

SECTION 012200

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and other Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section includes administrative and procedural requirements for unit prices.

B. Related Requirements:

1. Section 012600 "Contract Modification Procedures" for procedures for submitting and handling Change Orders.

2. Section 014000 "Quality Requirements" for general testing and inspecting requirements.

1.3 DEFINITIONS

A. Unit price is an amount incorporated in the Agreement, applicable during the duration of the Work as a price per unit of measurement for materials, equipment, or services, or a portion of the Work, added to or deducted from the Contract Sum by appropriate modification, if the scope of Work or estimated quantities of Work required by the Contract Documents are increased or decreased.

1.4 PROCEDURES

A. Unit prices include all necessary material, plus cost for delivery, installation, insurance, applicable taxes, overhead, and profit.

B. Measurement and Payment: See individual Specification Sections for work that requires establishment of unit prices. Methods of measurement and payment for unit prices are specified in those Sections.

C. Owner reserves the right to reject Contractor's measurement of work-in-place that involves use of established unit prices and to have this work measured, at Owner's expense, by an independent surveyor acceptable to Contractor.

D. List of Unit Prices: A schedule of unit prices is included in Part 3. Specification Sections referenced in the schedule contain requirements for materials described under each unit price.

012200 - 2

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1 UNIT PRICE DESCRIPTION

A. Unit Price

1. Payment for all work performed under the contract shall be included in the lump sums or unit prices shown in the Agreement. All required work, labor, auxiliary materials necessary for completion of work specified and ready for use but not specifically listed as a pay item shall be incorporated into the Bid within the Bid items listed. All unit price items listed below shall include the cost for providing a Bond. Any additional Work occurring that is not listed below as an Bid Items will be handle by a change order with an item for Contractor’s Bond and Markup pricing.

2. The contractor shall furnish the labor and equipment necessary to perform measurements for payment. All measurements shall be made in the presence of and/or approved by the Engineer or his representative.

B. Unit Price for Gravity Sewer Items (PART A): Measurement and payment shall be made as follows:

1. Mobilization: Include cost for mobilization and demobilization of the contractor’s forces and equipment necessary to perform the work required under the contract. Unit: Lump Sum.

2. Traffic Control Measure: Furnish labor and materials to conduct the necessary traffic control in accordance with the VDOT standards for this project. This item includes but is not limited to signs, flagger service, electronic arrows, warning lights, channelizing devices, traffic barriers, impact attenuators, temporary signalization, type III barricades, truck mounted attenuators, and portable changeable message signs that will be needed for proper traffic control according to the latest version of the Virginia Work Area Protection Manual. Unit: Lump Sum.

3. Clearing and Grubbing: Furnish equipment and labor to remove and legally dispose of all trees, stumps, and brush within the Project as designated in the Drawings. Include cost for site restoration such as grading, temporary seeding, sod mulching and erosion and sediment control measures (i.e., silt fence, inlet protections, etc.) not included elsewhere in the Bid items. Unit: Lump Sum. Measurement: per project.

4. Asphalt Removal: Furnish material and labor to saw cut existing asphalt at areas designated in Drawing for the proposed utilities (sewer) improvement including the removal and disposal of pavement. The town has an area where the asphalt can be disposed of. Unit: Lump Sum.

5. VDOT 21A or B Aggregate Subbase: Furnish, place, and compact level base and topping stone course beneath existing removed asphalt street of thickness specified in Drawing including restoration impacted by utilities placement. Unit: ton. Measurement: delivered weight tickets.

012200 - 3

6. VDOT SM-9.5D Surface Asphalt: Furnish and place tack coat on the aggregate subbase and proper placement of surface course as specified in area designated in drawings. The materials and mix shall conform to the VDOT Specification Section 211 and the contract documents. Unit: ton. Measurement: delivery tickets.

7. Gravity Sewer in Casing: Furnish and install gravity sewer in casing pipe of nominal diameter and SDR-18 C900 PVC piping as specified in the drawings in casing pipe including carrier pipe spacers, straps, closing casing end, restraint joint, tracer wire, etc., flushing, testing, complete and ready for use. Unit: linear foot. Measurement: casing length plus four feet. Marking post covered in a separate item.

8. Casing: Bored Casing: Furnish and install steel casing pipe of nominal diameter as specified including excavation pits, backfill, boring restoration, etc. complete and ready for use. Bidder shall provide cost of boring through earth material and a separate cost for boring through rock material as provided on Bid Form. Measurement: length of casing that has been placed through earth material and length of casing that has been placed through rock material. Quantities reflected in these bid items are one half of the total linear foot. These quantities will be adjusted by change order to reflect the actual quantities installed in earth and rock materials.”

9. Manhole Replace in Place: Furnish and install new manhole as specified at the designated area in drawings including excavation, existing manhole removal and disposal, dewatering, bedding, 48-inch diameter manhole base, slab, riser section, cone unless specified otherwise, grade rings, steps, pipe openings and boots, bench and channel, standard ring and cover, backfill, restoration, epoxy coating, etc., complete, and ready for use. Unit: each. Measurement: per 5 FT depth intervals derived from manhole top and its lowest invert for manhole replace in place.

