002-012200 UNIT PRICES 71-FA-8.1.pdf

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WC2608 SWOPE Stormwater Basin Retrofit Project
Solicitation number
Not on record
Issued by
Chester County, Pennsylvania

About this file

This document is a Unit Prices specification section for the WC2608 SWOPE Stormwater Basin Retrofit Project at West Chester University of Pennsylvania, dated October 8, 2026. The project involves the retrofit of an existing detention basin located at the southeast corner of the intersection of S High Street and E Campus Drive in West Chester, PA. The scope of work includes clearing and demolition, erosion and sediment controls, basin regrading, underdrain systems, outlet structure replacement, drainage structures and piping, gabion basket forebay, amended soil installation, and related construction. The unit price schedule contains 17 line items with estimated quantities ranging from single units to multiple linear feet and cubic yards. Items include mobilization/demobilization (1 LS), site clearing/demolition/earthwork (1 LS), 24-inch compost filter sock (400 LF), rock construction entrance and filter outlet (1 EA each), erosion control matting (900 SY), amended soils (2,500 CY), 36-inch SLCPP storm pipe (14 LF), various drainage structures and accessories, and gabion forebay (34 CY). The contract time spans from December 7, 2026, through July 3, 2027, for a total of 208 calendar days. A pre-bid site visit was scheduled for November 6, 2026, at 11:00 AM.

The contract is classified as a Prevailing Wage project under Pennsylvania's prevailing wage determination serial number 26-07767, dated August 25, 2026, with the Highway classification applied. The cost range for this general construction project is estimated between $450,000 and $550,000. Unit prices are established for two types of work: those fully anticipated as part of the contract with estimated quantities included in bid evaluation and extended prices applied to the contract award, and those not necessarily anticipated but potentially required during construction, based on a quantity of one or a commonly-accepted base quantity, which will not be included in bid evaluation or initial contract price but serve as a basis for equitable adjustment if work becomes necessary. The contractor will be paid for unit price work based on actual measured quantities satisfactorily performed, with quantities differing from estimates requiring written authorization from the University. The University reserves the right to reject the contractor's measurements and have work independently measured at the University's expense.

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Text version

WCU Project No. WC2608 SWOPE Stormwater Basin Retrofit Project

October 8, 2026

General Requirements for 71-FA-8.1 Section 012200 - Unit Prices

SECTION 012200

UNIT PRICES

PART 1 - GENERAL

1.01 DEFINITIONS

A. Unit Price: An amount proposed by a bidder as a price per unit of measurement for a material or service.

B. Estimated Quantity: The anticipated amount of work in the units of measurement for a material or service.

C. Extended Price: The arithmetic product of the Unit Price and the Estimated Quantity.

D. Unit Price Schedule: A portion of the Bid Form that includes Unit Prices for Estimated Quantities of work for materials or services, and Extended Prices.

1.02 PROCEDURES

A. The purpose of unit prices is to establish prices for work for which the specific quantity is not known at the time of bid.

B. A unit price shall include all costs for material, labor, equipment, overhead, insurance, taxes, delivery fees, and any other costs associated with the work, as well as profit.

C. There are two types of unit prices.

1. A unit price may be for work fully-anticipated to be part of the contract, but for which the actual quantity is not known at the time of bid. This type of unit price has an estimated quantity of one (1) or more. The estimated quantity represents the University’s best estimate of the amount of that particular work to be required. The Extended Price will be included as part of bid evaluation, and the Extended Price will be part of the contract price at time of contract award. This type of unit price also establishes a basis for payment, and a basis for equitable adjustment to the contract price in the event that the actual quantity of work is different than the estimated quantity of work.

2. A unit price may be for work not necessarily anticipated to be part of the contract, but which may be required during the contract. This type of unit price is based on a quantity of one (1), or a quantity that represents a commonly-accepted base quantity used in purchasing or installing that item if a quantity of one (1) is very small, and this type of unit price will not have an Extended Price. This unit price will not be included as part of bid evaluation, and this unit price will not be a part of the contract price at time of award. This type of unit price establishes a basis for equitable adjustment to the contract price in the event that the work is required.

Unit prices of this type will be individually or wholly accepted or rejected at time of award.

D. For Unit Prices identified in paragraph 1.02 C. 1. above, the following apply.

1. If on the bid form submitted by the Contractor there is a discrepancy in correlation between a unit price and an extended price, the unit price shall govern.

October 8, 2026

General Requirements for 71-FA-8.1 Section 012200 - Unit Prices

2. If the actual quantity required during the contract is different from the estimated quantity, a change in the contract price shall be executed. The change to the contract may include an increase or decrease in the contract time, if appropriate. If the difference between the actual and estimated quantities is significant enough such that the unit price no longer represents a fair and reasonable price for the actual quantity, an adjustment to the unit price may be negotiated upon request of either party.

3. The Contractor will be paid for unit price work on the basis of actual measured quantities of work satisfactorily performed. Quantities of work different than the estimated quantity shall be ordered in writing by the University.

