Lee's Summit

DE Engineers Estimate

The Engineer’s Estimate of Probable Construction Costs has been accepted for this project, and the Engineering Plan Review and Inspection Fee (which is calculated as 3% of the total infrastructure cost) have been included. These must be paid prior to the issuance of an infrastructure permit and/or the final processing of a building permit. $64,671.46

DE Commercial Detention Basin

The applicant shall submit and the City shall accept an “As-built / As-graded” detention basin plan prior to issuance of any occupancy permit for the proposed development.

DE Contact Field Eng. Inspector

Prior to the commencement of any construction activities, the Contractor shall contact Field Engineering Inspections at (816) 969-1200 to coordinate a preconstruction briefing with the assigned Field Engineering Inspector.

DE Future Repair Work

Please be aware that any future repair work to public infrastructure (e.g., water main repair, sanitary sewer repair, storm sewer repair, etc.) within public easements will not necessarily include the repair of pavement, curbing, landscaping, or other private improvements which are located within the easement.

Miscellaneous Correction

The modified easement for the public sanitary sewer shall be recorded prior to issuancy of any type of occupancy.

DE Engineers Estimate

The Engineer’s Estimate of Probable Construction Costs has been accepted for this project, and the Engineering Plan Review and Inspection Fee (which is calculated as 3% of the total infrastructure cost) have been included. These must be paid prior to the issuance of an infrastructure permit and/or the final processing of a building permit. $64,671.46

DE Commercial Detention Basin

The applicant shall submit and the City shall accept an “As-built / As-graded” detention basin plan prior to issuance of any occupancy permit for the proposed development.

DE Contact Field Eng. Inspector

Prior to the commencement of any construction activities, the Contractor shall contact Field Engineering Inspections at (816) 969-1200 to coordinate a preconstruction briefing with the assigned Field Engineering Inspector.

DE Future Repair Work

Please be aware that any future repair work to public infrastructure (e.g., water main repair, sanitary sewer repair, storm sewer repair, etc.) within public easements will not necessarily include the repair of pavement, curbing, landscaping, or other private improvements which are located within the easement.

Miscellaneous Correction

The modified easement for the public sanitary sewer shall be recorded prior to issuancy of any type of occupancy.

Miscellaneous Correction

**Correction added 1/18/2023 2018 IPC 704.1 Slope of horizontal drainage piping. Horizontal drainage piping shall be installed in uniform alignment at uniform slopes. The slope of a horizontal drainage pipe shall be not less than that indicated in Table 704.1 except that where the drainage piping is upstream of a grease interceptor, the slope of the piping shall be not less than 1/4 inch per foot. Action required: Revise 8" sanitary piping to be not less than 1/16" per foot. (apologies for not including in original report but this is a critical item) 2/3/23 - changed on plans to %1

Code Statement

All issues pertaining to life safety and property protection from the hazards of fire, explosion or dangerous conditions in new and existing buildings, structures and premises, and to the safety to fire fighters and emergency responders during emergency operations, shall be in accordance with the 2018 International Fire Code.

Misc.

The FDC's and sprinkler room access for the ASC and the North Pavilion are located in the area of the dumpster enclosure parking lot. Access shall be maintained to both at ALL times during construction.

Please refer to comment #5 in the previous applicant letter. Details on the manhole adjustment to grade using new barrel sections were noted on the plans. However, SS-03 is shown with a depth of 23.44 feet proposed depth, and SS-05 is shown with a proposed depth of 20.85 feet. The maximum depth of sanitary sewer lines in the City of Lee's Summit is 20.0 feet as measured from the top of the manhole to the flowline. Please review and evaluate alternatives.

Please refer to comment #14 in the previous applicant letter. A private lateral with 0.4% slope may not meet building code for an 8 inch line. Please explore additional options, such as an evaluation of the line upstream and downstream for possible removal and replacement, or alternatively, re-routing the line to the north to tie into the public main.

Please refer to comment #15 in the previous applicant letter. A maximum of 1.5% slope was specified, but 2% was shown on the plans on Sheet C201 (i.e., Construction Note 3). Please revise to 1.5%. If the ADA-accessible space is greater than 1.5%, a construction tolerance up to 2.00% is allowable.

Please refer to comment #11 in the previous applicant letter. Limits of the proposed sanitary sewer easement (i.e., an exclusive easement for sanitary sewer) shall be shown on the Final Development Plan to determine whether utility conflicts exist, such as lighting poles, private storm lines and inlets, etc. It appears some of the light pole bases will be within the limits of such an easement, which is not allowed. Please review and evalutate, and move the light pole bases outside the limits of any existing or proposed public easements.

