PowerPoint Presentation
THE RIVERWALK DESIGN TEAM
THE RIVERWALK CONSTRUCTION MANAGEMENT TEAM
STAKEHOLDERSCity of
ChicagoFHWAIDOTUSACEUSCGIDNR/ICMPIEPAMWRDGCCTAUSFWSIllinois
Historic Preservation AgencyBuilding OwnersCommercial & Tour
Boat OperatorsRecreational Users/BoatersRetailers/Business
OwnersUtility CompaniesCommunity GroupsChicago Park DistrictLocal
ResidentsAlderman
PROJECT GOALSMissionDevelop the underutilized Riverwalk as a
premier public space and continuous system.
Project ThemesCulturalEnvironmentalEconomicRecreational
CULTURAL OBJECTIVES
Create diverse gathering spacesCelebrate the Rivers
uniquenessEmbrace the sites historyEnhance community life
ENVIRONMENTAL OBJECTIVESRestore aquatic habitatCultivate
terrestrial habitatImprove the water qualityUse sustainable
building strategies
ECONOMIC OBJECTIVESMaximize leasable opportunitiesActivate the
space along the RiverImprove the perception of safetySupport
commercial boating activity
RECREATIONAL OBJECTIVESCreate a continuous public walkwayImprove
vertical circulationIncrease recreational boatingProvide more
public river uses
PROJECT STUDY HISTORY Chicago Riverwalk FeasibilityMain Branch
GuidelinesChicago River Development PlanChicago Riverwalk Program
and DevelopmentVolpe AnalysisChicago River Master PlanChicago
Riverwalk AgendaChicago River MarketAction Plan for the RiverOWPP
Riverwalk StudyCentral Area Action PlanChicago Riverwalk Framework
Plan199219951999199920012002200520062007200820092009
PHASE 1Michigan Ave. State St.2008 2009Designers: RBA,
CollinsContractors: Walsh & RauschConst. Manager: BeneschCost:
$19M PHASE 2State St. LaSalle St.2014 - 2015Designers: Sasaki, RBA,
BeneschContractor: WalshConst. Manager: BeneschCost: $43M PHASE
3LaSalle St. Lake St.2015 - 2016Designers: Sasaki, RBA,
BeneschContractor: WalshConst. Manager: BeneschCost: $53M PROJECT
PHASES
PROJECT FUNDINGPhase 1 Michigan Avenue to State StreetCentral
Loop tax-increment financing district (TIF)Phases 2 & 3 State
Street to Lake StreetTransportation Infrastructure Finance
Innovation Act Program (TIFIA)Provides credit assistance for
qualified infrastructure projectsIntended only for projects of
regional or national significanceCDOT submitted letter of interest
to the USDOT in 2012 for fundingLoan maturity date is 2048Loan
repayment methods:
Rent / LeasesTour boatsPrivate boats
Charter boat dockingAdvertisingSponsorships
REGULATORY & PERMITTING PROCESSThe Chicago River is
designated as Waters of the United States and is protected by
federal law.
The City was required to obtain permission from Congress to
construct the Riverwalk into the river.On September 24, 2003, the
U.S. House of Representatives passed Water Resources Development
Act H.R. 2557 allowing the City to build:
20 feet into the river beneath each bascule bridge (six
total).25 feet between the bascule bridges.50 feet between Franklin
and Lake Streets where the river widens at the confluence of the
three branches of the Chicago River.
