TAG Holding LLC proposes replacing a 7-mile section of Lake Shore Drive in Chicago with a two-level immersed tunnel to address safety, mobility, and infrastructure issues. The proposal involves constructing prefabricated tunnel segments offshore and sinking them into a prepared trench. This would eliminate traffic issues while gaining 80 acres of new parkland. The $2.2 billion public-private project is estimated to pay for itself within 14 years via tolls. If approved, construction would take 2 years and be complete by 2020.

1. TAG Holding LLC’s Proposal for:
Prepared by and Property of:
James Price Chuck
T: 312 507 9792 │ E: james.price.chuck@tagholdingllc.com
A: 5000 N. Marine Dr., Chicago IL 60640
09/05/2014
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1.4 Project Need Improvement needs vary throughout the seven-mile study area and fall into one of five categories:
•Improve safety for all users.
•Improve mobility for all users.
•Address infrastructure deficiencies.
•Improve access and circulation.
•Improve modal connections and opportunities.
Source: http://www.northlakeshoredrive.org/

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Situation
Lake Shore Drive is an essential Chicago artery with more than 150K vehicles per day
Roadway designed 100 years ago and unable to handle traffic demand
Congestion, curves and potholes cause crashes and gridlock that have negative social and economic costs
Physically seperates City from its Lakefront
Negatively impacts viewsheds, environment and property values
On/off ramps create dangerous interactions with Lakefront Trail users
High Usage and Congestion
A Grey Divide
5700N
Red = > 100K vehicles ave/day
Central Business District & Tourism
Highest Value Residential & Recreational
A 12-lane 250 foot – wide
barrier
Source: Illinois Department of Transportation

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Opportunity to Elevate Chicago
Immerse Outer Drive in offshore two-level tunnel in shallow trench; eliminate weather impact from road conditions
Expand Outer Drive to 6-lanes each direction; upgrade access points to alieviate congestion and stoppage risks
Construct segments offsite at Port of Chicago; float into place. No disruption to the Drive while new one is prepared.
Create 1000s of jobs via PPP Private, State, Federal funding
Gain 80 acres of lakefront park and car-free Lakefront Trail
Cover tunnel with beach erosion-prevention technology
Lake Depth
Immersed Tunnel Cross-Section
Transformative Outcome
Shallow depth and soft lakebed are optimal for immersed tunnel
Protection layer
General fill
Locking fill
Gravel bed
Existing lakebed

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Source: Ramboll Group
Note: Not actual NLSD render. For illustrative purposes only
6-lanes on two-levels of stacked tunnel + corridors for light rail and/or bus rapid transit
NLSD-I capacity 2x greater than today; 300,000 cars a day without congestion
New ingress/egress access to or “under and past” Inner Drive eliminate bottlenecks
80 acres of parks and expanded auto-free Lakefront Trail for safe capacity increase
Existing lakebed

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What?
An immersed tunnel is an underwater tunnel composed of segments made of steel or cast iron tubes lined with concrete using conventional shipbuilding techniques.
Immersed tunnels are used in conjunction with other forms of tunnel at their ends to continue the tunnel from near the water's edge to the at-grade on-land surface.
How?
1.The tunnel is made up of separate, prefabricated segments that are produced offsite and sealed at each end with bulkheads so that they can float like a boat.
2.In parallel to segment production, an underwater trench is dredged and graded along the tunnel’s planned route.
3.When a trench section and its specific segments are ready, the segments are floated to the appropriate location above the trench, then slowly sunk into place. Once in place, they are aligned and connected to the adjacent segment(s).
4.After a segment is connected, a water-tight seal is created between adjacent segments, the tunnel is emptied of water and the underwater trench is then backfilled and any necessary protection is installed.
5.Once the immersed tunnel is connected and sealed airtight from end to end, it is linked to its bored or above-ground access points. Once these connections are completed, then the roadway/infrastructure inside the tunnel can be constructed.
Where?
USA: New York City’s 63rd St. 4-bore rail tunnel; San Francisco’s TransBay subway rail tunnel; Oakland’s subway rail tunnel; Baltimore’s 4-tube Fort McHenry tunnel; Detroit-Windsor 2-lane auto tunnel; Boston’s Ted Williams 3-lane auto tunnel.
Global: Montreal, Denmark, Sweden, Netherlands, Germany, Sydney, UK, Japan.

