Infrastructure Improvements in the Dupont-Wappoo Watershed

Location: South Carolina
Posted: Sep 28, 2026
Due: Oct 16, 2026
Agency: City of Charleston
Type of Government: State & Local
Category:
  • D - Automatic Data Processing and Telecommunication Services
Publication URL: To access bid details, please log in.
Bid Title: Infrastructure Improvements in the Dupont-Wappoo Watershed
Category: Stormwater
Status: Open
Description:

The City of Charleston (City) is accepting Bid Proposals for construction services for the Infrastructure Improvements in the Dupont-Wappoo Watershed Project. The City will receive submittals until October 16, 2026 at 2:00 pm at 2 George Street, Suite 2100, Charleston, SC 29401. The Work includes but is not limited to: demolition of existing storm drain, curb and gutter, driveway aprons, driveways, and trees; installation of storm drain pipes and structures; excavation and grading of an existing open drainage channel; adjustment and installation of water appurtenances, and relocation of water service lines and sanitary sewer service lines as needed; installation of curb and gutter, sidewalk, driveway aprons, and driveways; milling and surfacing with associated restriping of traffic control markings; removal and replacement of fences; installation of sediment and erosion control devices; clearing and grubbing; restoration of disturbed areas; traffic control; as-built record drawings; and more as shown in the Drawings. All related documents will be available at this website, www.charleston-sc.gov , (Business, Bidline, Stormwater), or may be obtained by submitting a request to Jordyn Mallett at For security reasons, you must enable JavaScript to view this E-mail address. or 843-579-6419.

Publication Date/Time:
9/28/2026 12:50 PM
Closing Date/Time:
10/16/2026 2:00 PM
Contact Person:
Jordyn Mallett
mallettj@charleston-sc.gov
843-579-6419
Fee:
N/A
Business Hours:
8:30am-5:00pm
Related Documents:

Attachment Preview

C
CHARLESTON WATER SYSTEM SPECIFICATIONS
Appendix

COMMISSIONERS OF PUBLIC WORKS
OF THE CITY OF CHARLESTON, SOUTH CAROLINA
CONTRACT DOCUMENTS
FOR CONSTRUCTION OF:
STORMWATER INFRASTRUCTURE IMPROVEMENTS
IN THE DUPONT-WAPPOO WATERSHED - WATER
AND SEWER RELOCATIONS
July 2026
EC-CD-00014 (Rev. 08/01/23)
When printed, this document is uncontrolled.

TABLE OF CONTENTS
I. CONTRACT DOCUMENTS
1. Measurement & Payment.................................................................06/01/2026
2. Supplemental Requirements.............................................................06/01/2026
II. GENERAL CONDITIONS: NOT USED
III. SUPPLEMENTAL CONDITIONS: NOT USED
IV. TECHNICAL SPECIFICATIONS
01001 General Requirements ............................................................................. Rev. 07/25/25
01031 Grades, Lines and Levels ........................................................................ Rev. 07/25/25
01700 Project Commissioning ............................................................................ Rev. 10/16/25
01710 Cleaning ................................................................................................... Rev. 07/25/25
02221 Trench Excavation and Backfill ................................................................ Rev. 10/16/25
15060 Ductile Iron Pipe and Fittings for Water Mains ......................................... Rev. 10/16/25
15063 Polyvinyl Chloride PVC Sewer Pipe................ ......................................... Rev. 10/16/25
15063 Contractor Installed Water Service........................................................... Rev. 10/16/25
15100 Water Valves ............................................................................................ Rev. 10/16/25
15109 Fire Hydrant.................................................... ......................................... Rev. 10/16/25
TOC-1
EC-CD-00015 (Rev. 10/21/25)
When printed, this document is uncontrolled.

SECTION 01001
GENERAL REQUIREMENTS
PART 1 - GENERAL
1.1 COMMENCEMENT AND PROSECUTION OF WORK
A. Contract time shall begin at which time the Owner will issue a written Notice
to Proceed. The Contractor must commence construction withinfourteen (14)
calendardays of issuance of a written Notice to Proceed.
B. The Contractor shall maintain sufficient labor and supervision on the job until
all items have been completed and the final commissioning has been
approved by the Engineer.
1.2 COOPERATION
A. The General Contractor and all Sub-Contractors shall cooperate with one
another and with other Contractors doing related work and shall coordinate
their work with the work of other trades and other Contractors to facilitate the
general progress of the work.
B. Each trade shall afford all other trades and all other Contractors every
reasonable opportunity for the installation of their work andfor storage of their
materials.
1.3 SANITARY FACILITIES, TEMPORARY
A. The Contractor shall not allow any sanitary nuisances to be committed in or
about work. The Contractor shall endorse sanitary regulations of Local and
State Health authorities.
1.4 SITE EXAMINATION OF EXISTING CONDITIONS
A. The Contractor, in undertaking the work under this Contract, is assumed to
have visited the premises and to have taken into consideration all conditions
which might affect his work.
B. No consideration will be given to any claim based on lack of knowledge of
existing conditions, except where the Contract Documents make definite
provisions for adjustment of cost or extension of time due to existing
conditions, which cannot be readily ascertained.
01001-1
EC-TS-00001(Rev.05/28/25)
When printed, this document is uncontrolled.

