SPRR Yuma District - The East Line

SEGMENT 2: APEX to INDIO, MP 563.3 - 611.0

03/15/91

 

Introduction

 

  The upcoming 48 miles take the Yuma Line from the top of Beaumont Hill (the saddle of San Gorgonio Pass) at more than 2600 feet elevation, down the eastward side of the pass and finally out on to the gently sloping, sandy alluvial fan that makes up the floor of the Coachella Valley.  Immediately west of Indio, the right-of-way crosses the sea level contour and the Espee becomes the only railroad in the United States to operate below sea level (not counting a rail tunnel or two under bays or estuaries).  At Indio Station, the tracks are 20 feet below sea level and sinking steadily, making for a total elevation change over the 48-mile route of more than 2600 feet.

 

 

  Along this stretch of railroad, the climate changes much more significantly than the modest altitude change might imply.  While weather in Beaumont may be cool, cloudy or downright cold and windy, the hour's trip downhill to Indio can bring 30 degree-warmer temperatures, sandstorm winds or clear-blue skies. 

 

During winter or summer, the climatological differences that you will experience between Beaumont and Indio can be surprising.

  The primary reason for the meteorological diversity is the unusual geology presented by the narrow gap between the highest groups of peaks in Southern California, the San Gorgonio Range on the north and the San Jacinto Mountains to the south.  These peaks, raised up over the past twenty million years or so, have created a formidable barrier between the moderating influences of the Pacific Ocean and the great expanse of the Mojave and Colorado Deserts to the east. 

 

 

563.3 APEX Switch (RIV151D6)

      EB/WB Absolute Signals

      End Two Main Track CTC

      Begin Single Main Track CTC

      Signpost EB 50-40 MPH

      Speed Limit: EB 50-40 MPH; WB 50-40 MPH

      Speed Limit through switch to #2 Track: 25 MPH

  To the east there is single track mainline with occasional sidings all the way to Indio, at MP 609.7.  Westbound, the double-track mainline continues all the way to West Colton, about 25 miles.  The name "Apex" refers to the fact that this is more or less the top of Beaumont Hill, although the actual summit appears to be about 0.5 miles west.

  The Espee Timetable indicates that Apex is at MP563.2; the actual switchpoints are at 563.3.

  The north side access road is passable to the east and west.

 

563.5 Potrero Creek Culvert

  Potrero Creek heads on the plain north of Beaumont and makes its way south through the western end of North Mountain, the low ridge visible immediately south.  The creek passes through picturesquely-named Massacre Canyon, finally connecting to the San Jacinto River just northwest of Gilman Hot Springs, about 6 miles south.

  Note that the bridge abutments are built of old railroad boxcar doors.  Use what's available...  The north side of the tracks remains passable while the south side ends with a precipitous fall.

 

 

563.9 Leave County Lands: Enter Beaumont city limits (again!) (RIV151E6)

 

564.0 2570' AMSL; -0.8% EB

 

564.1 Highland Springs Underpass

      Block Signals: EB 5642 - WB 5641

      Leave Beaumont: Enter Banning city limits

  Before September 1989, this was just a nice, simple country grade crossing with a little two-lane road.  But then they built the housing development and shopping center on the south side of the track.  So the underpass was completed in the summer of 1990.  The north path along the right-of-way remains passable all the way to Sunset Avenue.

 

564.3 Dragging Equipment / Hot Box DETECTOR (RIV151F6)

  Right along in here is the actual dividing point between drainage that is destined for the Pacific Ocean and the drainage that will meet its fate in the Salton Sink.

 

565.0 West Switch PERSHING Siding (RIV151F6)

      EB/WB Absolute Signals

      Siding Length 6498'

      2530' AMSL; -0.7% EB

  A low, tan municipal water tank is just south and to the west; the south path along the right-of-way ends in a deep gulley.  The north side path passes across the gulley floor.

 

565.3 Signpost WB 50-40 MPH (main track) (RIV152A6)

      Signpost WB 25 MPH (siding)

 

565.4 Smith Creek Culvert

  Smith Creek has etched a deep gulley which the railroad crosses by means of a high fill.  The north trackside road is passable by 2WD but right in the bottom of the wash itself there is a patch of soft, moist gravel with which to contend.  (Generally, the gravel hasn't been too much of a problem in the past few times that I've driven across).

