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Old 11-16-2010, 08:49 AM
 
5,358 posts, read 15,057,841 times
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Quote:
Originally Posted by spmcorn View Post
Why are they only opening 3 lanes in the end, with a large shoulder (for expansion in the future)??? The future IS HERE NOW!! We need 4 lanes open per side!! We have a HUGE traffic problem NOW! Why not give us the 4 lanes that are currently there, instead of only 3 with a big shoulder. I really don't this logic!!!???
To me, it looks like they only built one extra lane on the inside. They've created the illusion that there are 4 lanes by the way they've drawn the lines on the temporary lanes, but you'll notice that there is no shoulder on the inside temporary lane and the outside temporary lane uses some of the old roadway.
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Old 11-16-2010, 08:53 AM
 
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Quote:
Originally Posted by NewUser View Post
To me, it looks like they only built one extra lane on the inside. They've created the illusion that there are 4 lanes by the way they've drawn the lines on the temporary lanes, but you'll notice that there is no shoulder on the inside temporary lane and the outside temporary lane uses some of the old roadway.
Correct - the improvement brings the highway from four to six lanes. Three per side. From the DOT page:

"Work will include adding one 12-foot wide lane and one 12-foot wide shoulder in each direction of I-40, expanding the interstate from four to six lanes. The new shoulders will be built to the same depth as the roadway, which will allow for easier expansion of the highway in the future. The bridges carrying I-40 over Wade Avenue and U.S. 1/64 will also be widened so they will have the capacity for eight lanes in anticipation for future widening along this section of I-40. "

Frank
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Old 11-16-2010, 09:20 AM
 
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Quote:
Originally Posted by spmcorn View Post
Why are they only opening 3 lanes in the end, with a large shoulder (for expansion in the future)??? The future IS HERE NOW!! We need 4 lanes open per side!! We have a HUGE traffic problem NOW! Why not give us the 4 lanes that are currently there, instead of only 3 with a big shoulder. I really don't this logic!!!???
It's only ever been planned and built as an expansion from 2 to 3 lanes.
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Old 11-16-2010, 09:32 AM
 
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Quote:
Originally Posted by frankpc View Post
"Work will include adding one 12-foot wide lane and one 12-foot wide shoulder in each direction of I-40, expanding the interstate from four to six lanes. The new shoulders will be built to the same depth as the roadway, which will allow for easier expansion of the highway in the future. The bridges carrying I-40 over Wade Avenue and U.S. 1/64 will also be widened so they will have the capacity for eight lanes in anticipation for future widening along this section of I-40. "
OK, so now I've changed my opinion since I've read this. Does this mean that all they'll have to do is re-stripe the highway . . . turning the shoulder into a lane. . . . and ta-da. . . . . we now have 8 lanes?
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Old 11-16-2010, 10:28 AM
 
Location: Cary, NC
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^^^No, they'll have to add a fresh set of inside shoulders and do some other work, but at least they're looking ahead now so that they won't have to totally redo things to move to four lanes.

The initial plan was to go straight to four lanes in each direction, but the money wasn't there.

http://www.newsobserver.com/2007/09/...0-stretch.html
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Old 11-16-2010, 10:42 AM
 
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I remember the last time they widened it... seems like they only finished about 3 years ago... hope it goes better, since the last one had to be paved with asphalt over the new concrete pavement
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Old 11-16-2010, 10:59 AM
 
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Originally Posted by Raleigh-lvr View Post
I remember the last time they widened it... seems like they only finished about 3 years ago... hope it goes better, since the last one had to be paved with asphalt over the new concrete pavement
Not quite - they had poured concrete over the old lanes to match the new lane, and improperly installed it such that it had to be removed and replaced with asphalt, which they then applied over the new lane as well. Still, NCDOT did manage to muck it up pretty good.

I hadn't realized the shoulder on the new project was being built to road specifications. It does sort of beg the question - why not use it as a lane?
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Old 11-16-2010, 11:43 AM
 
Location: Cary, NC
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Quote:
Originally Posted by CHTransplant View Post
I hadn't realized the shoulder on the new project was being built to road specifications. It does sort of beg the question - why not use it as a lane?
Because Interstate highway standards require a minimum inside shoulder of 4 feet, with 10 feet being the standard for Interstates of three or more lanes as this will be. Areas meeting certain thresholds for high truck traffic should have 12-foot inside shoulders, and shoulder requirements are less stringent for mountainous terrain, although I don't believe the former (and certainly not the latter) apply in this case.

Waivers can be granted, but there seems to be no reason why would be available for this stretch of I-40...plenty of median space and level ground makes it easy to meet federal standards.
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Old 11-16-2010, 12:55 PM
 
Location: Morrisville, NC
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Hey, at least they built the bridges so they don't have to be completely reworked when it is widened again. For once DOT seems to be thinking ahead.
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Old 11-17-2010, 06:43 AM
 
9,198 posts, read 21,167,322 times
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Quote:
Originally Posted by SFspiderman View Post
Because Interstate highway standards require a minimum inside shoulder of 4 feet, with 10 feet being the standard for Interstates of three or more lanes as this will be. Areas meeting certain thresholds for high truck traffic should have 12-foot inside shoulders, and shoulder requirements are less stringent for mountainous terrain, although I don't believe the former (and certainly not the latter) apply in this case.
I had thought the reference was to outside shoulders being built with an eye toward future expansion.
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