The Fort Edmonton Footbridge Project

The Fort Edmonton Footbridge is a signature pedestrian suspension bridge located in SW Edmonton.

The Fort Edmonton Footbridge project provides a river crossing and approach trails that further develop the Edmonton s River Valley. Tender Closing July 9, 2008 Construction Sept 6, 2008 to November 10, 2010 Construction Cost - $ 23 M

Bridge Details The bridge has three spans, including two 54 m side spans and the 138 m main span. Two continuous main cables support the precast concrete deck panels over the length of the bridge. The cables are anchored in abutments at both ends of the bridge, and are clamped into saddles at the tops of two towers.

Project Management Team The City of Edmonton Alberco Ch2MHill

Construction Team Erection Engineering & Construction Engineering Support Dialog Caissons AGRA Foundations Soil Anchors Beck Drilling Cast-in-place Concrete Alberco Reinforcing Steel A & H Rebar Bearings & Tower Saddles LCL Bridge Products Steel Tower Legs WF Welding & Overhead Crane Post Tensioning & Cable Anchorage Dywidag Systems International Steel Cable System Bridon International, UK Precast Panels Lafarge North America

Project Scope of Work Environmental management. River berm installation and removal. Concrete abutments with post-tensioned soil anchor foundations. Concrete/ Steel Towers with concrete belvederes. Suspension cable & support system. Precast deck panels. Post-tensioning Architectural steel components. Trail construction and landscaping. Environmental compensation.

Getting Started

Access Roads & Berm Construction - River berms constructed from both sides of river to access both Tower locations

Environmental Management - Aqua-Barrier water filled dams & floating silt curtains.

Berm footprints were minimized to provide less environmental impact. Berm elevations were approved at the 1:5 year water levels. Rock Rip Rap, concrete topping, and geotextile liner.

Tower Construction

Tower Foundations - Two belled caissons 2.4m diameter. 12.5m deep with 3.6m bell. Temporary steel casings used for water control.

Tower Foundations Caisson Installation

Tower Base - Solider pile & lagging shoring for tower base.

Tower Base Concrete Formwork & Shoring

Tower Columns 1.220m dia. steel pipe with tower head reinforcing cage.

Tower Columns - Survey control during erection using laser targets to achieve installation within 10mm tolerance at tower tops.

Tower Columns A-symmetrical concrete filled steel tower columns. - Horizontal & diagonal struts to control column positions.

Tower Head 53 m3 of cast-in-place post-tensioned concrete elevated 30m from river elevation.

Belvedere Construction Concrete Slab, post-tensioned, 100m3 each, elevated 12m.

Belvedere Construction Steel Shoring System: beams, H-Pile columns, steel scaffolding.

Belvedere Slab Transverse post-tensioning and post-tensioning ducts with anchorage for precast panel system.

Abutment Construction concrete raft slab with post-tensioned soil anchors.

Abutment Construction Soil Anchors, 60 per abutment, 16-22m depth.

Abutment Construction Anchors for suspension cable.

Abutment Construction Abutment chamber - 1.3m raft slab, 1.1m thick walls, 0.3m thick roof slab.

Abutment Construction Concrete Chamber

Suspension Cable - Socket anchor casting by ESCO foundry.

Suspension Cable Main cable anchors.

Suspension Cable - Tower Saddle radius plate with machined cable groove & matching clamping plate.

Suspension Cable Installation Installation of suspended walkway system to allow for winching cable across the river into position.

Walkway Installation Fall arrest mock drill

Suspension Cable Installation

Walkway for Cable Installation

Cable Spool & Socket - 255m long, 113mm diameter.

Suspension Cable Installation - Winching of Cables on suspended walkways

Suspension Cable Installation Winching of cables across tower head.

Suspension Cable Installation Winching of Cables on suspended walkways

Suspension Cable Installation Cable clamps and hangers installed for precast panel installation.

Temporary High Line Precast installation using pulleys & tirfors.

Precast Panel Installation Erection sequence & engineering analysis.

Precast Panel Installation Remove walkways & install end spans with conventional cranes.

Precast Panel Installation Install center span panels with trolley system.

Precast Panel Installation Trolley wagon & cable system.

Precast Panel Installation Test lift of precast panels using hydraulic tirfors.

Precast Panel Installation Load panel on trolley cart, winch cart into position, attach hydraulic tirfors to temporary cables, jack panel into position.

Precast Panel Installation Trolley system using highline.

Precast Panel Installation Lower high line and hardware onto precast panels

Precast Panel Installation Install temporary wind bracing and grout panels

Post-Tension Panel System - 108 strands in precast panel curbs. Anchored at abutment & belvederes.

Damper System 4 vibration dampers (2 per abutment) to control deck movements.

Environmental Compensation Installation of 4 rock groynes, downstream of bridge.

Aerial View - panels erected.

Aerial View Berms removed.

Bridge completed!

2 years & 2 months to complete. Approx. 513 work days on site. Approx. 57,881 man hours 55-60 workers during construction peak ( 40 Alberco, 15-20 Sub-trades)

BRIDGE FEATURES Deck elevation looking East. Tower canopy, handrails, LED lighting.

BRIDGE FEATURES River Elevation - Looking East

BRIDGE FEATURES Belvedere seating area with canopy.

BRIDGE FEATURES Belvedere View from river elevation.

BRIDGE FEATURES Tower and deck view from river elevation. Looking West.

BRIDGE FEATURES Night View Bridge LED Lighting.

Project Awards ACI 2011 Awards of Excellence

Questions?