  Smith Creek drains the west end of the Banning Bench, a shelf-like ledge just north of Banning, and is also the westernmost named creek in the Pass to flow east into the Salton Sink.

 

565.5 PERSHING Station

      Deep Gulley with Culvert

 

566.0 2495' AMSL; -1.3% EB

 

566.3 Sunset Avenue Grade Crossing (RIV152B6)

  The north path along the right-of-way remains passable all the way to 22nd Street.  In Summer 1989 an active road-widening project was underway with the grade crossing included.

 

566.5 East Switch PERSHING Siding (RIV152C6)

      EB/WB Absolute Signals

 

566.8 22nd Street Grade Crossing

  To the east there is access along both the north and south side of the rails all the way to San Gorgonio Avenue.

 

567.0 Montgomery Creek Culvert (RIV152D6)

      2425' AMSL; -1.6% EB

  Montgomery Creek, another drainage from the Banning Bench, flows south and east to join with the San Gorgonio River.

 

567.6 West Switch BANNING Siding (RIV152E6)

      EB/WB Absolute Signals

      Siding Length 6202'

 

567.8 8th Street (State Route 243) Underpass

  SR 243 leads south up into the San Jacinto Mountains to Idyllwild, a mere 26 miles south, heart of the San Jacintos and an alpine interlude at just over a mile above sea level.

  The access road along the north side of the tracks also passes over on the railroad bridge, so that maintenance crews don't need to exit from the right-of-way to move along the rails.

 

568.0 2340' AMSL; -1.5% EB

 

568.2 BANNING Station

  Banning Station, back in the distant past, stretched from here to about MP568.5.  It was located along the north side of the tracks and fronted on Bryant Avenue.

 

568.3 San Gorgonio Avenue Grade Crossing (RIV152F6)

  For a spectacular view of the whole San Gorgonio Pass, travel south on San Gorgonio Avenue and climb up the scarp of the San Jacinto Mountains directly south.  In just a few miles you'll have a bird's eye view of Banning.  Bring a telephoto lens and telescope and watch trains.

 

568.8 Hargrave Street Grade Crossing

  A good dirt path leading east is available along the north side of the tracks; John Street provides access along the south side of the tracks.

 

568.9 East Switch BANNING Siding (RIV153A6)

      EB/WB Absolute Signals

 

569.0 2250' AMSL; -1.7% EB

 

569.3 Entrance to Banning Airport

  Banning Airport is along south side of tracks here; John Street turns into Kelso Street at the jog and continues just shy of due east along the northern perimeter of the airport.

 

569.4 A Couple of Nasty Gullies (RIV153B6)

  There is a couple of nasty but passable little gullies along the path on the north side of the tracks.  There are also many cobbles and larger rocks.  Drive with caution.

 

569.6 Begin Paved Road

  This road is the half-buried remains of the eastern extension of Ramsey Street in Banning and is the old US Route 60 that predates the Interstate; now the north (westbound) lanes of the old road serve as sub-foundation for I10.

 

570.0 Dragging Equipment DETECTOR (RIV153C6)

      Block Signals: EB 5700 - WB 5701

      2160' AMSL; -1.7% EB

  In October 1989 the normally female voice of this talking detector slowed down to about half-speed, sounding more like someone on Quaaludes.

 

570.6 Path Narrows for Next 0.2 Miles

      Truck Scales on Interstate 10

 

571.0 210' Wood Bridge over the San Gorgonio River (RIV153D6)

      2070' AMSL; -1.8% EB

  The railroad passes over the San Gorgonio River wash; the river is usually dry on the surface except after a summer thunderstorm or when there is spring runoff.  The San Gorgonio River is formed by the drainage off the south faces of Little San Gorgonio Mountain and Galena Peak (9330'), flowing down through massive and impressive Banning Canyon about 5 miles northwest.

  Mount San Gorgonio, the highest peak in Southern California at 11,503', is due north.  It is the top of the long gray ridge in the background, above and behind the nearer Little San Gorgonio Ridge.  In fact, the whole gray San Gorgonio mountain ridge is also known as "Old Grayback", or as "that big ol' mountain over there".

 

571.1 West Switch CABAZON Siding

      EB/WB Absolute Signals

      Siding Length 16217'

      Speed Limit through switch to siding: 20 MPH

  The rails pass over a smaller wash.  Fields Avenue is the nearby offramp from the Interstate.

