Recently I came across some information which suggests that, when it was originally built, the I-35/NE 23rd Street interchange in Oklahoma City consisted of a rotary straddling the Interstate. The current configuration is essentially a diamond interchange with crossovers on either side, possibly reusing the original bridges or bridge supports for the rotary in combination with a new bridge to carry NE 23rd over the Interstate:
http://maps.google.com/maps?q=NE+23rd+St,+Oklahoma+City,+OK&ie=UTF8&hq=&hnear=NE+23rd+St,+Oklahoma+City,+Oklahoma&ll=35.493052,-97.464952&spn=0.001594,0.002411&t=h&z=19&vpsrc=6
Does anyone know when this configuration was put in place?
You are correct, the I-35/NE 23 interchange was originally a rotary. The conventional overpass was built sometime in the 1990's IIRC.
Points of interest: The original US 66/Grand Blvd. (current I-44/Hefner Pkwy) interchange was a similar rotary configuration, and the original I-35/US66 (current I-35/SH66) interchange in Edmond was a modified version of same.
And one more: The area in OKC known as Classen Circle was, indeed, once a traffic circle, which was removed in the early 1980's.
I checked Google Earth's historical imagery for the area, and it was a rotary until at least 1995. There's a gap between 95 and 02.
The I35/NE23rd interchange was converted about 8-9 years ago. I will have to look at some old maps to get an exact date. I don't recall the Grand/US66 being a rotary. Will ahve to check on that as well. WOuld have been built in the 50's??
rte66man
Yes, the US 66/Grand rotary would have been built in the mid-1950s, when the first sections of NW Expwy., NE Expwy. and West Expwy. (now NW 39 Expwy.) were built.
https://okhistory.cuadra.com/cgi-bin/starfetch.exe?!28repos=SKCA&starhost=star-asp.cuadra.com&file=SKCA/000hm3.jpg&expire=1318258561&ip=&starid=skcacatremote!29/000hm3.jpg (https://okhistory.cuadra.com/cgi-bin/starfetch.exe?!28repos=SKCA&starhost=star-asp.cuadra.com&file=SKCA/000hm3.jpg&expire=1318258561&ip=&starid=skcacatremote!29/000hm3.jpg)
The link didn't work for me.
rte66man
Exp date passed - looks like a jpg? Maybe we can rehost
Or just mess around with the URL :)
Quote from: Rick1962 on October 10, 2011, 10:06:49 AM
https://okhistory.cuadra.com/cgi-bin/starfetch.exe?!28repos=SKCA&starhost=star-asp.cuadra.com&file=SKCA/000hm3.jpg&expire=999999999999999999999999999999&ip=&starid=skcacatremote!29/000hm3.jpg (https://okhistory.cuadra.com/cgi-bin/starfetch.exe?!28repos=SKCA&starhost=star-asp.cuadra.com&file=SKCA/000hm3.jpg&expire=999999999999999999999999999999&ip=&starid=skcacatremote!29/000hm3.jpg)
Very sly! Learn something every day!
Quote from: NE2 on October 10, 2011, 09:08:01 PM
Or just mess around with the URL :)
Quote from: Rick1962 on October 10, 2011, 10:06:49 AM
https://okhistory.cuadra.com/cgi-bin/starfetch.exe?!28repos=SKCA&starhost=star-asp.cuadra.com&file=SKCA/000hm3.jpg&expire=999999999999999999999999999999&ip=&starid=skcacatremote!29/000hm3.jpg (https://okhistory.cuadra.com/cgi-bin/starfetch.exe?!28repos=SKCA&starhost=star-asp.cuadra.com&file=SKCA/000hm3.jpg&expire=999999999999999999999999999999&ip=&starid=skcacatremote!29/000hm3.jpg)
I wouldn't be surprised if a long string of 9s like that had a 50/50 probability of wrapping around to be a negative number.
Or, you could just get rid of the &exp and &ip fields...
Quote from: NE2 on October 10, 2011, 09:08:01 PM
Or just mess around with the URL :)
Quote from: Rick1962 on October 10, 2011, 10:06:49 AM
https://okhistory.cuadra.com/cgi-bin/starfetch.exe?!28repos=SKCA&starhost=star-asp.cuadra.com&file=SKCA/000hm3.jpg&expire=999999999999999999999999999999&ip=&starid=skcacatremote!29/000hm3.jpg (https://okhistory.cuadra.com/cgi-bin/starfetch.exe?!28repos=SKCA&starhost=star-asp.cuadra.com&file=SKCA/000hm3.jpg&expire=999999999999999999999999999999&ip=&starid=skcacatremote!29/000hm3.jpg)
Asshole, you broke Java!
Thanks for "fixing" the link so I could see it. Would guess the photo to date appx 1953 based on the housing around it.
rte66man