PERMITTINGFederal
USACESection 404 (Clean Water Act) Individual
PermitUSCGUnderbridge and Overall Project Sign-OffInitial Risk
Assessment for USACE PermitBridge Permit ApplicationBridge Lighting
Permit ApplicationNavigation Lighting ReviewUSFWSThreatened and
Endangered Species Sign-OffFHWANotification of Adverse Effect and
Memorandum of Agreement (MOA)Final Plan Review Sign-OffState
IEPASection 401 (Clean Water Act) Water Quality Certification
with Anti-Degradation ReportStormwater Pollution Prevention Plan
(SWPPP)IDNR/ICMPICMP Federal Consistency Determination &
Certification + Part 3704 IDNR PermitMWRDGCHydraulic Analysis &
Operations Report Sign-OffSewer Permit for Sewer
Connections/Structure Modifications
Illinois Historical Preservation Agency State Historic
Preservation Office (SHPO)National Historic Preservation Act
Section 106 Sign-Off from Advisory Council on Historic
PreservationCity of Chicago
CDOTCity of Harbor PermitIrrigation & LandscapingDWMProposed
Sewer Design Sign-OffWater Supply Design Sign-OffOUCStructures/Deep
Foundations/Sheet Piling (Depth > 12 feet) Sign-OffNew Sewers or
Drainage Structures (Depth > 12 feet) Sign-OffDEOElectrical
& Lighting Internal DEO plan review and approvalMOPDInternal
plan review and approvalHEDLandmarks Commission Internal plan
review and approvalOther
Wacker Drive Building Owners/ManagersVerification of existing
pipes and coordination/approval of proposed pipe extensions and
related workCTAUnderbridge Structure over CTA Red Line Tunnel at
State StreetUnderbridge Structure under Wells Street Brown &
Purple Line TracksMarine Structure near CTA Blue Line Tunnel at
Lake Street
PHASE 1 (COMPLETED 2009)
PHASE 1 (VIETNAM VETERANS MEMORIAL)
PHASE 1 (MICHIGAN AVENUE)
PHASE 1 (MICHIGAN AVENUE)
PHASES 2 & 3 (EXISTING CONDITIONS)
PHASES 2 & 3 (EXISTING CONDITIONS)
Dearborn to ClarkState to Dearborn
Clark to LaSalleLaSalle to Wells
Wells to FranklinFranklin to Lake
PHASES 2 & 3 (EXISTING CONDITIONS)River depth = 20
FT.Existing walkway width = 10 FT.Upper Wacker elevation =
+22.0Existing dock elevation = +5.0 CCDNormal water elevation =
-2.0 CCDMax. recorded water elevation = +4.1 CCDModeled 100yr storm
elevation = +6.4 CCD
EXISTING SUBSURFACE FACILITIES
EXISTING SUBSURFACE FACILITIES
THE RIVERWALK PLAN PHASES 2 & 3
6 distinct blocks (rooms)Length of each room is approximately
300 feet except far west roomLength of far west room is
approximately 600 feet
THE RIVERWALK PLAN PHASE 2
THE MARINA PLAZA
Dining terrace / restaurant spaceCustom public seatingTransition
to Vietnam Veterans Memorial Plaza
THE MARINA PLAZA
THE MARINA PLAZA
THE MARINA PLAZA
THE COVE
Kayak and rental spaceFacilitate human-powered watercraft
dockingShallow edge allows easy access to river
THE COVE
THE COVE
THE COVE
THE RIVER THEATER
Vertical access locationSculptured staircase/ramp
(stramp)Boat/Water Taxi access
THE RIVER THEATER
THE RIVER THEATER
THE RIVER THEATER
THE RIVER THEATER
THE RIVERWALK PLAN PHASE 3
THE WATER PLAZA
Recreational spaceInteractive water featuresZero-depth fountain
and water jetsHigh exposure to sunlight
THE WATER PLAZA
THE WATER PLAZA
Ecological learning environmentPromotes aquatic and celestial
habitatsFloating gardensFishing piers and overlooksTHE JETTY
THE JETTY
THE JETTY
Vertical access locationLargest room50 build-out limitLargest
green space/parkTHE BOARDWALK
THE BOARDWALK
Creates continuity between roomsClose to waterCustom canopy
structuresTHE UNDERBRIDGES
THE UNDERBRIDGES
CLARK STREET UNDERBRIDGE
Structural DesignChallenges
PRIMARY STRUCTURAL DESIGN CHALLENGESExpand the
RiverfrontIncorporate the existing dock wall and provide
redundancyPoor soil conditionsMaintain constructability in
