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Indian River County 1 Impact Fee Update Study <br />Cost Component <br />This appendix presents the detailed calculations for the cost component of the <br />transportation impact fee update. Backup data and assumptions are provided for all cost <br />variables (for county and state roads), including: <br />• Design <br />• Right -of -Way <br />• Construction <br />• Construction Engineering/Inspection <br />• Roadway Capacity <br />Urban Design vs. Rural Design <br />Due to a lack of roadway construction data for rural -design roadways, the cost per lane mile <br />for these types of roads was calculated using an adjustment factor. This factor was based <br />on the rural -to -urban design cost ratio from the most recent District 7 Long Range Estimates <br />(LRE) provided by FDOT. Based on the LRE, the cost for rural -design roadway capacity <br />expansion (new road construction or lane addition) is approximately 83 percent of the cost <br />of urban -design roadway improvements. For all subsequent tables (for county and state <br />roadways), costs are presented for urban -design roadways, with the rural -design roadway <br />costs being calculated using the cost ratio from Table C-1. <br />Table C-1 <br />Urban / Rural Design Cost Factor <br />Improvement <br />0-2 Lanes <br />Cost <br />Rural Design <br />$2,392,343 <br />per Lane Mile <br />Urban Design Ratio <br />$3,383,918 71% <br />0-4 Lanes <br />$1,918,228 <br />$2,382,206 81% <br />0-6 Lanes <br />$1,626,803 <br />$1,944,969 84% <br />2-4 Lanes <br />$2,897,987 <br />$3,439,476 84% <br />4-6 Lanes <br />$3,229,018 <br />$3,833,955 84% <br />4-8 Lanes <br />$2,145,375 <br />$2,532,536 85% <br />6-8 Lanes <br />$4,061,468 <br />$4,569,033 89% <br />Average <br />$2,610,175 <br />$3,155,156 83% <br />Source: FDOT District 7 Long Range Estimates, 2013 <br />Tindale -Oliver & Associates, Inc. <br />June 2014 <br />Indian River County <br />C-1 Impact Fee Update Study <br />217 <br />