"At nearly 1,200 feet, the bridge completes a vital 5-mile corridor through the heart of our City," Mayor Larry Agran said on August 11, when the City of Irvine opened the Jeffrey Open Space Trail Bicycle & Pedestrian Bridge.
The bridge is real and it is impressive. "Completes" is the word that runs ahead of the trail. North of the new span, the path still stops at Portola Parkway. South of it, two city pages describe the endpoint in two different ways. In the middle, the link meant to carry Irvine's trail system toward the coast without crossing traffic depends on a proposal still under environmental review. The Jeffrey Open Space Trail has always been built one crossing at a time. August added the largest crossing yet, and the ones still missing are each waiting on something different.
The trail has always grown one bridge at a time
The trail took decades to reach its current shape. Its grade-separated crossings arrived years apart, each one letting trail users cross over a road or freeway instead of meeting traffic at street level. Irvine Standard's September 2 report on the opening includes a short timeline:
- 2003: The I-405 overcrossing at Quail Hill spans the freeway near Jeffrey Road and links to Quail Hill Open Space.
- 2015: The original Jeffrey Open Space Trail opens as a 3.5-mile path with grade-separated crossings over Irvine Boulevard, Trabuco Road and Bryan Avenue.
- August 2026: The I-5 bridge opens over the freeway, the Jeffrey Road Park & Ride and Walnut Avenue.
- Under construction: A bicycle and pedestrian bridge over Portola Parkway at Jeffrey Road.
- Proposed: Bridges over the railroad tracks and Irvine Center Drive, both part of a pending Oak Creek application.
Traci Maynard, an assistant cross-country coach at Beckman High School and founder of the Flying Eagles OC youth running club, told Irvine Standard why that order matters: "Signals are very dangerous, especially those right turners." She brought her young athletes to the opening and said the club had always run north on the trail. "Now we can go south because of this new bridge."
What August actually added
The span is about 1,200 feet long and 15 feet wide. The city calls it the largest pedestrian and bicycle bridge in Irvine. It has 2,400 linear feet of steel truss railing and 40 custom decorative steel light poles. The project page says the lighting is designed to make the bridge usable at night as well as during the day. Oak Creek resident Jay Sato told Irvine Standard he "can't wait to ride it at night when the bridge lights are on."
The money came from two sources: $14.5 million in state funding, secured by U.S. Representative Dave Min while he was a State Senator, and $5,056,000 from Caltrans.
The bridge also opened later than first expected. Work began in March 2024. In April 2025, Voice of OC reported that the project was expected to be finished in March 2026. It opened five months after that. That gap is useful to remember when reading the dates given for the next links.
Gap one: the north end stops at Portola
North of the I-5, the 2015 trail is the finished part of the system. The history panels and mosaics begin with early Native American villages and continue through California statehood. The upright wooden beams near the pavilion once held up the floor of the Irvine Valencia Growers Packing House, built in 1929. The stone-and-timber restrooms are styled after national park buildings. Irvine Standard's June walk-through suggests parking at Cypress Community Park on Visions.
At Portola Parkway, the trail ends. Construction has started on a dedicated bridge over Portola at Jeffrey Road that will carry the trail into Gateway Open Space Preserve and its 20,000 acres of protected foothills, including Limestone, Fremont and Black Star canyons. In early September, Irvine Standard put the work at "the next 18 months." Counted from that report, that points to roughly spring 2028. No official completion date has been published. The city's October 2026 capital project report adds that Jeffrey Road north of Portola Parkway is closed to public access during Irvine Company's road extension work, and it gives no completion date.
That makes the northern gap the simplest of the three. It is a construction project with a crew on site and an estimated timeline.
Gap two: the south end, described two ways
South of the bridge, the city's own wording does not agree.
"The trail has been extended from Walnut to Smoke Tree and will eventually reach Barranca Parkway."