10. Gravity Sewer: Furnish material and labor to install new gravity sewer of material and pipe nominal diameter as specified including excavation, bedding, backfill, detectable warning tape site restoration, dewatering, cleanup, etc., necessary to install sewer pipe between the depths of “Y” and “X” feet. Unit: linear foot. Measurement: Contractor shall measure existing/proposed grades along the centerline of sewers between the centerlines of adjacent manholes, compute by interpolation the stations at which the distance between pipe invert and grade is 0-5’ and 5’ intervals greater; sum the distances between stations thus derived within correct range of depths. Submit tabulated results with requests for payment. Measurement: the horizontal distance along centerline of trench from manhole to manhole.

11. Connection to Existing Manhole: Furnish and install manhole connection in the existing manhole including boot fitting as required for gravity sewer insert to manhole rework of bench channel. Unit: each. Measurement: per connection to the existing manhole.

12. Manhole: Furnish and install new manhole as specified on drawings including excavation, dewatering, bedding, 48-inch diameter manhole base, slab, riser section, cone unless specified otherwise, grade rings, steps, pipe openings and boots, bench and channel, standard ring, and cover, backfill, restoration, epoxy coating, etc., complete, and

012200 - 4 ready for use. Unit: each. Measurement: per 5 FT depth intervals derived from manhole top and its lowest invert.

13. Plug and Abandon Existing Manhole: Plug and abandon existing manhole after new sewer installation or the complete manhole removal for sewer line installation as designated in drawings and in accordance specification. Unit: each.

Measurement: per 5-foot depth interval derived from manhole tops and its lowest invert of manhole abandoned. (Addendum #1)

14. Plug and Abandon Existing Sewer Piping: Plug and abandon existing sewer piping as designated in drawings and in accordance with specifications. Unit: each. Measurement:

per sewer pipe end section plugged.

15. Tracer Wire Test Station: Furnish and install test wire test station at the end of the casing to ensure proper location of each end of casing, including proper posts labels. Wiring is included in the linear feet of the gravity sewer in casing. Unit: each. Measurement: per tracer test station installed.

16. Doghouse Manhole: Furnish and install new doghouse manhole as specified in drawings including excavation, dewatering, bedding, 48-inch diameter manhole riser with cut out opening, slab for riser to seal to, riser sections, cone, grade rings, steps, pipe openings and boots, removal of section of pipe, bench and channel formation, standard ring and cover, backfill, restoration, etc., complete and ready for use. Unit: each. Measurement: per 5-foot depth intervals derived from manhole top and its lowest invert. (Addendum #1)

17. Connection to Existing Sewer Line: Furnish and install a Hulk Connection for the connecting of new sewer line to existing sewer line and miscellaneous items as required for complete tie-in connection and ready for sewer line extension. Unit: each.

Measurement: per Hulk Connection installed. (Addendum #1)

C. Lump Sum for Construction Staking Items (PART B): Measurement and Payment shall be made as follows:

1. Construction Staking: Construction Staking shall be performed by B & B Consultants, Inc. (here referred to as the Engineer). Price for staking Base Bid is $2,500.00 and shall be included in the contract unit price bid. The following items shall be included in the cost:

• Flag clearing (one time only)

• Stake manholes with offsets stakes (one time only)

• Stake bored casing with offsets (one time only)

D. Unit Prices for Unsuitable Materials Items (PART C): Measurement and payment shall be made as follows:

012200 - 5

1. Rock Excavation: Remove and dispose of rock encountered in pipe trenches or pump station excavation. Payment for excavation shall include the cost for removal of an additional six inches below the pipe or eight inches below structures and replacing it with compacted crushed stone backfilled materials to required grade. Unit: cubic yard.

Measurement: see Division 31-Earth Moving.

2. Unsuitable Subgrade Removal and Replacement: Where ordered by Engineer, remove, and dispose of unsuitable subgrade, replace pipe bedding and/or foundation with on-site material or crushed stone, Unit: cubic yard. Measurement: See Division 31-Earth Moving.

3.2 APPLICATION FOR PAYMENT

A. Applications for payment shall be made on the form included in the Contract Document. The contractor shall certify each payment application.

B. The procedure for filling out applications shall be as outlined in Section 19 of the General Conditions. The due date of payments shall be as agreed at the pre-construction conference.

3.3 CLAIMS FOR EXTRA WORK

A. The Engineer may at any time, by issuing a Field Order, make changes in the details of the Work. The Contractor shall proceed with the performance of any changes in the Work so ordered by the Engineer unless the Contractor believes that such Field Order entitles him to a change in Contract Price or Time, or both, in which event shall give receipt of the ordered change. Thereafter, the Contractor shall document the basis for the change in Contract Price or time within thirty (30) days. The Contractor shall not make such changes pending the receipt of an executed Change Order or further instruction from the Owner.

END OF SECTION