Posts Tagged ‘Alton’

Today the NWS gave us bad news and confirmed that the Mississippi River at Alton will go past the 29 foot threshold as early as Monday.  The bad news when the river hits that point is that the southbound lanes of 367 just south of the Clark Bridge start to flood and that usually renders the southbound direction of the Clark Bridge off limits.alton-apr30at1700

The projected crest is on Wednesday at or around the 33 foot mark.

Based on an recent MoDOT press conference held this evening, the NB lanes of 367 will be converted into two-way traffic and that will help with the heavier than normal traffic on this section of 270. However, this also means that there will be delays in both the AM and PM peak starting Monday afternoon and lasting likely through the end of the week. Either way, traffic on 270 will be heavier than normal for a few days, the canal bridge area is a known choke point, and plan on delays on both the Clark Bridge and the Chain of Rocks.

Last night, MoDOT has shut down the southbound lanes of 67 just south of the Clark Bridge due to the flooding.  The Mississippi River is at 30.3 feet at Alton at this time and expected to crest just shy of 31 feet tomorrow.  This means that people out of the River Bend cannot use the Clark Bridge during the morning peak, and there is no expectation of MoDOT switching the northbound lanes to two-way traffic at this time.  This means starting tomorrow morning and lasting the next few days that there will be more traffic than normal during the morning peak, and this could lead to delays.  If you plan on using this section of 270, you are better off getting on from 111 or 255 as opposed from Route 3 or Old Alton Road.  This also means that this is not a good time for an epic fail to occur on this section of 270, as all the northerly alternate routes are off-limits should things go wrong during the morning peak.

UPDATE 22:00 – MoDOT will be switching the northbound lanes to two-way traffic, but it will not occur before 15:00 Monday.  Regardless, expect heavier than normal peak periods for a few days, especially for the morning peak on Monday.

Want to go southbound on this bridge out of Alton for the morning peak?  Plan on a different bridge.

Want to go southbound on this bridge out of Alton for the morning peak? Plan on a different bridge.

Due to an implosion of the old westbound canal bridge structure that was apparently botched, IDOT has announced that tomorrow from 09:45 to 12:00 that 270 in both directions from Riverview to Route 3 will be closed once again for another blast of the old westbound canal bridge structure.  Weather is not expected to be favorable tomorrow but that system is not expected to arrive until the evening peak.

Until that happens, unless otherwise has been announced on Twitter, one eastbound 270 lane will remain closed on the new canal bridge.  This means peak hour traffic tonight need to consider the detour routes as a #CodeRED alert is likely going to go up soon for the evening peak.