Question: How deep is the Riverwalk in San Antonio in the state that still uses electric chair?

Knowledge 1: Capital punishment in Texas
Texas changed its execution laws in 1923, requiring the executions be carried out on the electric chair and that they take place at the Texas State Penitentiary at Huntsville (also known as Huntsville Unit). From 1928 until 1965, this was also home to the state's male death row. The first executions on the electric chair were on February 8, 1924, when Charles Reynolds, Ewell Morris, George Washington, Mack Matthews, and Melvin Johnson had their death sentences carried out. The five executions were the most carried out on a single day in the state. The state would conduct multiple executions on a single day on several other occasions, the last being on August 9, 2000. Since then, the state has not executed more than one person on a single day, though there is no law prohibiting it. A total of 361 people were electrocuted in Texas, with the last being Joseph Johnson on July 30, 1964. [SEP] Knowledge 2: San Antonio River Walk
The San Antonio River Walk (also known as Paseo del Río or simply as The River Walk) is a city park and network of walkways along the banks of the San Antonio River, one story beneath the streets of San Antonio, Texas, USA. Lined by bars, shops, restaurants, nature, public artwork, and the five historic missions, the River Walk is an important part of the city's urban fabric and a tourist attraction in its own right.
Knowledge 1: Capital punishment in Texas
Texas changed its execution laws in 1923, requiring the executions be carried out on the electric chair and that they take place at the Texas State Penitentiary at Huntsville (also known as Huntsville Unit). From 1928 until 1965, this was also home to the state's male death row. The first executions on the electric chair were on February 8, 1924, when Charles Reynolds, Ewell Morris, George Washington, Mack Matthews, and Melvin Johnson had their death sentences carried out. The five executions were the most carried out on a single day in the state. The state would conduct multiple executions on a single day on several other occasions, the last being on August 9, 2000. Since then, the state has not executed more than one person on a single day, though there is no law prohibiting it. A total of 361 people were electrocuted in Texas, with the last being Joseph Johnson on July 30, 1964. [SEP] Knowledge 2: San Antonio River Walk
The San Antonio River Walk (also known as Paseo del Río or simply as the River Walk) is a network of walkways along the banks of the San Antonio River, one story beneath the streets of San Antonio, Texas, USA. Lined by bars, shops, restaurants, nature, and public art, the River Walk is an important part of the city's urban fabric and a tourist attraction in its own right.
Knowledge 1: Capital punishment in Texas
Texas changed its execution laws in 1923, requiring the executions be carried out on the electric chair and that they take place at the Texas State Penitentiary at Huntsville (also known as Huntsville Unit). From 1928 until 1965, this was also home to the state's male death row. The first executions on the electric chair were on February 8, 1924, when Charles Reynolds, Ewell Morris, George Washington, Mack Matthews, and Melvin Johnson had their death sentences carried out. The five executions were the most carried out on a single day in the state. The state would conduct multiple executions on a single day on several other occasions, the last being on August 9, 2000. Since then, the state has not executed more than one person on a single day, though there is no law prohibiting it. A total of 361 people were electrocuted in Texas, with the last being Joseph Johnson on July 30, 1964. [SEP] Knowledge 2: San Antonio
San Antonio, Texas City City of San Antonio From top to bottom, left to right: Downtown San Antonio, Tower Life Building, San Antonio Riverwalk, Bexar County Courthouse, Tower of the Americas, Cathedral of San Fernando, The Alamo, Mission Concepcion Flag Seal Coat of arms Nickname (s): San Antone, S.A., River City, Alamo City, Military City USA Motto (s): Libertatis cunabula (Latin, Cradle of liberty) Location in Bexar County in the state of Texas San Antonio Location in Texas San Antonio San Antonio (the US) Show map of Texas Show map of the US Show all Coordinates: 29 ° 25 ′ N 98 ° 30 ′ W ﻿ / ﻿ 29.417 ° N 98.500 ° W ﻿ / 29.417; - 98.500 Country United States State Texas Counties Bexar, Medina, Comal Foundation May 1, 1718 Incorporated June 5, 1837 Named for Saint Anthony of Padua Government Type Council - Manager Body San Antonio City Council Mayor Ron Nirenberg (I) City Manager Sheryl Sculley City Council List (show) Robert C. Treviño William ``Cruz ''Shaw Rebecca Viagran Rey Saldaña Shirley Gonzales Greg Brockhouse Ana Sandoval Manny Pelaez John Courage Clayton Perry Area City 465.4 sq mi (1,205.4 km) Land 460.93 sq mi (1,193.7 km) Water 4.5 sq mi (11.7 km) Elevation 650 ft (198 m) Population (2017) City 1,511,946 (7th) Density 3,241.76 / sq mi (1,238.2 / km) Metro 2,473,974 (24th) Demonym San Antonian Time zone CST (UTC − 6) Summer (DST) CDT (UTC − 5) Zip Codes 78201 - 66, 78268 - 70, 78275, 78278 - 80, 78283 - 89, 78291 - 99 Area codes 210 (majority), 830 (portions), 726 Interstates U.S. Routes Website www.SanAntonio.gov

Answer: one level down from the automobile street