|Maintained by ALDOT|
|Length:||21.688 mi (34.903 km)|
|Existed:||1991 – present|
I-65 / US-72 Alt. / SR-20 in Decatur
|US-231 / US-431 in Huntsville|
US-72 / US-72 Alt. in Huntsville
I-565's connection with the rest of the Interstate system occurs at its western end, at an interchange with I-65. The interchange was extent prior to I-565's construction; it served Alabama State Route 20, which previously extended eastward into Huntsville. (The interchange was rebuilt and improved as part of the I-565 construction.) From the interchange, I-565 takes a brief northerly swing to bypass the town of Mooresville before joining and subsuming the former right of way of SR-20 through rural southeastern Limestone County. Progressing eastward, as the western edge of the city of Madison it diverges slightly to the south of the former SR-20 route, running parallel to it a short distance away. (This portion of the old SR-20 route is now named Madison Boulevard.)
Continuing east, I-565 passes through the southern part of Madison, rejoining the former SR-20 route near the Huntsville/Madison border. Here I-565 once again subsumes the old route's right of way as it travels along the south edge of Cummings Research Park and the University of Alabama in Huntsville campus, and the north edge of Redstone Arsenal. At Governors Drive, I-565 takes a slight turn northward away from the old route and continues through an area generally referred to as "West Huntsville". It interchanges with Memorial Parkway just south of University Drive, and then gradually curving towards the northeast, passes north of downtown Huntsville and through a former cotton mill district. At Oakwood Avenue, it subsumes what was once the easternmost half mile of Andrew Jackson Way, traveling over Chapman Mountain to its eastern terminus where it joins US-72.
After the completion of I-565, the SR-20 designation was removed from all remaining portions of the former route east of I-65.
When the Interstate Highway System was first laid out during the mid-1950s, Interstate 65 was routed on a north-south bee line connecting Nashville, Tenn., with Birmingham, Ala. This route passes just to the east of Decatur, which was a major river port on the Tennessee River at the time. Huntsville, however, was still a small town about twenty miles (32 km) to the east of I-65.
During the latter 1950s and all through the 1960s, Huntsville underwent massive population growth due to the establishment of the U.S. Army Missile Command at Redstone Arsenal, and the new NASA Marshall Space Flight Center. By 1960, Huntsville had grown to more than twice the size of Decatur. It became clear that an Interstate Highway spur route would be beneficial to connect Huntsville with I-65, and thence to the rest of the country. I-565 was chosen as the Federal Highway Administration's number for this proposed spur expressway. It was decided that rather than terminating at the western edge of Huntsville, I-565 would extend farther eastward, providing an east-west freeway for Huntsville. On the eastern edge of Huntsville, I-565 was designed to feed into U.S. Highway 72, which was being widened to a four-lane highway running from Huntsville to Kimball, Tenn., where it feeds into Interstate 24.
Construction of I-565 began in 1987, and the freeway was opened on October 26, 1991. By the time construction had begun, Huntsville had become one of the most populous cities in the contiguous United States without a freeway connection to the Interstate Highway System. Construction was performed in three phases. The first phase, opened in 1989, ran eastward from the town of Mooresville to exit 7 (which was originally constructed to serve as a terminus taking traffic between I-565 and SR-20). The second phase completed the interchange with I-65 and added exits 2 and 3 at the west end, and the east end was extended through the city of Madison to a temporary exit onto SR-20 at Slaughter Road. The third phase eliminated this temporary exit and extended 565 to its eastern terminus at US-72. A fourth phase, completed in 2010, slightly extended the east end and converted the connection with US-72 from an at-grade intersection into a full interchange.
When I-565 was first opened, it was signed as a north-south highway. This created some confusion because the highway runs roughly east–west. It was re-designated soon after opening. In 1996, the entirety of I-565 was designated the "Admiral Alan B. Shepard Highway" in honor of astronaut Alan Shepard.
Unlike many urban Interstate Highways which have a uniform speed limit of 55 miles per hour (89 km/h), I-565 has a speed limit of 70 mph (110 km/h), continuing well into the city. Just west of the interchange with Memorial Parkway, the speed limit steps down to 65 mph (105 km/h) and remains so for the entire portion east of this point.
Huntsville bus accident
On November 20, 2006, a school bus carrying high school students collided with another vehicle or swerved to avoid a collision and drove off an elevated off-ramp, falling nose-first approximately 30 feet (9.1 m) to the ground. Four teenage girls were killed in the accident.
