TIC 2019-02-20 Item 3C - Discussion - Proposed 2019 Small Drainage Program

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Priority Ranking Problem Statement Project Description Cost 4 On S. 133`d from Macadam Bridge to Weir Box on S. l 34th — Need to pipe problem ditch. Problem with trees, loose leaves, plugged ditch and storm structure, flooding over roadway and surrounding area. Install 600 feet of 24" pipe and (3) Type 11 manholes. Construction $150,000 Eng/Cont 25% 37,500 Total $187,500 4 On 37' Ave South from S. 126" to S. 128th, then down S. 126t1' to creek — Old mismatched pipe is broken, junk system etc. Replace 750 feet of 12" pipe and install (12) catch basins. Construction $200,000 Eng/Cont 25% 50.000 Total $250,000 4 On S. 130th at East Marginal Way on west side — Old mismatched pipe is broken, junk system etc. From East Marginal Way to 34' — Both sides of road, new system. Replace pipe from ditch on north side crossing with 950 feet of 12" pipe and (15) catch basins, including angle across street. Construction $250,000 Eng/Cont 25% 59,375 Total $309,375 5 Off S. 135th between 37h and 35th — Local crawl space flooding due to no drainage in private alley. Install drainage and hook up homes. Work on Private Alleyway, need petition from property owners for project to proceed. Construction Eng/Cont 15% Total 4 Large Contech pot style vault at Gilliam Creek crossing on S. 154' — vault needs better access for pot cleaning and replacement. Pull lid from vault and add 2-3 feet riser section asphalt area. Add fences and gates for vehicle access for cleaning. Construction $ 25,000 Eng/Cont 25% 6,250 Total S31,250 4 Dead end of S. 109th and 50th— Gravel driveway, home below this issue could be a problem with any directing water over bank. Water runs off S. 109th to 50`h, gravel driveway, washing ruts and flooding home. No easy fix — asphalt, pipe, catch basin, berm to bank?? Construction Eng/Cont 20% Total