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VI. DEFINE CRITICAL DESIGN ELEMENT <br />Critical element is the horizontal curve, which provides for a design speed curve of 25 MPH (182' <br />Radius) with 2% crown, in lieu of the 30 MPH (300' Radius) minimum design speed curve. <br />VII. ESTIMATED ADDITIONAL COSTS <br />A. 30 MPH Curve <br />The additional cost for the 30 MPH curve would include relocation of a pond due to the <br />horizontal design requirements for the 30 MPH curves. This option would also have the <br />added cost of right-of-way acquisition for two properties. The total additional cost over the <br />requested variance would be $195,140 <br />B. 30 MPH Super Elevated Curve <br />The additional cost for the 30 MPH super elevated curve would also include the relocation <br />of a pond due to the design requirements for the 30 MPH curves. This option would also <br />have added cost of right-of-way acquisition for two properties. The total additional cost over <br />the requested variance woul be $240,650 <br />VIII. ACCIDENT DATA <br />There is no history of accidents at this location. <br />IX. TRAFFIC COUNTS <br />A, Existing ADT — 5,350 (2024) <br />B. Projected ADT — 6,290 (2044) <br />X. LEGAL, POSTED SPEED <br />Posted 30 MPH <br />XI. FUTURE IMPROVEMENTS <br />No future improvements are anticipated at this time. <br />XII. SAFETY, MITIGATION <br />Roadway to be signed with 25 MPH advisory and curve signs along with no parking signs, <br />consistent with the MMUTCD Manual, if variance is granted. All options would eliminate a stop <br />condition turning the intersection into a continuous curve improving the safety of said <br />intersection. Sidewalk will also be added through the project area to improve pedestrian safety. <br />XIII. PERTINENT FACTORS <br />The existing curves to the north are 25 MPH curves and have had no recorded accidents. The <br />proposed improvement would be to add another 25 MPH curve at the intersection of Dodge <br />Avenue and 51h Street along with eliminating a stop condition improving the safety of the <br />intersection. <br />Prepared by: Bolton & Menk, Inc. DEFINE CRITICAL DESIGN ELEMENT <br />Dodge Avenue & 51h Street Variance Request I OR1.132180 Page 2 <br />Page 63 of 372 <br />