{"name":"Congress Avenue Bridge","city":"Austin, Texas","canonical_url":"https://gydeinfo.com/austin/places/congress-avenue-bridge/","markdown_url":"https://gydeinfo.com/austin/places/congress-avenue-bridge.md","updated_at":"2026-06-14T18:42:09.495521+00:00","facts":[{"claim":"The Ann W. Richards Congress Avenue Bridge in Austin is home to the world’s largest urban bat colony.","citation":"https://www.guinnessworldrecords.com/world-records/341447-largest-urban-bat-colony","source_title":"The Congress Avenue Bridge Bat Colony","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-14T18:35:09.133810+00:00"},{"claim":"The colony is made up of Mexican free-tailed bats, scientifically known as *Tadarida brasiliensis*.","citation":"https://www.guinnessworldrecords.com/world-records/341447-largest-urban-bat-colony","source_title":"The Congress Avenue Bridge Bat Colony","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-14T18:35:09.133810+00:00"},{"claim":"The colony is commonly estimated at about 1.5 million bats during summer, with Bat Conservation International and Texas Parks and Wildlife both using that figure.","citation":"https://www.guinnessworldrecords.com/world-records/341447-largest-urban-bat-colony","source_title":"The Congress Avenue Bridge Bat Colony","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-14T18:35:09.133810+00:00"},{"claim":"The bridge became an ideal roost after renovation work in the early 1980s created narrow crevices beneath the deck.","citation":"https://www.guinnessworldrecords.com/world-records/341447-largest-urban-bat-colony","source_title":"The Congress Avenue Bridge Bat Colony","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-14T18:35:09.133810+00:00"},{"claim":"The bridge is a maternity colony where female bats raise roughly 750,000 pups each year.","citation":"https://www.guinnessworldrecords.com/world-records/341447-largest-urban-bat-colony","source_title":"The Congress Avenue Bridge Bat Colony","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-14T18:35:09.133810+00:00"},{"claim":"At dusk in warm months, the bats emerge in large streams, creating a major sunset viewing attraction in downtown Austin.","citation":"https://www.guinnessworldrecords.com/world-records/341447-largest-urban-bat-colony","source_title":"The Congress Avenue Bridge Bat Colony","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-14T18:35:09.133810+00:00"},{"claim":"The Congress Avenue Bridge in downtown Austin is home to the world's largest urban bat colony, commonly estimated at about 1.5 million Mexican free-tailed bats.","citation":"https://tpwd.texas.gov/huntwild/wild/species/bats/bat-watching-sites/congress-avenue-bridge.phtml","source_title":"The Congress Avenue Bridge Bat Colony","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-14T18:34:30.123233+00:00"},{"claim":"The bats roost under the bridge because a 1980s renovation unintentionally created deep, narrow crevices that provided ideal bat habitat.","citation":"https://tpwd.texas.gov/huntwild/wild/species/bats/bat-watching-sites/congress-avenue-bridge.phtml","source_title":"The Congress Avenue Bridge Bat Colony","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-14T18:34:30.123233+00:00"},{"claim":"The colony is a maternity colony, with female bats raising an estimated 750,000 pups each year at the bridge.","citation":"https://tpwd.texas.gov/huntwild/wild/species/bats/bat-watching-sites/congress-avenue-bridge.phtml","source_title":"The Congress Avenue Bridge Bat Colony","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-14T18:34:30.123233+00:00"},{"claim":"The bats are Mexican free-tailed bats, and their nightly emergences are a seasonal attraction usually visible from roughly March through October or early November, depending on weather and cold fronts.","citation":"https://tpwd.texas.gov/huntwild/wild/species/bats/bat-watching-sites/congress-avenue-bridge.phtml","source_title":"The Congress Avenue Bridge Bat Colony","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-14T18:34:30.123233+00:00"},{"claim":"The bridge bat flights are a major Austin tourism draw, with tens of thousands