A Trinity toll road surprise meeting has been hastily scheduled. A spring is on the way to getting rescued. And there is fun with maps. Here are the highlights of Dallas city news this week:

Rush toll road meeting
A special rush-rush Transportation & Trinity River Project Committee meeting has been called for March 21. The topic: the Trinity toll road. There'll be presentations by Larry Beasley, who led the special committee created by Mayor Mike Rawlings to review the toll road proposal, and by engineering firm Halff Associates.

This being an important topic which has provoked much debate and disagreement in Dallas for many years, it is getting the kind of last-minute notice and time allotment you might expect: 90 minutes.

The meeting begins at 9 am, but if you want to read along, the proposal is posted on DallasCityHall.com. Facebook entity Wylie H Dallas describes the road as a "junky, mediocre, high-speed limited-access highway."

The Dallas Morning News notes that the city won't be able to get the meandering and tree-lined medians that were promised without another $2 million to $3 million and at least a year.

City council member Scott Griggs posted the agenda, noting that "public involvement and debate continues to be limited."

Saving Big Spring
Historical protection is usually given to buildings, but in Dallas, one may be given to a spring. The City Plan Commission approved protection of the Big Spring, located next to the Texas Horse Park.

Big Spring, one of the few natural springs in North Texas, empties fresh water into the Trinity River. It's where Dallas city founder John Neely Bryan and his wife Margaret Beeman Bryan built a log cabin after the Civil War and lived there into the 1870s, and is surrounded by legendary oaks.

Efforts to save it have included a Facebook page and a website, and The Landmark Commission gave the spring a historic designation in February. It's up to the Dallas City Council to give it a final approval.

Fun with maps
D Magazine created a map showing the home addresses of the State Fair’s board members. The majority reside north of Dallas, in the lu$h zone west of 75 and east of the Dallas North Tollway. A few are sprinkled around White Rock Lake, and a couple in North Oak Cliff, but not one is near Fair Park. "Not that living in, say, Preston Hollow should preclude you from overseeing the three-week event that dominates the city’s largest and most underutilized asset, which happens to be in South Dallas," the post says.

More maps
DallasFoodorg tracked the restaurants reviewed by Dallas Morning News restaurant critic Leslie Brenner in 2015 and plotted them on a trio of maps that reveal a pattern in restaurant location and audience: namely, that the majority of the reviews were expensive restaurants serving wealthy customers in white neighborhoods.