PROJECT DESCRIPTION_OR FLAP DOT CRGNSA 100(8).pdf

OR FLAP DOT CRGNSA 100(8), Multnomah Falls Viaducts Repairs

Columbia River Gorge National Scenic Area

Multnomah County, Oregon

The project includes repair of two historic concrete viaduct structures located on either side of Multnomah Falls Lodge. Repair work includes concrete patching, crack injection, rebar repair, cathodic protection, polymer concrete deck overlay, beam shear strengthening, wall repair, and surface coating. One viaduct is approximately 403-feet long and one is 864-feet long.

Project length: 2.6 miles

Tentative Fixed Completion Date: Spring 2026

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

Estimated Price Range: $5 million to $7 million

Location: 17 miles E of Troutdale, OR

DESCRIPTION OF WORK in US CUSTOMARY UNITS

FP-14

O n e S ch ed u le

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A

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 (erosion control devices) Fiber Roll Check Dam Inlet Protection Stabilized Construction Exit

2,350 LNFT

4 EACH

2 EACH

3 EACH

DIVISION 200 – Earthwork

201 Clearing & Grubbing 0.50 ACRE

203 Removal of Structures & Obstructions Removal Sign/Marker Remove of Curb, Concrete Removal of Structures and Obstructions

4 EACH

60 LNFT

ALL

204 Excavation & Embankment Roadway Excavation

160 CUYD

205 Blasting Consultant (Consultant/Engineering Services) (yes/no) No

207 Earthwork Geosynthetics 1,300 SQYD e S ch ed ed u

208 Structure Excavation 33 CUYD

DIVISION 250 – Slope Reinforcement and Retaining Walls

251 Riprap Keyed Riprap, Method A, Class 1 14 CUYD

DIVISION 300 – Aggregate and Base Courses

301 Untreated Aggregate Courses Aggregate Base Grading C 140 CUYD

302 Minor Crushed Aggregate Roadway Aggregate, Method 2 100 CUYD

DIVISION 400 – Asphalt Pavements & Surface Treatments

403 Asphalt Concrete 300 TON

412 Asphalt Tack Coat (asphalt surface treatment) 3 TON

413 Asphalt Pavement Milling Asphalt Pavement Milling Asphalt Pavement Milling, 4-Inch Depth Asphalt Pavement Milling, 5-Inch Depth

1,600 SQYD

800 SQYD

1,800 SQYD

DIVISION 550 – Bridge Construction

552 Structural Concrete Repair Concrete (Patching and Cathodic Protection) Repair Concrete (Rail Patching) Repair Concrete (Epoxy Coating) Repair Concrete (Rail Epoxy Coating) Clean Concrete Surface Grout

415 SQYD

21 SQYD

44 LNFT

170 LNFT

ALL

650 CUFT

554 Reinforcing Steel 44,500 LB

561 Structural Concrete Injection & Crack Repair 780 LNFT

562 Temporary Works ALL

563 Painting (structures, painting) 13,810 SQFT

569 Concrete Overlays For Bridge Decks Concrete Overlay, Class HPC(O) 2,470 SQYD

575 Minor Bridge Work Minor Bridge Work (Beam Shear Strengthening) Minor Bridge Work (Deck Dowels)

ALL

ALL

DIVISION 600 – Incidental Construction

609 Curb & Gutter Curb, Concrete, 12-Inch Depth Recondition Curb

60 LNFT

165 LNFT

619 Fences, Gates, Cattle Guards & Bollard Posts Fence, Chain Link, 72-Inch Height Gate, Chain Link, 20 Feet Width Remove and Reset Fence

160 LNFT

1 EACH

20 LNFT

e S ch ed ed u

620 Stone Masonry Remove and Reset Dry Laid Wall Clean Stone Masonry Surfaces (Re-chinking)

210 LNFT

850 SQYD

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

622 Rental Equipment (yes/no) No

623 General Labor (yes/no) No

625 Turf Establishment 2,000 SQYD

633 Permanent Traffic Control (traffic control devices) Remove and Reset Sign 15 EACH

634 Permanent Pavement Markings Pavement Markings, Type A, Solid Pavement Markings, Type H (Shuttle Loading) Pavement Markings, Type A, Straight Arrow Pavement Markings, Type B, Accessibility Symbol

13,000 LNFT

200 SQFT

4 EACH

6 EACH

635 Temporary Traffic Control Barricade Type 2 Barricade Type 3 Tubular Marker, Type 28-Inch Drum Portable Changeable Message Sign Crash Cushion (Inertial Barrel System) Crash Cushion (Narrow Site System Repair) Crash Cushion (Narrow Site System) Replacement Barrels for Crash Cushion (Interial Barrel System) Raised Pavement Marker (Reflective) Traffic Signal System (Flagger Station Light) Crowd Control Barricade Moving Concrete Barrier Pavement Markings Pavement Marking Removal Construction Sign Pavement Markings, Symbols and Letters Flagger Traffic Control Supervisor Railroad Flagger (24-Hour, 7-Days/Week) Railroad Flagger (Daytime)

6 EACH

8 EACH

30 EACH

70 EACH

3 EACH

1 EACH

3 EACH

3 EACH

5 EACH

200 EACH

4 EACH

450 LNFT

1,550 LNFT

3,000 LNFT

4,800 LNFT

1,550 SQFT

2,500 SQFT

2,300 HOUR

805 DAY

ALL

ALL