E. For Unit Prices identified in paragraph 1.02 C. 2.. above, the following apply.

1. Although the unit price is based on an estimated quantity of one (1), or on a commonly-accepted base quantity, the actual work may involve significantly more units.

2. If the work is required, a change to the contract price shall be executed. The change to the contract price shall be established by the unit price, if accepted, and the actual quantity. For any unit price work for which there is not an accepted unit price, that unit price shall be negotiated prior to or at the time of the change order. The change to the contract may include an increase or decrease in the contract time, if appropriate.

3. The Contractor will be paid for unit price work on the basis of actual measured quantities of work ordered in writing by the University and satisfactorily performed.

F. In all cases, the following apply.

1. The University reserves the right to reject the Contractor's measurement of work associated with unit priced work, and may have the work measured by an independent agent acceptable to the Contractor at the University's expense.

2. Refer to Technical Specification sections for methods of measurement and payment for unit priced work, if applicable.

1.03 A Unit Price Schedule for this Contract is included as an attachment to this Section.

PART 2 – PRODUCTS

(Not Used)

PART 3 – EXECUTION

(Not Used)

END OF SECTION 012200

Attachment:

Unit Price Schedule

October 8, 2026

General Requirements for 71-FA-8.1 Section 012200 - Unit Prices

Unit Price Schedule

For the following, the Contractor proposes to furnish all labor, material, and equipment to perform the work, complete as described in the Contract documents, at the unit prices quoted in the bid proposal. The Contractor understands that the quantities are estimates and approximate, and are presented for the purpose of determining the total base bid and evaluating bids. The Contractor will be paid for unit price work on the basis of actual measured quantities of work satisfactorily performed. Quantities of work different than the estimated quantity shall be ordered in writing by the University.

Item Estimated No. Description Quantity Units

1 Mobilization/Demobilization 1 LS

Detailed Description: The item shall include all costs involving equipment transportation, construction stakeout, set up and removal for project sites throughout the course of the Project, and the costs of bonding, insurance and submittal coordination. Item shall include traffic control throughout construction, including Work on all township, borough, or state roadways. Payment shall be on a lump sum basis.

2 Site Clearing/Demolition/Earthwork 1 LS

Detailed Description: Item shall include the costs to perform all clearing, grubbing, demolition, disposal, and earthwork. Furnish and install permanent seeding for lawn areas, complete in-place. The seed mixes and rates shall be in accordance with the plans. Item shall include, but is not limited to, the costs for mulching and topsoil placement in lawn areas. Payment shall be on a lump sum basis.

3 24” Compost Filter Sock 400 LF

Detailed Description: The item shall include all costs involving installing, maintaining throughout the course of the project, and removing 24” compost filter sock in accordance with the accompanying construction plans and per Section 312500. Payment shall be on a linear foot basis.

4 Rock Construction Entrance 1 EA

Detailed Description: The item shall include all costs involving installing, maintaining throughout the course of the project, and removing the rock construction entrance in the location and to the specifications as depicted on the accompanying construction plans and per Section 312500. Payment shall be on a per each basis.

5 Rock Filter Outlet 1 EA

October 8, 2026

General Requirements for 71-FA-8.1 Section 012200 - Unit Prices

Detailed Description: The item shall include all costs involving installing, maintaining throughout the course of the project, and removing the rock filter outlet in the location and to the specifications as depicted on the accompanying construction plans and per Section 312500. Payment shall be on a per each basis.

6 Erosion Control Matting 900 SY

Detailed Description: The item shall include all costs involving installation and maintaining throughout the course of the project, the erosion control mating, in the locations and to the specifications as depicted on the accompanying construction plans and per Section 312500. Payment shall be on a per square yard basis.

7 Amended Soils 2,500 CY

Detailed Description: The item shall include all costs involving the transportation, mixing, and installation of amended soils in the location and to the specifications as depicted on the accompanying construction plans and per Section 334211. Payment shall be on a per cubic yard basis.

8 36” SLCPP Storm Pipe 14 LF

Detailed Description: The item includes furnish and install 36” SLCPP, complete in-place.

The locations and quantities shall be in accordance with the plans and per Section 334211.

Item shall include, but is not limited to, the costs for excavation, backfill, compaction, and connection to structures. Payment shall be on a per linear foot basis.

9 DW Endwall For 36” SLCPP 1 EA

Detailed Description: The item includes furnishing and installing Type DW Endwall, complete in-place. The location and specifications shall be in accordance with the plans and per Section 334211. Item shall include, but is not limited to, the costs for excavation, backfill, and compaction. Payment shall be on a per each basis.

10 R-4 Rip Rap 28 CY

Detailed Description: The item shall include furnishing and installing R-4 rip rap in the locations, depths, and widths in accordance with the plans and per Section 313700. Item shall include, but is not limited to, the costs for excavation, backfill, and geotextile. Payment shall be on a per cubic yard basis.

11 Storm Manhole 1 EA

Detailed Description: The item includes furnishing and installing the storm manhole (MH- 1), complete in-place. The location and specifications shall be in accordance with the plans and per Section 334211. Item shall include, but is not limited to, the costs for excavation, backfill, and compaction. Payment shall be on a per each basis.

