Rearview Mirror: 5 Vehicular Tunnels Were Built out of 14 Proposed

Quoted in Bob Sigall's article Rearview Mirror: 5 vehicular tunnels were built out of 14 proposed

Pali Highway to UH
Panos Prevedouros, professor of transportation engineering at the University of Hawaii, proposed this tunnel in 2012 to alleviate H-1 congestion. One tunnel could provide two lanes in each direction, he said.
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I was surprised that Bob Sigall discovered this tunnel proposal I studied with James Tokishi (a UHM CEE graduate) for HDOT. As far as I know, it has not been published anywhere. It was supposed to be a low clearance double-decker single bore tunnel (like A86 in Paris*), roughly from Pali Hwy. at Kuakini St. to Wilder Ave. at Dole St.

* https://tunnels.piarc.org/en/system/files/media/file/appendix_2.08_-_france_-_paris_-_duplex_a86.pdf

Honolulu to Ewa Beach

In the late 1960s a tunnel under the entrance to Pearl Harbor was proposed by the state House of Representatives to help leeward commuters get to town more quickly. It could shave 30- 40 minutes off their commute, some felt.

DOT Director Fujio “Fudge” Matsuda said the tunnel would be 7,000 feet long and cost over $750 million (in today’s dollars).

High maintenance costs, vulnerability to tidal wave inundation and Navy objections sank the idea then, but it gets resurrected every now and then. [That's right! See below]

Pearl Harbor Tunnel is a reversible 2-lane relatively short tunnel under the entrance of Pearl Harbor with cut-and-cover sections through the Honolulu International airport, priority lanes along Lagoon Drive and direct connection to the Nimitz Viaduct. Nimitz Viaduct is a 2-lane reversible “flyover” from the Keehi interchange to Iwilei.  Drive times from Ewa to downtown would be reduced from 65 to 11 minutes and the traffic reduction on Ft. Weaver Road and H-1 Fwy. would bring those commuter times down from 65 to 40 minutes.

HOT Lanes and Tunnels are Hot and Free to the Taxpayer

$52 Billion Chicago Plan. Carefully targeted investment to modernize the greater Chicago region's highway system would reduce projected 2040 congestion by 10% overall and by 20% within Chicago itself, according to a major report from the Reason Foundation's Galvin Mobility Project. The plan includes a 275-mile HOT lanes network, a new Outer Beltway, and several urban highway tunnels. All the new capacity would be variably priced, and projected revenues of $58 billion would exceed the $52 billion construction cost, according to detailed modeling carried out for the study.

Steps Toward DC-Region Express Toll Network. On August 1st, Virginia DOT and the Fluor/Transurban joint venture that is nearing completion of the Capital Beltway (I-495) Express Lanes, reached commercial and financial close on the $940 million I-95 project. It will convert the existing two reversible HOV lanes to three reversible Express Toll lanes along 28 miles of I-95. Across the river in Maryland, the Maryland State Highway Administration is studying potential express toll lanes for the I-270 corridor, which heads northwest from the Beltway.

Largest Infrastructure Fund Exceeds $7 Billion. Infrastructure Investor reported on July 31st that the world's largest infrastructure investment fund, Global Infrastructure Partners II, has amassed $7.02 billion in capital, towards its target of $8 billion. Overall, such funds have raised an estimated $200 billion over the past decade.

Port of Miami Tunnel at Half-Way Mark. The massive tunnel boring machine that is creating the tunnel between the Miami area's expressway system and the Port of Miami on Watson Island has completed the first of two 4,200-foot tunnels under Government Cut. The next step is for the TBM to be turned around to dig the parallel tube over a six-month period. The $607 million tunnel is being procured under a 30-year concession.

Dutch Pension Fund Buys Stake in Texas Managed Lanes. Pension fund APG from the Netherlands has invested $300 million to acquire a 12.3% equity stake in the North Tarrant Express and a 13.3% stake in the LBJ managed lanes project. Both are being developed by a Cintra/Meridiam concession company. Both concessions are for 52 years.

Source of the summaries: Robert Poole, the Reason Foundation.