DUN UNCAN AN, , AR ARIZ IZONA ONA HI HIGHW HWAY Y AND LE - PowerPoint PPT Presentation

DUN UNCAN AN, , AR ARIZ IZONA ONA HI HIGHW HWAY Y AND LE AN LEVEE EE AL ALIG IGNMENT MENT Ashley Charlton, Leslie Sorenson, Morty Jim Client: Phil Ronnerud, Greenlee County Engineer Technical Advisor: Brendan Russo, PhD Grader: Mark Lamer, PE CENE 486C- 12/7/2018 1

■ This project has been going on for 4 years  Year 1: Floodplain Analysis 1-D Model and Conceptual Levee Alignment Along Gila River (2015)  Year 2: Floodplain Analysis 2-D Model (2016)  Year 3: Flood Mitigation (2017)  Year 4: Hig ighway y and L d Levee Al Alig ignme ment t (2018) 8) 2 Figure 1: Map of Duncan, Arizona

Figure 2: Map of Duncan, AZ, Floodplain Zone [3] 3

Cra rash sh Data ta An Analys lysis is Table 1: 2017 ADOT Data Report [1] [2]. Nu Numb mber er of Crashe hes Nu Numb mber er of People le Alcoh ohol l Relat ated Property Damage Town Total Fatal Injury Only Killed Injured Crashes Killed Injured Dunc ncan 3 1 1 1 1 2 1 1 0 Figure 3: Map of Duncan, AZ, Intersection of 4 Main Street (SR 75) and Railroad Ave (SR 70)

Tra raffic ic An Analysis lysis Table 2: 2017 ADOT data report [1] [2]. AADT Report Rout ute BMP 1 EM EMP 2 AA AADT 3 SR 75 378.92 379.46 2,792 US 70 349.48 378.48 1056 378.48 378.91 1567 378.91 379.48 3470 Crash sh Data Coun unty ty Nu Numbe mber r of Crash shes es Greenlee 84 5

Tra raffic ic Ch Char aract acteristics eristics Table 3: 2017 ADOT Data Report [1] [2]. Terms Value Average Annual Daily 2184 Vehicles Traffic (AADT) 2017 Table 4: 2017 ADOT Data Report [1] [2]. Growth Factor 1% Terms Criteri eria K Factor- the proportion of AADT 9% Existing Speed 45 miles per hour occurring in 1 hour Estimated Free Flow Speed 39.5 miles per hour D Factor-% of traffic moving in the 59% Design Speed 60 miles per hour peak travel direction Lanes 2 Average Annual Daily Traffic- 129 Vehicles Slopes of Elevated Highway 4 Horizontal: 1 Vertical Single Trucks Shoulder Length 6 feet on each side Average Annual Daily Traffic- 85 Vehicles Combo Trucks Current LOS A T Factor- % of trucks in 1 hour 10% Future Annual Average Daily 2925 Vehicles Traffic 6

Ex Existing sting Fea eatures tures 7 Figure 4: Map of Duncan, AZ Existing Features

Cor orri ridor dor De Design ign Corridor dor Design Turning Lane (12’) 12 feet Slope (2 sides) 51 feet Lane Width (2 lanes) 24 feet Shoulder Width (6’ 12 feet each side) Total Average Width 99 feet 8 Figure 5: Typical Cross Sections of the Levee Design

Le Levee ee Roa oad d Al Alignm gnment ent Op Options tions Alignment Option 1: Raising Alignment Option 2: Running Alignment Option 3: Current Highway Along Agricultural Dike Running Parallel to Railroad Legend: on Agricultural Land Corridor Existing Highway 9 Gila River

Ali lignm gnment nt Option ption 1: 1: Ra Raising ising Current urrent Hi Highw ghway • Max Corridor Width- 108 feet • LOS A • Design Speed of 60 mph Legend: Corridor Existing Highway Gila River 10 Figure 6: Schematic for Horizontal Alignment Option 1 [4]

Hi High ghway y Capacity pacity Sof oftw tware are (H (HCS) Alignment Option 1: Raising Current Highway Table 5: HCS Input Data for Alignment Option 1 [5] Input ut Data Term Value Highway Class Class 2 • Level of Service Shoulder Width 6 feet (LOS): A Lane Width 12 feet • Design Speed of 60 Results sults Terrain Type Level mph- achieved Peak- Hour Factor, PHF 0.88 • Percent Time Spent % No-Passing Zone 100 Following: 34.4% Access Points/Miles 14 Two-Way Hourly Volume, 105 V vehicles/hr Directional Split 60/40 % 11

Alignment ignment Op Opti tion on 1: Rais ising ing Cur urrent rent Highw ghway- Horizontal izontal Alig ignment nment Levee Length: 1.30 Miles Cut Material: 1,300 Cubic yards Fill Material: 85,300 Cubic yards Removal of 22 Homes 12 Figure 7: Alignment Option 1- Horizontal Alignment

Alignment ignment Op Opti tion on 1: Rais ising ing Cur urrent rent Highw ghway- Ver ertic tical al Alignm ignment ent Maximum Existing Elevation: 3669' Minimum Existing Elevation: 3641' Levee Elevation: 3650' -3655' Figure 8: Alignment Option 1- Vertical Alignment 13

Al Alig ignm nmen ent Op t Opti tion on 2: 2: Run unni ning ng Al Alon ong Agric icult ultural ural Di Dike • Max Corridor Width- 108 feet • LOS A • Design Speed of 60 mph Legend: Corridor Existing Highway Gila River 14 Figure 9: Schematic for Horizontal Alignment Option 2 [4]

