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DESIGN-BUILD OF
THE INDIAN RIVER INLET
CABLE STAYED BRIDGE
Douglass Robb, P.E.IRIB Project ManagerDelDOT Winter WorkshopFebruary 18, 2010
2 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Presentation Overview
Bridge History
Design-Build Proposal
Design Considerations/Challenges
Bridge Features
Questions
3 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge HistoryBridge History (5th Replacement in 75 Years)
1. 1934 Timber bridge – washed away
2. 1938 Concrete and steel swing span, ice flow & extreme tides destroyed
3. 1952 Concrete and steel swing span
4. 1965 Existing steel girder bridge (Widened in 1976)
5. 2008 New Construction Begins
4 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge History
Courtesy of Mr. Jay Erwin Jr
5 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Looking EastScour Hole, 100’+/-
Piers
Stone Armor
Remnants of 1952 Piers
2004 Bathymetric Survey
6 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge History
Is the Bridge Safe to Drive On?
7 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge History
8 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design-Build Proposal
Who Are We Getting?
9 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design-Build Proposal
IBT
S&ME
Maunsell
Urban Engineering
RWDI
Contractor:
Designer:
Design/Construction QC:
Sub-consultants:
Freyssinet Inc
Interlock
Aldridge Electric
Sub contractors:
NXL
Sub-consultants:
Who Are We Getting?
10 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design-Build Proposal
What Are We Getting?
11 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design-Build Proposal
Lowest Price Proposal Just Under $150M budget
Highest Technical Proposal Score 3 Excellent Proposals
Earliest Proposed Completion Date April 30th, 2011 Open to Traffic (8 months early)
What Are We Getting?
12 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design-Build Proposal
13 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design-Build Proposal
14 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
Bridge Hydraulics and Scour
15 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
Bridge Hydraulics and Scour
No foundations in the inlet
Located within Hurricane Zone
Storm surge still estimated 5 feet +/- over F.G.
Coastal Storm Surge Modeling (SWAN)
Coastal Wave Action Modeling (ADCIRC)
100-YR and 500-YR Return Intervals Considered
30 ft and 35 ft scour depths estimated in RFP• Attempted to minimize risk to Proposers
16 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
Why Design For Scour?
17 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
18 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
19 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
20 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
21 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
22 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
23 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
24 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
25 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
26 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
Wind Analysis
27 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
Wind Analysis
Site Specific Wind Profile Developed
RWDI Wind Tunnel Testing Just Recently Completed, Over 50% of Pylon Piles Driven
Initial Design Assumptions and Preliminary Results Validated
28 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
Wind Analysis - Sectional Model
29 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
Wind Analysis - Aeroelastic Model
30 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
Wind Analysis - Aeroelastic Model
31 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
Wind and Weather
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Design Considerations
33 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
Geotechnical
34 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Design Considerations
Geotechnical – Soil Profile
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Design Considerations
Geotechnical – Pile Installation Method
36 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
Piles
Footings/Substructure
Pylons
Falsework
Superstructure
Form Traveler
Cable Stay System
37 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
Pile Details and Pile Driving
38 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
Pile Details
39 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
40 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
41 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
42 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
43 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
44 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
45 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
46 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
47 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
48 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
49 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
50 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
51 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
52 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
53 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
54 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
55 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
56 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
57 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
Footings and Substructure
58 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
59 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
60 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
61 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
62 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
63 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
64 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
65 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
66 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
67 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
68 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
69 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
Pylons
70 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
71 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
72 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
73 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
74 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
75 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
76 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
77 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
78 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
79 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
80 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
81 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
82 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
Falsework
83 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
84 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
85 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
86 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
87 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
88 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
89 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
90 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
91 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
Superstructure
92 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Typical Section for the ApproachesAASHTO 69” Bulb-T Girders
Bridge Features
93 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
CIP Concrete Edge Girders & Precast and CIP Transverse Floor Beams
Bridge Features
94 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
95 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
96 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
97 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
98 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
99 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
100 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
101 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
Form Traveler
102 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
103 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
104 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
105 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
Cable Stay System
106 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
107 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Strands 0.62” Diameter Coextruded HDPE Sheathing Wax Filled
External HDPE Stay Pipe (Blue)
Strands are non bonded and parallel
Strands are individually stressed
Benefits: High fatigue resistance Good geometry control High grade corrosion protection Stays are easy to replace
Bridge Features
108 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Bridge Features
109 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Erect stay pipe and master strand
Bridge Features
110 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Conclusion
NTP Issued September 15, 2008
Design is Approximately 95% Complete
Construction is Approximately 40% Complete
Phase II Roadway Work Begins Late Summer 2010
Traffic on Bridge by Spring 2011
Project To Be Completed by Summer 2011
Existing Bridge Demo Late 2011 (Separate Contract)
111 www.irib.deldot.govIndian River Inlet Bridge Design-BuildWinter Workshop - February 18, 2010Doug Robb, DelDOT Project Manager
Questions and Comments?
