If you drive the northwest side, you have felt the Tangerine squeeze: cones, lane shifts, and a years-long rebuild of one of the metro's main east–west connectors. The end is finally in sight. Tangerine Road is being widened from two lanes to four across roughly 10 miles between Interstate 10 in Marana and La Cañada Drive in Oro Valley, and the Town of Marana expects the current phase to finish in fall 2026. Before it does, a rebuilt I-10 interchange is going to keep parts of the corridor torn up through the summer and into 2027. Here is the June 23, 2026 New Development read on what's actually being built. ~10 mi — Corridor rebuilt, I-10 in Marana to La Cañada in Oro Valley. 2 → 4 — Travel lanes after the widening. 12 ft — Width of the new multi-use path along the route. Fall 2026 — Target finish for the current Phase 2A What Tangerine Road Is Becoming The Tangerine Road Corridor Project is one of the marquee items in the Regional Transportation Authority plan Pima County voters approved in 2006. The headline change is capacity — widening the road from two lanes to four — but the rebuild is more than extra asphalt. Plans call for a raised median, upgraded drainage to handle monsoon flows, dedicated turn lanes at the major intersections, and a 12-foot-wide multi-use path for walking and cycling running alongside the road. At the western end, the I-10 interchange itself is being reconstructed with new ramp alignments and its own walking and bike connections, knitting the freeway crossing into the path network rather than leaving it as a gap. Where Things Stand in June 2026 The corridor is being built from east to west in phases. The eastern stretch, from La Cañada Drive toward Twin Peaks Road, was finished in an earlier phase. The current western phase — Phase 2A — runs from the I-10 interchange east past the Tangerine Business Loop, has taken roughly two years, and is expected to wrap in fall 2026, according to the Town of Marana and the RTA. That isn't the last word on Tangerine, though: design work is already underway on the third and final phase, which would carry the improvements from Marana Tech Drive out to Dove Mountain, the master-planned area where much of Marana's newer housing is concentrated. Phase 1 (East) — Done (La Cañada to Twin Peaks, Four lanes, Completed): The eastern segment toward Oro Valley was widened and reopened in an earlier phase, setting the four-lane, median-and-path template the rest of the corridor is following. Phase 2A (West) — Underway (I-10 to Tangerine Business Loop, ~2 years, Wrapping fall 2026): The current work, including the full rebuild of the I-10/Tangerine interchange. This is the stretch causing the summer 2026 ramp closures, and the one on track to finish this fall. Final Phase — In Design (Marana Tech Drive to Dove Mountain, Design phase, Not yet built): The last segment would extend the corridor northwest toward Dove Mountain. Design is in progress; a construction start date has not been announced. The I-10 Interchange Is the Messy Part Right Now If you use the I-10 ramps at Tangerine, plan around the rebuild. According to the Town of Marana, a roughly two-week closure of the eastbound off-ramp began May 18, 2026 to rework the eastbound ramp and intersection. A bigger one followed: a westbound off-ramp closure that started in June and is expected to last through March 2027. Also starting in June 2026, crews are working on the Tangerine underpass abutment lanes in both directions, with that work also targeted for completion by March 2027. Still to come is a full closure of the Tangerine railroad crossing for about eight weeks to rebuild it — the schedule for that one had not been finalized as of late June, so it's the closure to watch for. Dates and detours shift on projects like this, so confirm the current status with the Town of Marana before you travel. What It Means If You Live — or Are Buying — Nearby A widened Tangerine Road shortens the practical distance between I-10, the employment and retail along the corridor, and the housing in Marana and Oro Valley that feeds onto it — and the new multi-use path adds a continuous walking-and-cycling spine the area didn't have. For context on the market it serves, Zillow's typical home value was about $429,000 in Marana and about $494,000 in Oro Valley in mid-2026, with Oro Valley values up roughly 1.9% over the prior year; Redfin pegged median sale prices in the same window near $429,000 in Marana and $500,000 in Oro Valley. The Dove Mountain area at the corridor's far end is among the region's most active for