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320 (2) County Road C /Prior Avenue, Fairview Avenue /Twin Lakes Parkway — Roseville 321 and Ramsey County 322 (3) Twin Lakes Parkway Roundabouts — City of Roseville 323 324 4.3 Roundabout Peer Review 325 Once the roundabout geometrics are finalized, WSB will enlist the services of MTJ 326 Engineering, currently on the Mn /DOT approved list for roundabout design, to conduct 327 a peer review of the layout and the proposed signing and pavement markings. WSB 328 will incorporate any review comments into the preliminary and final design. 329 4.4 Water, Sanitary Sever and Technology Conduit Sizing and Layout 330 The final design of the municipal utilities will be coordinated with each segment of the 331 project. The design will be based on the findings of the AUAR and Infrastructure 332 Study. Additional improvements to the sanitary sewer will be included based on the 333 findings of the televising report. 334 4.5 Storm Water Modeling, Master Planning and Treatment Design 335 WSB will analyze existing storm water facilities and treatment relative to the recently - 336 updated requirements of the Rice Creek Watershed District regarding infiltration and 337 treatment. Because the majority of the contributing area is impervious, it is quite 338 possible that the amount of runoff and treatment needed would be reduced. 339 Additionally, because the contributing drainage area comprises most of Sub Area I, this 340 analysis will lend itself to a master drainage plan. WSB will devise a master treatment 341 plan prior to the 30% submittal for review by the City, and if acceptable, area 342 developments and property owners. Based on the results of this preliminary planning 343 effort, a roadway storm sewer system and associated treatment design will be designed 344 and included in the 30% plans. 345 4.6 Public Space Concept Definition and Refinement 346 Near the beginning of the project WSB and HKGi will meet with City Public Works, 347 Planning, Community Development and Parks staff to identify project desires and 348 establish a plan to communicate the public space improvements amongst the different 349 departments. Based on this input, up to three concepts will be developed as part of the 350 preliminary design efforts and for presentation to both City Council and at public 351 meetings. 352 4.7 Developer Coordination 353 Once the roadway geometrics and utility alignments /depths have been established, 354 WSB will meet with area landowners and developers to discuss access and utility 355 service needs. It is quite likely that each entity will be at a different stage of their 356 project development. WSB will incorporate their needs as appropriate into the design, 357 while at the same time considering State Aid design requirements for access and sight 358 distance, as well as City utility system demands and capacities. 359 4.8 Staff Approved Layout Submittal — 30% Design 360 WSB will consolidate the preliminary design information into a comprehensive layout 361 for approval by City and County staff. The layout will consist of horizontal and 362 vertical roadway geometrics, roundabout geometrics, roadway profile, design speeds 363 and sight distances, construction limits, right -of -way needs, water /sanitary sewer h