The Coast Route is divided into the following subdivisions:
· Santa Barbara subdivision from Burbank Junction to San Luis Obispo
· Coast subdivision from San Luis Obispo to North Elmhurst
In Southern Pacific days, this line running geographically north-south for most of its route was nonetheless described as (railroad) east going away from San Francisco and (railroad) west heading towards San Francisco. UP has changed at least some of this usage to north/south, reflecting the actual geography, where appropriate. In SP days, following the end of Timetable & Train Order control once dispatcher-to-crew radio was universal, this line was largely operated using Direct Traffic Control (DTC), a system of fixed length blocks, permission to occupy which was given to a train by radio instructions from the dispatcher. In the nine years between the the UP takeover and 2005, UP has converted the line to operation using Track Warrant Control, by means of which the dispatcher gives radio permission to a train to occupy a variable length section of the tracks. A route description for 2005 will thus not include the starting and ending points for the DTC blocks.
West of Ventura (the Amtrak station a little to the east of the river is at MP 394.0), the single track CTC line runs alongside the ocean, or very close to it, for the next 100 or more miles. Immediately west of the Ventura River crossings, an SP branch line to Ojai once went north at Ventura Junction. The speed limit along here is 60 mph for passenger trains and 40 mph for freights. With Emma Wood State Beach occupying the strip of land between rails and ocean, the line curves northwest, under a road bridge carrying a connector between US 101 (on the north side of the line) and the old highway on the south side, and then occupies the space between the slightly lower old road along the beach front, to the southwest, and the freeway further up the hillside on the northeast. There is the site of a former detector at MP 393.2, Dulah, where line and roads turns west to follow the coastline, and then back northwest again a short distance afterwards, a 4,960 ft. siding at Seacliff (MP 386.3-385.3), where the highway crosses over the railroad, there is a pier out to an artificial island containing oil rigs, bridges over Willow Creek, La Conchita Creek, and the road (Rincon Road) into La Conchita on the north side, and both line and road curve around the unstable hillside on the northeast side, the passenger speed limit drops to 55 mph while that for freight is unchanged, there is a detector at MP 383.1, and US 101 bridges overhead, Punta (MP 382.1), adjacent to Rincon Beach. There are places where there is barely enough space for the railroad and US Highway 101 (built to Interstate Highway standards) between the ocean and the mountains.
East of Carpinteria, the highway moves away to the north, as the line crosses Carpinteria Creek and passes Carpinteria State Beach, with a campground between the line and the beach. There is a passenger station at Carpinteria (MP 377.8), where the passenger speed limit falls again to 50 mph, Grade crossings at Palm and Linden Avenues, a bridge over Franklin Creek, a grade crossing at Sandyland Cove Road, and the line returns to the south side of US 101, as it turns due west, as it turns northwest again, and then runs directly on the coast, past a grade crossing at Padaro Lane, adjacent to a US 101 off-ramp and on-ramp, with Padaro Lane continuing along the coast side of the line. Lane, rail line, and highway turn due west following the coast, Padaro Lane crosses overhead ending the road on the coast side, and the line passes through Ortega (MP 374.0). There is a grade crossing at Wallace Avenue, Lookout Park on the ocean side as the line is now partway up a mud cliff.
After Summerland, there is a grade crossing at Posilipo Lane, and the line bridges over Oak Creek, near the site of the erstwhile Miramar hotel complex, where retired streamlined passenger cars once served as snack bar and lounge, and the line moves away from the beach to pass through the Santa Barbara urban area. There is a grade crossing at Eucalyptus Lane, a bridge over Montecito Creek, a grade crossing at Olive Mill Road, US 101 comes alongside to the north again, the line crosses over a Cabrillo Boulevard (SR 225) on a deck girder bridge and passes the Santa Barbara Wildlife Refuge on the south side of the line.
At South Santa Barbara (MP 368.6), the line angles west-southwest, Two Main Tracks start, and the passenger speed limit drops to 45 mph. There is a grade crossing at Milpas Street, an extra track on the south side of the line, once used for Amtrak trains terminating and originating here, the line crosses Santa Barbara Street and then State Street at a grade crossings to reach the Santa Barbara station (MP 367.4), where the handsome mission-style depot is on the north side of the line, and there is one platform on the north side of the tracks, and one between the tracks. On the west side of the depot is the famous pepper tree, with its spreading branches covering almost the entirety of a small park area. The line then crosses over Castillo Street on a concrete bridge and turns northwest, on the north side of a bluff separating the line from the ocean, and on the south side of a long line of tall trees separating the line from US 101, under a pedestrian bridge at Ortega Street, bridging over Carrillo Street, under pedestrian bridges at Anapamu Street and Micheltorena Street, and over Mission Street.
