Colorado River

A listing of bridges over the Colorado River in Texas. Skip to bridges in the Austin area or in other areas.

Austin AreaOther Areas

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Colorado River Bridge

Union Pacific Railroad

The Union Pacific Railroad Bridge over the Colorado River in Austin was constructed in 1936.


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Low Water Crossing

Formerly part of TX Ranch to Market Road 620

The low water crossing over the Colorado River for TX Ranch to Market Road 620 in Travis County west of Austin was constructed in 1938. The concrete tee-beam bridge was bypassed in 1942 with the now-closed Mansfield Dam Road crossing.


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Pennybacker Bridge

TX Loop 360

The Pennybacker Bridge carries TX Loop 360, also known as the Capital of Texas Highway, across Lake Austin and the Colorado River in Austin, Texas. It is named for Percy Pennybacker who designed bridges for the Texas Highway Department and who was a pioneer in the technology of welded structures.


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Pfluger Bridge

Pfluger Bridge is a pedestrian and bicycle crossing of Lady Bird Lake in Austin. It connects downtown to Auditorium Shores and Butler Park.


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South 1st Street Bridge

The South 1st Street Bridge in Austin spans Lady Bird Lake and was constructed in 1951. The crossing was last rehabilitated in 1992.


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South Congress Avenue Bridge

The South Congress Avenue Bridge in Austin spans Lady Bird Lake. It is the fourth iteration of a bridge at that site, and is home to the largest summer colony of Mexican free-tailed bats in the world.


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South Lamar Boulevard Bridge

TX Loop 343

The South Lamar Boulevard Bridge in Austin, Texas spans Lady Bird Lake and the open spandrel arch bridge is listed on the National Register of Historic Places.

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Buchanan Dam Bridge

Formerly TX 29

The Buchanan Dam Bridge is located along former TX 29 and crosses the Colorado River between Burnet and Llano counties. It was bypassed in 2003 and the crossing is now open to pedestrians.


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Mansfield Dam Road

Formerly TX Ranch to Market Road 620

Mansfield Dam Road was formerly designated TX Ranch to Market Road 620 and is located in Travis County, Texas west of Austin. The highway crosses the Colorado River via the Mansfield Dam. It was bypassed in 1995 and closed to traffic in 2001.


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Marble Falls Bridge

US 281

The Marble Falls bridge over the Colorado River carried US 281 and was constructed in 1936. A replacement bridge opened in 2014.


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TX Ranch to Market Road 620 Bridge

The TX Ranch to Market Road 620 Bridge over the Colorado River in Travis County west of Austin was constructed in 1995. The four-lane highway bypassed the now-closed Mansfield Dam Road crossing.