new construction. None of this is investment advice — corridor projects can cut both ways, easing commutes once finished while bringing noise and detours during construction — but the long-term direction here is more capacity and better connections on a route a lot of northwest-side buyers care about. Quick reference (June 23, 2026): The Tangerine Road Corridor Project is widening ~10 miles from two lanes to four between I-10 in Marana and La Cañada Drive in Oro Valley, adding a raised median, drainage, turn lanes, and a 12-foot multi-use path, plus a rebuilt I-10 interchange. The current Phase 2A (I-10 to the Tangerine Business Loop) is expected to finish in fall 2026; the final Marana Tech Drive–to–Dove Mountain phase is in design. Active closures per the Town of Marana: a westbound I-10 off-ramp closure (started June, through about March 2027) and underpass abutment work both directions (June 2026–March 2027), with a roughly eight-week railroad-crossing closure still to be scheduled. Confirm details at maranaaz.gov before you travel. The Takeaway Tangerine Road has been a construction zone long enough that it's easy to forget what it's turning into: a four-lane, median-divided corridor with a continuous path, tying I-10 to Oro Valley and, eventually, out to Dove Mountain. The current phase finishing this fall is the big milestone, even if the I-10 interchange keeps drivers detouring well into 2027. For anyone living, commuting, or house-hunting on the northwest side, it's worth knowing both halves of the story — the short-term squeeze and the longer-term payoff of a faster, better-connected route. Sources Regional Transportation Authority of Pima County — "Work continues on west end of Tangerine Road project to upgrade 10-mile corridor improvement" and "RTA Roadway Corridors" — rtamobility.com/get-involved/news/work-continues-on-west-end-of-tangerine-road-project-to-upgrade-10-mile-corridor-improvement and rtamobility.com/projects/corridors — accessed June 23, 2026 (for the roughly 10-mile corridor from I-10 in Marana to La Cañada Drive in Oro Valley, the fall 2026 completion target for the current phase, and the third and final phase from Marana Tech Drive to Dove Mountain now in design). KOLD News 13 — "Phase 2A of the Tangerine Road improvement project is underway" — kold.com/2024/07/09/phase-2a-tangerine-road-improvement-project-is-underway — accessed June 23, 2026 (for the widening from two lanes to four, the raised median, improved drainage, the 12-foot-wide multi-use path, the new I-10/Tangerine interchange with walking and bike paths, and the roughly two-year Phase 2A timeline). Town of Marana — "Tangerine Road and Interchange Improvements" and 2026 traffic alerts for the Tangerine Road I-10 eastbound and westbound off-ramp and underpass work — maranaaz.gov/Departments/Public-Works/Traffic-Alerts/Tangerine-Road-and-Interchange-Improvements — accessed June 23, 2026 (for the eastbound off-ramp closure beginning May 18, 2026, the westbound off-ramp closure starting in June and expected to last through March 2027, the underpass abutment lane work in both directions from June 2026 through March 2027, and the planned roughly eight-week full closure of the Tangerine railroad crossing on a date not yet finalized). Federal Highway Administration — "Project Profile: Tangerine Road Corridor Project" — fhwa.dot.gov/ipd/project_profiles/az_tangerine_road_corridor.aspx — accessed June 23, 2026 (for the corridor's endpoints and its place within the voter-approved Regional Transportation Authority plan). Zillow — "Marana, AZ Housing Market" and "Oro Valley, AZ Housing Market" — zillow.com/home-values/56207/marana-az and zillow.com/home-values/26329/oro-valley-az — accessed June 23, 2026 (for typical home values of about $429,000 in Marana and about $494,000 in Oro Valley, up roughly 1.9% year over year, in mid-2026). Redfin — "Marana Housing Market" and "Oro Valley Housing Market" — redfin.com/city/11772/AZ/Marana/housing-market and redfin.com/city/14237/AZ/Oro-Valley/housing-market — accessed June 23, 2026 (for median sale prices near $429,000 in Marana and $500,000 in Oro Valley in spring 2026). All figures are current as of June 23, 2026; construction schedules, closures, and home values change, so confirm current numbers before relying on any single figure. This post is for informational purposes only and is not an offer to sell or a solicitation of an offer to purchase real estate. Kyle Berglund and Tierra Antigua Realty fully support and comply with the Fair Housing Act and the Equal Opportunity Act.