submerged conditions
Crossing Beneath the Bascule BridgesCoast Guard design criteria
for vessel collisionAvoid existing tunnels and submarine
cablesMaintain constructability beneath/adjacent to the bridges
Typical Room Design ChallengesExpand the RiverfrontVarious
systems from floating docks to pile-supported piers were
consideredTieback system selected for cost and proven
performanceReuse the existing dock wall to minimize cost and
construction impactsSystem must have redundancy in the event of an
existing tie rod failureRiverwalk platform designed as structural
slab on grade to alleviate settlement concernsAddress utilities
that must extend and pass through new dock wallConsider the
constructability of various elements that will ultimately be
underwater
Typical Room Plan View
Expand the Riverfront
Typical Room Cross SectionExpand the Riverfront
Assess the Existing Dock WallExpand the Riverfront
Connect New and Existing SystemsExpand the Riverfront
EXPAND THE RIVERFRONT
EXPAND THE RIVERFRONT
EXPAND THE RIVERFRONT
EXPAND THE RIVERFRONT
EXPAND THE RIVERFRONT
EXPAND THE RIVERFRONT
EXPAND THE RIVERFRONT
Jetty Plan ViewExpand the Riverfront
Jetty Design ChallengesExpand the RiverfrontPier layout limited
the choice of structural systemNeeded to avoid the existing tunnels
beneath the riverSame vessel collision criteria as the
underbridgesMust retain existing fill if existing timber piles and
sheeting fail
Jetty Cross SectionExpand the Riverfront
Underbridge Design ChallengesCrossing Beneath the Bascule
BridgesMiss submarine cables and existing tunnelsAccommodate Coast
Guard vessel collision criteriaMaintain constructability
Typical Underbridge Plan ViewCrossing Beneath the Bascule
Bridges
Typical Underbridge Cross SectionCrossing Beneath the Bascule
Bridges
Vessel CollisionCrossing Beneath the Bascule Bridges1,622 kip
force parallel to channel811 kip force perpendicular to channel
Vessel CollisionCrossing Beneath the Bascule BridgesMarine Angel
Largest vessel to traverse both the Mississippi and Chicago
Rivers500 ft long and 70 ft wide
Vessel CollisionCrossing Beneath the Bascule Bridges
Vessel CollisionCrossing Beneath the Bascule BridgesEnvelope
behavior with two separate analysesLUSAS finite element
softwareL-Pile for nonlinear soil structure interactionDeflection
was not deemed to be a critical limit stateUnderbridges will create
a substantial improvement to the protection of the existing bridge
houses in the event of an impact
Vessel Collision at State StreetCrossing Beneath the Bascule
Bridges
Vessel Collision at State StreetCrossing Beneath the Bascule
Bridges
Vessel Collision at Jetty PierExpand the Riverfront
Constructibility Crossing Beneath the Bascule BridgesDrilled
shafts had to be drilled adjacent to and beneath the bascule
bridgesConstructing the interior shafts requires bridges to be open
and remain open for extended periods of timeUnderbridge drilled
shaft cap is halfway underwater and must be placed in the dry
Drilled ShaftsCrossing Beneath the Bascule Bridges
Drilled ShaftsCrossing Beneath the Bascule Bridges
Drilled ShaftsCrossing Beneath the Bascule Bridges
Drilled Shaft CapCrossing Beneath the Bascule BridgesBathtub
construction method chosen by Contractor
Drilled Shaft CapCrossing Beneath the Bascule Bridges
Contractor proposed to place the bottom and side primary
reinforcement within the precast bathtubNeed to achieve adequate
bond and horizontal shear transfer to ensure section behaves
monolithically rather than as two separate membersBar splicers and
grooves
Drilled Shaft CapCrossing Beneath the Bascule Bridges
Jacking PostsCrossing Beneath the Bascule Bridges
CHICAGO RIVERWALK UNDER CONSTRUCTION
THE RIVER THEATER