12 Type M Inlet Box 1 EA

October 8, 2026

General Requirements for 71-FA-8.1 Section 012200 - Unit Prices

Detailed Description: The item includes furnishing and installing the Type-M inlet box (OS- 1), complete in-place. The location and specifications shall be in accordance with the plans and per Section 334211. Item shall include, but is not limited to, the costs for excavation, backfill, and compaction. Payment shall be on a per each basis.

13 4” Perforated Underdrain 227 LF

Detailed Description: The item includes furnishing and installing the 4” perforated underdrain, complete in-place. The locations and specifications shall be in accordance with the plans and per Section 334211. Item shall include, but is not limited to, the costs for excavation, backfill, geotextile, stone, and connection to structures. Payment shall be on a per linear foot basis.

14 4” Underdrain 40 LF

Detailed Description: The item includes furnishing and installing the 4” underdrain, complete in-place. The locations and specifications shall be in accordance with the plans and per Section 334211. Item shall include, but is not limited to, the costs for excavation, backfill, stone, and connection to structures. Payment shall be on a per linear foot basis.

15 Cleanouts for Underdrain 3 EA

Detailed Description: The item shall include furnishing and installing cleanouts within the underdrain, in the locations in accordance with the plans. Item shall include, but is not limited to, the costs for excavation, backfill, and geotextile. Payment shall be on a per each basis.

16 Gate Valve for Underdrain 1 EA

Detailed Description: The item includes furnishing and installing the gate valve complete in-place. The location and specifications shall be in accordance with the plans. Payment shall be on a per each basis.

17 Gabion Forebay 34 CY

Detailed Description: The item includes furnishing and installing the gabion forebay complete in-place. The location and specifications shall be in accordance with the plans and per Section 334211. Item shall include, but is not limited to, the costs for excavation, backfill, gabion baskets, and stone. Payment shall be on a per cubic yard basis.

SECTION 012200
UNIT PRICES
PART 1 - GENERAL
Detailed Description: The item shall include all costs involving equipment transportation, construction stakeout, set up and removal for project sites throughout the course of the Project, and the costs of bonding, insurance and submittal coordination...
Detailed Description: Item shall include the costs to perform all clearing, grubbing, demolition, disposal, and earthwork. Furnish and install permanent seeding for lawn areas, complete in-place. The seed mixes and rates shall be in accordance with th...
Detailed Description: The item shall include all costs involving installing, maintaining throughout the course of the project, and removing 24” compost filter sock in accordance with the accompanying construction plans and per Section 312500. Payment ...
Detailed Description: The item shall include all costs involving installing, maintaining throughout the course of the project, and removing the rock construction entrance in the location and to the specifications as depicted on the accompanying constr...
Detailed Description: The item shall include all costs involving installing, maintaining throughout the course of the project, and removing the rock filter outlet in the location and to the specifications as depicted on the accompanying construction p...
Detailed Description: The item shall include all costs involving installation and maintaining throughout the course of the project, the erosion control mating, in the locations and to the specifications as depicted on the accompanying construction pla...
Detailed Description: The item shall include all costs involving the transportation, mixing, and installation of amended soils in the location and to the specifications as depicted on the accompanying construction plans and per Section 334211. Payment...
Detailed Description: The item includes furnish and install 36” SLCPP, complete in-place. The locations and quantities shall be in accordance with the plans and per Section 334211. Item shall include, but is not limited to, the costs for excavation, b...
Detailed Description: The item includes furnishing and installing Type DW Endwall, complete in-place. The location and specifications shall be in accordance with the plans and per Section 334211. Item shall include, but is not limited to, the costs fo...
Detailed Description: The item shall include furnishing and installing R-4 rip rap in the locations, depths, and widths in accordance with the plans and per Section 313700. Item shall include, but is not limited to, the costs for excavation, backfill,...
Detailed Description: The item includes furnishing and installing the storm manhole (MH-1), complete in-place. The location and specifications shall be in accordance with the plans and per Section 334211. Item shall include, but is not limited to, the...
Detailed Description: The item includes furnishing and installing the Type-M inlet box (OS-1), complete in-place. The location and specifications shall be in accordance with the plans and per Section 334211. Item shall include, but is not limited to, ...
Detailed Description: The item includes furnishing and installing the 4” perforated underdrain, complete in-place. The locations and specifications shall be in accordance with the plans and per Section 334211. Item shall include, but is not limited to...
Detailed Description: The item includes furnishing and installing the 4” underdrain, complete in-place. The locations and specifications shall be in accordance with the plans and per Section 334211. Item shall include, but is not limited to, the costs...
Detailed Description: The item shall include furnishing and installing cleanouts within the underdrain, in the locations in accordance with the plans. Item shall include, but is not limited to, the costs for excavation, backfill, and geotextile. Payme...
Detailed Description: The item includes furnishing and installing the gate valve complete in-place. The location and specifications shall be in accordance with the plans. Payment shall be on a per each basis.
Detailed Description: The item includes furnishing and installing the gabion forebay complete in-place. The location and specifications shall be in accordance with the plans and per Section 334211. Item shall include, but is not limited to, the costs ...

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