Brazos Santiago Pass | |
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![]() Coast Survey of Brazos Santiago Pass ca. 1867[1] | |
![]() Illustration of Brazos Santiago Pass | |
Location | |
Country | United States |
Coordinates | 26°03′56″N 97°09′31″W / 26.06563°N 97.15858°W |
Specifications | |
Length | 1.14 miles (1.83 km) |
NOAA NDBC | Brazos Santiago ~ BZST2 |
History | |
Former names |
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Modern name | Brazos Santiago Inlet |
Current owner | State of Texas |
Geography | |
Direction | West |
Start point | Gulf of Mexico |
End point | Port Isabel |
Beginning coordinates | 26°03′59″N 97°08′42″W / 26.06631°N 97.14496°W |
Ending coordinates | 26°03′59″N 97°09′50″W / 26.06632°N 97.16395°W |
Branch(es) | Laguna Madre |
Branch of |
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Connects to | |
GNIS feature ID | 1372708 |
Brazos Santiago Pass is a natural coastal landform located in the Lower Laguna Madre and Lower Rio Grande Valley on the furthest southern beach terrain of the Texas Gulf Coast.[2] The seacoast passage is interpolated by barrier islands encompassing the southern Brazos Island and the northern South Padre Island.[3]
The waterway inlet is a navigable strait spanning a water depth of 42 feet (13 m) and a waterway channel distance of 1.14 miles (1.83 km). The Brazos Santiago channel and seaward approach is defined by parallel jetties designed with a breakwater separation of .25 miles (0.40 km). The jetty harbor development sustains the passage entrance from coastal erosion, coastal sediment transport, longshore drift, and sandbank shoals. The South Padre Island jetty is .6 miles (0.97 km) from the Padre Island shoreline annexed by the Boca Chica jetty extending .3 miles (0.48 km) into the Brazos Island continental margin.
The natural ocean inlet has a shoreline distance on Brazos Island of 7.5 miles (12.1 km) to the Rio Grande often entitled as the Mexico–United States border.