Hi High ghway y Capacity pacity Sof oftw tware are (H (HCS) Alignment Option 2: Running Along Agricultural Dike Table 6: HCS Input Data for Alignment Option 2 [5] Input ut Data Term Value Highway Class Class 2 • Level of Service Shoulder Width 6 feet (LOS): A • Design Speed of 60 Lane Width 12 feet Result sults mph- achieved Terrain Type Level • Percent Time Spent Peak- Hour Factor, PHF 0.88 Following: 34.4% % No-Passing Zone 100 Access Points/Miles 3 Two-Way Hourly Volume, 105 V vehicles/hr. Directional Split 60/40 % 15

Alignm ignment ent Opti tion on 2: Run unni ning ng Along ong Agricultura icultural l Di Dike- Horizontal izontal Alig ignm nmen ent Levee Length: 1.91 Miles Cut Material: 4,500 Cubic yards Fill Material: 138,000 Cubic yards Removal of 41 Homes 16 Figure 10: Alignment Option 2- Horizontal Alignment

Alignm ignment ent Op Opti tion on 2: Run unning ning Along ong Agr gricultural icultural Di Dike- Ver ertic tical al Alignm ignment ent Maximum Existing Elevation: 3661' Minimum Existing Elevation: 3641' Levee Elevation: 3650'-3661' 17 Figure 11: Alignment Option 2- Vertical Alignment

Alignm ignment ent Opti tion on 3: Run unni ning ng Pa Parallel rallel to Railr ilroad oad on Agr gricultural icultural • Max Corridor Width- 124 feet • LOS A • Design Speed of 60 Legend: Corridor Existing Highway Gila River 18 Figure 12: Schematic for Horizontal Alignment Option 3 [4]

Hi High ghway y Capacity pacity Sof oftw tware are (H (HCS) Alignment Option 3: Running Parallel to Railroad on Agricultural Table 7: HCS Input Data for Alignment Option 3 [5] Input ut Data Term Value Highway Class Class 2 Shoulder Width 6 feet • Level of Service (LOS): A Lane Width 12 feet • Design Speed of 60 Terrain Type Level Results sults mph- achieved Peak- Hour Factor, PHF 0.88 • Percent Time Spent % No-Passing Zone 100 Following: 34.4% Access Points/Miles 3 Two-Way Hourly Volume, 105 V vehicles/hr Directional Split 60/40 % 19

Alignm ignment ent Op Opti tion on 3: Run unning ning Pa Paralle rallel l to Railr ilroad oad on Agr gricultural icultural- Horizontal rizontal Alignm ignment ent Levee Length: 2.12 Miles Cut Material: 1,300 Cubic yards Fill Material: 171,000 Cubic yards Elevated Intersection with SR 75 at Elevation 3656' Take over approximately 26 acres of land 20 Figure 13: Alignment Option 3- Horizontal Alignment

Al Alignment nment Op Option tion 3: Runni nning ng Par Paral allel lel to Rai ailr lroad oad on Agricultural cultural- Verti tical cal Ali lignment gnment Maximum Existing Elevation: 3670' Minimum Existing Elevation: 3638' Intersection Elevation: 3655.7' Levee Elevation: 3650'- 3670' Figure 14: Alignment Option 3- Vertical Alignment 21

Cost ost Assessme ssessment nt- La Land nd Val alue ue Assessment ssessment Table 8: Land Value Assessment Individual Costs [6] Cost st Range of Housing Cost $1,400-193,000 Cost Per Acre of Agricultural Land $13,000 Table 9: Land Value Assessment Total Costs [6] Design ign Al Alternativ rnative Cost st Per Un Unit Tot otal al Cost st Alternative 1: Along Existing Highway 22 Homes $1,430,400 Alternative 2: Along Agricultural Dike 41 Homes $2,416,400 Alternative 3: Along Agricultural Land Approximately 26 Acres of Land $338,000 22

Cos ost t Ass Assess essme ment nt- Qu Quan anti tity ty Tak ake-of off Table 10: Design Individual Costs [7] Cost st Cut $9 / Cubic yard Fill $18 / Cubic yard Levee $1,922 / Linear Foot Table 11: Design Parameters [7] Cut t (yd 3 ) Fill l (yd 3 ) Levee e Length gth (ft) t) Alternative #1 1,229 85,293 6,800 Alternative #2 4,450 138,257 10,077 Alternative #3 1,240 170,939 11,190 23

Cos ost t Ass Assess essme ment nt- Al Alter erna nati tives es Tota tal l Cos ost Table 12: Alternatives Total Cost Alignme Al nment nt #1 Alignme Al nment nt #2 Al Alignme nment nt #3 Material Cut $11,054 $40,042 $11,159 Cost Material Fill $1,535,261 $2,488,615 $3,076,893 Cost Land Value $1,430,400 $2,416,400 $338,000 Levee Length $13,069,600 $19,367,885 $21,507655 Cost 20-year $1,166,638 $1,145,109 $1,271,619 Maintenance Cost 20% Feasibility $17,210,315 $25,458,049 $26,205,326 Blow-up Tot otal al Cost $20,650,0 0,650,000 00 $30,550,0 0,550,000 00 $31,500,0 ,500,000 00 24

Fi Final nal Su Summ mmar ary y Tab able le Table 13: Final Summary Table Value ue Al Alignm nment nt 1 Al Alignm nment nt 2 Al Alignm nment nt 3 Total Cost $28,650,000 $30,550,000 $31,500,000 Agricultural N/A N/A Approx. 26 Land Acres Property Taken 23.6 23.2 25.7 (Acres) Houses Taken 22 41 N/A Properties 30 51 30 Taken Divides the City Yes Yes No 25