In a new report, Highway Boondoggles 2 (the original came out in 2014), U.S. PIRG and the Frontier Group teamed up to profile the most wasteful highway projects that state DOTs are building. Streetsblog will be serializing the case studies in the report. Today, we focus on a road project that risks contaminating the water supply in and around Austin, Texas.
Building a controversial brand new, four-mile, four-lane toll road would increase traffic on one of the most congested roads in Austin, and increase water pollution in an environmentally sensitive area critical for recharging an aquifer providing drinking water to 2 million Texans.
The Texas Department of Transportation’s efforts to connect Austin’s MoPac Expressway to I-35 along Bear Creek date back to the 1980s. For 20 years, the connection from I-35 to MoPac, formally called Loop 1 and nicknamed after the old Missouri-Pacific railway that ran where the road now does, has not been a high enough priority to attract funding.
Now, efforts are coming together to build the first leg of that road, from MoPac to Farm-to-Market Route (FM) 1626, a state-maintained road running roughly northwest from Hays to the Ashbrook neighborhood of Austin. The currently proposed extension would intersect with FM 1626 just south of Big Valley Road, four miles from where FM 1626 meets I-35. TxDOT has separated the other segments of the connector road into distinct projects; each piece must be evaluated on its own merits, as well as its connection to the larger concept.
Most of the money for the connection of MoPac to FM 1626 will come from the Texas Department of Transportation, which is providing $29 million in grant funding, and another $60 million in bond authorizations, which will be repaid by projected toll revenue. An additional $5 million will come from Hays County, and $15 million more from Travis County.
The money will be spent on a project that TxDOT admits would draw new traffic to MoPac, which is already being expanded in hopes of relieving existing congestion. Continuing the road across FM 1626 and connecting directly to I-35 would be the next step, drawing even more traffic through the two busy roads.
TxDOT predicts that building the new highway segment would increase the number of miles driven by an average of 15 percent on all roads in the surrounding area. All of that traffic would result in more air pollution than would happen without the highway.
The highway project’s water pollution control plans allow for oil, grease, and other pollutants resulting from construction and use of the highway to enter the area’s surface water and groundwater.
The money intended for State Highway 45 Southwest could be used to help support other transportation priorities in the area. The surface conditions of existing roads in Austin and the surrounding counties, for example, are expected to decline from 2015 through 2018, even with the level of investment currently scheduled. There are 21 structurally deficient bridges in the region covered by the Capital Area Metropolitan Planning Organization.
In addition, funds are needed to support the growing range of transportation options that are already enabling more residents in fast-growing Austin to travel without adding to congestion on the roads. For example, the city’s transportation agency, Capital Metro, wants to spend $29 million to lay a second set of tracks to improve Red Line service into downtown, and another $111 million to buy additional rail cars, upgrade stations, and make other improvements to allow for even more passenger service.
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