South Mountain Freeway Interchange Selection

Transcription

1 slide 1 South Mountain Freeway Interchange Selection Public Private Partnership (P3)

2 Today s Agenda Project Overview Interchange Selection Pavement Selection Lawsuit Update Design and Construction Q&A

3 Loop 202 South Mountain Freeway 22 new miles 4.5 miles (I-10) 40 bridges 13 interchanges 1 double roundabout 2 half diverging diamond 11 miles noise walls 6 miles shared-use path 5 multi-use crossings 1 system interchange 1 pedestrian bridge

4 Interchange Selection

5 Interchanges

6 Location Design Concept Report Proposal Alternative Technical Concept Development Phase Broadway Rd Diamond - Fwy Over Diamond Fwy Under Diamond - Fwy Over Southern Diamond Fwy Over Diamond Fwy Under Diamond- Fwy Over Dobbins Rd Diamond Fwy Over Diamond Fwy Under Diamond Fwy Over 51 st Ave Spur/Estrella Diamond Fwy Over Diamond Fwy Over Roundabout Fwy Over - Moved to Estrella Dr. 17 th Avenue Diamond Fwy Over Diamond - Fwy Over DDI Fwy Over Desert Foothills Pkwy Diamond - Fwy Over Diamond Fwy Under DDI Fwy Under

7 I-10/SR202L System Interchange Pursuit Phase Alternative Technical Concept

8 I-10/SR202L System Interchange Pursuit Layout same as DCR ATC - NW departs on its own Better Driver Expectation- Right hand exits Similar - US60/I-10 System TI Lesser ROW Footprint

9 Broadway Rd Interchange Pursuit Phase Development Phase

10 Broadway Rd Interchange Fwy Under to Fwy Over City of Phoenix SHROG (2-96 Sewer Line) Protection Earthwork Eliminate Access Rds to Lower Buckeye Replace with Temp Ramps ADOT Directive Change

11 Southern Avenue Interchange Pursuit Phase Development Phase

12 Southern Avenue Interchange Freeway Under to Freeway Over Better Access to Country Gardens School Lesser Utility Impact

13 Dobbins Rd Interchange Pursuit Phase Development Phase

14 Dobbins Rd Interchange Fwy under to Fwy Over SRPI/BOR land acquisition process Improved access to future hospital (NW quadrant) Other future development considerations Utility Sleeves for future Historical site / Goat Barn

15 Estrella Drive Interchange GRIC WELL Pursuit Phase Alternative Technical Concept

16 Estrella Drive Interchange Pursuit diamond 51 st Ave Spur at DCR location Alternative Technical Concept double round about Location shift to Estrella Avoidance of GRIC Well properties

17 17 th Avenue Interchange Pursuit Phase Alternative Technical Concept

18 17 th Avenue Interchange Pursuit Diamond Alternative Technical Concept Convert to ½-DDI Land acquisition residential housing development Connection to existing rdwy Signalization closely matches existing condition

19 Desert Foothills Parkway Interchange POST OFFICE Pursuit Phase Alternative Technical Phase

20 Desert Foothills Interchange Crossroad Over Freeway slightly depressed Diamond to ½-DDI ROW avoidance (Post Office) Highest elevation on the project

21 Pavement Section

22 Subgrade Soils Lower Quality Higher Quality Higher Quality Develop based upon soil conditions Native vs. Borrow Earthwork flow constraints Where is the fill coming from? Farm Fields South Mountain Park area

23 Mainline-Ramp I-10 Mainline (Match Existing - Prescribed) 1 AR-ACFC 15 PCCP SR 202 Mainline AC ACFC ½ Depth AC - Varies 8-9 Depth AB Varies 13 ½ 14 ½ SR 202 Ramps AC AR-ACFC ½ Depth AC Varies 4-6 Depth AB Varies 8-12 Depth

24 Cross Roads Cross Roads PCCP 8-11 ½ Depth AC 2 ½ Depth Acceleration/Deceleration Truck Traffic High Volumes

25 Lawsuit 9 th Circuit Court Decision December 8, 2017 NTP 3 Timing February 7, 2018

26 Design / Construction Update Status

27 PROGRESS

28 Final Design Status Over 500 design submittals 7,500 plan sheets 125 RFC packages Final design schedule Pecos: All RFC ed I-10: All RFC ed Salt River: All RFC ed Center: RFC Summer 2018

29 60 BLASTS TO DATE

30 RECEIVED NOTICE TO PROCEED 3

31 8-MILES OF PIPE TO DATE

32 3.6 M CY OF DIRT MOVED TO DATE

33 I-10/SR202L System TI September 2016 February 2018

34 I-10/SR202L System TI September 2016 February 2018

35 Broadway Rd Interchange September 2016 February 2018

36 Salt River Bridge September 2016 February 2018

37 Salt River Bridge September 2016 February 2018

38 Southern Avenue Traffic Interchange September 2016 February 2018

39 Dobbins Rd Interchange September 2016 February 2018

40 Elliot Rd Interchange September 2016 February 2018

41 Estrella Drive Interchange September 2016 February 2018

42 17 th Avenue Interchange September 2016 February 2018

43 Desert Foothills Parkway September 2016 February 2018

44 24 th Street Traffic Interchange September 2016 February 2018

45 40 th Street Traffic Interchange September 2016 February 2018

46 INFORMATION Hotline: SMF-L202 ( ) Español: Website: Add COUNT DOWN CLOCK -----

47 QUESTIONS