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STAKING SHEET - UNDERGROUND Company: OPTK Networks Exchange: GRAND ISLAND CONSTRUCTION PROJECT NOTES h The State. County. City personnel shall be notified a minimum of forty eight (481 hours in advance of initial project construction. 2 The utility company and the co action, sl are responsible to have at least one person on the lob at all times. that is 'site supervisor certified 3 The contractor shall adhere to the current permit and contract specifications 4 The locations of all aerial and underground utility facilities may not be indicated on the protect plans The contractor is required to contact the Nebraska and Colorado 811 one call notification center (dial 8111 forty-eight (481 hours prior to working in the oty right of way. No excavation will be permitted in the area of the underground utilities until all facilities have been located and identified to the satisfaction of aII partes. The contractor shall be responsible for protection of all underground and aerial utilities and infrastructure. Whenever underground facilites are in close proximity to the proposed pathway location or whenever the vertical location Of the underground facility rs unknown. the contractor 5h311 use special measures to determine to locations of such underground fackities. a. If the contractor is conducting the excavation by digging from the surface. when in a close proximity to the underground facilities. the contractor shall use hand dg8rg. hydro excavating. or air excava5ng to locate such facility b M the contractor is conducting the excavation by tunneling or boring. the contractor shall deter -rime the vertical location of the underground facility by potholing or any other method approved by the director of public works and util rtes 8 Project plans shah dimension new facilities being installed 7 Unless agreed to in wring in advance the depth of installed facilities in city and county row shall be at a minimum as follows'. a Forty-eight (48I inches in soil b. Forty-eight (481 inches below a projected slope from the flow line of a ditch at a three (31 honzont31 and one 111 vertical slope. r_. Forty-eight 148) inches under a roadway measured from the surface of said roadway to the top of the installation. d Sixty (CO{ inches under a storm water or creek channel design bottom or pipe. and e. Maintain a minimum of Nrenty-four (241 inches of vertical and horizontal spacing from existing u0lmes f 8e located as far from the existing or proposed curb tine as possible to avid potential future conflicts 8. Al non -street surface materials that are disturbed by excavation and backfilling operations shall be replaced and restored 9. City and county street surface materials disturbed shall be backfilled. tamped and repaved by city or county forces or approved paving contractor 10if sidewalkwheel chair 'amps or any portion of the pedestrian facaities are removed or dosed. a pedestrian detour shall be established and maintained during the time of the closure and the entire oedestnan facility shall be restored within seventy-two (721 hours. unless the contactor provides a hard surface alternate route approved by the city or county Al pedestrian detours and any reoonstrutrn+ of pedestrian facitmes shalt meet current Americans with Disability Act (ADA( standards and specifications. 12 Ak pedestrian detours shall be par of an approved Traffic Control Plan (TCPI ' 3 AN holes made in the streets for the purpose of performing vacuum excavations to locate underground utilities shall be restored to their original co clition with the reinstated core flush with and in the onginal onentation as the existing surface matching existing pavement surface appearance. '4. When the contractor is not actively working: an equior erht. fencing. debns, etc. Shall not be placed within Me triangular area required for Sight distance of vehicles exiting or entering an adjacent property or ,ntersec5on_ r 5 AN excavations shall be adeouately fenced and covered when contractor is not present or project site left unattended 11 18 No Sane closures allowed on artenat streets during AM and PM peak hours 17 All work zone traffic control. including pedestrian oonbpl measures. shall be or compliance with the MUTCD and ADA 18. The contractor shah maintain a set of "as built' pians on site with dimensioning These plans shall be presented upon request 19. Final "as -bulk" plans shall be filed with city and/or county within 30 days of the completion of the project 20 The 0Gntractor shall follow construction standards pertaining to the lateral corridor facility placement and minrnum depth requirements and clearance requirements of other facilities 21 A current State, County. or City permit shall be maintained on each work see by the contractor The contractor shag present such pertret upon request. 22 Any field adjustments to instaaation of facilities. which vary from the plans that have been submitted and approved during the permit application process, shall comply with the following-. a The contractor must stop work immediately and contact the facility owner of the proposed changes b The facility owner's representative shall contact the city. county or state nght-of-way construction inspector and provide Mem with the details. c The ROW inspector wilt make a determination on how to proceed This determination may range from approval over the phone or via email to delaying the protect until piens can be updated and appropriate review can be conducted. 23 Stake mounted warring signs and marker posts (8)053) to be placed where appropriate 24 All conduit and fiber is to be installed at the back of the roadway ROW unless otherwise noted 25 Leave 120' loops (80' tails at splice points) for mainline fiber in vaults