Miscellaneous Correction

Provide complete, engineered, retaining wall design.

Miscellaneous Correction

Provide complete site lighting plan including light pole base detail.

Miscellaneous Correction

**Correction added 1/18/2023 2018 IPC 704.1 Slope of horizontal drainage piping. Horizontal drainage piping shall be installed in uniform alignment at uniform slopes. The slope of a horizontal drainage pipe shall be not less than that indicated in Table 704.1 except that where the drainage piping is upstream of a grease interceptor, the slope of the piping shall be not less than 1/4 inch per foot. Action required: Revise 8" sanitary piping to be not less than 1/16" per foot. (apologies for not including in original report but this is a critical item)

Code Statement

All issues pertaining to life safety and property protection from the hazards of fire, explosion or dangerous conditions in new and existing buildings, structures and premises, and to the safety to fire fighters and emergency responders during emergency operations, shall be in accordance with the 2018 International Fire Code.

Misc.

The FDC's and sprinkler room access for the ASC and the North Pavilion are located in the area of the dumpster enclosure parking lot. Access shall be maintained to both at ALL times during construction.

Fire Lanes - Marking

IFC 503.3 - Where required by the fire code official, approved signs or other approved notices or markings that include the words NO PARKING—FIRE LANE shall be provided for fire apparatus access roads to identify such roads or prohibit the obstruction thereof. The means by which fire lanes are designated shall be maintained in a clean and legible condition at all times and be replaced or repaired when necessary to provide adequate visibility. Action required- No Parking signage shall be provided in the the dumpster enclosure access area

It appears a SWPPP is required due to the disturbed area being greater than 1 acre. Please submit a SWPPP for the project.

Evidence that the Nationwide USACE permit shall be provided prior to formal approval of the Final Development Plan. Please submit the Nationwide permit when available.

A bold note shall be provided on the detention basin sheet stating "DETENTION BASIN MODIFICATIONS SHALL BE REQUIRED PRIOR TO ANY OTHER IMPROVEMENTS ON THE SITE (EXCLUDING EROSION AND SEDIMENT CONTROL). AN AS-BUILT RECORD DRAWING SHALL BE REQUIRED PRIOR TO ISSUANCE OF A CERTIFICATE OF SUBSTANTIAL COMPLETION" or equivalent language.

Sheet C401: Please label the private sanitary sewer extension as "PRIVATE" on the profile view. This is needed for our GIS technicians to accurately portay the information on our GIS system.

The City of Lee's Summit public sanitary sewer system is being modified, and no details were provided on the adjustment of manhole frame and lids to grade. Frames and lids are being adjusted several feet, and simple adjustment methods are not appropriate for adjustment to grade. Please show how the manholes will be adjusted to grade, including new cone sections.

Please show and label the hydraulic grade line for the design storm on the private stormwater lines. If the 100 year event is not contained within the pipe, a suitable overflow route shall be established and minimum freeboard of 2.0 feet maintained between any low opening of an adjacent building. Please evaluate and revise.

Please label all private storm lines as "PRIVATE" on the profile views.

It would appear a fence is required along the retaining wall within the detention basin due to the proximity to a walking surface. Please evaluate and revise as appropriate.

Sheet C506: Please show the limits (in graphic format) of the water surface elevation within the detention basin for the design storm event, and ensure a minimum setback of 20 feet is maintained between this water surface elevation line and any property line or building.

Typical pavement section for asphalt was missing the minimum 6 inches of aggregate base course. Please revise.

Additional easement for the deep public sanitary sewer line shall be required. This additional sanitary sewer easement can be dedicated by separate document, and shall be an exclusive sanitary sewer easement dedicated to the City of Lee's Summit on the standard template form. It shall be a minimum of twice the depth to the flowline of the deepest portion of the sanitary sewer, and may be variable based on the depth of the sanitary sewer along the deepened portion. Please provide a courtesy review copy of the easement, along with an 8.5 by 11 inch exhibit showing in graphic format the limits of the easement, prior to execution and prior to recording. This easement shall be required prior to issuance of a Certificate of Substantial Completion.

Please provide a trenching and backfill detail for all storm lines, sanitary lines, and water lines. Please ensure the new July 2020 requirement of 12 inches of aggregate is shown on the top of pipe rather than the old standard of 6 inches aggregate.

