St. Croix River Crossing S.P Contractor Informational Meeting May 15, 2013 Contact: Paul Kivisto, P.E. St. Croix Crossing Bridge Construction Engineer

The contract will be the governing document and anything we say here is to help contractors understand the draft plans and clarify items that may be in the contract. If there is a conflict between what is presented and the final plans and specifications the plans and specifications will prevail.

Bridge Plan and Elevation – Minnesota Approach Bridges

Bridge Plan and Elevation – Minnesota Approach – 5000 ft

Bridge Plan and Elevation – Minnesota Approach Bridges Basic Bridge Layout / Geometry Construction/Erection Points – Wetlands – Access Points – Balanced Cantilever Items – Segment Weights Substructure Alternatives

82045 – MN Approach Spans Two Alignments – 1400 ft Each Two Units per Alignment Unit 1 – Precast Concrete Box Superstructure Unit 2 – Cast-In-Place on Falsework

82045 – MN Approach Spans Unit 1E / 1W Unit 1E – 960’ Length – Precast Concrete Box Superstructure with CIP Pier Tables and 14’ Deep End Diaphragm – Span 1 – 190’ Span – 10’ Depth – Span 2 – 240’ Span – 10’ to 14’ Transition in Depth – Span 3 – 290’ Span – 14’ Depth – Span 4 – 236’ Span – 14’ Depth

82045 – MN Approach Spans Unit 1E / 1W Unit 1E

82045 – MN Approach Spans Unit 1E / 1W Unit 1E

82045 – MN Approach Spans Unit 1E / 1W Unit 1W – 1200’ Length – Precast Concrete Box Superstructure with CIP Pier Tables and 14’ Deep End Diaphragm – Span 1 – 190’ Span – 10’ Depth – Span 2 – 240’ Span – 10’ to 14’ Transition in Depth – Span 3 – 290’ Span – 14’ Depth – Span 4 – 190’ Span – 14’ Depth

82045 – MN Approach Spans Unit 1E / 1W Unit 1W

82045 – MN Approach Spans Unit 1E / 1W Unit 1W

82045 – MN Approach Spans Unit 2E and Unit 2W Two Alignments Separated Bridges / 1” Joint in Span 7 Cast-in-Place on Falsework Complex Geometry Due to Merging Onramp and Diverging Offramp Post-tensioned Longitudinally, Transversely in Deck and at Intermediate Pier Diaphragms

82045 – MN Approach Spans Unit 2E and Unit 2W Unit 2E – 750’ Unit 2W – 480’

82045 – MN Approach Spans Unit 2E and Unit 2W

Intermediate Diaphragm Post-Tensioning

82047 (North OffRamp) and (South OnRamp) Offramp – Combination of CIP on Falsework and Precast Balanced Cantilever Erection Onramp – Cast-in-Place on Falsework Varies in depth from 14 to 10 feet H-pile foundations

82047 (North OffRamp) 960’ Length – Combination of One Span that is CIP on Falsework with Remaining Spans Precast Cantilever Erection – CIP Pier Tables and 14’ Deep End Diaphragm – Span 1 – 150’ Span – 10’ Depth – Varying Width – Span 2 and 3 – 190’ Span – 10’ Depth - BC – Span 4 – 230’ Span – 10’ to 14’ Transition in Depth – Span 5 – 190’ Span – 14’ Depth – 1000’ Radius

82047 (North OffRamp) General Layout

82047 (North OffRamp) Cross-sections

82048 (South OnRamp) 630’ Length – Cast-in-Place on Falsework – Span 1 – 122’ Span – 10’ Depth – Span 2 – 190’ Span – 10’ Depth – Span 3 – 190’ Span – 10’ to 14’ Transition in Depth – Span 4 – 120’ Span – 14’ Depth – Two Phase Construction – XCEL Storage Tracks

82048 (South OnRamp) General Layout

82048 (South OnRamp) Cross-sections

Bridge Plan and Elevation – MN Approach - Construction Wetlands Access Points Balanced Cantilever Construction Segment Weights Cast-in-Place on Falsework

