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Gilbert Chlewicki, PE

Transportation Engineer and Planner
Advanced Transportation Solutions
301.395.9971

gchlewicki@divergingdiamond.com

EDUCATION
CERTIFICATIONS
EXPERIENCE
SPECIALTIES
1st DDI opened to traffic in the US
Details    Edit
Updated: May 10, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Abstract: 1st DDI opened to traffic in the US
Region: USA - South-Central Videos: Yes
Road: I-44 Pics: Yes
City: Springfield ,MO ,US Docs: No
Lat/Lon: 37.250404358 ,-93.310737610 Links: No
1 people have recorded their role in this project.
Credits


Likely First DDI in NY State
Details    Edit
Updated: May 22, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Abstract: Diverging Diamond Interchanges
Region: USA - Northeast Videos: No
Road: I-590Winton Road Pics: No
City: Rochester ,NY ,US Docs: No
Lat/Lon: 43.107509613 ,-77.575599670 Links: No
2 people have recorded their role in this project.
Credits

An Ho   
Role: Added or clarified information.

Diverging Diamond in the Salt Lake City area
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Region: USA - Mountain West Videos: No
Road: 2100 S FwyBangerter Highway Pics: No
City: Salt Lake City ,UT ,US Docs: No
Lat/Lon: 40.725849152 ,-111.985931396 Links: No
3 people have recorded their role in this project.
Credits

Markus Epple   
Role: Added or clarified information.

DDI planned in Wilmington, NC area
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Planned
Region: USA - Southeast Videos: No
Road: I-140NC 133 Pics: No
City: Castle Hayne ,NC ,US Docs: No
Lat/Lon: 34.316581726 ,-77.920204163 Links: No
2 people have recorded their role in this project.
Credits

An Ho   
Role: Added or clarified information.

DDI on I-95
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Region: USA - Southeast Videos: No
Road: I-95US 301 / Fayetteville Road Pics: No
City: Lumberton ,NC ,US Docs: No
Lat/Lon: 34.670288086 ,-79.005699158 Links: No
3 people have recorded their role in this project.
Credits

Markus Epple   
Role: Added or clarified information.
Jonathan Dough   
Role: Added or clarified information.

I-40 & Union Cross Rd DDI
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Region: USA - Southeast Videos: No
Road: I-40Union Cross Road Pics: No
City: Winston-Salem ,NC ,US Docs: No
Lat/Lon: 36.075092316 ,-80.109291077 Links: No
2 people have recorded their role in this project.
Credits

Jonathan Dough   
Role: Added or clarified information.

Ashville Airport Rd DDI
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Region: USA - Southeast Videos: No
Road: I-26NC 280 Pics: No
City: Asheville ,NC ,US Docs: No
Lat/Lon: 35.440288544 ,-82.535812378 Links: No
2 people have recorded their role in this project.
Credits

Jonathan Dough   
Role: Added or clarified information.

Davidson Hwy DDI
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Region: USA - Southeast Videos: No
Road: I-85NC 73 Pics: No
City: Concord ,NC ,US Docs: No
Lat/Lon: 35.435066223 ,-80.657966614 Links: No
1 people have recorded their role in this project.
Credits


Poplar Tent RD DDI
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Abstract: DDI openned in 2014. At 2 nearby intersections, left turns onto Poplar Tent Rd are restricted by superstreet designs, with one loon on either side of I-85.
Region: USA - Southeast Videos: No
Road: I-85Poplar Tent Road Pics: No
City: Concord ,NC ,US Docs: No
Lat/Lon: 35.402069092 ,-80.698188782 Links: No
1 people have recorded their role in this project.
Credits


Design/Build DDI in North Carolina
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Abstract: I-485 will be completed as a beltway around Charlotte with a couple of new interchanges. The interchange at this location will be a DDI. Originally planned for a 10 lane SPUI bridge with failing LOS, I was able to convert this to a 7 lane DDI with LOS D or better for all movements in the design year.
Region: USA - Southeast Videos: No
Road: Mallard Creek RdI-485 Pics: No
City: Charlotte ,NC ,US Docs: No
Lat/Lon: 35.362003326 ,-80.749237061 Links: No
2 people have recorded their role in this project.
Credits

Markus Epple   
Role: Added or clarified information.

DDI in North Carolina
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Abstract: Could possibly be the first DDI in North Carolina. North Carolina is planning many DDIs right now.
Region: USA - Southeast Videos: No
Road: I-77Catawba Ave. Pics: No
City: Cornelius ,NC ,US Docs: No
Lat/Lon: 35.483798981 ,-80.874794006 Links: No
1 people have recorded their role in this project.
Credits


Battlefield Road DDI
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Abstract: Yet another DDI planned in Springfield, MO. Opened Valentine's Day, 2015.
Region: USA - South-Central Videos: No
Road: US-65Battlefield Road Pics: No
City: Springfield ,MO ,US Docs: No
Lat/Lon: 37.158187866 ,-93.224426270 Links: No
1 people have recorded their role in this project.
Credits


Chestnut Expy at US-65 DDI
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Abstract: Another DDI in Springfield. Because the DDI is such a cost efficient solution, the Springfield area has been able to afford fixing many of their interchanges into DDIs.
Region: USA - South-Central Videos: No
Road: E Chestnut ExpyChestnut Expy Pics: No
City: Springfield ,MO ,US Docs: No
Lat/Lon: 37.209712982 ,-93.225944519 Links: No
2 people have recorded their role in this project.
Credits

Markus Epple   
Role: Added or clarified information.

Stadium Blvd DDI
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Abstract: DDI in Columbia, MO opened 2013.
Region: USA - South-Central Videos: No
Road: I-70Stadium Blvd. Pics: No
City: Columbia ,MO ,US Docs: No
Lat/Lon: 38.968143463 ,-92.370903015 Links: No
1 people have recorded their role in this project.
Credits


First DDI in Branson, Missouri
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Abstract: Construction began May 16, 2011 to convert interchange to a DDI.
Region: USA - South-Central Videos: No
Road: US-65US-65 BUS Pics: No
City: Branson ,MO ,US Docs: No
Lat/Lon: 36.657276154 ,-93.222045898 Links: No
2 people have recorded their role in this project.
Credits

An Ho, PM   Dev.
Role: Added or clarified information.

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