  East to about MP579.4 access to the tracks is available along the paved path of old Route 60.  The path will narrow to single lane width but then at MP572.6 will widen to a full four lanes.

  According to the topographic map, this siding used to be called Owl; however, the name "Cabazon" shows up on maps as old as 1884.

 

571.3 Fields Road Offramp from I10 (RIV153E6)

      Leave Banning: Enter County Lands

  Fields Road provides both eastbound and westbound access to this section of the right-of-way from Interstate 10.  There are several whoops along the road here.  Drive carefully.

 

571.5 Old OWL Station

  Owl, a siding approximately 5900' long, appears on old timetables and maps.  Owl has been absorbed as the west end of Cabazon siding.

 

572.0 1975' AMSL; -1.9% EB


572.3 Path Narrows (RIV173F1)

  Exercise caution when driving along this single-lane section of the old highway.  Bicycles, pedestrians and very occasional auto traffic may be found here.  The eastbound I10 offramp for Apache Trail covers all but this narrow remainder of the old highway.

 

572.6 Apache Trail Grade Crossing

      Block Signals: EB 5726P - WB 5725

  Eastward signal 5726, sporting a "P" plate, also indicates the status of the barricade detector at MP574.3.

  Access to the tracks continues along the old highway along the north side; Main Street is the name of the four-lane paved road here though Cabazon.

 

573.0 1875' AMSL; -1.7% EB

 

573.7 Site of Old Water Tank (RIV174A1)

  The tank along the north side of the siding was used back in the "old" days before diesels came along. Twelve massive concrete feet are all that remain, across from 50044 Main Street.

 

574.0 Broadway Grade Crossing (RIV174B2)

      West-facing 6345 Spur

      East-facing 6340 Spur

      Community of Cabazon

      1785' AMSL; -1.6% EB

  Spur 6345 comes off the main, south track, crosses Broadway and ends about two hundred yards east.  Spur 6340 is located along the north siding track, just west of the grade crossing and continuing west for a hundred yards or so.

 

574.1 CABAZON Station

  There is a section shanty south of the 6345 spur.  According to a 1954 timetable, Cabazon had a north siding 122 carlengths (approximately 6200') long and a 125-car (6300') south siding.

 

574.2 Railroad Avenue / Main Street Intersection

      Site of Old Water Tank

      Big Lizards

  The Cabazon Offramp from both eastbound and westbound Interstate 10 provides access to Main Street. North of the freeway are the big lizards: a fierce, omnivorous Tyrannosaurus Rex (or is it a Allosaurus?) and a lumbering, docile, herbivorous Brontosaurus which, by the way, has a little museum and gift store in its stomach (It's amazing what these dinosaurs will eat).  It's a good thing that these critters are extinct; think of the havoc they'd wreak on ten thousand tons of a westbound drag.

  Immediately south of the Main Street overpass, Railroad Street joins up and provides access east along the tracks.

  Notice the twelve concrete footings of yet another long-gone water tank along the north side of the tracks west of the intersection.

 

574.3 West Switch MONS Siding (RIV174C1)

      East Switch CABAZON Siding

      EB/WB Absolute Signals (WB Signals Carry "P" Plate)

      Barricade DETECTOR

      Mons Siding Length 17155'

  Mons Siding is the longest unbroken siding in the Yuma Sub.  Over three miles long between switchpoints, it helps to clear up congestion on the east side of the Beaumont Hill.

  This particular junction of these two sidings is called a "Lap Siding".  Since the two sidings overlap one another without joining, the sidings can be set up to hold a train that is much longer than the length of either Cabazon or Mons and still provide room for a passing train to get by.  More likely, though, the lap junction allows run-by meets for opposing traffic without incurring tremendous slowdowns.  All told, between the lap sidings here and the total length of the Mons/Fingal Sidings to the east, this provides nearly eight miles of "double" track in case of a really slow meet.

  Check out the long, single-railed wooden fence that runs for about 120' along the north side of the railroad right-of-way, immediately across from the freeway offramp.  That's a BARRICADE DETECTOR. If some out-of-control vehicle (a tractor and semi-trailer, I suspect) comes flying off the freeway with burned-out brakes, the vehicle might hit the barricade fence on its way to fouling the railroad tracks.  A single heavy wire is supported by the fence and acts as a long pull-chain for a switch at the east end of the fence.  The theory is that a truck will hit the fence, rip the wire out of the fence as the truck goes through, and the wire will tug on a switch that also controls the indications on the eastbound 5276P signal and the westward absolute signals right here.