Bridge Plan and Elevation – MN Approach - Construction Wetlands

Bridge Plan and Elevation – MN Approach - Construction Wetlands – Wetlands on Minnesota Approach – Forested Wetlands near Minnesota bank – Commitments made to minimize impacts and to preserve water quality

Bridge Plan and Elevation – MN Approach - Construction Wetlands – Anticipated Impacts

Bridge Plan and Elevation – MN Approach - Construction Access Points – Highway Access – TH 36 and TH 95 – Rail Access – UPRR – River Access – Offload from Barge to Bank Provisions for Trestles into St. Croix River to Allow Use of Barges for Segment Delivery

Bridge Plan and Elevation – MN Approach - Construction Access Points - Highway Access – 14’ Depth – 45’ Width – 8.5’ Length – Up to 120 tons – Transport and Erection – Elevation Drop from TH 95 Down to River

Bridge Plan and Elevation – MN Approach - Construction Access Points – St. Croix River

Bridge Plan and Elevation – MN Approach - Construction Balanced Cantilever Construction – Ground Based Crane Erection – Requires Series of Access Roads Adjacent to Cantilever Segment Hauler Requires Crossing UPRR Track at Grade – Traffic Control Requirements at TH 95 – Shoring Towers at Piers – Tip Props Shown with Pier 4 Erection

Bridge Plan and Elevation – MN Approach - Construction Balanced Cantilever Construction – Unit 1E

Bridge Plan and Elevation – MN Approach - Construction Balanced Cantilever Construction – Unit 1W

Bridge Plan and Elevation – MN Approach - Construction Balanced Cantilever Construction – Unit 1W

Bridge Plan and Elevation – MN Approach - Construction Balanced Cantilever Construction – 82047

Bridge Plan and Elevation – MN Approach - Construction Balanced Cantilever Construction – Ground Based Cranes – 80 to 120 ton Segments (7.5’ to 8.5’ Lengths) – TH95, UPRR, XCEL Storage Tracks, Wetland Impact – Use of Internal PT-Bars

Bridge Plan and Elevation – MN Approach - Construction Access Points - Highway Access

Bridge Plan and Elevation – MN Approach - Construction Balanced Cantilever Construction – Adjacent Access to Cantilevers

Bridge Plan and Elevation – MN Approach - Construction Balanced Cantilever Construction – Traffic Control Requirements at TH 95

Bridge Plan and Elevation – MN Approach - Construction Balanced Cantilever Construction – Shoring Towers at Piers

Bridge Plan and Elevation – MN Approach - Construction Balanced Cantilever Construction – Tip Props Shown with Pier 4 Erection

Bridge Plan and Elevation – MN Approach - Construction Segment Weights – Typical 10’ Segment – 83 tons – Typical 10’ Segment (Deviator) – 105 tons – Typical 14’ Segment - 90 tons – Typical 14’ Segment (Deviator) – 120 tons – 10’ Precast Pier Segment – 120 tons – 10’ Precast End Segment – 120 tons

Bridge Plan and Elevation – MN Approach - Construction Segment Weights

Bridge Plan and Elevation – MN Approach - Construction Cast-in-Place on Falsework

Bridge Plan and Elevation – MN Approach - Construction Cast-in-Place on Falsework – Bridge – Unit 1E / Unit 2W 14’ Deep Pier Tables 14’ Deep End Segments – Bridge – Unit 2E / Unit 2W – Bridge – Span 1, Pier 1 and Pier 4 Table, and Pier 5 End Diaphragm – Bridge Two Phase Construction / Post-tensioning

Bridge Plan and Elevation – MN Approach - Construction Cast-in-Place on Falsework – Bridge – Cast Span 1 Concrete and Pier 1 Table – Post-tension Longitudinal Web Tendons and Supplementary Bottom Slab tendons – Precast Segment Erection on Span 2 Side of Pier 1

Bridge Plan and Elevation – MN Approach - Construction Cast-in-Place on Falsework – Bridge 82048