Div02.pdf

Lower Rio Grande Flood Control Project North Banker Floodway Levee Improvements Project Hidalgo County, Texas

DIVISION 02-

USIBWC Contract No.: IBM09B0005 EXISTING CONDITIONS

US INTERNATIONAL BOUNDARY & WATER COMMISSION

GOVERNING TECHNICAL SPECIFICATIONS AND PROVISIONS

DIVISION 02 – EXISTING CONDITIONS

DIVISION 02-

USIBWC Contract No.: IBM09B0005 EXISTING CONDITIONS

This Page Intentionally Blank

EXISTING CONDITIONS & FACILITIES

USIBWC Contract No.: IBM09B0002 Page 02.02.00 - 1

SPECIFICATION 02 02 00

This specification includes administrative and procedural requirements for worksite demobilization and cleanup; submission of project record documents, inspection and correction of unsatisfactory conditions, if necessary; and final inspection prior to final progress payment, and includes the following:

1.1 Related Documents, Contract Clauses, & Specifications

1.2 General

1.3 Rights of Way

1.4 Survey Markers

1.5 Roadways and Appurtenances

1.6 Utilities

1.7 Trees, Vegetation, & Other Landscape Features

1.8 Notification by the Contractor

1.9 Protection from Floods

1.10 Groundwater / Dewatering

1.11 Site Condition Documentation

2.0 Materials and Equipment (Not Applicable to this Specification)

3.0 Construction Methods (Not Applicable to this Specification)

4.0 Measurement and Payment

PART 1 - GENERAL

1.1 RELATED DOCUMENTS, CONTRACT CLAUSES, & SPECIFICATIONS

The following may not include all related documents, contract clauses, & technical specifications, and does not relieve the Contractor of the responsibility of performing work associated with this specification in accordance with all terms of the Contract herein.

A. Related documents: As described in paragraph 1.2 of SPECIFICATION 01 01 00.

B. Contract: Section I “Specifications and Drawings for Construction”

C. Technical Specifications: All

1.2 GENERAL

In general, the Contractor shall protect all existing survey markers; roadways and roadway appurtenances; utilities, facilities, and trees / vegetation within the right of way or adjacent properties not designated for modification, construction, and/or removal, and shall restore damaged or temporarily relocated utilities, facilities, and trees / vegetation to a condition equal to or better than prior to such damage or temporary relocation, all in accordance with the Contract Documents.

1.3 RIGHTS OF WAY

A. The Contractor shall not do any work that would affect any survey markers; roadways and roadway appurtenances; utilities (oil, gas, sewer, or water pipeline; any telephone, telegraph, or electric transmission line); any landscape feature (trees / vegetation); any fence; any facility; or

USIBWC Contract No.: IBM09B0002 Page 02.02.00 - 2 any other structure, nor shall the Contractor enter upon the rights of way involved until notified that the Government has secured authority therefore from the proper party.

B. After authority has been obtained, the Contractor shall give said party due notice of its intention to begin work, if required by said party, and shall remove, shore, support, or otherwise protect such survey markers; roadways and roadway appurtenances; utility; any landscape feature; any fence; any facility; or any other structure, or replace the same.

1.4 SURVEY MARKERS

A. The Contractor shall not destroy, remove, or otherwise disturb any existing survey markers without proper authorization from the COR. Unauthorized disturbance of survey markers or points by the Contractor shall be accurately restored after construction activities have been completed.

B. The Contractor is to contact the USIBWC Mercedes Field Office for location of survey markers prior to construction operations.

C. The Contractor shall be required to restore survey markers that are located on the existing levee and will be disturbed by the raising of the levee or other construction operations. Restoration of the survey markers shall be in accordance with SPECIFICATION 01 71 00.

1.5 ROADWAYS AND APPURTENANCES

A. Signs and Markers. The Contractor shall not destroy, remove, or otherwise disturb any existing roadway signs or markers, unless otherwise specified in the plans or directed by the COR. The Contractor shall accurately restore or replace any existing roadway signs or markers immediately, and as approved by the owner of the roadway.

B. Pavement or Paved Structures. All paved areas cut or damaged during construction shall be replaced with similar materials of equal thickness to match the existing adjacent undisturbed areas, except where specific resurfacing requirements have been called for in the Contract Documents or in the requirements of the owner of the pavement of paved structures. The pavement restoration requirement to match existing sections shall apply to all components of existing sections, including sub-base, base, and pavement. Temporary and permanent pavement shall conform to the requirements of the affected pavement. Pavements which are subject to partial removal shall be neatly saw-cut in straight lines as directed by the Government.

(1) Temporary Resurfacing. Wherever required by the public authorities having jurisdiction, the

Contractor shall place temporary surfacing promptly after backfilling and shall maintain such surfacing for the period of time fixed by said authorities before proceeding with the final restoration of improvements.

