“Think traffic on Mopac is bad now, imagine 30,000 more cars per day once SH45 SW is built”

Is this what Austin needs? We don't think so.

Don't be fooled. Stop 45 SW and the conversion of Mopac into a second I-35!

State highway planners are trying to pull a fast one on Austin. At different times they talk to the public about five separate toll projects in southwest Austin, but they rarely connect the dots. The reality will be a massive 12-to-16 lane, partially tolled highway loop from I-35 south of Austin west to Mopac and north to Lady Bird Lake and beyond.

Once it’s completed, and the traffic floodgates open, we can kiss Austin’s quality of life goodbye. As traffic expert Mike Brown says, if South Mopac is connected to I-35 by constructing the proposed SH 45 SW, then traffic on Mopac will “explode” and you simply cannot add enough lanes to Mopac to accommodate all of the traffic. (continue reading here)

April 2016 Update – What you can do!

Send an email message to Governor Abbott and other state and local officials today.

Have your neighborhood or civic group pass a Keep Mopac Local resolution like this one.

Donate to support the Keep Mopac Local coalition – fully tax-deductible.

The citizen campaign to stop the backdoor conversion of Mopac into a second I-35 continues to gather steam. In late February citizen leaders and civic groups working with the Keep Mopac Local coalition filed suit in federal court to stop the toll loop project without required federal environmental studies and approvals. Read the lawsuit here and the press release here.

The suit was filed by citizen activist Shudde Fath; Austin music community stalwarts Susan and Jerry Jeff Walker; aquatic biologist Dr. Laurie Dries; former Austin mayors Carole Keeton and Frank Cooksey and civic groups Save Barton Creek Association, Friends of the Wildflower Center, Mopac Corridor Neighbors Alliance, The Friendship Alliance of Northern Hays County, Save Our Springs Alliance, and Clean Water Action.

The lawsuit against TxDOT and its toll road partner, the CTRMA, will not likely be resolved until late fall or possibly early next year.

More recently, Travis County Judge Sarah Eckhardt wrote a stern letter to the U.S. Fish & Wildlife Service urging them to inform TxDOT and the CTRMA of their obligations under the Endangered Species Act and the National Environmental Policy Act. In previous letters analyzing the situation, USFWS made it clear they agreed with this perspective, but used sufficiently mushy language for TxDOT to ignore the Service’s position.

We’ll now see if USFWS will be a bit more blunt on the matter. It should be, armed with the new information that Golden-cheeked warblers have returned to mapped warbler habitat on and immediately adjacent to the proposed route for SH 45 SW Phase I. City biologists have confirmed the presence of warblers with multiple observations. TxDOT funded research by biologists for Texas A&M predict even more birds are or will be nesting on and along the SH 45 SW right-of-way (without the road, of course). The harm that will be done to the listed “endangered” songbirds triggers a legal mandate to secure Service approval for “incidental take” of songbirds prior to construction. So far, TxDOT has ignored this legal mandate. The new information and the lawsuit should change this matter.

Two other developments have arisen to give pause to TxDOT’s governing board in moving forward in the face of these mounting legal problems. There is a growing anti-toll road movement among both Republic and Democrat state officials that makes it harder for the Texas Transportation Commission and Governor Abbott to continue debt-financing of unpopular toll roads. There is also now a push to “untoll” SH 130, so that it will serve its role of relieving congestion on I-35. This is a much preferred option over pumping more than a billion dollars into converting Mopac into an I-35 relief route passing through established neighborhoods in central south and north Austin.

There is also a growing call to protect the Lady Bird Johnson Wildflower Center from the noise, air, water, and visual pollution that would come with building the 45SW/Mopac toll loop and diverting 30,000 cars and trucks per day past the Wildflower Center. The Friends of the Wildflower Center group (not affiliated with the University of Texas or the UT-owned Wildflower Center) is standing up to protect the Center from the proposed toll loop. The group consists of former Wildflower Center board members and current Wildflower Center volunteers and donors. This action by true friends of the Wildflower Center is necessary because UT is not authorized to take action against its sister state agency, TxDOT.

For more information check out the Friends of the Wildflower Center website and take a minute to send a message to Governor Abbott to protect Lady Bird’s legacy.

For more information: Contact us at This email address is being protected from spambots. You need JavaScript enabled to view it.

Future View

Proposed toll loop showing three segments of proposed Mopac toll lanes (1,2,3) and two segments of proposed SH 45 SW toll road (4 and 5) and interim "alternative" loop, expansion of FM 1626.

Mike Brown on SH45

Mike Brown of Metro Analytics tells the truth about SH45.

Brigid Shea

Travis County Commissioner Brigid Shea.

Jim Harrington

Jim Harrington, Texas Civil Rights Project Executive Director.

Attorney Marisa Perales

Attorney Marisa Perales.

Clark Richards

Clark Richards, son of the late Governor Ann Richards.

Flint Ridge Cave Recharge

Video showing the Flint Ridge Cave recharge feature.


For more information and daily updates, please visit the South Mopac Neighbors' Alliance Facebook page.

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