  However, given the angle of the offramp, I think that there's a good possibility that the vehicle would miss the fence completely, passing just to the east and fouling the mainline without setting off the barricade detector.  You wait and see... (NOTE: as of October 1989, the detector had served its purpose; the east end, right at the control box, was creamed.)

 

574.6 Signpost EB 45-40 MPH

 

575.0 1700' AMSL; -1.7% EB

 

576.0 1615' AMSL; -1.9% EB

 

576.2 MONS Station (RIV174F1)

  According to that 1954 timetable, the old Mons siding could contain 116 cars.

 

576.5 MONS Crossovers

      East Switch MONS Siding

      West Switch FINGAL Siding

      EB/WB Absolute Signal Towers

      Colorado River Aqueduct Crossing

      Fingal Siding Length 11373'

  The Mons Crossovers serve as the ends of the individual Mons and Fingal sidings, each quite long by their own right.  However, through this crossover, the south siding track can be made more than five miles in length, allowing in-motion opposing and same-direction train meets to occur.

  Just west of the west end of the Mons Crossovers, the railroad passes over the Colorado River Aqueduct, built by the Southern California Metropolitan Water District (MWD) to bring Colorado River water from the Colorado River through the headgates at Parker Dam, about 160 miles east, to Los Angeles.  The aqueduct passes under the tracks from the northeast and heads about southwest, tunneling under the San Jacinto Mountains.

 

576.6 Signpost WB 50 MPH

      Speed Limit: EB 45-40 MPH; WB 50 MPH

 

577.0 1515' AMSL; -1.7% EB

 

577.9 Old Propeller Farm South of Tracks (RIV175C1)

  South of the tracks about a half-mile is an abandoned wind energy conversion farm, one of the dozen or so farms in the eastern San Gorgonio Pass.

 

578.0 1425' AMSL; -1.5% EB

 

578.6 FINGAL Station

      West-facing 6369 Spur

  The 150 yard-long spur is off the south side of the siding track.  Fingal used to be a mere siding of 5800' length.  Now it has been lengthened and absorbed into what is now a near-double track railroad all the way from MP571.1 to MP578.7, a total of 7.6 miles.

 

578.7 East Switch FINGAL Siding (RIV175D1)

      EB/WB Absolute Signals (EB Signals Carry "P" Plate)

  The eastbound signals carry the "P" plate, indicating that the signal will also display an indication due to the state of the high-water detector in the bridge at MP579.2.

 

579.0 1350' AMSL; -1.7% EB

 

 

579.2 Two Bridges over Stubbe Wash

  Stubbe Wash carries the outflow from Stubbe Canyon which heads on the southeast side of Kitching Peak, the lone alpine peak in the foreground just a bit west of due north.

  The Pacific Crest Trail, the hiking path that leads from the Mexican border to Canada, passes under the 100' concrete bridge carrying the railroad tracks over the east wash.  The path heads north up Whitewater Canyon to Big Bear Lake; the south route goes right up the side of the escarpment of the San Jacintos, immediately to the south. An access road, generally passable by 2WD, leads down into the east wash from Railroad Avenue; there is sufficient clearance under the freeway bridge to drive up to Tamarack Avenue, just north of the freeway.  The south path leads under the railroad bridge allowing access to the lands south of the tracks.

  The high water detector located under the west bridge, a 50' wood structure, also controls the indication at signal WB5801P and the eastward absolute signals at MP578.7. The paved road and the tracks begin to curve to the south.

 

579.4 Tracks separate from Railroad Avenue (RIV175E1)

  Ahead the paved road ends at the Verbenia Avenue Ramp on Interstate 10.  To continue along the right-of-way, there is a dirt road that separates to the right off the paved road and eases down to the tracks.

  The little unincorporated community of West Palm Springs Village lies just north of the interstate.

 

579.5 Rail Greaser

  Yes, another messy, sticky, gooey rail greaser.  Don't touch the rails anywhere around here for the fear of becoming mired in the glop.  Don't even walk in the stuff; you'll track it into your car and ruin the carpet or the floormats.