(2) Permanent Resurfacing. In order to obtain a satisfactory junction with adjacent surfaces, the

Contractor shall saw-cut back and trim the edge so as to provide a clean, sound, vertical joint

USIBWC Contract No.: IBM09B0002 Page 02.02.00 - 3 before permanent replacement of an excavated or damaged portion of pavement. Damaged edges of pavement along excavations and elsewhere shall be trimmed back by saw-cutting in straight lines. All pavement restoration and other facilities restoration shall be constructed to finish grades compatible with adjacent undisturbed pavement.

C. Sidewalks or Private Driveways. Wherever sidewalks or private roads have been removed for purposes of construction, the Contractor shall place suitable temporary sidewalks or roadways promptly after backfilling and shall maintain them in satisfactory condition for the period of time fixed by the authorities having jurisdiction over the affected portions. If no such period of time is so fixed, the Contractor shall maintain said temporary sidewalks or roadways until the final restoration thereof has been made.

D. Access Roads. Existing access roads must be accessible; Contractor shall perform operations to identify detours when closure of access road is a necessity.

1.6 UTILITIES

A. The Contractor is required to hire a utility locator to survey the project limits to locate any utilities not indicated in the Contract Drawings. The Contractor shall immediately notify the COR of any located utilities not indicated in the Contract Drawings; immediate verbal notification is to be followed-up with written notification to the COR within 48 hours.

B. All other underground utilities and other improvements which may be impaired during construction operations shall be protected by the Contractor, regardless of whether or not the utilities are indicated in the Contract Documents. The Contractor shall take all possible precautions for the protection of unforeseen utility lines to provide for uninterrupted service and to provide such special protection as may be necessary.

C. The Contractor shall be responsible for exploratory excavations as it deems necessary to determine the exact locations and depths of any utilities, including irrigation facilities, which may interfere with its work. All such exploratory excavations shall be performed as soon as practicable after Notice to Proceed and, in any event, a sufficient time in advance of construction to avoid possible delays to the Contractor’s progress. When such exploratory excavations show the utility location as indicated in the Contract Documents to be in error, the Contractor shall so notify the Government.

D. The number of exploratory excavations required shall be that number which is sufficient to determine the alignment and grade of the utility.

E. Utilities to be Moved. In case it shall be necessary to move the property of any public utility or franchise holder, such utility company or franchise holder will, upon request of the Contractor, be notified by the Government to move such property within a specified reasonable time. When utility lines that are to be removed are encountered within the area of operations, the Contractor shall notify the Government a sufficient time in advance for the necessary measures to be taken to prevent interruption of service.

USIBWC Contract No.: IBM09B0002 Page 02.02.00 - 4

F. Utilities to be Removed. Where the proper completion of the Work requires the temporary or permanent removal and/or relocation of an existing utility or other improvement which is indicated, the Contractor shall remove and, without unnecessary delay, temporarily replace or relocate such utility or improvement in a manner satisfactory to the Government and the owner of the facility. In all cases of such temporary removal or relocation, restoration to the former location shall be accomplished by the Contractor in a manner that will restore or replace the utility or improvement as nearly as possible to its former locations and to as good or better condition than found prior to removal.

G. Government’s Right of Access: The right is reserved to the Government and to the Governments of public utilities and franchises to enter at any time upon any public street, alley, right-of-way, or easement for the purpose of making changes in their property made necessary by the Work of this Contract.

H. Underground Utilities Indicated. The Contractor shall be required to contact the USIBWC

Mercedes Field Office regarding underground utilities prior to the start of construction. Existing utility lines that are indicated or the locations of which are made known to the Contractor prior to excavation and that are to be retained, and all utility lines that are constructed during excavation operations shall be protected from damage during excavation and backfilling and, if damaged, shall be immediately repaired or replaced by the Contractor, unless otherwise repaired by the owner of the damaged utility. If the owner of the damaged facility performs its own repairs, the Contractor shall reimburse said owner for the costs of repair.

I. Underground Utilities Not Indicated. In the event that the Contractor damages existing utility lines that are not indicated or the locations of which are not made known to the Contractor prior to excavation, a verbal report of such damage shall be made immediately to the USIBWC Mercedes Field Office, and a written report thereof shall be made promptly thereafter. The Government will immediately notify the owner of the damaged utility. If the Government is not immediately available, the Contractor shall notify the utility owner of the damage. If directed by the Government, repairs shall be made by the Contractor under the provisions for changes and extra work contained in the Contract provisions.

J. Costs of locating and repairing damage not due to failure of the Contractor to exercise reasonable care, and removing or relocating such utility facilities not indicated in the Contract Documents with reasonable accuracy, and for equipment on the project which was actually working on that portion of the Work which was interrupted or idled by removal or relocation of such utility facilities, and which was necessarily idled during such work will be paid for as extra work in accordance with the provisions of the Contract.

K. Compliance-Confirmation of Repairs. All repairs to a damaged utility or improvement are subject to inspection and approval by an authorized representative of the utility or improvement owner before being concealed by backfill or other work.

