May 2015 The South Dakota Department of Transportation in Conjunction with Yankton County FHWA Disclaimer The preparation of this report has been financed in part through grant(s) from the Federal Highway Administration and Federal Transit Administration, U.S. Department of Transportation, under the State Planning and Research Program, Section 505 of Title 23, U.S. Code. The contents of this report do not necessarily reflect the official views or policy of the U.S. Department of Transportation. SDDOT Disclaimer: The preparation of this report has been financed through the South Dakota Department of Transportation’s SPR Funding for Local Agencies program. The contents and recommendations of this report do not necessarily reflect official views, policy, or endorsement of the South Dakota Department of Transportation. SDDOT Civil Rights Statement: The South Dakota Department of Transportation provides services without regard to race, color, gender, religion, national origin, age or disability, according to provisions contained in SDCL 20-13, Title VI of the Civil Rights Act of 1964, the Rehabilitation Act of 1973, as amended, the Americans with Disabilities Act of 1990 and Executive Order 12898, Federal Actions to Address Environmental Justice in Minority Populations, 1994. To request additional information on the SDDOT’s Title VI/Nondiscrimination policy or the file a discrimination complaint, please contact the Department’s Civil Rights Office at 605-773-3540. Yankton County Master Transportation Plan i SRF Consulting Group, Inc. Table of Contents Table of Contents FHWA DISCLAIMER ........................................................................................................................................................ I SDDOT DISCLAIMER: ...................................................................................................................................................... I SDDOT CIVIL RIGHTS STATEMENT: .................................................................................................................................... I LIST OF FIGURES .................................................................................................................................................... IV LIST OF TABLES ...................................................................................................................................................... V INTRODUCTION AND PURPOSE .............................................................................................................................. 1 TRANSPORTATION SYSTEM GOALS ........................................................................................................................ 3 TRANSPORTATION SYSTEM GOALS..................................................................................................................................... 3 EXISTING CONDITIONS ........................................................................................................................................... 5 DEMOGRAPHICS ............................................................................................................................................................ 5 LAND USE .................................................................................................................................................................... 5 ENVIRONMENTAL ........................................................................................................................................................... 6 MOTORIZED TRAVEL ON STREETS AND ROADWAYS ............................................................................................................... 8 Jurisdiction ........................................................................................................................................................... 8 Route Designation ................................................................................................................................................ 8 Route Designation .............................................................................................................................................. 11 Federal Functional Classification ........................................................................................................................ 12 Federal Aid Routes ............................................................................................................................................. 13 Roadway Surface Type ....................................................................................................................................... 13 Truck Routes and Seasonal Weight Restrictions ................................................................................................ 16 Bridges and Culverts ........................................................................................................................................... 16 Traffic Volumes and Congestion......................................................................................................................... 19 Transportation Safety Analysis........................................................................................................................... 22 NON-MOTORIZED TRANSPORTATION............................................................................................................................... 24 PASSENGER TRANSPORTATION SERVICES .......................................................................................................................... 25 FREIGHT ..................................................................................................................................................................... 26 AIR SERVICE ................................................................................................................................................................ 27 ISSUES AND OPPORTUNITIES .......................................................................................................................................... 27 Mapping Exercise ............................................................................................................................................... 27 Community Survey ............................................................................................................................................. 31 ANALYSIS OF FUTURE TRANSPORTATION NEEDS ................................................................................................. 34 FUTURE GROWTH AREAS .............................................................................................................................................. 34 FUTURE TRAFFIC .......................................................................................................................................................... 36 Methodology ...................................................................................................................................................... 36 2040 Daily Traffic Forecasts ............................................................................................................................... 38 Yankton County Master Transportation Plan i SRF Consulting Group, Inc. Table of Contents FUTURE STATE OF STRUCTURES ...................................................................................................................................... 38 ADDRESSING CURRENT/FUTURE NEEDS .............................................................................................................. 41 ISSUE CATEGORIES AND PRELIMINARY IDEAS FOR ADDRESSING THE ISSUES .............................................................................. 41 Reducing Travel Barriers .................................................................................................................................... 42 Supporting Freight Movement and RV Travel .................................................................................................... 48 Linking Rural Communities to the State Highway System.................................................................................. 51 Supporting Countywide Non-Motorized Travel .................................................................................................. 51 Fostering Economic Growth ............................................................................................................................... 56 Repairing and Replacing Structures ................................................................................................................... 57 Correcting Geometric Deficiencies ..................................................................................................................... 57 INITIAL SCREENING OF ALTERNATIVES .............................................................................................................................. 58 FUNDING EVALUATION ........................................................................................................................................ 65 PROJECT COST ESTIMATES ............................................................................................................................................. 65 Unit Cost Assumptions ....................................................................................................................................... 65 Cost Estimates for Strategies