Innovative engineered infrastructure solutions for drainage projects

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© 2015 Armtec LP • Confidential & Proprietary
Doug Lowry,
P.Eng.
Region Engineer
Armtec, Drainage
Solutions
Drew Willms
Sales Engineer
Armtec, Drainage
Solutions
INNOVATIVE ENGINEERED INFRASTRUCTURE SOLUTIONS
FOR CHALLENGING DRAINAGE PROJECTS
FRIDAY JUNE 5 TH, 2015 / 9AM PST / 11AM CST / 12PM EST
TECHNICAL WEBINAR

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Armtec is one of Canada’s largest infrastructure
company supplying precast, corrugated steel and HDPE
products and solutions. Every day, our proven products,
engineered solutions and dedicated people are counted
on to support construction and infrastructure projects in
communities everywhere. With a national presence and a
local focus on exceptional customer service, we are
dedicated to building excellence.
ABOUT ARMTEC

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YOUR SPEAKERS
Doug Lowry P.Eng.
Region Engineer
Armtec, Drainage Solutions
Doug.Lowry@armtec.com
Drew Willms
Sales Engineer,
Armtec, Drainage Solutions
Drew.Willms@armtec.com

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AGENDA
Innovative Engineered Infrastructure Solutions for Challenging
Drainage Projects
1. Pennask Culvert Rehabilitation
2. YVR Detention System
3. Noisy River Bridge
4. Putnam Rail Trestle Replacement

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Innovative Engineered Infrastructure Solutions for
Challenging Drainage Projects
PENNASK CULVERT
REHABILITATION

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PROJECT BACKGROUND
Owner: BC MOTI
Consultant: Associated Engineering
Contractor: PW Trenchless
Location: Pennask Tributary Creek, 50km
outside of Kelowna, BC along Highway 97C
Existing Culvert Condition: 2440mm Span x
1739mm Rise Galvanized Multi-Plate
INNOVATIVE ENGINEERED INFRASTRUCTURE SOLUTIONS FOR CHALLENGING DRAINAGE PROJECTS

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PROJECT BACKGROUND
Project Requirements
• Restore structural capacity of the culvert
• 75+ year service life

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PROJECT BACKGROUND
Challenges & Project Conditions
• Approximately 30ft. surcharge
• Timeline – difficult winter conditions
• Max. water velocity  3.0 m/sec with
sand and gravel bedloads
• Acidic drain rock
• Water inside conduit: 4 ≤ pH ≤ 9
• Leachate from acidic surcharge
(3 ≤ pH ≤ 9) around conduit/grout

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STRUCTURAL PLATE
Product Galvanized Aluminum Strata-CAT
Multi-Plate  
Mini-Span 
Bridge-Plate  
Tunnel Liner Plate   
Aluminum SPCAP 
Durability
3 coatings types are available to
address varying site conditions:
• Galvanized
• Aluminum
• Strata-CAT Polymer Coating

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STRUCTURAL PLATE DURABILITY
Coating Selection Criteria

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1Durability of Structural Plate Corrugated Steel Pipe and Deep Corrugated Structural Plate Structures,, February 27, 2012
Estimated Material Service Life (EMSL)
Approach for Galvanized SPCSP1

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Strata-CAT Polymer Coating
= Add-On Life
Zinc Primer
Estimated Material Service Life (EMSL)
Approach for Polymer Coated SPCSP

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PENNASK CULVERT RELINE
Solution
• Reline with 2046 x 1538mm Polymer Coated Multi-Plate Pipe Arch
• Polymer Coated hardware
• Aluminum fish baffles
• 4mm crown plates
• 6mm invert plates

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Installation
1) Dewatering & Cleaning 2) Install Rails/Bracing 3) Prepare Staging Area 4a) Assemble & Slipline

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4b) Sliplining (continued) 5a) Grouting 5b) Grout Inspection 6) End Treatments
Installation

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YVR DETENTION SYSTEM

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PROJECT BACKGROUND
Owner: Vancouver Airport Authority
Consultant: Urban Systems Ltd.
Contractor: Hexcel Construction Ltd.
Location: Vancouver International Airport

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PROJECT BACKGROUND
Project Requirements
• Design for 200m3 storage volume
• Minimum 75 year service life
• Minimal infiltration/exfiltration

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PROJECT BACKGROUND
Challenges & Constraints
Geometric
• Needed to fit the system in a trench
width of 4.5m
• Maximum depth of the system was
1.9m due to a high water table
• Total available footprint was 60m x
4.8m
Time-dependent
• Needed the system onsite within 4
weeks of order placement