The line reverts to single track and the speed limit rises to 79-60 at North Santa Barbara (MP 365.0, elevation 118 ft.), with the line angling west-northwest, under Las Positas Road, under La Cumbre Road, past a detector at MP 363.0, and then west at Hope Ranch (MP 362.9, el. 161), away from US 101 for one of the few short stretches through this area. After bridging over Hollister Avenue, the line comes back along the south side of US 101 again, passing under Turnpike Road, over Ygnacion Creek, under Patterson Avenue and then under Ward Memorial Boulevard (SR 217) as the latter separates from US 101. There is a bridge over San Jose Creek, a grade crossing at Kellogg Avenue, adjacent to the old SP Goleta location at MP 359.4 (el. 42 ft.), Fairview Avenue bridges overhead just west of the closed grade crossing that it formerly used, there is a spur at La Patera (MP 358.3, el. 23 ft.), used by Amtrak trains on layover, and the Amtrak station at Goleta (MP 358.2), where most of the Pacific Surfliner service terminates and originates in 2005. UC Santa Barbara is south of the line at this point, occupying all the land between the line and the coastline.
The western edge of the Santa Barbara built-up area is followed by a line segment which has a number of scenic trestles over beach-access ravines, as the line runs right along the coast line at the top of unstable earthen cliffs, maintaining its generally westerly heading but locally curving along the coastline, with the US 101 freeway running directly along the north side of the line the whole way. Los Carneros Road bridges overhead, the line bridges Tecolotito Creek, the line passes through Colomar, and Glen Annie Road bridges overhead. There is a 9,369 ft. siding at Ellwood (MP 357.8-355.8, el. 88 ft.), where CTC ends and Track Warrant Control with Automatic Block Signals begins, and Hollister Avenue bridges overhead again. There are two grade crossings over access roads to the beach west of the Sandpiper Golf Course, the line reaches the shore again,, passing through Naples (MP 351.7, el 95 ft.), where the passenger speed limit drops to 75 mph, crossing over Dos Pueblos Canyon/Creek on a trestle, over the access roads to El Capitan State Beach and Cañada del Capitan Creek (El Capitan Canyon) on a trestle, and through a 4,964 ft. siding at Capitan (MP 346.5, el. 80 ft.—TWC does not need separate control points at the end of sidings, as are used by the current CTC system further east/south, so this is the location of the marker in the middle of the siding).
The line crosses over two more creeks on bridges or trestles, passes Refugio State Beach, where there are access roads to the shore, crosses over Tajiguas Creek adjacent to Tajiguas (MP 342.4, el. 52 ft.), where the speed limit drops to 50-40, crosses two more creeks (Arroyo Quemado, Cañada de la Pita, passes a detector at MP 341.3, where the speed limit is 65-60, crosses over five more creeks (Arroyo Hondo (on a trestle), Cañon de Guillermo, Cañon de la Posta, Cañon del Molino, Cañon San Onofre), Alcatraz Beach, a trestle over Cementerio Canyon, the 3,747 ft. siding at Gaviota (MP 336.3, el. 96 ft.), where the speed limit is 79-60, and the trestle over Gaviota Canyon at the west ("north") end of Gaviota (MP 335.4), with the road access to the beach campground at Gaviota State Park passing beneath the trestle. The speed limit is 55-50 across the trestle, becoming 60-40 along the cliffs thereafter.
West of Gaviota, the highway veers away to the north, and the railroad is alone alongside the ocean, with earthen cliffs on the south side and grassy hillsides useful for grazing cattle on the north side. The line passes a detector at MP 333.7, crosses trestles over Cañada del Agua Caliente and Cañada de Alegria, passes a spur at Sacate (MP 331.4, el. 77 ft.), crosses over Cañada de la Cuarta, Cañada del Sacate, passes Drake (el. 51 ft.), crosses over Cañada de Santa Anita, Cañada de las Panochas, and Arroyo El Bulito, passes San Augustine (el. 53 ft.), crosses over Arroyo San Agustin and Cañada de la Lluega, passes Gato, crosses over Barranca Honda and Cañon del Gato, passes a detector at MP 327.6, el 55 ft., crosses over Cañada del Cola, Damsite Canyon and Wood Canyon, and a 6,126 ft. siding at Concepcion (MP 321.4, el. 110 ft.).
