Why you’ll be late to work next week, by the numbers
$33.8 million The total cost of the Loop Track Renewal project that the Wells Street Bridge repair is a part of.
92 years Age of the Wells St. Bridge.
How long the el was closed when the Wells St. bridge was replaced with the current structure in 1922, according to this National Parks Service report.
25% Increase in Uber requests in River North and the Loop during rush hour for the weekdays of the last closure.
700 Weekday trains passing through the junction that’s being replaced as part of the Wells St. Bridge closing, according the CTA.
70,000 People passing over the Wells St. Bridge each day, according to a Chicago Tribune calculation.
4,000 Number of bolts installed during the last closure, according to the Chicago Department of Transportation.
60 Average number of workers per shift during the March construction. There were two 12-hour shifts per day, also per CDOT.
500,000 lbs Weight of the southern half of the bridge, removed last month, per the Chicago Sun-Times.
“Basically Intolerable” The structural rating of the bridge, according to the National Bridge Inventory.
850 Average number of horse teams crossing each of Chicago’s double-decker bridges each day between 7 a.m. and 7 p.m. in a 1922 report in the Journal of the Western Society of Engineers. There were also 1,130 automobiles, 1,000 trains and 7,000 pedestrians.
$22,000 Annual salary of a Wells St. Bridge tender in 1946, per the National Park Service. That’s equivalent to $262,616 today.
$20 million What Chicago would have saved in construction costs by switching to fixed bridges that don’t open for boats, as outlined in an unpublished 1932 study, also in the National Park Service report.
Plus, some bonus numbers on how the rest of the city repairs itself:
317% Approximate bump in inner tube sales at Uptown Bikes from March to April.
1,200 lbs Patching material the Chicago Department of Transportation used to fill more than 116,000 potholes in March, announced in possibly the best press release ever.
9% Increase in what Midwest drivers paid to have their cars repaired in 2012 vs. 2011. The $336.75 they spent was still the lowest in the country, according to the CarMD Vehicle Health Index.
Wells St. Bridge photo by Al Podgorski