Blue Fountain Diner — that specific business (and the building it occupied) is permanently gone.

Here’s the full updated timeline as of November 18, 2025:

• The restaurant at 2029 E Lincoln Highway in Langhorne/Middletown Township, PA, operated as the Blue Fountain Diner for decades until 2017.
• In 2017 it was sold, renovated, and rebranded as the Langhorne Speedway Diner (a nod to the historic Langhorne Speedway racetrack).

• The Langhorne Speedway Diner continued operating until late 2024, when the property was sold for redevelopment.
• Demolition of the diner building began in November 2024.
• The site has been completely cleared and rebuilt as a brand-new Panda Express (American-Chinese fast-food chain with a drive-thru). The Panda Express location is either just opening this week or has very recently opened (local reports point to a grand opening around mid-to-late November 2025).

In short: the Blue Fountain Diner closed/rebranded years ago, the successor diner closed and was demolished in 2024–2025, and the address is now a Panda Express. 

The Complete Business History of 2029 E Lincoln Highway, Langhorne (Middletown Township), PA

The address 2029 E Lincoln Highway (also known as Business U.S. Route 1) in the Langhorne/Middletown Township area of Bucks County, Pennsylvania, has been a commercial site for decades. It sits on a busy corridor near Woodbourne Road, sandwiched between car dealerships, banks, and other retail. For the vast majority of its modern history, the ~1.6-acre lot was home to a single, iconic diner building — a classic mid-century roadside eatery that served as a 24/7 (or near-24/7) gathering spot for locals, travelers, truckers, and families.

The current building on the site dates to 1967, when the diner structure was constructed. There is no publicly documented evidence of any significantly different business operating there prior to that year (no earlier restaurants, gas stations, motels, or other uses appear in historical records, local news archives, or property listings). The site appears to have been purpose-built or quickly adapted as a diner shortly after construction.

Here’s the full timeline of businesses known to have occupied the address:

1. Blue Fountain Diner (1960s/1970s? – 2017)

• The longest-running occupant, operating under this name for decades (exact opening date is unclear but likely shortly after the 1967 building construction; some references treat it as a fixture since at least the 1980s).
• A classic American/Greek family diner with chrome accents, a curved facade, extensive booths, and a massive menu featuring breakfast all day, homemade soups, baked goods, Greek specialties, burgers, and daily specials.
• Known for being open 24 hours on weekends (and often weekdays), affordable prices, and a loyal local following. It was a true roadside institution along the old Lincoln Highway corridor.
• The diner had a distinctive retro sign and exterior that screamed mid-20th-century Americana.
• Ownership changed hands multiple times, but it retained the “Blue Fountain” name and general style until the final sale.
• Closed for renovation/rebranding in early 2017.

2. Langhorne Speedway Diner (June 2017 – late 2024)

• After a sale to new owners (including involvement from MTS Restaurants LLC or related entities), the diner underwent renovations and reopened on June 1, 2017, with a new name honoring the historic Langhorne Speedway — a famous (and dangerous) open-wheel racetrack that operated nearby from 1926 to 1971, nicknamed the “Big Left Turn” and host to IndyCar and NASCAR events.
• The rebrand included updated decor with racing memorabilia, an expanded menu, and slightly modernized operations while keeping the core diner vibe.
• It remained popular but faced the same challenges as many independent diners: rising costs, changing dining habits, and prime real estate value.
• Continued operating until the property was sold for redevelopment in 2024. The final months saw it wind down before closure.

Interim Period (late 2024 – mid-2025)

• The old 1967 diner building was fully demolished starting in November 2024 to clear the site.
• No business operated during this time; the lot was cleared, graded, and prepared for new construction (including improved parking, stormwater management, and a new sidewalk along Lincoln Highway).

3. Panda Express (grand opening ~November 2025 – present)

• Plans were approved by Middletown Township in 2022 to replace the diner with a 2,540-square-foot Panda Express featuring a drive-thru — the chain’s second Bucks County location.
• Construction of the new building began after demolition and wrapped up in 2025.
• As of November 18, 2025, the restaurant held (or is holding) its grand opening this week (reports point to mid-to-late November 2025).
• Panda Express specializes in American-style Chinese fast-casual food (orange chicken, Beijing beef, fried rice, etc.) and marks a shift from a sit-down, 24-hour family diner to modern quick-service with a drive-thru.

Summary & Context

• Total diner era: ~57 years (1967–2024) under two names, but essentially the same classic roadside diner concept.
• The transformation reflects broader trends in Bucks County: beloved independent diners giving way to national chains on high-traffic corridors as land values soar and development pressure increases.
• No evidence exists of any other distinct businesses (e.g., a pizza place, motel, or retail store) ever operating long-term at this exact address before the diner era. Brief or overlapping listings (like “Langhorne Pizza”) in some directories appear to be data errors tied to the diner period.
• The site is now fully modernized — goodbye chrome and neon, hello red lanterns and drive-thru lanes.

If you’re a nostalgia fan, the old diner’s photos and memories live on through sites like SKYWAYDINER.COM