At Point Conception, the coast, and thus the railroad, turns geographically northward from its heretofore east-west alignment, with the line specifically running north-northwest, crossing Black Canyon, Jalama Road at grade, and Jalama Creek at Jalama Beach County Park on a trestle, turning northwest, crossing Long Horn Canyon and Cañada del Jolluro, passing a 5,818 ft. siding at Sudden (MP 314.0, el. 78 ft.), crossing Sudden Canyon, Cañada del Morida, Cañada de los Sauces, another canyon, and Cañada del Rodeo, passing a detector at MP 309.0, where it turns due west, crossing Cañon Aqua Viva, to Arguello (el. 108 ft.), crossing Oil Well Canyon, and then curving around the bluffs at Rocky Point, past Arlight (el. 203 ft.) and Point Arguello, until it is heading slightly east of due north, at South Vandenberg (MP 305.8).
Here, the line runs through Vandenberg Air Force Base, site of the launch facilities for the Pacific Test Range and polar-orbiting satellites, crossing Red Roof Canyon and Grey Canyon, passing Destroyer Rock, site of one of the worst peacetime US Naval disasters when a fleet of ships turned east before reaching point Concepcion and sailed right into the cliffs in 1924, and Point Pedernales, crossing Cañada Honda on a trestle, and passing Honda (MP 304.6, el. 109 ft.). The line crosses Spring Canyon, passes Surf (MP 299.4, el. 50 ft.), where there is a wye junction with the branch east to Lompoc and White Hills, and a passenger station with depot on the east side of the line, replacing the former SP depot that had been here prior to Amtrak dropping service here on its takeover from SP in 1971, followed by the bridge over the Santa Ynez River, a turn to the north-northwest, crossing Cañada Tortuga and two more small canyons, and then turning to the north-northeast to reach the wye junction at Tangair (MP 293.9, el. 212 ft.), with a spur east to Vandenberg AFB, where the speed limit drops to 50-40.
Turning north and bridging across Los Alamos Creek, and then north-northeast again, through Narlon, el. 131 ft., where the speed limit is briefly 60-40 before reverting to 50-40, the line then turns sharply inland, up Shuman Canyon, with grass covered hillsides, past a detector at MP 286.8, Antonio (MP 286.7, el. 246 ft.), a curve southeast and then northeast, Casmalia (MP284.5, el. 285 ft.), where the line crosses Lompoc Casmalia Road at grade and the speed limit falls to 40-40, and Devon (MP 283.2, el. 332 ft.), where the line turns north again. There is a grade crossing, Shuman (MP 281.5, el. 405 ft.), where the speed limit falls to 40-35, a detector at MP 280.7, where the line turns northeast and then, coming along the west side of the Santa Maria Valley, makes a sweeping turn to the northwest under Black Road.
The line passes through Waldorf (MP 277.4, el. 203 ft.), where the speed limit rises to 60-40 and the line turns north, under Cabrillo Highway (SR 1), crossing Black Road at grade with SR 1 alongside to the west, passing the junction with the Santa Maria Valley shortline at SMV Junction (MP 273.6), where the speed limit falls again to 50-40, crossing Main Street (SR 266), passing Guadalupe (MP 273.2, el. 87 ft.), where there is a former SP depot on the east side of the line, followed by some sidings, after which the speed limit rises to 70-60, and crossing Simas Street.. The line turns northeast as it crosses the Santa Maria River and then gradually curves north-northwest, crossing Division Street at grade and SR 1 (Cabrillo Highway) on a bridge as both bridge over Oso Flaco Creek, passing a detector at MP 269.7, crossing Flaco Lake Road at grade, passing Bromela (MP 269.0, el. 51 ft.), and crossing a small creek, after which the line curves north, past a 5,850 ft. siding at Callender (MP 267.0, el. 97 ft.) where there is a petrochemical sulfur plant on the east side of the line that receives trainloads of coal by rail.
SR 1 is alongside to the east, as both line and road bridge Black Lake Canyon, and there is a detector at MP 264.4 as the line heads north-northeast and drops down the northwest side of a coastal bluff onto the flatland behind the coastal dunes below and then turns northwest across that flatland, crossing Arroyo Grande Creek, passing a spur at Oceano (MP 262.5, el 20 ft.), and under SR 1 which then comes alongside to the west, where the line turns north with various coastal campgrounds just east of the coastal dunes on the west side of the line, a 6,308 ft. siding at Grover (MP 260.9), where the route brushes the shore again at Grover Beach, a grade crossing at Grand Avenue, and Pismo (MP 259.4, el. 38 ft.), where the speed limit drops to 60-40 as the coast turns away to the west and the line crosses Meadow Creek and passes under the US 101 freeway.
