From Navy Wildcat to traffic helicopters: the story of Linden Airport

Studied closely, the gritty borders of U.S. Route 1 have a litany of stories to tell, their inspirations lost to progress or the wrecking ball. Like the phragmites reedgrass that grows so well in disturbed soil, the presence of a new strip mall is often a good indicator of something notable that's been replaced.

That, at least, is the case on one stretch of road in Linden. On the western side of Route 1, you'll see a large, fenced-off field; the only indication of the enormity of its previous use is the presence of big mounds of milled rubble. Across several lanes of traffic is a big-box mall and multiplex cinema of recent vintage; tall signs declare it to be Aviation Plaza.

In true 'blink and you'll miss it' fashion, you might notice one of those small square road signs with an airplane on it, the international designation for an airport, with the word "Linden" below it. And a little farther down, on the eastern side of the road, you might see a larger, but still modest sign saying "Linden Airport" at a nondescript intersection. What's an airport doing here, just a few miles down Route 1 from Newark Liberty International Airport?

Linden Airport seen from overhead. The large parking lot
and big-box mall at right were built after 1998,
replacing additional runways and older hangars.

The airfield and the empty field, as it turns out, share a common history. Between 1937 and 2005, that massive lot was home to a General Motors assembly plant where thousands of workers manufactured vehicles under just about every GM nameplate, from Cadillacs to pickup trucks and SUVs. Soon after the bombing of Pearl Harbor, however, the company's sights took to the air, bringing Linden along with it.

In early 1942, GM created the Eastern Aircraft Corporation to take over the production of the Grumman Wildcat fighters for the U.S. Navy. The Linden plant was retooled to produce planes and an airport was quickly built across the highway as a testing and commissioning field. More than 3500 planes rolled off the production line and took to the skies from Linden, built with pride by hundreds of local men and women.

Following the war, GM's Linden Assembly plant resumed production of civilian vehicles and its airport found new life. The Federal government deeded the property to the City of Linden under the condition that it continue operation as an airfield, ready for recommissioning for military use in the event of future war. Since then, advances in defensive technology make that possibility highly unlikely, but as the airport's website notes, "back then it was considered a vital part of our military's strategic industrial reserve plan."

As Newark Airport grew as a regional hub and gained international status, the Linden field became a reliable landing spot for smaller commercial traffic that would ordinarily be dwarfed by passenger and freight jets. Though it lacks a radio tower of its own, New York radio and television news stations continue to count on the now-dubbed KLDJ as home for their traffic helicopters, and hobby pilots can use it as an alternative that's almost as close to Manhattan as Teterboro. The field even hosts occasional events like the Red Bull Air Race, held there in 2010.

For historians, however, ghosts of the World War II era field are virtually impossible to find. Present day Linden Airport bears little resemblance to the World War II-era test field, with only one original landing strip still in existence. The old hangars at the north end of the airfield were torn down in 1998 and replaced by newer structures tucked out of sight from Route 1. The rest of the property is now taken up by the Aviation Plaza shopping center and multiplex theater.

On the positive side, LDJ has fared much better than many of New Jersey's other airfields-turned-retail locations. Unlike South Plainfield's old Hadley Field, aviators can set down at Linden, do some last-minute holiday shopping and quickly return to the skies. It seems that the ratable-seeking Linden city government may have found the best of both worlds: maintaining its original commitment to keep the field operational for perpetuity while increasing the tax base.

Hawks -- and others -- rise above Linden

Parks in highly-developed areas can be a bit of a roulette game from a birding perspective. Depending on the site's location and size, you could find something as profound as a pair of nesting eagles (as in Ridgefield Park's Overpeck Park, hard by I-80 and the Overpeck Creek), or as mundane as grackles (multiple places I'll not name to protect the innocent). I wasn't sure quite what we'd find when I suggested we check out the newly-opened, 95-acre Hawk Rise Sanctuary in Linden this past Saturday.

To the average person, Hawk Rise's location might not sound all that promising, stuck on the broad strip of land between Route 1 and the Turnpike, amid warehouses, a tank farm and a recently-capped city landfill. Then again, that description isn't much different from the way many people would characterize the Meadowlands, and we know how vibrantly alive with wildlife that region is. Plus, New Jersey Audubon was actively involved in developing the sanctuary with the City of Linden. I felt pretty confident that the trip would bear at least some good sightings.

The path from the parking lot leads you through woods.

Signs at the park's Range Road entrance mark out the course of a wide 1.25-mile gravel and plank trail that brings visitors through a variety of habitats. While the landfill is off limits, you can see it at the eastern edge of the preserve, covered with grasses and the occasional shrub. We began our trek through the wooded area just as police at the nearby shooting range started practice. Between that and the sound of barking from the adjacent animal shelter, it was hard to imagine that we'd soon hear the chatter of more than 30 species of birds.

That, however, is exactly what happened. The farther we walked in, the more the outside noise faded away,  replaced by the sounds of nature. By the time we made our way through the woods to the edge of the landfill (Mount Linden?) Ivan was recording names of birds he'd heard but not spotted, which I've never seen him do.

Marsh with capped landfill in the distance.

The trail straightens out once you get to the landfill, so the mound is to your left and a healthy wetland is to your right. As we walked along, we caught the song of the oft-heard-but-rarely-seen marsh wren, along with the call of the ubiquitous red-winged blackbird. A willow flycatcher stood atop one of the marsh reeds, occasionally adding his voice to the chorus.

Looking up and tracking, with binoculars to eyes, Ivan called, "Osprey!" Not unexpected, considering how close we were to water, but a nice find.

I heard something else rapidly approaching us overhead. "L-10-11," I called, checking out the recent take-off from Newark Liberty. We never quite forgot we were within ten miles of the airport, but the jet noise stayed well within acceptable limits.

The trail ends in a cul-de-sac boardwalk about twenty feet or so from the edge of the Rahway River, and while you can see houses and a little bit of industry at the far side, there's plenty of nature to observe. A killdeer picked through the mudflat a few feet ahead of us, and a snowy egret was doing some morning fishing in some shallower water farther away.

The eagle was just on the other side of the river. I swear.

The real surprise of the day was perched beyond the egret, at the far bank of the river. From the size and coloration of the bird, there was no question: it was an adult bald eagle, looking very comfortable in his (or her) environs. The majestic bird stood there patiently, giving us a nice side view and leaving only as a small motorboat approached. Even then, it didn't go for altitude, simply gliding a few feet above the water for as far as we could track it. Given that eagles tend to avoid human activity, it was kind of surprising to note that when we sighted it, the bird appeared to be just a few hundred feet away from the edge of a residential neighborhood. We hadn't heard anything about a nesting pair in the vicinity, but I guess anything's possible.

Our walk back through the woods netted us a few more species, including Baltimore oriole, indigo bunting and a heard-but-not-seen red-bellied woodpecker. Oddly, we didn't see a single Canada goose on the landfill or near the river. Could we have found the one place in Union County they haven't discovered?

Even considering all our great finds, I think I was most heartened by the potential for Hawk Rise to make so many more people aware of what's living -- and what's possible -- in our most industrial settings. Audubon will be running a series of events there, and the organization is working with Linden schools to include the sanctuary in the local science curriculum. We need more stuff like this in New Jersey.