Plans are currently in place to extend I-565 east several miles past the junction of U.S. Highway 72 along a newly upgraded freeway section of US 72 east of Huntsville. Construction could start on two new exits at Moores Mill Road and Shields Road by 2015. In Madison, as of the end of 2013, work is under way to create a full interchange at County Line Road; the work is expected to be complete by May 2015.  This is expected to provide significant relief to the Wall-Triana Highway interchange, which has become a traffic choke point during afternoon rush hour. An extension of 565 west, from the current terminus at I-65, along the route of Alabama Hwy. 20 and Alternate US 72 to its junction with U.S. Highway 31 near Decatur, is also planned. In January 2007, politicians in Northwestern Alabama announced that they would launch a campaign to extend I-565 westward to Florence. I-565 is part of a proposed highway that would connect Memphis, Tenn., with Atlanta. Ga., via Rome, Ga., and Chattanooga as part of ISTEA High Priority Corridor 7.
||This section contains a table that is missing mileposts for one or more junctions. Please help by .|
|Limestone||Decatur||0.000||0.000||—||SR-20 west (US-72 Alt. west) – Decatur||Westbound exit and eastbound entrance|
|Decatur–Huntsville city line||0.000||0.000||1||I-65 – Birmingham, Nashville||Signed as exits 1A (south) and 1B (north) eastbound|
|7||Madison Boulevard, County Line Road (currently closed)||Eastbound exit and westbound entrance; former SR-20 east. As of January 2014, this exit is temporarily closed; it will be reconfigured as part of the County Line Road interchange work.|
|Madison||8||Huntsville International Airport|
|Madison||9||Wall-Triana Highway, Madison Boulevard|
|Huntsville||13.059||21.016||13||Madison Boulevard||Westbound exit and eastbound entrance; former SR-20 west|
|14.365||23.118||14||SR-255 north (Research Park Boulevard) – Redstone Arsenal Gate 9||Signed as exits 14A (Gate 9) and 14B (SR-255) westbound|
|15||Madison Pike, Sparkman Drive, Bob Wallace Avenue||Entrance to U.S. Space and Rocket Center|
|17.015||27.383||17A||SR-53 north (Jordan Lane) to US-72||Signed as exit 17 westbound|
|17.381||27.972||17B||SR-53 south (Governors Drive)||Eastbound exit and westbound entrance|
|19.057||30.669||19A||US-231 / US-431 (Memorial Parkway, SR-1)||Eastbound exit and westbound entrance; signed as exits 19A (south) and 19B (north)|
|19.057||30.669||19B||US-231 / US-431 (Memorial Parkway, SR-1) / Pratt Avenue west, Washington Street north||Westbound exit and eastbound entrance|
|19C||Washington Street, Jefferson Street – Downtown||Signed as exit 19A westbound|
|20||Oakwood Avenue, Andrew Jackson Way|
|21.688||34.903||21||US-72 west (SR-2 west)|
|21.688||34.903||—||US-72 east (SR-2 east)||Eastbound exit and westbound entrance|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi
- "County Milepost Maps". Alabama Department of Transportation. Retrieved June 28, 2011.
- United States Census Bureau. "Ranking Tables for Metropolitan Areas: Population in 2000 and Population Change from 1990 to 2000 (PHC-T-3)". Retrieved 14 February 2014. Per Table 1, in 1990 the Fresno, California Metropolitan Statistical Area (MSA )had greater population than the Huntsville MSA. Fresno did not have Interstate service in 1990 and still does not as of February 2014. The Huntsville MSA may have been the second-largest, but the complete table has not been analyzed.
- "Confusing signs to be changed". The Gadsden Times. December 18, 1991. Retrieved December 30, 2011.
- Faulk, Ken (November 21, 2006). "Bus crash kills 3 students". The Birmingham News. Retrieved November 26, 2006.
- McCarter, Patricia C. (November 21, 2006). "15 still hospitalized after horrific crash; parents beg for info". The Huntsville Times. Retrieved November 26, 2006.
- "Fourth teen dies in Alabama school bus crash". CNN.com. November 21, 2006. Retrieved November 26, 2006.
- Clines, Keith (13 December 2011). "Change of plans for U.S. 72 project at Moores Mill, Shields roads". The Huntsville Times. Retrieved 25 August 2012.
- WHNT-TV. "Ground Broken on New Interchange". Retrieved 29 December 2013.
- Delinski, Bernie (January 21, 2007). "Officials discussing I-565 spur to Shoals". TimesDaily. Retrieved June 28, 2011.
- "U.S. 72 (Corridor 7)". AARoads. January 31, 2003. Retrieved January 1, 2010.
- Clines, Keith (April 27, 2012). "I-565 exit numbers changed for County Line Road, airport, Wall Triana Highway". The Huntsville Times. Retrieved April 27, 2012.
- Clines, Keith (September 18, 2011). "Speed limit sign mix-up on Chapman Mountain to be corrected". The Huntsville Times. Retrieved September 18, 2011.