The John H. Bankhead Tunnel (Bridge Hunter) under the Mobile River on the west end of the US-90 bridge has a date of 1940, so I assume that is when the US-98 causeway opened.
The George C. Wallace Tunnel at the west end of I-10 is now considered obsolete because of congestion. So plans are underway to replace the 4 lanes of the tunnel with a 6-lane cable stayed bridge and to double the number of lanes in the Jubilee Parkway. The new parkway would also be higher to pass a 100-year storm surge. [wkrg via Dennis DeBruler]
I-10 is a 39,600' (12km, 7.5 miles) "concrete stringer bridge." [BridgeHunter]
The only way to understand the length of these crossings is a satellite image. I've seen a highway interchange over water in China, but this is the first one I've seen in the USA.
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| Satellite |
I-10 is a 39,600' (12km, 7.5 miles) "concrete stringer bridge." [BridgeHunter]
However, when I started looking at street views, I discovered that "the Battleship Parkway is mostly causeway fill with only small bridges over various outlets." [ArchivedBridgeHunter]
This is looking East from the interchange with US-98 on the left and I-10 on the right.
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| Street View, May 2024 |
This is the bridge for the Apalachee River outlet. So the outlet bridges are also concrete stringer bridges.
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| Street View, May 2024 |
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| Alabama Memories posted Mobile Bay in the the 1980s Photo credit: W. T. Triplett |
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