The line then turns inland to head for San Luis Obispo, turning northeast through Price Canyon, a valley with grassy hillsides past a detector at MP 256.7, where the speed limits drop to 40-35, Hadley (MP 255.6), turning north again as the speed limits rise to 60-40, bridging over Ormonde Road, turning northwest under Price Canyon Road and then north past Edna (MP 254.6), crossing SR 227 and Biddle Ranch Road at grade, and turning northwest, across Tank Farm Road, then with Bullock Lane on the east side of the line, crossing Orcutt Road at grade to South San Luis Obispo (MP 251.5, el. 217 ft.), where the speed limit drops to 35 mph and Two Main Track CTC starts (extended south in 2005 from its former end at North San Luis Obispo). There are extra tracks on the east side of the line, but the former locomotive depot on the west side has now completely disappeared under light industry and gentrified housing. The line turns north-northeast just past where it once crossed the narrow (3 ft.) gauge Pacific Coast Railway, under a pedestrian and bicycle bridge built in the 1990s, into San Luis Obispo (MP 248.7, el. 240 ft.), where the speed limit is 25 mph, there are two low-level platforms serving two tracks (the second in between the two passenger tracks), and the depot is on the west side of the tracks.
At the north end of San Luis Obispo station, the line bridges over Johnson Avenue and San Luis Obispo Creek, turns north-northwest, the number of tracks falls to single track, CTC at North San Luis Obispo (MP 248.5), and the speed limit rises to 30-25. The line crosses Marsh Street at grade, bridges over Monterey Street, passes beneath Mill Street, and bridges over US 101. California Boulevard comes alongside on the east/north side of the line, there is a grade crossing at Foothill Boulevard, and the line passes through the campus of California Polytechnic University San Luis Obispo, with student housing on both sides of the line, and bridges over Highland Drive.
Once outside the town, the line begins the climb over the coastal mountain range using the Cuesta Grade, through savanna-style countryside (grassland and California Live Oaks), past Hathaway, a detector at MP 248.2, where the line turns northwest, across the Stenner Creek Trestle over a seasonal stream bed in the hillside to the northeast side of the line curving along it, past the former location of a wye at Goldtree (e. 502 ft.) that once served a spur to a National Guard camp off to the west, past the California Men's Colony also on the west side of the line, turning through a clockwise semi-circle (the Goldtree horseshoe curve) to run south-southeast along the hillside, past a detector at MP 244.8, making a counter-clockwise semi-circle around the curve of the hillside, to head almost due north, at 5,100 ft. Chorro siding (MP 243.8-242.8, el. 674 ft.), where the speed limit falls to 25-20, passing through 722 ft. tunnel 11 (MP 242.5), turning due east along the hillside, then southeast, passing a detector at MP 241.5, then northeast, with curves along the contour line, making another clockwise semi-circle back to the southwest through the 5,750 ft. siding at Serrano (MP 240.0-238.8, el. 943 ft.), turning southeast along the hillside for some distance, and then making a counter-clockwise semi-circle around the curve of the hillside to the north, coming alongside the cleft in the mountains east of the line through which US 101 makes its much steeper climb over the pass, and heading back northwest along the curving hillside through 525 ft. tunnel 9 (MP 237.5), 481 ft. tunnel 8 (MP 237.2), turning northeast in 1,354 ft. tunnel 7 (MP 236.7) and north at Thyle to 3,610 ft. tunnel 6 (MP 235.9) to reach Santa Margarita Pass (elevation 1,320 ft.) in the middle of the tunnel.
Past the north end of the tunnel, US 101 crosses overhead on a pair of concrete.bridges, and there is a spur at Cuesta (MP 234.0, el. 1285 ft.), where the line speed rises to 30-25, after which the line descends into the Salinas Valley. The south end of the Salinas Valley, at a higher elevation than further north, is mostly savanna with valley oak trees fairly widely spaced. (There are also blue oaks in the hills, and cottonwoods and willows along the creeks and river.) The line turns east-northeast, then north-northeast, all the while with US 101 on the west side, as it descends past a detector at MP 233.5 (dragging equipment, talk on defect only) to the end of CTC at South Santa Margarita (MP 233.1), south end of a 19,015 ft. siding (to Santa Margarita), where the speed limit rises to 35 mph on the now TWC ABS single track (with a passing siding at this spot), and finally east-northeast again, now with SR 58 (El Camino Real) alongside to the north/west, crossing Wilhelmina Avenue, Encina Avenue and Estrada Avenue (SR 58) at grade, past Santa Margarita (MP 229.6, el. 998 ft.), the former location of the depot, where the speed limit is 55-40, and the line turns north, with El Camino Real (no longer SR 58) alongside to the west.