1.5 SPECIFICATIONS EXPLANATION
A. Attention is directed to the fact that the detailed specifications and separate
sections may be written in short or abridged form. In regard to every section
of the specifications and all parts thereof, mentioned therein or indications on
the drawings or articles, materials, operations or methods requires that the
Contractor:
1. Provide each item mentioned and indicated (of quality of subject to
qualifications notes).
2. Perform (according to conditions stated) each operation prescribed.
3. Provide therefore all necessary labor, equipment and incidentals.
B. Whenever in these specifications or on the drawings the words "directed",
"required", "permitted", "ordered", or words of like import are used, it shall be
understood that the directions, requirements, permission or order of the
Engineer is intended; and similar words "approved", "acceptable",
"satisfactory", or words of like import shall mean approved, acceptable to, or
satisfactory to the Engineer.
C. For convenience of reference and to facilitate the letting of Contracts and Sub-
Contracts, these specifications are separated into titled Sections. Such
separation shall not however, operate to make the Engineer an arbiter to
establish limits to the Contracts between the Contractor and Sub-Contractors,
nor shall such operation be interpreted as superseding normal union
functions.
D. Notwithstanding the appearance of such language in the various divisions of
the specifications as "The Plumbing Contractor", "The Electrical Contractor",
"The Roofing Contractor", etc., the Contractor is responsible to the Owner for
the entire Contract and the execution of all work referred to in the Contract
Documents.
1.6 STANDARD
A. Wherever reference is made to the standard specifications of nationally
known organizations and specific articles, sections, divisions, or headings are
not given, such specifications shall apply in full.
B. Standard specifications where included herein by abbreviation or otherwise
shall form a part of this specification the same as if quoted in full.
C. Unless otherwise noted, the most recent version of the standard in effect at
the date ofInvitation for Bid will apply.
01001-2
EC-TS-00001(Rev.05/28/25)
When printed, this document is uncontrolled.

D. The Engineer may require, and the Contractor shall furnish if required to do
so, certificates from manufacturers to the effect that the products or materials
furnished by them for use in the work comply with the applicable specified
requirements for the materials or products being furnished.
1.7 TELEPHONE
A. Contractor shall maintain, at his expense, a job telephone for duration of the
Contract.
1.8 TEMPORARY UTILITIES
A. The Contractor shall furnish water, electricity, and heating fuel necessary for
construction. Contractor shall provide necessary temporary piping, faucets,
valves, wiring, switches, outlets, etc., to carry services to the work.
B. The Contractor shall make all temporary utilities connections for his own use
and remove temporary services on completion of Contract.
1.9 FIELD DRAWINGS
A. The Contractor shall maintain at the site for the OWNER a field copy of the
contract drawings and modifications thereto, marked to record all changes
made during construction; such drawings will show all dimensions necessary
to determine locations of all items placed during the performance of work.
B. Upon completion of the work, Contractor shall furnish a marked set of
drawings showing field changes affecting the various mechanical trades such
as plumbing, ventilating, heating and air conditioning, site utilities and
electrical, as actually installed and as specified under those sections of the
specifications, and deliver them to the Architect/Engineer. Architect/Engineer
will furnish prints to Contractor for marking.
1.10 RECORD DRAWINGS
A. The Contractor shall, upon completion of the work, furnish a set of RECORD
DRAWINGS in accordance with Section 2.4 of Specification 01700, and
deliver to the Architect/Engineeras part of the Project Commissioning.
1.11 MATERIALS PRIOR APPROVALS AND SUBSTITUTIONS
A. Materials of Approved Equal:
01001-3
EC-TS-00001(Rev.05/28/25)
When printed, this document is uncontrolled.

1. Where items of equipment and/or materials are specifically identified
herein by a manufacturer's name, model or catalog number, only such
specific item may be used in the base bid, except as hereinafter
provided.
B. If contractors wish to use items of equipment and/or materials other than those
specifically identified in the Specifications, Contractor shall apply in writing to
the Engineer for approval of substitution at least fourteen (14) calendar days
prior to opening of bids, submitting with his request for approval complete
descriptive and technical data on the item(s) he proposes to furnish.
1. The request shall include a certification by the manufacturer that:
a. The equipment will be offered with no exceptions to the
specifications or;
b. Equipment will be offered "as equal" and in conformance with
the requirements of the specifications with certain exceptions.
Exceptions must refer to specific subparagraphs of the
specifications and explicitly describe the deviation there from.
C. Approved substitutions will be listed in an addendum issued to all General
Contractors prior to opening of bids.
D. Unless requests for changes in the Specifications are approved prior to the
opening of bids, as defined above, the successful Contractor will be held to
furnish specified items. After Contract is awarded, changes in specifications
will be made only as defined under "Substitution of Equipment and Materials".
1.12 SUBSTITUTION OF EQUIPMENT AND MATERIALS
A. After execution of contract, substitution of equipment and/or materials, other
than those specifically named in the Contract Documents, will be approved by
the Engineer for the following reasons only:
1. That the equipment or material is no longer available.
2. That the equipment or material does not perform the function for which
it was intended.
3. That the equipment or material cannot be delivered due to conditions
beyond the Contractor's control.
B. To receive consideration, requests for substitutions must be in writing
accompanied by documentary proof of equality, and difference in price and
delivery, if any.
01001-4
EC-TS-00001(Rev.05/28/25)
When printed, this document is uncontrolled.

