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The Fred Hartman Bridge had been designed to replace the Baytown Tunnel (of depth clearance 40 feet (12.2 m)), [4] which had to be removed when the Houston Ship Channel was deepened to 45 feet (13.7 m), with a minimum 530 feet (161.5 m) bottom width, to accommodate larger ships.
The bridge, named for Fred Hartman (1908–1991), the editor and publisher of the Baytown Sun from 1950 to 1974, is the longest cable-stayed bridge in Texas, and one of only four such bridges in the state, the others being Veterans Memorial Bridge in Orange County, Margaret Hunt Hill Bridge in Dallas and Bluff Dale Suspension Bridge in Erath ...
The route then interchanges SH 225 before crossing at the Fred Hartman Bridge over the Houston Ship Channel; from 1953 to 1995, SH 146 crossed under the Houston Ship Channel via the Baytown Tunnel. In Baytown , the highway forms one of its business routes and then interchanges SH 330 before looping east.
It is the only underwater vehicle tunnel currently in operation in the state, as the Baytown Tunnel was replaced in 1995 by the Fred Hartman Bridge. [4] The tunnel consists of a single bore, 895 meters (2,909 feet) in length, with a six-percent roadway grade outward from the center towards each exit.
When the Baytown Tunnel was removed in 1997 to allow deepening and widening of the Houston Ship Channel (it was replaced by the Fred Hartman Bridge), it was the largest tunnel so removed (35 feet (11 m) diameter by 1,041 feet (317 m) length) without closing the channel, losing time due to accidents, or impacting the navigational safety of the port.
Baytown is linked to Interstate 10 (Baytown East Freeway) by State Highway 99 (Grand Parkway), State Highway 146 (Lanier Freeway) and Spur 330 (Decker Drive). It is also linked by the Fred Hartman Bridge, which crosses into the city from nearby La Porte; the bridge was built in 1995, replacing the Baytown Tunnel, to allow a deeper ship channel.
The La Porte-Houston highway was dedicated in 1929, following a route along most of the current alignment. [2] The highway was designated on December 21, 1935, with the western terminus of the route at US 75.
Other lists of U.S. bridges. By height; By state; By city Boston; New York City; Pittsburgh; Portland, Maine; Portland, Oregon; Seattle; Cable-stayed bridges; Covered ...