OR42: County Line

Slide Repair, Phase 4

Key # 21182

Presentation to the Mobility Advisory Committee

Jan 10, 2019

CamasValley

Remote

Winston

PROJECT LOCATIONOR 42, mile point 44.6 – 45.9

PROJECT SCHEDULE

• Bid Opening: May 15, 2019

• PS&E Due: February 19, 2019

• Construction: Summer – fall 2019

• Nearing completion of OR42:

County Line Curves project

• Excavation completed and new

alignment base constructed

• Worked stopped for the winter

• Paving planned for following

spring

PROJECT BACKGROUND AND SCOPE

• A December 2015

landslide covered the new

highway alignment

• Phases 1-3: Remove slide

material and reopen the

highway; install drains; and

retaining walls

• Phase 4: Complete the

retaining walls; complete

the realignment and

paving; replace a

damaged culvert; and

haul remaining slide

material

PROJECT BACKGROUND AND SCOPE

ROADWAY CHACTERISTICS

• The highway is

constrained by the river

and steep, unstable slopes

• Two 12-foot lanes with 6-

foot shoulders

• 2017 ADT: 2,500

• Percent trucks: 23.4%

PROJECT STAGING & MOBILTY IMPACTS

• Excavation and

retaining wall: Work is off

the shoulder

• Roadway realignment

and paving: Single lane

under flaggers. Width

varies, but all wide loads

can be accommodated

• Culvert replacement:

Three construction

stages

PROJECT STAGING & MOBILTY IMPACTS

• County Line Slide Culvert, Stages 1 and 3:

• 19’ of pavement with barrier on one side; at least 3

feet of shoulder will be clear outside of pavement

PROJECT STAGING & MOBILTY IMPACTS

• County Line Slide Culvert, Stage 2:

• 19’ of pavement between hard barrier on slight curve

• Contractor will have 14 consecutive days to complete

Stage 2 once in place

CRITICAL ROUTE PAIR – OR 38

• OR38: Hoagland Cr and Unnamed Cr Culverts -

Potential conflict.

• Replace two large culverts on OR 38. Part of the

OR38/US101 Culvert Pilot Project

• Both culverts require one stage of 19’ between hard

barrier. Contractor will have 14 consecutive days to

complete each Stage 2 once in place

• This may result in a paired route conflict of up to 14 days

for loads wider than 16 feet.

Questions?