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Great Lakes Roads:
https://www.siouxfalls.org/public-works/street-construction/projects/2023/benson-229-interchange

The city of Sioux Falls (in coordination with SDDOT) will be reconstructing the Benson Road/Interstate 229 interchange to a diverging diamond interchange (DDI)...

"This project will reconstruct the Benson Road and I-229 Interchange into a diverging diamond configuration, and will feature the City’s first triple left turn lane when the project is completed! West of I-229, Benson Road will be widened to 3 lanes in each direction with turn lanes and a raised median. East of I-229, Benson Road will be widened to 2 lanes in each direction with turn lanes and a raised median. Additional improvements to Benson Road include concrete pavement, new bridge installation and existing bridge deck rehabilitation, water main, sanitary sewer repairs and installation, storm drainage improvements, street light and traffic signal improvements, new accessible curb ramps, and concrete curb and gutter. The City is partnering with the South Dakota Department of Transportation on this project."

Construction just started a week ago (April 3), and it's expected to be completed in June 2025. Price tag: $36 million

Great Lakes Roads:
Public meeting for the I-90 Exit 63 interchange in Box Elder on April 13th from 6-7:30 pm at its city hall.

https://www.i90exit63.com/events

The preferred alternative that SDDOT went with is Alternative 3B, which will reconstruct the existing interchange to a diverging diamond interchange (DDI) with auxiliary lanes being added along I-90 between exits 61 and 63.

Construction on this project will likely begin in 2027, with the completion year in 2029. Estimated project cost: $55 million

The project itself will be split up into three phases:
Phase 1 — Highway 1416 closed
Phase 2 — EB lanes closed, head-to-head traffic on Existing I-90 WB
Phase 3 — WB lanes closed, head-to-head traffic on Proposed EB I-90

Link to the presentation materials: https://static1.squarespace.com/static/5d68047e99e03b0001ed16af/t/642aed1ac7f733487c511335/1680534818859/PCN3022_PublicMeetingPowerPoint.pdf

X99:

--- Quote from: Great Lakes Roads on April 10, 2023, 06:38:08 PM ---Public meeting for the I-90 Exit 63 interchange in Box Elder on April 13th from 6-7:30 pm at its city hall.

https://www.i90exit63.com/events

The preferred alternative that SDDOT went with is Alternative 3B, which will reconstruct the existing interchange to a diverging diamond interchange (DDI) with auxiliary lanes being added along I-90 between exits 61 and 63.

Construction on this project will likely begin in 2027, with the completion year in 2029. Estimated project cost: $55 million

The project itself will be split up into three phases:
Phase 1 — Highway 1416 closed
Phase 2 — EB lanes closed, head-to-head traffic on Existing I-90 WB
Phase 3 — WB lanes closed, head-to-head traffic on Proposed EB I-90

Link to the presentation materials: https://static1.squarespace.com/static/5d68047e99e03b0001ed16af/t/642aed1ac7f733487c511335/1680534818859/PCN3022_PublicMeetingPowerPoint.pdf

--- End quote ---

Took them long enough. Not sure what they plan to do with 1416 though, as I heard earlier plans to push the two roadways together, but with the recent configuration change at Radar Hill that doesn't really work as well as it used to.

Same goes with the new roadway on the west side of the interchange- there's currently nothing there. I once made a proposal in Fictional that extended that roadway all the way to Haines through farmland, but I'm willing to bet that will never happen.

Also, the Gisi Road rebuild is pointless- that's a private driveway that someone slapped a road sign on and somehow it became official.

SD Mapman:

--- Quote from: brad2971 on April 01, 2023, 06:35:37 PM ---
--- Quote from: roadman65 on April 01, 2023, 05:18:24 PM ---https://goo.gl/maps/uLRR9mFiN1Mu9cCs5
What happened to SD 42 and BL I-229?

--- End quote ---

SDDOT, in 2006, turned over SD 42 between Ellis Rd and Six Mile Rd to the city of Sioux Falls. What you're partly seeing is SDDOT very slowly getting around to reflecting that fact at the I-229 interchange. The signage at I-29 and 12th St (Exit 79) is...its own set of issues: https://www.google.com/maps/@43.543323,-96.7796152,3a,37.5y,333.04h,88.67t/data=!3m6!1e1!3m4!1sYTSmq0L9-tEvO46PBw19mQ!2e0!7i16384!8i8192

--- End quote ---
The issue is Sioux Falls still signs 11, 42 and 115 (along with BS 29 and BL 229) in city limits, so the routes are still technically "through". There are no end signs, and the city project to rebuild Minnesota Ave (115) north of downtown (last year) actually replaced the 115 reassurance shields instead of removing them. I'm planning to ask DOT about the exit signage in the greater Sioux Falls area, there's a general lack of consistency (some county routes signed and some not, road names missing, etc) that I'm curious about.

SD Mapman:

--- Quote from: X99 on April 13, 2023, 10:20:42 AM ---
--- Quote from: Great Lakes Roads on April 10, 2023, 06:38:08 PM ---Public meeting for the I-90 Exit 63 interchange in Box Elder on April 13th from 6-7:30 pm at its city hall.

https://www.i90exit63.com/events

The preferred alternative that SDDOT went with is Alternative 3B, which will reconstruct the existing interchange to a diverging diamond interchange (DDI) with auxiliary lanes being added along I-90 between exits 61 and 63.

Construction on this project will likely begin in 2027, with the completion year in 2029. Estimated project cost: $55 million

The project itself will be split up into three phases:
Phase 1 — Highway 1416 closed
Phase 2 — EB lanes closed, head-to-head traffic on Existing I-90 WB
Phase 3 — WB lanes closed, head-to-head traffic on Proposed EB I-90

Link to the presentation materials: https://static1.squarespace.com/static/5d68047e99e03b0001ed16af/t/642aed1ac7f733487c511335/1680534818859/PCN3022_PublicMeetingPowerPoint.pdf

--- End quote ---

Took them long enough. Not sure what they plan to do with 1416 though, as I heard earlier plans to push the two roadways together, but with the recent configuration change at Radar Hill that doesn't really work as well as it used to.

Same goes with the new roadway on the west side of the interchange- there's currently nothing there. I once made a proposal in Fictional that extended that roadway all the way to Haines through farmland, but I'm willing to bet that will never happen.

Also, the Gisi Road rebuild is pointless- that's a private driveway that someone slapped a road sign on and somehow it became official.

--- End quote ---

Looks like they might push the carriageways together at least at the interchange and they might separate again once you get to Radar Hill Rd, we'll have to see how it plays out. My issue here is why are they naming the road west of I-90 Highway 1416 when US 14 and US 16 never went that way? On Gisi Road, they have to preserve existing access, even if it was an unnamed driveway.

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