There is a grade crossing (known as "oil crossing") over a road to the Concord-Phillips pumping station east of the line, crossovers in the middle of the long Santa Margarita siding, another grade crossing with a quarry road at Cushing, the dry bed of the Salinas River comes alongside to the east, and the line reaches the north end of the long siding from South Santa Margarita. El Camino Real moves away on the west side, there is a grade crossing at Asuncion Road, the line turns north-northwest at Eaglet, a through truss bridge over Santa Margarita Creek, another (private) grade crossing as Sandoval Road comes alongside to the west, a grade crossing at Santa Clara Road, where the road alongside ends, another private grade crossing, a detector at MP 226.9, where the speed limit is 40-35, a grade crossing at Halcon Road, behind the state hospital, with line speeds of 50-40 through Henry, where Cortez Avenue is alongside to the west and Gabarda Road to the east. There is a grade crossing at Curbaril Avenue, the line turns northwest, at Atascadero (MP 223.3), there is a spur on the southwest side, with Miramon Avenue alongside to the east and Traffic Way to the west, and Mercedes Avenue (SR 41) bridges overhead and Capistrano Avenue passes beneath.
There is a detector at MP 221.7 (dragging equipment, talk on defect only), Asuncion, the US 101 freeway and then Main Street alongside to the west, a new (in 2005) overcrossing leads to a new housing development between tracks and river, a curve to the northeast following the course of the Salinas River, two private grade crossings, a grade crossing at Templeton Road, adjacent to the Templeton south switch, a 4,700 ft. siding at Templeton (MP 218.4), a curve north, still following the west bank of the river, a bridge over a creek, private grade crossings at Cow Meadow Place (within the siding) and Marquita Avenue/Creekside Ranch Road/Phillips Road at the north end of Templeton, another bridge over a creek, a grade crossing at Volpi Ysabel Road (MP 217), a detector at MP 214.6 (dragging equipment, talk on defect only), and a private grade crossing adjacent to the north end of Ramada Drive. US 101 passes overhead at an acute angle on two concrete bridges, Niblick Road bridges overhead, the south end of Pine Street passes beneath, Pine Street runs alongside to the west and Riverside Avenue to the east, and the line reaches the passenger station at Paso Robles (MP 212.9), where the speed limit is 55-40. The Paso Robles depot, a former SP structure, is on the west side of the line, with a small freight station and yard to its south on the same side of the line, with Riverside Avenue businesses on the east side at this point.
After passing through Paso Robles, where 10th, 12th, 13th 16th and 21st Streets cross at grade, 24th Street bridges overhead, the line continues past a detector at MP 210.7, Hot Springs Road crosses at grade, Spring Street comes alongside to the west as US 101 bridges overhead, and the line regains the west bank of the river. Monterey Road comes alongside to the west, there is a grade crossing at Wellsona (MP 207.6), adjacent to Helen Moe's Antique Doll Museum, where the speed limit is temporarily 50-40 before resuming 55-40, and the line passes through San Miguel, where the Rios California Adobe is on the west side of the line, Mission Street comes alongside to the west, the restored mission is directly across that street on the west side of the line, and grade crossings at 11th Street and River Road.
The line turns northwest, with US 101 on its west side and the river on its east side, enters Camp Roberts, passes through the east 3,770 ft. and west 5,000 ft. sidings at McKay (MP 202.3-200.5), and Nacimiento, where the railroad turns north, bridges over the river and a road to a military gate in Camp Roberts, and moves to the eastern side of the still narrow valley (where it remains until well north of King City), and then turns west-northwest, crossing Mare Canyon Road at grade. There is a detector at MP 192.8, a 5,150 ft. siding at Bradley (MP 192.5), where Sargents Road crosses at grade, the line turns north, crosses Sarah Canyon, turns north-northwest past a detector at MP 187.9, and north again through the 4,700 ft. siding at Wunpost (MP185.7), where there are spurs on the east side of the line for loading the oil tank car unit trains ("oil cans"). The line crosses Sargent Creek, as a road comes nearby on the east side, and crosses Deadman Gulch, runs through an active oil extraction field on both sides of the line, north-northwest to the 5,780 ft. siding at San Ardo (MP 179.5), where the speed limit rises to 60-40, and then runs generally between north-northwest and northwest, following the contour of the hillside on the east side of the valley.
