DRAFT Preliminary Engineering Report TAMPA HILLSBOROUGH EXPRESSWAY AUTHORITY South Selmon Expressway (SR 618) from Himes Avenue to Whiting Street Project Development and Environment (PD&E) Study Hillsborough County, Florida Tampa Hillsborough Expressway Authority Number: HI-0112 Efficient Transportation Decision Making (ETDM) Number: N/A Draft Preliminary Engineering Report Contents 1.0 Project Summary ............................................................................................................................ 1 1.1. Project Description ..................................................................................................................................................... 1 1.2. Purpose and Need ...................................................................................................................................................... 3 1.3. Related Projects ........................................................................................................................................................... 4 1.3.1. South Selmon Safety Project ......................................................................................................................... 4 1.3.2. Selmon Extension ............................................................................................................................................... 4 1.3.3. Whiting PD&E Study ......................................................................................................................................... 4 1.3.4. East Selmon PD&E Study ................................................................................................................................ 4 1.4. Commitments ............................................................................................................................................................... 6 1.4.1. Cultural Resources ............................................................................................................................................. 6 1.4.2. Natural Resources .............................................................................................................................................. 6 1.4.3. Highway Traffic Noise ...................................................................................................................................... 7 1.4.4. Contamination ..................................................................................................................................................... 7 1.5. Description of the Preferred Alternative............................................................................................................. 7 2.0 Existing Conditions ........................................................................................................................ 8 2.1. Existing Roadway Conditions .................................................................................................................................. 8 2.1.1. Roadway Classification ..................................................................................................................................... 8 2.1.2. Typical Section .................................................................................................................................................... 8 2.1.3. Right-of-Way ....................................................................................................................................................... 8 2.1.4. Pavement Type and Condition ...................................................................................................................... 9 2.1.5. Design and Posted Speed Limit .................................................................................................................... 9 2.1.6. Horizontal and Vertical Alignments ............................................................................................................ 9 2.1.7. Multi-modal Facilities ..................................................................................................................................... 13 2.1.8. Access Classification, Interchanges and Intersections ....................................................................... 15 2.1.9. Traffic DataDRAFT ......................................................................................................................................................... 21 2.1.10. Roadway Operational Conditions .............................................................................................................. 30 2.1.11. Crash Data ........................................................................................................................................................... 35 2.1.12. Railroad Crossings ........................................................................................................................................... 36 2.1.13. Drainage System .............................................................................................................................................. 36 i Draft Preliminary Engineering Report 2.1.14. Floodplain ........................................................................................................................................................... 41 2.1.15. Lighting ................................................................................................................................................................ 41 2.1.16. Existing Intelligent Transportation Systems ........................................................................................... 42 2.1.17. Utilities ................................................................................................................................................................. 42 2.1.18. Soils Classifications .......................................................................................................................................... 44 2.1.19. Aesthetic Features ............................................................................................................................................ 47 2.1.20. Traffic Signs ........................................................................................................................................................ 47 2.1.21. Adjacent Land Use ........................................................................................................................................... 47 2.2. Existing Structure Conditions ............................................................................................................................... 49 2.2.1. Bridge Information .......................................................................................................................................... 49 2.2.2. Span Arrangement ........................................................................................................................................... 51 2.2.3. Horizontal and Vertical Clearances ........................................................................................................... 55 2.2.4. Geotechnical Information ............................................................................................................................. 56 2.2.5. Historical Significance .................................................................................................................................... 58 2.2.6. Bridges over Water .......................................................................................................................................... 58 2.2.7. Ship Impact Data .............................................................................................................................................. 58 2.3. Environmental Characteristics .............................................................................................................................. 58 2.3.1. Social Environment .......................................................................................................................................... 58 2.3.2. Cultural Environment ...................................................................................................................................... 58 2.3.3. Natural Environment ....................................................................................................................................... 59 2.3.4. Physical Environment ...................................................................................................................................... 59 3.0 Future Conditions Analysis .......................................................................................................... 60 3.1. Future Land Use and Context Classification .................................................................................................... 60 3.2. Future Transportation Demand ........................................................................................................................... 60 3.2.1. Alternatives Screening .................................................................................................................................... 60 3.2.2. Future TrafficDRAFT Volumes ................................................................................................................................... 61 3.2.3. Design Year (2046) Traffic Operational Analysis .................................................................................