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HomeMy WebLinkAboutSite Certifications - 04/14/2021Elevation Area (SF) Ave. Area  (SF) Incremental  Capacity (CF) Total  Capacity  (CF) 4942 0 0 1,040.0 4942.1 2,080 104.0 104.0 2,460 4943 2,840 2,214.0 2,318.0 Elevation Area (SF) Ave. Area  (SF) Incremental  Capacity (CF) Total  Capacity  (CF) 4942 0 0 979.7 4942.1 1,959 98.0 98.0 2,197 4943.25 2,434 2,526.1 2,624.1 APPROVED GRADING PLAN RAIN GARDEN CAPACITY AS‐BUILT GRADING PLAN St. Elizabeth Ann Seton Catholic Parish 1/19 Page 1 of 2 DURING CONSTRUCTION INSPECTION CHECKLIST To be completed by Construction Superintendent This checklist is to be completed during construction and included with the Overall Site and Drainage Certification. • Use “Yes” for items completed as described. • Use “N/A” for items that are not applicable to the site being certified. • If any blanks are “No,” attach an explanation referencing the item number below. Project Name: St. Elizabeth Ann Seton Date: 8.15.2020 Building Permit Numbers: B1805979 I. Compaction A. Yes All berms and embankments meet the compaction requirements as specified in the project geotechnical report or comply with the City’s standard, which is “soils should be compacted within a moisture content range of 2% below to 2% above optimum moisture content and compacted to 95% of the Maximum Standard Proctor Density (ASTM D698).” Compaction requires verification during construction. Provide testing log from contractor/engineer. II. Storm Drain Pipe Installation Requirements A. Yes The pipe trenches have been compacted in accordance with Section 02225-3.07.A.1. of the Fort Collins Development Construction Standards for Water, Wastewater, Stormwater (e.g., the trenches in the roadways are to be 95% of maximum density and all other areas are to be at 90%, both in accordance with ASTM D698). III. Energy Dissipation and Erosion Protection - FCSCM Chapter 9, Section 7.0 A. Riprap 1. N/A The riprap bedding is a granular bedding of the gradation and thickness indicated on the approved construction plans. 2. N/A A filter fabric was installed instead of granular bedding and is the material shown on the approved construction plans or was an approved equal. Provide documentation for an approved equal. 3. N/A The riprap is the gradation shown on the approved construction plans with a D50 of . 4. N/A The riprap thickness is as shown on the approved construction plans and extends to the horizontal limits shown. 5. N/A The riprap is buried to the depth indicated on the approved construction plans. (A minimum of 6 inches of soil is required.) B. Permanent Erosion Control Fabric - FCSCM Vol.1, Ch.7 1. N/A All fabric was installed per manufacturer’s specifications. 1/19 Page 2 of 2 IV. Other Permanent BMPs A. N/A All cut-off walls have been installed in accordance with the approved construction plans. (Cut-off walls are required for irrigation ditch crossings of storm drain pipes.) V. Extended Detention Basins A. Yes Installation of this facility was verified via inspection by a City-Stormwater Inspector at the point of installation of the water quality control box(es). Provide date of inspection and name of inspector: Chandler Arrellano inspected multiple times daily during install Included certification sheet(s): Please check the appropriate box(es) for the Low Impact Development (LID) facilities found on this site and complete the corresponding certification sheets. ☐ Permeable Interlocking Concrete Pavers ☒ Bioretention Cells (Rain Gardens) ☐ Sand Filters ☐ Vegetated Buffers ☐ Underground Infiltration ☐ Other LID – For certification of Dry Wells, Tree Filters, Constructed Wetland Channels & Ponds, etc., contact City Staff to determine requirements to exhibit the LID facility has been constructed and functions as intended per the approved drainage report. *Please provide photographic documentation of the installation of all stages of all LID facilities. **Please contact the City Stormwater Inspector at stormwaterinspection@fcgov.com to discuss inspection requirements for each LID facility and request inspections. ***All facilities being certified must be “clean” – free of sediment & construction debris – prior to certification or acceptance of the facility. Completed by: Name: Brian Welch Title: President Email: LambornLTC@comcast.net Phone: 7204419595 Company: Lamborn Landscape & Tree Care Address: 356 Tynan Dr. Erie, CO 80516 1/19 Page 1 of 3 Bioretention Cells (Rain Gardens) was held with City-Stormwater Inspector to discuss installation, inspection, checklist, and ☒ ☐ ☐ location (i.e. DCP, initial erosion control Underdrain and basecourse inspection(s): facility was verified via inspection by a City-Stormwater Inspector at the point of installation of the outlet, underdrain, geomembrane layer, and base course (per design in Final Plan ☒ ☐ ☐ inspector’s name Pea gravel and BSM inspection(s): was verified via inspection by a City-Stormwater Inspector at the point of installation of the pea gravel and bioretention ☒ ☐ ☐ inspector’s name Excavation ☒ ☐ ☐ ☒ ☐ ☐ ☒ ☐ ☐ Provide photograph Excavated area is protected/surrounded by sediment/runoff control measures during construction ☒ ☐ ☐ Intake ☒ ☐ ☐ Forebay ☒ ☐ ☐ Provide photograph There is a minimum 3” drop at the forebay entrance ☒ ☐ ☐ Provide photograph Forebay will drain fully and not hold standing water ☒ ☐ ☐ Outlet Structure/Overflow Emergency overflow elevation is confirmed ☒ ☐ ☐ overflow to top of media filter; provide ☒ ☐ ☐ 1/19 Page 2 of 3 Overflow inlet invert elevation is at least 3 inches below containment wall/berm (to direct overflow into inlet) ☒ ☐ ☐ inlet and top of containment wall/berm; ☐ ☐ ☒ Impermeable Liner ☐ ☐ ☒ ☐ ☐ ☒ Provide photograph Impermeable liner is buried with no exposure ☐ ☐ ☒ Any penetrations of the impermeable liner have been sealed and checked for water-tightness ☐ ☐ ☒ Underdrain System ☒ ☐ ☐ Provide photograph At least one cleanout is provided per underdrain lateral ☐ ☐ ☒ Provide photograph Cleanout pipe is solid (not perforated/slotted) ☐ ☐ ☒ Provide photograph Cleanout covers are installed and watertight ☐ ☐ ☒ Provide photograph Verify the underdrain is NOT wrapped in geotextile fabric ☒ ☐ ☐ Provide photograph Verify there is no orifice plate on the underdrain outfall ☒ ☐ ☐ Provide photograph Underdrain integrity tested after backfilling using TV and/or water test ☐ ☐ ☒ Filter Media and Aggregate - meets design specifications ☒ ☐ ☐ record depth installed Arrellano #8, #89, or #9): - meets design specifications ☒ ☐ ☐ record depth installed Arrellano - meets design specifications ☒ ☐ ☐ record depth installed Arrellano ☒ ☐ ☐ ☒ ☐ ☐ Other Structural Components ☒ ☐ ☐ 1/19 Page 3 of 3 Landscaping Verify final landscaping is free of sod ☒ ☐ ☐ ☒ ☐ ☐ Provide photograph Vegetation is planted according to landscape design specifications and final landscaping plan ☒ ☐ ☐ ☒ ☐ ☐ Temporary irrigation installed ☐ ☐ ☒ irrigation is installed to establish/maintain Close Out ☒ ☐ ☐