That line comes from the City of Irvine's August 11 opening release. The JOST Extension project page says the "JOST Extension (Barranca to Walnut) project completed" a Class I bicycle and pedestrian facility. The July 30 announcement before the opening described the project as a bridge plus "a new trail segment stretching from Barranca Parkway to Walnut Avenue."
Read together, the pages agree that Barranca is where the extension is meant to end. They disagree on whether the paved path reaches it yet. The release dated opening day is the one that says "eventually." Until the city publishes a clearer map, the honest description of the southern end is "Smoke Tree, with Barranca planned."
There is a short-term issue here too. The October capital project report says Southern California Edison utility work near Jeffrey Road and Walnut Avenue may close parts of Jeffrey Road and Walnut Trail at times on weekdays between 9 a.m. and 3 p.m. The city recommends alternate routes during that work, which it expects to finish in fall 2026.
Gap three: the middle runs through a golf course application
The largest gap is not a construction job at all. Between the southern extension and the 2003 overcrossing into Quail Hill, the route that would keep trail users separated from traffic depends on what happens to the Oak Creek Golf Course.
| Gap | Location | What it is waiting on | Published timing |
|---|---|---|---|
| North | Portola Parkway at Jeffrey Road | A bridge already under construction | About 18 months from early September 2026, per Irvine Standard |
| South | Smoke Tree to Barranca Parkway | Clarity on whether it is finished; city pages disagree | None published |
| Middle | Oak Creek, over the railroad and Irvine Center Drive | Review of a development application and an environmental impact report | None; no project approved |
The City of Irvine's Oak Park page describes an Irvine Company application covering about 281 acres. The area is bounded roughly by Jeffrey Road, the I-5, Valley Oak and Oak Canyon, and Irvine Center Drive, and the OCTA/Metrolink tracks run through it. The proposal would redevelop the golf course, the Oak Creek Business Center and nearby vacant land into a new village of up to 2,400 homes. It would also include a public nature park and trail system that connects to the Jeffrey Open Space Trail, with bicycle and pedestrian bridges over the railroad tracks and Irvine Center Drive. In its June coverage, Irvine Standard described the planned nature park as more than 50 acres of trails, gardens and meadows, along with improvements to Walnut Trail.
As of the city's project page, here is where things stand:
- On April 14, 2026, the City Council approved a zoning text amendment, and on April 28 it adopted it as Ordinance No. 26-07. The amendment creates an optional process for considering a public nature park and trail system on part of the golf course instead of the existing public golf course requirement. It approves no specific project and does not change the site's General Plan or zoning designations.
- The General Plan amendment, zone change and development agreement are still under review.
- The city is preparing a Subsequent Environmental Impact Report. It issued a Notice of Preparation on July 6, 2026, and held a public scoping meeting on July 20, 2026.
The bridges that would finish the middle of the trail are part of that application, so they move on its schedule. The city lists Senior Planner Eric Martin as the contact for meeting and outreach updates, at [email protected].
What the trail is today
For anyone heading out this weekend, the trail now runs from just south of Portola Parkway, over the I-5 on the new bridge, and onto the southern extension. That is more continuous path than Irvine has ever had along Jeffrey Road. Cheryl Evans, a former Woodbridge High School cross-country coach, told Irvine Standard she had waited "25 or 30 years" for a safe freeway crossing, because distance runners "need a good, safe 10 miles or so." She also praised the dual dirt-and-concrete running surfaces, the flat ground and the mature shade trees.
The 2015 section between Portola and the I-5 is still where the trail feels finished, with its tunnels, restrooms and history panels. The new bridge is the right place for an evening ride, since it was lit for exactly that. South of the bridge, check the weekday utility closures before planning a midday run, and expect the path to change as Barranca, Portola and Oak Creek each move forward on their own schedules.
At Jin Hong Team, we follow how projects like the Portola bridge and the Oak Creek review change the way Irvine's villages connect. If you live near the trail and would like to know how those links might affect your own home, we're glad to start with a free home valuation and a clear, no-pressure conversation.