All Rip Rap Callouts: Please show the dimensions at each location. The details require the user to plug numbers into an equation, which is not acceptable. Recommend all information be included on the plan view, including length, width, depth, rip rap type, geotextile.

Private sanitary sewer extension shows a proposed 0.40% slope. The minimum slope for an 8 inch public line in a deadend configuration is 1.00%. It would appear the slope is too flat for this application. Please review and revise as appropriate.

Sheet C201: ADA-accessible parking stalls shall include a callout on the plan view showing the design slope. The design slope shall be no greater than 1.50% in any direction, with the build-out value of 2.00% to allow for construction tolerance. Please provide slope callouts on the plan view.

Pavement Sections: Where are the heavy-duty asphalt pavement sections located? The definition of heavy-duty in this instance is defined as areas where truck traffic, emergency vehicle traffic such as ambulance and fire trucks, and trash truck traffic will traverse. In these locations, a minimum of 1.5 inch surface course, with a 5 inch base course asphaltic concrete layer is needed on top of a minimum 6 inches aggregate subgrade, and either geogrid below this layer, or clhemically-stabilized subgrade. Please evaluate and revise, and please show the locations where heavy-duty pavement will be utilized.

Curb and gutter typical section views are mostly correct, but do not show the required 1 foot extension beyond the back of curb with subgrade. Recommend using the typical pavement sections to show the 1 foot extension beyond the back of curb. Alternatively, a separate curb and gutter section view can be drawn-up showing the minimum 1 foot extension beyond the back of curb. Please evaluate and revise as appropriate.

Public Sanitary Sewer Line: Please label the City manholes with their respective manhole numbers. For purposes of this application, the City manhole numbers are as follows: 1) 16-015 far easternmost manhole shown on Sheet C400 near the Douglas St. right of way, 2) 16-014 dowstream of 16-015, 3) 16-049 dowstream of 16-014, 4) 16-048 downstream of 16-049, and 5) 16-047 downstream of 16-048.

An itemized and sealed Engineer's Estimate of Probable Construction Costs should accompany your final submittal drawings. Please include the following in the estimate: 1) pavement, 2) aggregate base course, including the area one (1) foot beyond the back of curb, 3) chemically-stabilized subgrade, including the area one (1) foot beyond the back of curb, 4) curb and gutter, 5) grading to establish parking lot and drainage, 6) grading for detention basin modifications, 7) storm lines greater than 6 iinches in diameter, 8) storm structures such as inlets, 9) water lines (if any) exterior to buildings with new connections, 10) sanitary sewer lines and structures such as manholes, 11) public sanitary sewer modifications including new cone sections or other means to adjust to grade, 12) rip rap, 13) erosion and sediment control measures, 14) final restoration, including sodding, seeding, fertilizer, mulch, and topsoil.

DRIVE AISLE WIDTHS (Sheet C204). The east-west drive aisle areas flanked by landscape islands and curbing on both sides shall have a minimum pavement width of 24' (28' back-of-curb to back-of-curb). The dimension plan labels these areas as having only 20' of pavement width (24' b/c to b/c). Revise this and all plans to meet the minimum 24' of required pavement width for this areas.

LANDSCAPE ISLANDS. Tree planting areas shall be no less than ten feet in width. No tree shall be located less than four feet from the back of curb. A number of the proposed landscape islands do not meet these minimum requirements to serve as tree planting areas.

Miscellaneous Correction

Provide complete, engineered, retaining wall design.

Miscellaneous Correction

Provide complete site lighting plan including light pole base detail.

Code Statement

All issues pertaining to life safety and property protection from the hazards of fire, explosion or dangerous conditions in new and existing buildings, structures and premises, and to the safety to fire fighters and emergency responders during emergency operations, shall be in accordance with the 2018 International Fire Code.

Misc.

The FDC's and sprinkler room access for the ASC and the North Pavilion are located in the area of the dumpster enclosure parking lot. Access shall be maintained to both at ALL times during construction.

Fire Lanes - Marking

IFC 503.3 - Where required by the fire code official, approved signs or other approved notices or markings that include the words NO PARKING—FIRE LANE shall be provided for fire apparatus access roads to identify such roads or prohibit the obstruction thereof. The means by which fire lanes are designated shall be maintained in a clean and legible condition at all times and be replaced or repaired when necessary to provide adequate visibility. Action required- No Parking signage shall be provided in the the dumpster enclosure access area