Crossing of the San Antonio Belt & Terminal Railway and the San Antonio & Aransas Pass Railroad
In 1917, the Missouri-Kansas-Texas (MKT, "Katy") railroad funded the construction of the San Antonio Belt & Terminal (SAB&T) Railway (and then leased it for 99 years) to provide switching services among railroads in the San Antonio area. One of the customers for the SAB&T's services was the San Antonio & Aransas Pass (SA&AP) Railroad which had a main line from Corpus Christi to Kerrville via central San Antonio. The SA&AP became controlled by the Southern Pacific (SP) system and was eventually merged into the Texas & New Orleans (T&NO) railroad, SP's principal operating company in Texas. Tower 109 was established in 1918 at a crossing of the SAB&T and SA&AP railroads in south central San Antonio, and was abandoned in 1959.
Location Map, Tower 109

Below: The 1952 republication of the 1912 Sanborn Fire Insurance map of San
Antonio shows
the tower located immediately west of the crossing. Most likely,
this map was updated sometime
after the construction of Tower 109 in 1918. Other
than a "2" indicating a two story structure,
the writing on the map at the tower
is illegible under high magnification.

Aerial Images, Tower 109 Vicinity

Above: This Microsoft Visual Earth image of the Tower 109 crossing shows that
the SAB&T tracks have been removed,
but the ex-SA&AP tracks remain in use. The tower was located where debris
now sits between the end of
the parking lot
and the SA&AP tracks.

Above: This view is looking south down the SAB&T ROW toward the site of Tower
109. The ex-SA&AP trestle is at right. (Jim King photo, Sept. 2009)
Below: South of Tower 109, the scars of the former SAB&T wye junction are visible in this
satellite image. This junction
connected
SAB&T lines among Towers 109, 105 and
112. A small segment of the "Sunset Route"
east/west main line
is visible in the lower left corner.