There is a detector at MP 175.4, the speed limit rises to 70-60 and the line passes through San Lucas (MP 169.1), a detector at MP 166.7, Welby (MP 163.7), and a 6,300 ft. siding at King City (MP 160.3), where the small town is on the west side of the line, with a former SP depot, and the speed limit is temporarily 60 mph before reverting to 70-60 north of the town. The northern part of the valley is one of the most fertile agricultural areas in the world, and the valley floor is completely given over to agriculture. Much of the produce (tomatoes, green beans, etc.) grown in this area is snapped up by the major food suppliers, such as Birdseye and Hunt-Wesson. The line continues through Elsa and Coburn, with a side road alongside to the east and the hillside just beyond that, past a detector at MP 155.5, and through 1,305 ft. tunnel 5½ (MP 152.0) in a bluff projecting from the hillside to the east, past Metz and Harlem (MP 144.9), where the speed limit falls to 45-40 for the turn west, alongside the river that is not adjacent on the south side of the line, and rises to 70-60 as the line turns northwest again, now in the middle of the valley but still east of the river, to the 7,450 ft. siding at Soledad. The rest of the way into Salinas, the rails follow alongside US 101 again, first with the road to the east and later with the road to the west. The coastal mountains follow the west side of the valley all the way along here, several miles west of the line.
The state prison at Soledad is on the east side of the line (and across the highway), north of the town. The line passes Camphora (MP 137.4), a detector at MP 136.3, a spur at Molus (MP 135.5), Canandaigua (MP 132.4), a 7,475 ft. siding at Gonzales (MP 131.2), Chualar (MP 125.7), a detector at MP 123.7), Spence (MP 122.1), and a detector at MP 119.1. At Firestone (MP 116.9), nee Spreckels Junction, a branch from Spreckels trails in from the southwest. On the west side of the curve from the branch is a spur where several private railroad passenger cars are stored. The speed limit is now 60-40, as the town of Salinas now surrounds the line on both sides, with agricultural plants on both sides of the line. A main road passes underneath a concrete bridge carrying the line, from south-southeast to west-northwest. The Salinas depot is on the west side of the line at the passenger station at MP 114.9, with a small freight yard on the northeast side of the line northwest of the station.
North of Salinas, the speed limit rises to 70-60 and CTC begins again at North Salinas (MP 113.0. The line turns north-northwest at Graves, as the Salinas valley falls away, past a detector at MP 111.9, Cooper (MP MP 110.8), a 6,300 ft. siding at Castroville (MP 108.1-106.8), where the line from Seaside, formerly the Monterey branch, trails in from the southwest, and north to Moss Landing (MP 104.0), where a spur from the Moss Landing power plant on the shores Monterey Bay, less than a mile to the west, trails in from the west, the line turns northeast and then generally north again, and the speed limit falls to 50-40. The railroad runs through the beautiful nature reserve at Elkhorn Slough, mostly to the west of the line along the tidal inlet at this point, past a detector at MP 99.1, to the end of CTC at Watsonville Junction (MP 97.4 where there is a small yard on the west side of the line and the Santa Cruz branch cuts off to head north. Then the TWC ABS line turns due east through market gardens along the south side of the Pajaro River, through Eaton and Aromas, turns north with a rock plant on the east side of the line to Logan (MP 89.7), where the speed limit falls to 30-25 and CTC resumes, then turns southeast and then east and crosses the San Andreas Fault from the Pacific Plate onto the mainland (North American Plate), crossing Chittenden Pass alongside the Pajaro River as it does so.
Turning north, the line passes Sargent (MP 83.6), where the peed limit increases to 50-40, a detector at MP 83.3, Corporal (MP 83.0), where CTC ends and TWC ABS begins and the speed limit is 60-40, and Carnadero (MP 79.7), where the Hollister branch trails in from the southeast, the speed limit falls to 55-40, and in 2003 there was still a wooden beet loader adjacent to the track on the east side. The line turns north-northwest to the beginning of CTC at Luchessa (MP 78.4), where the speed limit falls to 35 mph, and Gilroy, south end of Caltrain service.