Cedar Creek Watershed 16 & 16A Remedial Repair -NRCS Texas

CEDAR CREEK WATERSHED SITE 16 REPAIR ROCKWALL COUNTY, TEXAS SPECIFICATIONS SPONSORED BY: ROCKWALL COMMISSIONERS COURT KAUFMAN – VAN ZANDT SOIL AND WATER CONSERVATION DISTRICT COOPERATING WITH NATURAL RESOURCES CONSERVATION SERVICE OF THE U.S. DEPARTMENT OF AGRICULTURE DECEMBER 2024 RICHARD WENBERG Digitally signed by RICHARD WENBERG Date: 2024.12.31 14:45:55 -06'00' -- 1 of 119 -- i 7. Specifications: Construction Specification No. Title Date 2 Clearing and Grubbing 5/01 3 5 Structure Removal Pollution Control 5/01 1/14 6 Seeding, Sprigging and Mulching 9/18 7 Construction Surveys 1/09 8 Mobilization and Demobilization 5/01 9 Traffic Control 5/01 11 Removal of Water 5/01 21 Excavation 5/01 23 Earthfill 2/20 24 Drainfill 5/01 26 Topsoiling 5/01 31 34 41 61 Concrete for Major Structures Steel Reinforcement Reinforced Concrete Pressure Pipe Conduits Rock Riprap 9/18 9/18 1/14 9/18 94 Contractor Quality Control 1/09 95 Geotextile 1/14 Material Specification No. Title Date 521 Aggregates for Drainfill and Filters 2/22 522 523 Aggregates for Portland Cement Concrete Rock for Riprap 2/22 4/22 531 532 533 534 535 536 539 592 Portland Cement Supplementary Cementitious Materials Chemical Admixtures for Concrete Concrete Curing Compound Preformed Expansion Joint Filler Sealing Compound for Joints for Concrete and Concrete Pipe Steel Reinforcement (for concrete) Geotextile 2/22 2/22 2/22 2/22 2/22 2/22 7/22 4/22 -- 2 of 119 -- ii 8. Definitions: Contracting Local Organization (CLO) – Rockwall County Commissioners Court and Kaufman Van- Zandt County Soil and Water Conservation District Owners – Rockwall County Commissioners Court and Kaufman Van-Zandt County Soil and Water Conservation District Contracting Officer – Designated representative from Rockwall County Commissioners Court and Kaufman Van-Zandt County Soil and Water Conservation District. Government - Natural Resources Conservation Service (NRCS) Service - NRCS Engineer - NRCS Construction Engineer Contracting Officer's Representative (COR) - NRCS Construction Engineer Government Representative (GR) – NRCS Construction Engineer Inspector - NRCS Construction Inspector (on-site) Quality Assurance (QA) - NRCS Construction Inspector (on-site) Quality Control (QC) - Contractor's Construction Inspector (on-site) 3. Drawings: Cedar Creek Site 16 - Repair, Drawing No. TX-EN-0812, Sheets 1 through 10 plus Cover Sheet. 4. Location: Structure Site No. 16 is located approximately 7 miles northwest of Terrell, Rockwall County, Texas. 5. Time to be allowed for completion of contract is 179 calendar days (holidays and weather days not included). -- 3 of 119 -- (210-VI-NEH, May 2001) 2-1 Construction Specification 2—Clearing and Grubbing 1. Scope The work consists of clearing and grubbing and disposal of trees, snags, logs, brush, stumps, shrubs, and rubbish from the designated areas. 2. Protection of existing vegetation Trees and other vegetation designated to remain undisturbed shall be protected from damage throughout the duration of the construction period. Any damages resulting from the contractor's operations or neglect shall be repaired by the contractor. Earthfill, stockpiling of materials, vehicular parking, and excessive foot or vehicular traffic shall not be allowed within the drip line of vegetation designated to remain in place. Vegetation damaged by any of these or similar actions shall be replaced with viable vegetation of the same species, similar condition, and like size unless otherwise approved by the contracting officer. Any cuts, skins, scrapes, or bruises to the bark of the vegetation shall be carefully trimmed and local nursery accepted procedures used to seal damaged bark. Any limbs or branches 0.5 inch or larger in diameter that are broken, severed, or otherwise seriously damaged during construction shall be cut off at the base of the damaged limb or branch flush with the adjacent limb or tree trunk. All roots 1-inch or larger in diameter that are cut, broken, or otherwise severed during construction operations shall have the end smoothly cut perpendicular to the root. Roots exposed during excavation or other operations shall be covered with moist earth or backfilled as soon as possible to prevent the roots from drying out. 3. Marking The limits of the area(s) to be cleared and grubbed will be marked by stakes, flags, tree markings, or other suitable methods. Trees to be left standing and uninjured will be designated by special markings placed on the trunk about 6 feet above the ground surface. 4. Clearing and grubbing All trees not marked for preservation and all snags, logs, brush, stumps, shrubs, rubbish, and similar materials shall be cleared from within the limits of the designated areas. Unless otherwise specified, all stumps, roots, and root clusters that have a diameter of 1 inch or larger shall be grubbed out to a depth of at least 2 feet below subgrade for concrete structures and 1 foot below the ground surface at embankment sites and other designated areas. 5. Disposal All materials cleared and grubbed from the designated areas shall be disposed of at locations shown on the drawings or in a manner specified in section 7. The contractor is responsible for complying with all local rules and regulations and the payment of any and all fees that may result from disposal at locations away from the project site. 6. Measurement and payment Method 1—For items of work for which specific units’ prices are established in the contract, the cleared and grubbed area is measured to the nearest 0.1 acre. Payment for clearing and grubbing is made for the total area within the designated limits at the contract unit price. Such payment will constitute full compensation for all labor, equipment, tools, and all other items necessary and incidental to the -- 4 of 119 -- (210-VI-NEH, May 2001) 2-2 completion of the work. Method 2—For items of work for which specific unit prices are established i…