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Solution
2 x 55m runs of 1400mm Hel-Cor CSP
• Trenchcoat Polymer Laminated
• H-500 Hugger-Band Couplers

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STORMWATER DETENTION
CSP Detention Systems
• Hel-Cor & Ultra-Flo CSP
• Pre-fabricated bulkheads & fittings
Hel-Cor CSP Detention System Bulkheads & Risers

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CSP Detention Systems
• Aluminized & Trenchcoat Polymer-Laminated for superior durability
• Smooth interior of Ultra-Flo simplifies maintenance
Polymer-Laminated CSP Detention Tanks Ultra-Flo Tank w/ Bulkheads, Risers,
& Flow-Restricting Outlet Stub

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Design Considerations for CSP Detention Systems
1. Required storage volume
2. Geometry / footprint
3. Required lifespan
4. Pre-treatment
5. Infiltration / exfiltration
6. Outflow / release structure
7. Maintenance

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Advantages of CSP Detention
• Customizable shape, size, layout
• Cost effective
• Familiar installation methods
• Easy maintenance
• Can perforate to create a retention / infiltration system

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HDPE Detention Systems
• Steel-reinforced HDPE for superior durability
• Up to 3000mm dia. for storage of large volumes
• Pre-fabricated bulkheads & fittings
• Watertight system
DuroMaxx Detention System DuroMaxx Detention Tank w/
Bulkhead & Access Riser

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NOISY RIVER BRIDGE

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NOISY RIVER BRIDGE
• Owner: County of Dufferin
• Consultant: R. J. Burnside & Associates
• Project: Replacing Cast in Place Box Culvert

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NOISY RIVER BRIDGE
Major Site Constraints:
• Couldn’t close road
• Couldn’t enter or contaminate stream
• Contract limits = County Right of Way

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NOISY RIVER BRIDGE
Stage 1 - Construction
Temporary Geotextile Wall

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Temporary Wall Construction
1. Pull geotextile tight, keep tension applied
until backfill is placed.
Compacted fill
Native Soil
Depression for geotextile wrap
Removable form
2. Place backfill in specified lifts and compact
to 95% Standard Proctor.

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Temporary Wall Construction
1. Place second removable form by repeating step 2.
Native Soil
2. Place second layer of geotextile and reinforced
fill by repeating steps 3 through 4.
3. After completion of second lift, jump the first form.

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NOISY RIVER BRIDGE
Detour 1 Temporary Wall

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NOISY RIVER BRIDGE
Multi-Plate
Bridge-Plate
• Long Span Soil Steel Structures • Spans 5m to 20m
• 400 x 150 mm Corrugation • Arches & Boxes

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NOISY RIVER BRIDGE
Structure:
• 36 m long, 9m half round arch on concrete footings; footings encased in sheet piling
• 5.0mm thick Bridge Plate, 5 plates per ring
• Constructed in halves

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NOISY RIVER BRIDGE
Steel Erection - Phase 1

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NOISY RIVER BRIDGE
Backfilling - Phase 1

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NOISY RIVER BRIDGE
Phase 2 - Steel Erection

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NOISY RIVER BRIDGE
Phase 2 - Backfilling

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NOISY RIVER BRIDGE
Completed Project

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PUTNAM RAIL TRESTLE

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PUTNAM RAIL TRESTLE
Replacement of a high maintenance wooden rail trestle with minimum track shutdown

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PUTNAM RAIL TRESTLE
Twin 3050mm diameter Multi-Plate Soil-Steel Structures

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PUTNAM RAIL TRESTLE
Installation of Uni-axial geogrids to create a 1:1 Reinforced Slope, 8m high

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PUTNAM RAIL TRESTLE
Partially buried trestle with Wrapped Face Geogrid Reinforced Slope

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PUTNAM RAIL TRESTLE
Installation of Geocell Slope Protection System

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PUTNAM RAIL TRESTLE

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PUTNAM RAIL TRESTLE

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Contact Your Local Sales Rep:
www.armtec.com/sales-offices/
Todays Speakers:
Doug Lowry
Drew Willms

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www.armtec.com/events

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Innovative Engineered Infrastructure Solutions for Challenging Drainage
Projects
REFER QUESTIONS TO YOUR
LOCAL ARMTEC SALES REPS

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Contact Your Local Sales Rep:
www.armtec.com/sales-offices/
Todays Speakers:
Doug Lowry
Drew Willms

Innovative engineered infrastructure solutions for drainage projects

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