PROJECT DESCRIPTION_OR FLAP DOT 46(1).pdf

OR FLAP DOT 46(1), Oregon Caves Highway (OR 46) Restoration

Oregon Caves National Monument and Preserve, Josephine County, Oregon

The proposed contract action is for a firm-fixed-priced construction contract for a

3.6-mile project in Josephine County, Oregon, which includes grading, aggregate base, sub-excavation, drainage, paving, temporary traffic control, soil erosion control, and mechanically-stabilized earth (MSE) wall construction. The primary objective of the proposed contract is to grind and inlay 3.5-inches of existing asphalt on OR 46 from the National Park Service boundary at MP 15.7 to the

Oregon Caves parking lot at MP 19.3. The project will also mitigate critical slide, fill slope, and culvert issues that negatively impact the existing safety and maintenance of the highway.

Project length: 3.6 miles

Tentative Fixed Completion Date: Fall 2023

(Once solicitation is issued, see FAR Clause 52.211-10 for exact date.)

Estimated Price Range: $3 million to $5 million

Location: 20 miles E of Cave Junction, Oregon

DESCRIPTION OF WORK in US CUSTOMARY UNITS

FP-14

O n e

S ch ed u le

DIVISION 150 – Project Requirements

152 Construction Survey & Staking (yes/no) Yes

153 Contractor Quality Control and Assurance (yes/no) Yes

154 Contractor Sampling & Testing (yes/no) Yes

155 Schedules for Construction Contracts (construction schedules) (yes/no) Yes

157 Soil Erosion & Sediment Control Silt Fence Fiber Roll Inlet Protection

350 LNFT

1050 LNFT

3 EACH

DIVISION 200 – Earthwork

201 Clearing & Grubbing SQYD

203 Removal of Structures & Obstructions Removal of Pipe Culvert Removal of Guardrail Soldier Pile Wall

1 EACH

1425 LNFT

1 LPSM

204 Excavation & Embankment Roadway Excavation Subexcavation Select Borrow

500 CUYD

500 CUYD

600 TON

O n e

S ch ed u le

207 Earthwork Geosynthetics Separation-Stabilization Geotextile, Class 1, Type D (woven) Geogrid, Stabilization

600 SQYD

1,000 SQYD

DIVISION 250 – Slope Reinforcement and Retaining Walls

255 Mechanically-Stabilized Earth Walls Welded Wire Face 2,000 SQFT

DIVISION 300 – Aggregate and Base Courses

302 Minor Crushed Aggregate Roadway Aggregate, Method 2 Roadway Aggregate, Shoulder Finishing

600 TON

19,500 LNFT

DIVISION 400 – Asphalt Pavements & Surface Treatments

401 Asphalt Concrete Asphalt Concrete Pavement, Gyratory Mix, 1/2-Inch Or 3/4-Inch Nominal Maximum Size Aggregate, 0.3 To <3 Million Esal 9,000 TON

412 Asphalt Tack Coat 45.0 TON

413 Asphalt Pavement Milling Asphalt Pavement Milling, 3 ½-inch depth 48,600 SQYD

DIVISION 600 – Incidental Construction

602 Culverts & Drains 24-Inch Pipe Culvert 30 LNFT

607 Cleaning, Relaying, and Repairing Existing Drainage Structures Cleaning Culvert In Place 31 EACH

617 Guardrail Guardrail System MGS, Type 2, Class A Steel Posts Terminal Section, Type MGS Tangent Terminal Section, Type MGS-BAT

1,400 LNFT

10 EACH

2 EACH

621 Monuments & Markers (construction survey & staking) (yes/no) No

622 Rental Equipment (yes/no) Yes

623 General Labor (yes/no) Yes

634 Permanent Pavement Markings Type B, Solid (Yellow) Type B, Sold (White)

78,500 LNFT

78,500 LNFT

635 Temporary Traffic Control – Flagger 200 HOUR

635 Temporary Traffic Control – Traffic Control Supervisor DAY

635 Temporary Traffic Control – Portable Changeable Message Sign DAY

635 Temporary Traffic Control Tubular Marker Concrete Barrier Construction Sign

100 EACH

320 LNFT

200 SQFT