ROUTE 18 MEDIAN

OVERVIEW

Project Status Accident Data Comparison with Other State Routes Alternatives Next Steps

PROJECT STATUS

Project Study Report (Complete) Project Report (Jan 2015) Environmental (Jan 2015) Design (June/2016) Construction (July 2017)

SIMILAR HIGHWAYS

Highway 17 Santa Cruz/Santa Clara County

Highway 50 El Dorado County Highway 18 San Bernardino County

HIGHWAY 17 DRIVE

HIGHWAY 50 DRIVE

HIGHWAY 18 DRIVE

ROUTE COMPARISON (ACCIDENT RATES)

* = With Concrete Barrier

*

*

DIST COUNTY HIGHWAY PEAK PM1 PM2 LENGTH ADT 4/1/2002 TO 03/31/2012 (10 YEARS) ELEVATION (MILE) (1000) ACCIDENT RATES (MVM) (FT) ACTUAL AVERAGE (Expected) FAT F+I TOTAL FAT F+I TOTAL

5 SANTA

17 1850

6 12.5 6.5 58.7 0.006 0.53 1.75 0.010 0.42 1.08 CRUZ

4 SANTA 0 7.1 7.1 60.2 0.004 0.35 1.16 0.010 0.35 0.92 CLARA

TOTAL 17 13.6

DIST COUNTY HIGHWAY PEAK PM1 PM2 LENGTH ADT 4/1/2002 TO 03/31/2012 (10 YEARS) ELEVATION (MILE) (1000) ACCIDENT RATES (MVM) (FT) ACTUAL AVERAGE (Expected) FAT F+I TOTAL FAT F+I TOTAL

3 EL 50 4009 23.44 31.55 8.11 18.4 0.006 0.24 0.53 0.007 0.16 0.44 DORADO

DIST COUNTY HIGHWAY PEAK PM1 PM2 LENGTH ADT 4/1/2002 TO 03/31/2012 (10 YEARS)

ELEVATION (MILE) (1000) ACCIDENT RATES (MVM) (FT) ACTUAL AVERAGE (Expected) FAT F+I TOTAL FAT F+I TOTAL

8 SAN 18 4360 8.3 17.7 9.4 17.0 0.048 0.49 1.02 0.008 0.28 0.68

BERNARDINO

Highway 17

Highway 50

Highway 18

RAINFALL COMPARISON

SR-18 SBd CO 10 YEAR- 1hr duration

  PREClPITATlON (IN)   LOCATION  

ELEVATION (FT) AVE PEAK LATITUDE LONGITUDE PM

1505 1.22 1.5 34.17161 -117.2782 8.29

2500 1.37 1.68 34.1938 -117.2786 11.25

3507 1.54 1.89 34.2234 -117.2935 14.3

4220 1.53 1.89 34.2329 -117.2949 17.068

SR-17 SCR/SCL Co 10 YEAR- 1hr duration   PRECIPITATION (IN) LOCATION

ELEVATION (FT) AVE PEAK LATITUDE LONGITUDE PM

690 1.44 1.68 37.0676 -121.9965 6.00

1348 1.59 1.87 37.1118 -121.9763 10.00

1786 1.64 1.95 37.1428 -121.9852 12.50

621 1.4 1.65 37.2036 -121.991/ 5.00

348 1.15 1.35 37.225' -121.9771 7.00

SR-50 ED Co 10 YEAR- 1hr duration   PRECIPITATION (IN) LOCATION

ELEVATION (FT) AVE PEAK LATITUDE LONGITUDE PM

2990 0.76 0.879. 38.7373 -120.7078 23.44

3094 0.771 0.893 38.7353 -120.6818 25.00

3455 0.791 0.918 38.744 -120.6493 27.00

3673 0.832 0.968 38.7491 -120.6139 29.00

3937 0.877 1.02 38.7608 -120.581 31.00

CROSS OVER ACCIDENTS

Ten Year Data 4/1/02 - 3/31/12 - Fatal Collisions = 13 - Injury Collisions = 79 - Property Damage = 39 Total Collisions = 131 Fatalities = 16 Injuries = 157

ALTERNATIVES

Concrete Barrier Metal Beam Guardrail Cable Barrier Delineators Reconfigure Lanes

ALTERNATIVE - CONCRETE BARRIER

ALTERNATIVE - METAL BEAM GUARDRAIL

ALTERNATIVE - CABLE BARRIER

ALTERNATIVE - DELINEATORS

ALTERNATIVE – RECONFIGURE LANES

NO BUILDNO BUILD

NEXT STEPS

Review All Input Received Examine Effectiveness of Each

Alternative Solicit Additional Comments from

Stakeholders Install Delineators on Top Section of SR-

18 September - Present Proposed Solution

for Entire Route (Lake Arrowhead Disaster Meeting)

HIGHWAY 62

One Final Message

Questions ??