24. Arch Bridge Typology
• Strong visual impact
• Announces downtown
• Contemporary and iconic quality
• Classic form that respects existing bridge and relates to
High Level and Low Level bridges
• Beautiful artistic form
• Balances function with beauty
• Connects south and north banks
• Can separate vehicular traffic from pedestrians and
cyclists
• Place to touch the water
35. Pedestrians and Cyclists
8 m clear at abutments
4.2 m clear at mid-span
131 m long bench
3.2 m clear at hangers
4.6 m clear between
SHARED USE PATH
SIDEWALK
36. Bridge Finishes
• Structural steel
• Concrete
• Bench on shared use path,
abutment delta pier
• Railings
• Deck wearing surface
• Shared use path wearing
surface
• Sidewalk
• Durable, white paint
• Natural color
• Anti-graffiti coatings
• Stainless steel
• Asphalt
• Asphalt with timber
accents
• Broom finished concrete
43. Shared
Use Path
Model for Preliminary
Sidewalk Model for
Member Sizing
Preliminary Member Sizing
Stresses from
Stresses from
Flexure in Box Girder
Flexure in Box Girder
Deflections – DL
+ LL
Deflections
DL+ LL
44. Tuned DL on Shared Use Path
Truck/Lane Load on Shared Use Path
56. Arch Ribs
• Member design
Cf
U 1x M fs
U 1 y M fy
Cr
M rx
M ry
• Connection a base and
splices
1.0
Cf
1
x ,total
2
buckling
3
4
X
(1
Fy
Fcr
UM fx
A
Cf
Cr
2n
)
UM fy
Sx
Sy
(1 X ) s Fy
1/ n
buckling
68. The Tenders
• Tender 1: Phase I Berms
– Awarded to Sprague-Rosser
• Tender 2: Bridge and Roadway Construction
–
–
–
–
Pre-qualified steel suppliers
Pre-qualified six construction teams
Competitive tender
Awarded to Acciona Pacer Joint Venture
69. Construction So Far
• Site Preparation (Phase I berms)
• Utilities
• Queen Elizabeth Park Road and Park Access
Road
• Removal of Belvedere
• Thrust Blocks
• Steel Fabrication
There are some culturally significant things that are close by as well:There are a number of City of Edmonton historically designated buildings including the John Walter houses on the South side and parts of the EPCOR Rossdale Generating Station on the northThe original Fort Edmonton was in the vicinity before it became the museum further west. This meant that there are a number ofassociated archeologically significant artifacts.There is a cemetery site to the north of the existing bridge and there will need to be a cemetery boundary adjustment for this project to go ahead. This is presently in the hands of Service Alberta.you may have seen in the last few months our archeologist Gareth and his team doing their archeological digs in the area on both the north side and the south side of the river. From a number of previous studies that have been done in the area where the bridge will go we’re confident that there won’t be any remains found in the area. However we’ve had an archeologist digging in the vicinity of the bridge to confirm that that is the case and so far that has proved to be true. The archeologist will be on-site throughout the excavation phase of the bridge construction, along with a number of aboriginal monitors and the work will stop if they do find something.The City have developed a protocol for dealing with any remains they may find in a respectful manner ... However we feel that the chances of that are pretty slim as the approach to the bridge is largely on disturbed ground
Stakeholders:A number of stakeholders including:Rossdale Community League Central Area CouncilAdvisory Board for Persons with DisabilitiesEdmonton Heritage CouncilAppointed by/ selected by Aboriginal Relations Office – City of EdmontonKinsmen Sport CentreRiver Valley AllianceEtc. These became our sounding board for project decisionsWe’ve also had regularly scheduled meetings with the various utility companies, with City Departments and with other stakeholders
Public:At the outset we put together a public involvement plan that was approved by the City that outlined key points for contacting the publicWe’ve had a number of public information sessions and open housesThere is a City website that you can go to
Aboriginal:As I mentioned we’ve contacted 21 aboriginal communities about the projectOur archeologist and members from the City team have had many conversations; very interesting discussions with many of the elders from these communities
It was determined that the bridge should be put in a location that would allow the existing bridge to be left in place during construction to continue to be used as a major link into downtown, rather than closing it down altogether.So the new bridge will be to the east of the existing bridge and at a slight skew to itConsequently the approaches on the south side are being realigned to line up with the new bridgeOn the north side there is less realignment required
Part of this project was to enhance these trails wherever possibleThe new trails include a separated multi-use trail across the river
On the south bank a number of loop ramps and steps to allow multi-use trail users to get one side of the bridgeto the other.Be able to get from the Kinsmen to the bridge by going under the bridge and looping aroundAlso a spot for some art on this side of the river
This alsoincludes a wildlife corridor and plantings to enhance
On the north side, a northside “promenade” is being constructed as part of the work which links under the bridge on the northside as well as tieing in to the existing trails.On the northside presently there is no way to get under the bridgeThere is again a spot for Ken Lum’s artwork
On the north bank you can see the wide promenade
Artistic rendering of what it will look like
A number of plantings to help enhance the experience