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= Man-made underwater and underground access island
Returns to above- ground, existing Lake Shore Drive at Montrose Avenue
Returns to above- ground, existing
Lake Shore Drive at Grand Avenue
Access points feed into existing roadways via “merge/yield” instead of stop lights

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Segments produced at Port of Chicago
Segments floated into place
Segments placed into trench, roadway installed and connected to access points
1a. Segment Production
5. Roadway Installation
4. Tunnel Preparation
3. Segment Submersion
2. Segment Transportation
1b. Trench Preparation
Images: Creative Commons and Ramboll Group

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Segment
Investment
Income
A
Montrose Avenue - Fullerton Avenue
Montrose Access Ramp (1640 ft)
10,838,443
One-way Toll
$1.00
Immersed Tunnel
1,065,340,909
Tolls / Day
130,000
Fullerton Access Ramp (1640 ft)
10,838,443
Days / Year
365
Contingency Reserve
27,175,445
Toll Income / Year
$47,450,000
Segment Cost
$ 1,114,193,240
Payback Period
23.5 years
B
Fullerton Avenue - North Avenue
Fullerton Access Ramp (1640 ft)
10,838,443
One-way Toll
$0.75
Immersed Tunnel
349,431,818
Tolls / Day
145,000
North Avenue Access Ramp (1640 ft)
10,838,443
Days / Year
365
Contingency Reserve
9,277,718
Toll Income / Year
$39,693,750
Segment Cost
$ 380,386,422
Payback Period
9.6 years
C
North Avenue - Oak Street
North Avenue Access Ramp (1640 ft)
10,838,443
One-way Toll
$0.75
Immersed Tunnel
242,897,727
Tolls / Day
125,000
Oak Street Access Ramp (1640 ft)
10,838,443
Days / Year
365
Contingency Reserve
6,614,365
Toll Income / Year
$34,218,750
Segment Cost
$ 271,188,979
Payback Period
7.9 years
D
Oak Street - Grand Avenue
Oak Street Access Ramp (1640 ft)
10,838,443
One-way Toll
$0.75
Immersed Tunnel
370,738,636
Tolls / Day
105,000
Grand Avenue Access Ramp (1640 ft)
10,838,443
Days / Year
365
Contingency Reserve
9,810,388
Toll Income / Year
$28,743,750
Segment Cost
$ 402,225,910
Payback Period
14.0 years
E
Project Design and Management
Initial Feasibility Study
175,000
New Parkland
80 acres
Project Preparation and Management
73,083,589
Time to Construct
2 years
Cost
$ 73,258,589
Total Project Budget
$ 2,241,253,139
Project Payback Period
13.7 years

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World-Class Partners
Global leader in tunnel analysis, design, engineering, advisory and project mgmt; designed and currently leading implementation of 11 mile immersed tunnel (Fehmarn Belt Tunnel); large-scale project experience in Chicago
Largest Chicago-based general contracting, construction mgmt, and design-build firm with relevant experience in civil and transportation
Premier Chicago-based regional development think-tank with expertise in transportation, environmental management and innovative infrastructure finance
Timelines
NLSD project management:
–2014: Identify and evaluate alternatives
–2015: Alternatives carried forward
–2016: Select Preferred Alternative
–2017: Obtain environmental and design approvals
TAG Holding’s Immersed Tunnel (I.T.) Team:
–2014: Provide IDOT with I.T. proposal
–2015: Provide IDOT with additional I.T. Information and Ramboll offer to perform feasibility analysis for $175,000
–2016: If I.T. is selected, then develop detailed design and engineering plans; work closely with DOTs to redesign and prepare access points
–2017: Obtain environmental and design approvals, prepare Port of Chicago I.T. segment production
–2018+19: Manufacture segments, prepare lakebed trench, complete tunnel installation, begin roadway fitting and connect to access points
–2020: Complete roadway, open new I.T. Outer Drive
NSDL project management and DOTs:
–2020+21: close and remove former Outer Drive roadway, enhance Lakefront Trail and Inner Drive, recover 80 acres parkland

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TAG Holding’s proposed solution for evolving North Lake Shore Drive through the use of a two-level, stacked offshore immersed tunnel meets and exceeds the defined NLSD Project Needs for safety, mobility, addressing deficiencies, and improving access, circulation and model connections and opportunities.
TAG’s solution resolves the myriad micro-problems with NLSD’s current design in one fell swoop and strategically elevates Chicago by:
1.Eliminating a highway from its visible downtown Lakefront
2.Creating the space for profound Inner Drive and Lakefront Trail improvements
3.Increasing Lincoln Park’s area 7% with 80 new acres.
By making use of existing tunnel technology in an innovative manner, TAG’s solution elevates Chicago to a level of global leadership in multi-modal transportation infrastructure. Leveraging innovative infrastructure finance for the $2.2 billion PPP budget provides the capital needed to invest in job creation and preparing Chicago and the metro region for a more sustainable future. And the pay-per-use toll model via I-Pass enables a sub-14 year project payback period.
If we are to follow Daniel Burnham and “make no little plans”, then TAG’s immersed tunnel solution should be selected as the preferred alternative and implemented over two years by 2020. Thank you for your time and consideration.

12. TAG Holding LLC’s Proposal for:
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Prepared by and Property of:
James Price Chuck
T: 312 507 9792
E: james.price.chuck@tagholdingllc.com
A: 5000 N. Marine Dr., Chicago IL 60640
Disclaimer: Some statements made or information contained in this presentation are forward-looking in nature. As such, they are subject to certain risks and uncertainties, many of which are beyond the control of TAG Holding Alpha LLC. This could cause the actual results to differ from those referenced, projected or contemplated herein.