L. Maintaining in Service. Unless indicated otherwise, oil and gasoline pipelines, power, and

USIBWC Contract No.: IBM09B0002 Page 02.02.00 - 5 telephone or the communication cable ducts, gas and water mains, irrigation lines, sewer lines, storm drain lines, poles, and overhead power and communication wires and cables encountered along the line of the work shall remain continuously in service during all the operations under the Contract. The Contractor shall be responsible for and shall repair all damage due to its operations, and the provisions of this Specification shall not be abated even in the event such damage occurs after grouting or is not discovered until after completion of the grouting.

1.7 TREES, VEGETATION, & OTHER LANDSCAPE FEATURES

A. General: The Contractor shall exercise all necessary precautions so as not to damage or destroy any trees or shrubs, including those lying within rights-of-way and project limits, and shall not trim or remove any trees unless such trees have been compliance-confirmed for trimming or removal by the jurisdictional agency or owner. Existing trees and shrubs which are damaged during construction shall be trimmed or replaced by the Contractor or a certified tree company under permit from the jurisdictional agency and/or the Government. Tree trimming and replacement shall be accomplished in accordance with the following paragraphs.

B. Trimming. Symmetry of the tree shall be preserved; no stubs or splits or torn branches left; clean cuts shall be made close to the trunk or large branch. Spikes shall not be used for climbing live trees. Cuts over one and one-half (1 ½ ) inches in diameter shall be coated with a tree paint product that is waterproof, adhesive, and elastic, and free from kerosenes, coal tar, creosote, or other material injurious to the life of the tree.

C. Replacement. The Contractor shall immediately notify the jurisdictional agency and/or the

Government if any tree or shrub is damaged by the Contractor’s operations. If, in the opinion of said agency or the Government, the damage is such that replacement is necessary, the Contractor shall replace the tree or shrub at its own expense. The tree or shrub shall be of a like size and variety as the one damaged, or, if of a smaller size, the Contractor shall pay to the owner of said tree a compensatory payment acceptable to the owner of the tree or shrub, subject to the approval of the owner. The size of the tree or shrub shall be not less than one (1) inch diameter nor less than six (6) feet in height. Planting of replacement trees and shrubs shall be in accordance with the recommendations of the nursery furnishing the plants. Unless otherwise indicated, the Contractor shall water and maintain the replacement trees and shrubs for six (6) months after planting.

D. Lawn or landscaped areas damaged during construction shall be repaired to match the pre-construction condition to the satisfaction of the land owner and the Government.

1.8 NOTIFICATION BY THE CONTRACTOR

Prior to any Work n in the vicinity of any existing underground facilities, including all water, sewer, storm drain, gas, petroleum products, or other pipelines; all buried electric power, communications, or television cables; all traffic signal and street lighting facilities; and all roadway and state highway rights-of-way, the Contractor shall notify the respective authorities representing the entities, owners, or agencies responsible for such facilities not less than three (3) working days nor more than seven (7) working days prior to excavation so that a representative of said entities, owners, or agencies can be present during

USIBWC Contract No.: IBM09B0002 Page 02.02.00 - 6 such work if they so desire.

1.9 PROTECTION FROM FLOODS

The work area and Project-Specific Locations are subject to flooding, and the Contractor shall be responsible for protecting the Work, existing conditions, and adjacent properties from floods and from any flood damage during the course of construction and prior to acceptance of the Work by the Government. The Contractor shall develop and submit a Flood Protection Plan that includes the design for temporary controls for protection from floods. Design elements of the Flood Protection Plan shall be designed by a Texas-licensed or -registered professional engineer and submitted to the COR for review.

The COR shall review the submittal for compliance-confirmation, but this shall not relieve the Contractor of the assigned responsibility under Part 1.9 of this Specification. The Flood Protection Plan shall be submitted in accordance with the requirements outlined in SPECIFICATION 01 33 00, “Submittals.”

The Flood Protection Plan shall be submitted to the COR no later than thirty (30) days after the award of the Contract. The Flood Protection Plan shall become a part of the Contractor’s Plan of Operations. The Plan of Operations is more particularly identified and described in SPECIFICATION 35 41 00, “Construction of Levee”. At no time during the term of the Contract shall the Contractor store brush, trees or grubbing materials on the flood side of the floodway or arroyo reach. Such materials, when stockpiled must be removed within 24 hours.

1.10 GROUNDWATER / DEWATERING

Geotechnical investigations and data identified under 00 31 32 Geotechnical Data indicate that there is no presence of groundwater within the project limits. However, the Contractor shall be responsible for removing any other water that has or may collect in excavations or in and/or near existing structures, etc.

in accordance with federal, state, and local requirements.

1.11 SITE CONDITION DOCUMENTATION

The Contractor shall video tape (including date and time stamp) all construction sites before any work takes place and shall submit a copy to the COR. Noteworthy events at the sites during construction shall be video taped by the Contractor as directed by the COR.

PART 2 – MATERIALS & EQUIPMENT (Not Applicable To This Specification)

PART 3 – CONSTRUCTION METHODS (Not Applicable To This Specification)

PART 4 – MEASUREMENT AND PAYMENT

The work performed by the Contractor under this Specification shall not be paid for directly, but shall be considered subsidiary to the various Bid Items under this Contract.

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