SUSTAINABLE PAVEMENT ROUND TABLE February 10, 2015 RIVERSIDE COUNTY TRANSPORTATON DEPARTMENT

TOTAL MILES (COUNTYWIDE) FUNCTIONAL CLASSIFICATION CENTERLINE MILES LANE MILES PCI Arterial Collector5541,10770 Residential/Local9131,81571 Gravel/Dirt TOTAL2,1644,376 Overall PCI70

ROAD CONDITION BY DISTRICT DISTRICT 2 DISTRICT 5 DISTRICT 1 DISTRICT 3 DISTRICT 4

PCI BY DISTRICT Overall PCI (70)

FUNDING HISTORY & PCI

ROAD MILES TREATED & PCI

PAVEMENT MANAGEMENT  Program – StreetSaver by MTC  Uses PCI  ASTM D6433 compliant NEWLY PAVED FAILED ROAD

DETERIORATION CURVE

PAVEMENT INSPECTION  Inspection every year on ¼ of road network  Visual inspection by two-man crew  Data collection using tablet device  GIS integration

DATA COLLECTION  Network Level  GPR – layer thickness  FWD – structural condition  Project Level  Coring Rig

PAVEMENT PRESERVATION  Definition - a program employing a network level, long- term strategy by using an integrated, cost-effective set of practices that extend pavement life (FHWA).  County’s Objective - Preserving roads already in good condition.  spending taxpayer’s money cost effectively  developing treatments based on pavement condition by using BMPs

BEST MANAGEMENT PRACTICES  Achieving a target PCI  Seal Coat Treatment  Chip Seal  Slurry Seal  Cape Seal  Scrub Seal

SEAL COAT  Chip Seal  110 – 125 miles per year  RAP Chip  Slurry/Cape/Scrub Seal  60 miles per year  Type 2 RAP Chip

OVERLAYS  Hot mix asphalt  15% RAP  up to 2 inches thick  Rubberized hot mix asphalt  crumb rubber from scrap tires per Greenbook  up to 2 inches thick

RESURFACE/RECONSTRUCT  Mill & Fill  Full Reconstruction  Soil Stabilization (CTB, Lime)  Recycling  CIR o 3-4 inches of total thickness o Corona area (Nov 2012)  FDR o Full depth o Foamed asphalt o Redlands Blvd (Sep 2008)

SEAL COAT PHOTOS

CIR PHOTOS

RESURFACING

LESSONS LEARNED  Slurry Seal  Measurement & Payment – by TON  Full-time inspection  Testing – WTAT, portable truck scale, dipstick  Chip/Cape/Scrub Seal  Separate line item for emulsion and aggregate  Payment for emulsion by TON  Payment for aggregate by SQYD

LESSONS LEARNED  CIR/FDR  Construction timing – Summer/Fall  Longer cure time in cool weather  Swell factor (10%)  Tend to ravel if left uncovered for more than 3 days  Apply fog seal to control raveling  Cost effective for long straightaway roads with minimum road curves and valves

QUESTIONS?