 

579.6 Dragging Equipment DETECTOR

  As measured by walking along the tracks, counting poles or looking at the odometer, this detector is really at MP579.8; that's false advertising for you.

 

580.0 1259' AMSL; -1.9% EB

 

580.2 Block Signals: EB 5802 - WB 5801P (RIV175F1)

  The westbound signal 5801 carries the "P" plate.  This signal, in addition to traffic duty, indicates the status of the high-water detector on the bridge at MP579.2.

 

580.6 State Highway 111 Overpass

  The junction of SR111 and I10 lies about 0.3 miles north; SR111 continues east and the city of Palm Springs is about 12 miles distant.

  Mount San Jacinto is the massive peak immediately south, at the top of that sheer, gray granite scarp; its elevation is 10,804', making it the highest summit in the San Jacinto Mountains and the highest peak in the Peninsular Ranges of California.

 

580.9 Track Access from Wendy Drive (RIV176A1)

  The dirt road along the north side of the right of way joins with Wendy Drive, a paved road that serves a small ranch next to the Roadside Rest Facility on Interstate 10.

  The old Whitewater Adobe lies inside a compound just north; this may be the location of the old Whitewater Station, shown on maps as old as 1891.

 

581.0 1160' AMSL; -0.3% EB

 

581.2 High-Tension Power Lines

  Note the Strange Contraption in the fenced compound along the north side of the tracks.

 

581.5 Junction of Wendy Road and Tipton Road (RIV176B2)

  A left turn here (north) onto Tipton Road leads to Whitewater, about 1 mile distant.  There is an offramp from I10 that provides access to this point.  Continue east on Tipton Road.

 

581.6 West Switch WEST PALM SPRINGS Siding

      EB/WB Absolute Signals

      Siding Length 6460'

 

581.8 Water Tank Foundations

  Concrete foundations along south side of tracks mark the location of a water tank used for steam engine watering.  Reportedly, the tank was installed in the Thirties and removed in the Fifties and put into service up in the Sierras.

  The south side of the track is now lined with a verdant, dense stand of athel tamarisk, a shrub/tree imported from Africa specifically to grow as a windbreak in this desert land.  This grove of tamarisks continues east for the next 0.7 miles.  At intervals all the way to Yuma there will be stands of this shrub/tree to protect the right-of-way from blowing and drifting sand.

 

582.0 1140' AMSL; -0.4% EB

 

582.4 Black Water Tank

  The black water tank along the south side of the rails is allegedly as much as 100 years old, augmented long ago by the now-removed water tank 0.8 miles west.

 

582.6 WEST PALM SPRINGS Station (RIV176C3)

      Tipton Road Grade Crossing

      East-facing 6445 Spur

  Helper sets will sometimes use the spur 6445 along the south side of the siding track but not very often.  Once, in April 1989, the last of the unmodified GP20s, 4060, was set out on this spur as bad-order.

  Tipton Road bends ninety degrees right and crosses the mainline, intersecting with SR111 about 0.2 miles south.  Interstate 10 is about 3 miles west on SR111 while Palm Springs and its wonders are 10 miles east, around on the leeward side of the San Jacintos.

  The 1954 timetable identifies this as "Palm Springs" station with a length of approximately 6500'.  Not much has changed since then but the addition of the word "West".

 

  East from here there are various paths across the upcoming Whitewater River; most of them are difficult and some are plain impossible for either 2WD or 4WD vehicles.  The best bet is along the south side of the tracks.  Note the "No Trespassing" signs.

  The Whitewater River at this point is a river only once in a couple dozen years; most of the time, there is little surface water this far out from the mountains to the north.  The river is fed from the precipitation in the form of rain, sleet and snow that falls on the southeast face of San Gorgonio Mountain about 14 miles northwest at 11,503 feet.  This water collects in the North, South, East and Middle Fork of the Whitewater River, roars briefly down the very upper reaches of Whitewater Canyon, begins to vanish as it passes the Whitewater Trout Farm, then pretty much sinks below the desert sands by the time it sees Interstate 10.  It varies seasonally, but chances are good there will always be little ground water at this point.