of visitors annually and substantial local economic impact.","citation":"https://tpwd.texas.gov/huntwild/wild/species/bats/bat-watching-sites/congress-avenue-bridge.phtml","source_title":"The Congress Avenue Bridge Bat Colony","source_type":"manual","allowed_use":"anecdote","retrieved_at":"2026-06-14T18:34:30.123233+00:00"},{"claim":"The bridge spans Lady Bird Lake in downtown Austin.","citation":"https://www.austincityguide.com/listings/congress-bridge-bats","source_title":"Congress Avenue Bridge - Austin Texas Guide","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-14T18:30:36.517501+00:00","fact_type":"location","as_of":"2026","confidence":0.96},{"claim":"The bat colony is estimated at 1.5 million Mexican free-tail bats.","citation":"https://www.austincityguide.com/listings/congress-bridge-bats","source_title":"Congress Avenue Bridge - Austin Texas Guide","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-14T18:30:36.517501+00:00","fact_type":"significance","as_of":"2026","confidence":0.9},{"claim":"Each night from around mid-March to early November, the bats emerge from under the bridge to forage for food.","citation":"https://www.austincityguide.com/listings/congress-bridge-bats","source_title":"Congress Avenue Bridge - Austin Texas Guide","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-14T18:30:36.517501+00:00","fact_type":"anecdote","as_of":"2026","confidence":0.9},{"claim":"Before the Longhorn Dam was completed in 1960, the bridge crossed the Colorado River; today it crosses Lady Bird Lake, which is impounded by the dam.","citation":"https://en.wikipedia.org/wiki/Ann_W._Richards_Congress_Avenue_Bridge","source_title":"Congress Avenue Bridge - Wikipedia","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-14T18:30:35.662703+00:00","fact_type":"history","as_of":"1960","confidence":0.94},{"claim":"Paid parking is available at the southeast end of the bridge near the Austin American-Statesman's Bat Observation Center.","citation":"https://www.austinbats.org","source_title":"Congress Ave. Bridge Bats - Austin Bats Watching Guide | Merlin Tuttle","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-14T18:30:34.764160+00:00","fact_type":"accessibility","as_of":"2026","confidence":0.92},{"claim":"The Hyatt Regency Hotel parking is less than 100 yards from the south end of the bridge.","citation":"https://www.austinbats.org","source_title":"Congress Ave. Bridge Bats - Austin Bats Watching Guide | Merlin Tuttle","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-14T18:30:34.764160+00:00","fact_type":"accessibility","as_of":"2026","confidence":0.88},{"claim":"City Hall parking is about four blocks northwest of the Congress Avenue Bridge.","citation":"https://www.austinbats.org","source_title":"Congress Ave. Bridge Bats - Austin Bats Watching Guide | Merlin Tuttle","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-14T18:30:34.764160+00:00","fact_type":"accessibility","as_of":"2026","confidence":0.85},{"claim":"The bridge is a maternity colony.","citation":"https://austinbatrefuge.org/congress-avenue-bridge/","source_title":"Congress Avenue Bridge - Austin Bat Refuge","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-14T18:30:33.872948+00:00","fact_type":"anecdote","as_of":"2025","confidence":0.98},{"claim":"There are three main spots to view the nightly bat emergences: on top of the bridge, below the south side, and below the north side.","citation":"https://austinbatrefuge.org/congress-avenue-bridge/","source_title":"Congress Avenue Bridge - Austin Bat Refuge","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-14T18:30:33.872948+00:00","fact_type":"accessibility","as_of":"2025","confidence":0.95},{"claim":"The south side viewing area is the refuge's favorite area to view the bats.","citation":"https://austinbatrefuge.org/congress-avenue-bridge/","source_title":"Congress Avenue Bridge - Austin Bat Refuge","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-14T18:30:33.872948+00:00","fact_type":"accessibility","as_of":"2025","confidence":0.89},{"claim":"The refuge estimated that between 80,000 and 100,000 bats overwintered at the bridge