Jefferson Avenue Needs A Road Diet, Corridor Study Part 1
Jefferson Avenue is a 5+ mile north-south arterial road in south, central, and north St. Louis (map). Along this stretch the road has 4-6 travel lanes, a center turn lane, and sometimes 2 parking lanes. What’s pretty consistent is the public right-of-way and curb to curb widths are excessively wide.

Here are some examples of the right-of-way width in locations you might be familiar:
- Jefferson @ Russell: 120 feet
- Lindell @ Euclid: 100 feet
- Kingshighway @ Delmar: 100 feet
- Grand @ Hardford: 80 feet
- Chouteau @ Mississippi: 80 feet
- Manchester @ Taylor: 70 feet
The above figures are from Sanborn Maps, mostly from 1909. Again, these are the public right-of-way (PROW), which includes the road and sidewalks. In an urban context this is measured from the face of a building to the face of the building on the opposite side. The road & sidewalk widths can vary within the PROW.
At Russell, Jefferson has a wider PROW than streets like Grand, Lindell, and yes — Kingshighway! This partly explains why Jefferson doesn’t have the same “feel” as South Grand. The wider the curb to curb, the faster traffic travels. The faster the traffic, the fewer the pedestrians. Fewer pedestrians & faster traffic means businesses will focus on customers in cars, not pedestrians. This reality conflicts with adjacent neighborhoods that seek a more urban environment, like McKinley Heights whose code required Family Dollar to build more urban than usual.

Jefferson passes by many neighborhoods and political wards, with different ones on the east & west sides. With schools & residents on both sides crossing the street is important. Some intersections have pedestrian signals, others, like Russell, do not. The east side is the McKinley Heights neighborhood & 7th Ward while the west side is the Fox Park neighborhood and the 6th ward, such fragmentation makes it challenging to get projects done.
Hopefully enough residents from both neighborhoods can convince Phyllis Young (7) and Christine Ingrassia (6) to take a closer look at Jefferson Ave.
I’d like to see the following in the short-term:
- Stripe Jefferson to just 4 travel lanes end to end
- Include a solid white outside line separating the right travel lane from the parking lane as MoDOT did on Gravois
- Add pedestrian signals with countdown timers at existing signalized intersections currently lacking pedestrian signals
- Stripe crosswalks in the more visible “Continental” pattern
In the longer term I’d like to see:
- A detailed corridor study looking at all transportation modes (car, bike, transit, pedestrian), development patterns & potential, etc
- A charrette to look at designing a new streetscape.
In the coming weeks & months I’ll post more about problems & solutions for Jefferson Ave.
— Steve Patterson