  Over the eons of regional uplift caused by movement along the San Andreas Fault, the great mountains of San Jacinto and San Gorgonio rose out of the landscape and both grew to heights over ten thousand feet.  These mountains catch the water that erodes the granite rock and carries the debris downhill toward the ocean or the Salton Sink.  The debris carried by countless years of flood flow have built the great alluvial fan upon which the railroad tracks cross.  The structure constructed by water-borne debris from Whitewater Canyon forms a semicircular apron beginning at the mouth of the canyon and sloping away from east through south to west.  The current seasonal stream that emanates from the Canyon now meanders down the face of this apron, picking one path for a time, then another. 

  The stream paths, seen from the air, appear braided, twisting and twining around each other as the courses change radically from year to year.  Because of this, the railroad, the Department of Transportation (Caltrans), the Wind Farm operators and the municipalities along the path of the Whitewater have erected dikes and other barriers and channels to attempt to keep the river pointed along a known path.  There are several bridges along the tracks for the next mile or two, each reflecting one of the many possible courses that runoff water might take on its gravity-induced fall.

 

582.8 East Switch WEST PALM SPRINGS Siding

      EB/WB Absolute Signals (EB Signals display "P" Plate)

      Leave County Lands: Enter Palm Springs city limits

The eastbound signals also indicate the status of the high-water detectors of three upcoming bridges at MP582.9, MP583.2 and MP583.3.

 

582.9 Steel Bridge over main stream of the Whitewater River

  Passage is possible with care and skill over sandy path about 100 yards south of the trestle.  Take care to avoid the myriads of two, three and four-wheel racers that frequent these parts.  One alternate route is the path along at right-of-way of the natural gas pipeline, about 0.3 miles north from here.  Go back to Tipton Rd. at MP582.6, and head north on the dirt track that leads north away from the ninety-degree bend in Tipton Road.  Follow this path to the wide, cleared pipeline route and turn east.  This route will come alongside the north flank of the railroad tracks at about MP584.7.

  This trestle bridge incorporates a high-water detector (north side, east end), the condition of which is displayed at signal WB5839P and at the eastbound absolute signals at the east switch of West Palm Springs.  The bridge has "P" plates at both ends: the plate at the west end of the span has faded out, however.

  The south right-of-way path is very rocky and slow along here.  There is no good path through here, only ones less bad.  Experiment.

 

583.0 1120' AMSL; -1.4% EB

 

583.1 Concrete Bridge over branch of the Whitewater River

  A 100-foot-long, concrete bridge carries the rails over this channel with enough clearance for vehicular passage underneath.

 

583.2 Bridges over branches of the Whitewater River (RIV176D3)

      Leave Palm Springs: Enter County Lands

  The tracks first cross a river branch with a 60' long, wooden trestle bridge.  There is only a few feet of clearance under this bridge, not enough for much more than a go-kart.

  The second bridge, a few hundred feet east, is a 180'-long, concrete trestle which includes a high-water detector that also controls the WB5839P block signal and the absolute signals at the east end of West Palm Springs; if the detector trips, the signals will display a Stop indication.  "P" plates are intact on the stanchions at both ends of this bridge.  There's only one problem with the placement of the detector: it's at the northwest corner of the bridge, shielded from storm flow by debris deposits and on the inside of the curve in the wash.  Any storm water running down the wash will erode the east end of the bridge abutments long before water gets over to the detector.

  By the way, even if there is water in the creek bed, don't try to go for a swim; note the posted sign:

 

 

  At the time of this writing there was nearly 5 gallons of water per second flowing in this channel.  I suspect the sign warns one of the head injury that they ll get from a swan dive. The south right-of-way has a straightforward ford of the stream about 75 yards south of the tracks.

  For the next 0.2 miles the trail becomes very cluttered with cobbles, stones and just plain boulders.  Pass with caution and care.

 

583.3 Bridge over branch of the Whitewater River

  This 50-foot steel and concrete bridge, like the bridges at MP583.2 and 582.9, incorporates a high-water detector that again controls the WB5839P and the eastbound absolutes at MP582.8.  Again, "P" plates are used at each end of this structure to indicate its protected status.

 

583.4 Bridge over branch of the Whitewater River

  The gulley is spanned with a 50'-long, wooden trestle bridge with insufficient clearance underneath for vehicle passage.

 

583.5 Bridge over branch of the Whitewater River

  This gulley is spanned with another 50-foot-long, wooden trestle bridge with insufficient clearance underneath for vehicle passage.

  The southside access road passes through firm sand in the bottom of the wash; don't dawdle here, otherwise a two-wheel-drive vehicle might get stuck.