in fall migration 2025.","citation":"https://austinbatrefuge.org/congress-avenue-bridge/","source_title":"Congress Avenue Bridge - Austin Bat Refuge","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-14T18:30:33.872948+00:00","fact_type":"significance","as_of":"2025","confidence":0.83},{"claim":"A 1980 renovation transformed the Congress Avenue Bridge into an ideal bat cave.","citation":"https://www.austintexas.org/things-to-do/outdoors/bat-watching/","source_title":"Bats in Austin, TX | Bat Watching Tours & Information - AustinTexas.org","source_type":"official","allowed_use":"canonical_data","retrieved_at":"2026-06-14T18:30:32.992541+00:00","fact_type":"history","as_of":"1980","confidence":0.97},{"claim":"Migrating Mexican free-tailed bats soon began using the bridge.","citation":"https://www.austintexas.org/things-to-do/outdoors/bat-watching/","source_title":"Bats in Austin, TX | Bat Watching Tours & Information - 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Richards Congress Avenue Bridge is in the heart of downtown Austin.","citation":"https://www.batcon.org/7-tips-for-an-unforgettable-night-at-congress-avenue-bridge/","source_title":"7 Tips for an Unforgettable Night at Congress Avenue Bridge - Bat Conservation International","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-14T18:30:32.194105+00:00","fact_type":"location","as_of":"2026","confidence":0.99},{"claim":"It is home to the largest urban bat colony in the world, with an estimated 1.5 million Mexican free-tailed bats roosting under the bridge during the warm summer months.","citation":"https://www.batcon.org/7-tips-for-an-unforgettable-night-at-congress-avenue-bridge/","source_title":"7 Tips for an Unforgettable Night at Congress Avenue Bridge - Bat Conservation International","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-14T18:30:32.194105+00:00","fact_type":"significance","as_of":"2026","confidence":0.98},{"claim":"Nearly 750,000 pups are raised at the bridge each year.","citation":"https://www.batcon.org/7-tips-for-an-unforgettable-night-at-congress-avenue-bridge/","source_title":"7 Tips for an Unforgettable Night at Congress Avenue Bridge - Bat Conservation International","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-14T18:30:32.194105+00:00","fact_type":"anecdote","as_of":"2026","confidence":0.96},{"claim":"At dusk, visitors can watch bats stream out to patrol the city and surrounding farmlands for flying insects.","citation":"https://www.batcon.org/7-tips-for-an-unforgettable-night-at-congress-avenue-bridge/","source_title":"7 Tips for an Unforgettable Night at Congress Avenue Bridge - Bat Conservation International","source_type":"manual","allowed_use":"facts_with_citation","retrieved_at":"2026-06-14T18:30:32.194105+00:00","fact_type":"anecdote","as_of":"2026","confidence":0.95},{"claim":"The Ann W. Richards Congress Avenue Bridge is located in downtown Austin and hosts the largest urban bat colony in the world.","citation":"https://tpwd.texas.gov/huntwild/wild/species/bats/bat-watching-sites/congress-avenue-bridge.phtml","source_title":"Congress Avenue Bridge- Bat-Watching Sites of Texas - Texas Parks & Wildlife Department","source_type":"official","allowed_use":"canonical_data","retrieved_at":"2026-06-14T18:30:31.347463+00:00","fact_type":"location","as_of":"2026","confidence":0.99},{"claim":"The colony is estimated at 1.5 million bats.","citation":"https://tpwd.texas.gov/huntwild/wild/species/bats/bat-watching-sites/congress-avenue-bridge.phtml","source_title":"Congress Avenue Bridge- Bat-Watching Sites of Texas - Texas Parks & Wildlife Department","source_type":"official","allowed_use":"canonical_data","retrieved_at":"2026-06-14T18:30:31.347463+00:00","fact_type":"significance","as_of":"2026","confidence":0.95},{"claim":"It is a maternity colony, and female Mexican free-tailed bats raise an estimated 750,000 pups each year at the bridge.","citation":"https://tpwd.texas.gov/huntwild/wild/species/bats/bat-watching-sites/congress-avenue-bridge.phtml","source_title":"Congress Avenue Bridge- Bat-Watching Sites of Texas - 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