C. In case of a difference in price, the Owner shall receive all benefit of the
difference in cost involved in any substitutions, and the contract altered by
change order to credit the Owner with any savings so obtained.
1.13 "OR EQUAL" CLAUSE
A. The phrase "or equal" or "or approved equal" shall mean that material or
equipment proposed by the Contractor will be acceptable only when, in the
exclusive judgment of the Engineer and Owner, they are composed of parts
of equal quality, or equal workmanship, designed and constructed to perform
or accomplish the desired result as efficiently as the indicated brand, grade,
class, make or model, and sufficiently similar such that no change in related
Work will be required.
B. Contractor shall not assume the materials, equipment, or methods will be
considered as equal unless the item has beenspecifically so approved for this
Work by theOwner and Engineer.
C. Written approval from the Owner and Engineer must be obtained prior to
installation.
1.14 INSPECTING AND TESTING OF MATERIALS
A. Wherever in these Contract Documents inspecting and testing of material is
called for, the selection of bureaus, laboratories and/or agencies for such
inspecting, testing, and the character of the test shall be submitted to the
Engineer for approval.
B. Documentary evidence satisfactory to the Engineer that the materials have
passed the required inspection and tests must be furnished in one (1)
electronic file in PDF format to the Engineer by the bureau, agency or
laboratory selected.
C. Materials satisfactorily meeting the requirements of the inspection or tests
shall be approved by the Engineer and the Contractor notified of the results.
D. The cost of such inspecting and testing shall be paid for by the Contractor.
1.15 ON SITE TESTING AND INSPECTING
A. Wherever in these Contract Documents testing or inspecting is called for, the
selection of bureaus, laboratories and/or agencies for such testing or
inspecting shall besubmitted to the Engineerfor approval.
01001-5
EC-TS-00001(Rev.05/28/25)
When printed, this document is uncontrolled.

B. Documentary evidence satisfactory to the Engineer that the materials have
passed the required tests or inspection shall be furnished inone (1) electronic
file in PDF format to the Engineer.
C. The cost of such tests and inspecting shall be paid for by the Contractor. Cost
for retest for work that fails to meet the specification requirements shall be
paid by the Contractor.
1.16 MEASUREMENTS AND DIMENSIONS
A. Before ordering materials or doing work, which is dependent for proper size
or installation upon coordination with existing conditions, the Contractor shall
verify all dimensions by taking measurements at the site and shall be
responsible for the correctness of same.
B. No consideration will be giventoany claim based on differences between the
actual dimensions and those indicated on the drawings.
C. Any discrepancies between the drawings and/or the specifications and the
existing conditions shall be submitted as a Request for Information (RFI) to
the Engineer for adjustment before any work affected thereby is begun.
1.17 SHOP DRAWINGS
A. General:
1. Shop drawings and engineering data (submittals) covering all
equipment and all fabricated components which will become a
permanent part of the Work under this Contract shall be submitted to
the Engineer for review, as required.
2. Submittals shall verify compliance with the Contract Documents, and
shall include drawings and descriptive information in sufficient detail to
show the kind, size, arrangement, and the operation of components
materials and devices; the external connections, anchorages, and
supports required; the performance characteristics; and dimensions
needed for installation and correlation with other materials and
equipment.
3. Each submittal shall cover items from only one section of the
specifications unless the item consists of components from several
sources.
01001-6
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When printed, this document is uncontrolled.

4. Coordination:
a. Carefully review and coordinate all aspects of each item being
submitted.
b. Confirm that each item and the submittal comply in all respects
with the specified requirements.
c. Certify that the coordination review has been completed by
affixing the Contractor's signature.
5. All deviations from the Contract Documents shall be identified as
deviations on each submittal and shall be tabulated in the Contractor's
letter of transmittal. Provide essential details of all changes proposed
including impact toother components of the project.
6. Shop Drawings shall not, after having been submitted, be later issued
with revised or additional material, except for items corrected during
the checking by the Contractor or reviewed by the Engineer.
B. Submittal Requirements:
1. Shop Drawings shallclearly indicate the following:
a. Contractor name
b. Name of project
c. CWS project number
d. Description and names of equipment, materials, and items, and
complete identification of locations at which material or
equipment is to be installed
e. Reference to the section of the specifications where it is
specifiedand drawing number, where shown
f. Approval statement of Contractor
g. Date
2. Show complete information for checking and for fabrication, installation
and erection, without reference to other drawings or notes.
3. Be of drafting line work and lettering that is easily readable under field
conditions.
01001-7
EC-TS-00001(Rev.05/28/25)
When printed, this document is uncontrolled.

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