If you drove through the SH-75 and Elkhorn Road intersection in the last few weeks and noticed the cones were gone, the signal was back on, and traffic was moving the way it used to, you'd be forgiven for assuming the whole mess was over. It isn't. It moved.
The Idaho Transportation Department reopened Elkhorn Road between Highway 75 and Weyyakin Drive on the evening of August 5, two days ahead of its own schedule, after closing the 750-foot stretch on July 13 to rebuild the east half of the intersection. That part is genuinely finished, and finishing early is worth noting on a project that's had its share of delays. But the reopening didn't end the work. It shifted it. Traffic now runs on the newly completed east side so crews can start building the west half of the same intersection, and ITD says to expect this arrangement to hold through late 2026. If you live on or near Elkhorn Road, the commute you have right now is not necessarily the commute you'll have by Thanksgiving.
What Actually Reopened on August 5
The closure itself was narrow in scope but outsized in effect: about 750 feet of roadway, from the highway to near Boulder Court, shut down entirely except for emergency vehicles for 26 days. The Sun Valley City Council approved it in a 3-1 vote in late May, over the objections of at least one member and plenty of residents who'd already lived through more than a year of Highway 75 construction between St. Luke's and River Street in Ketchum. ITD's district engineer told the council that closing the road would let crews finish the intersection's east half fast enough to keep the broader schedule intact. Skip the closure, he said, and the intersection work alone could slip into 2027, with the risk of dragging the larger highway rebuild into 2028.
It worked, on that narrow point. Crews finished ahead of the 26-day window, the road reopened August 5 instead of August 7, and the traffic signal at Elkhorn and SH-75 came back on. What's easy to miss in the good news is what ITD said in the same announcement: traffic has moved to the east side specifically so crews can now build the west half of the intersection, and drivers should expect this pattern, not a return to pre-construction normal, for the rest of the year.
The Late-2026 Deadline and What's Still Open
Zoom out and the Elkhorn Road closure was one piece of a longer project ITD calls SH-75: Elkhorn Road to River Street. It's been under construction since 2025. An ITD press release from spring 2025 set a completion target of late 2026, and the project's own page still lists that timeline. The intersection rebuild at Elkhorn Road is one deliverable inside a larger scope that includes:
- Widening SH-75 between Weyyakin Drive and River Street
- Rebuilding the intersection at SH-75 and Serenade Lane
- A short-term closure at that same Serenade Lane intersection sometime between summer and late fall 2026, with traffic detoured to SH-75, River Street, and 2nd Avenue
- Limited pedestrian access between Andora Lane and River Street, including on the Trail Creek Bridge, for the remainder of 2026
None of that is finished. The Elkhorn Road piece was the most disruptive because it's the busier of the two primary routes in and out of Sun Valley, but it was never the whole project. If you've mentally filed the road construction under "done," the Serenade Lane closure later this fall is going to feel like a surprise it doesn't need to be.
Two Roads, One Bottleneck
Part of why this matters more here than it would somewhere with a denser street grid: Sun Valley only has two primary ways to reach Highway 75 and the rest of the Wood River Valley. One is Elkhorn Road. The other runs through the four-way intersection of Dollar Road, Saddle Road, and Sun Valley Road. When ITD closed the Elkhorn Road segment in July, that second route absorbed the overflow, and Highway 75 traffic through the work zone ran without a signal at Elkhorn for over three weeks. One resident who identified themselves as living on Elkhorn Road put it plainly in a public comment on the closure: it was going to be a major factor in daily decision making, not a minor inconvenience. That's the honest read for the Serenade Lane closure coming later this year too. When one of two arteries narrows or closes, the other one carries the weight, and there's no third option to fall back on.
What Still Runs on Schedule
Not everything in Elkhorn moves at ITD's pace. The Sun Valley Elkhorn Association's Harker Center pool, which stays open daily and without a lifeguard through the summer, narrows its hours for the stretch from Labor Day, September 2, through September 13, 2026, a schedule that's held for years and isn't tied to any highway timeline. It's a small, dependable marker of the season turning, unaffected by whatever's happening at the SH-75 intersection a few minutes away.
The same is true of Charley French's training schedule. French, an Elkhorn resident about to turn 100, has trained with coach Bill Nurge at HardCore Training Center in Ketchum twice a week, every Tuesday and Saturday, for most of the four decades since Nurge first met him in 1988. Recently French went for two 100-meter world records on the rowing machine and the ski erg, the kind of milestone that would be a headline anywhere, and by his own account it wasn't something he was chasing so much as something his longtime coach and friend wanted him to try. That's the other version of Elkhorn's calendar: unglamorous, consistent, running on its own clock regardless of what's happening at the highway department.
The Actual Takeaway
The road construction and the neighborhood's steadier rhythms aren't really separate stories. They're the same point from two directions. If you're planning around Elkhorn Road right now, plan around the fact that "reopened" describes one half of an intersection, not the whole project, and that a Serenade Lane closure is still somewhere on the calendar between now and late fall. If you're planning around anything else here, from pool hours to a training partner's Tuesday session, the neighborhood's own patterns are about as reliable as they've ever been. Knowing which parts of Elkhorn are still in motion and which ones aren't is the difference between being surprised by the next closure and just working around it.
If you're an Elkhorn owner weighing how this stretch of construction affects showing a property or timing a listing, or you're simply trying to get a straight read on what's changing in the neighborhood before you decide anything, Dawn Sabo offers a complimentary market consultation and home valuation grounded in what's actually happening on the ground here, not a generic market snapshot.
