List of state highways in Louisiana (800–849)
The following is a list of state highways in the U.S. state of Louisiana designated in the 800–849 range. Louisiana Highway 800. Louisiana Highway 800 (LA 800) ran in a north–south direction from the intersection of two local roads to a junction with LA 163 south of Doyline. The route is now part of LA 527. Louisiana Highway 801. Louisiana Highway 801 (LA 801) ran in a north–south direction from LA 166 south of Doyline to LA 163 in Doyline. Louisiana Highway 802. Louisiana Highway 802 (LA 802) runs in an  east–west direction from US 371 south of Cullen to LA 2 northeast of Sarepta. Louisiana Highway 803. Louisiana Highway 803 (LA 803) currently consists of one road segment with a total length of that is located in the Webster Parish city of Springhill. Two of the original three segments, which existed in Springhill and the adjacent town of Cullen, have been deleted from the state highway system. Louisiana Highway 804. Louisiana Highway 804 (LA 804) ran in an east–west direction from the concurrent US 79/US 80 to a second junction with US 80 in Minden. Louisiana Highway  805. Louisiana Highway 805 (LA 805) runs in a north–south direction from the concurrent LA 154/LA 518 to LA 9 in Athens. Louisiana Highway 806. Louisiana Highway 806 (LA 806) runs in a north–south direction along Arizona Road from Robinson Lane to a junction with LA 2 east of Homer. The route's mileposts increase from the northern end contrary to common practice. Louisiana Highway 807. Louisiana Highway 807 (LA 807) runs in a north–south direction from LA 2 Alt. to a point near Holly Circle in Haynesville. Louisiana Highway 808. Louisiana Highway 808 (LA 808 ) runs in a general east–west direction from LA 615 northeast of Shongaloo, Webster Parish to a second junction with LA 615 in Haynesville, Claiborne Parish. Louisiana Highway 809. Louisiana Highway 809 (LA 809) ran in an east–west direction along Siloam Church Road from LA 505 to the Siloam Springs Methodist Church south of Jonesboro. Louisiana Highway 810. Louisiana Highway 810 (LA 810) runs in an east–west direction from LA 505 east of Jonesboro to LA 34 south of Chatham. Louisiana Highway 811. Louisiana Highway 811 (LA 811) runs in a southeast to northwest direction from LA 4  east of Jonesboro to US 167 north of Hodge. Louisiana Highway 812. Louisiana Highway 812 (LA 812) ran in an east–west direction along Zion Rest Road from LA 811 to the Zion Rest Primitive Baptist Church east of Jonesboro. Louisiana Highway 813. Louisiana Highway 813 (LA 813) currently consists of one road segment with a total length of that is located in and near the Jackson Parish village of Hodge. Two of the original three segments, which existed in the nearby town of Jonesboro, have been deleted from the state highway system. Louisiana Highway 814. Louisiana Highway 814 (LA  814) ran in a northwest to southeast direction from LA 4 to a local road southeast of Chatham. Louisiana Highway 815. Louisiana Highway 815 (LA 815) runs in an east–west direction from LA 147 to LA 507 southeast of Simboro. Louisiana Highway 816. Louisiana Highway 816 (LA 816) ran in a northwest to southeast direction from LA 563 south of Simsboro to a local road southwest of Grambling. Louisiana Highway 817. Louisiana Highway 817 (LA 817) currently consists of one road segment with a total length of that is located in the Lincoln Parish village of Simsboro. Two of  the original three segments have been deleted from the state highway system. Louisiana Highway 818. Louisiana Highway 818 (LA 818) runs in a north–south direction from the junction of US 167 and LA 148 at Clay, Jackson Parish to LA 150 in Ruston, Lincoln Parish. A spur described in the official route description became LA 3012. Louisiana Highway 819. Louisiana Highway 819 (LA 819) consists of five road segments with a total length of that are located in the Lincoln Parish village of Choudrant. Louisiana Highway 820. Louisiana Highway 820 (LA 820) runs in a north–south direction from  LA 145 in Choudrant to the concurrent LA 33/LA 822 at Cedarton. Louisiana Highway 821. Louisiana Highway 821 (LA 821) runs in an east–west direction from LA 33 north of Ruston to LA 145 in Sibley. Louisiana Highway 822. Louisiana Highway 822 (LA 822) runs in a general east–west direction from LA 146 northwest of Vienna to LA 145 in Downsville. Louisiana Highway 823. Louisiana Highway 823 (LA 823) runs in an east–west direction from LA 151 to the Lincoln–Union parish line northeast of Dubach. Louisiana Highway 824. Louisiana Highway 824 (LA 824) consists of  three road segments with a total length of that are located in the Lincoln Parish town of Dubach. Louisiana Highway 825. Louisiana Highway 825 (LA 825) ran in a north–south direction from LA 15 in Spearsville to the Arkansas state line east of Junction City. The route had a spur that ran from LA 15 and LA 825 eastward to the Spearsville school. Louisiana Highway 826. Louisiana Highway 826 (LA 826) runs in an east–west direction from LA 33 to the junction of two local roads north of Marion. Louisiana Highway 827. Louisiana Highway 827 (LA 827) runs  in an east–west direction from LA 143 in Marion to the junction of two local roads at Dean. Louisiana Highway 828. Louisiana Highway 828 (LA 828) runs in an east–west direction from the Farmerville corporate limits to a junction with LA 2 east of Farmerville. The route formerly extended west into Farmerville to a junction with LA 33, but this mileage was transferred to local control in 2019 as part of the La DOTD's Road Transfer Program. Louisiana Highway 829. Louisiana Highway 829 (LA 829) ran in an east–west direction from a local road west of  Humphreys to a junction with LA 142 northwest of Beekman. Louisiana Highway 830. Louisiana Highway 830 (LA 830) consists of six road segments with a total length of that are located in the Morehouse Parish city of Bastrop. One of the original five routes was deleted soon after the 1955 renumbering, and two more have since been added. Louisiana Highway 831. Louisiana Highway 831 (LA 831) ran in a general east–west direction from the junction of LA 139 and LA 554 west of Collinston to LA 138 southwest of Collinston. Louisiana Highway 832. Louisiana Highway 832 (LA 832) ran  in an east–west direction from US 165 to LA 599 south of Bonita. Louisiana Highway 833. Louisiana Highway 833 (LA 833) runs in a southwest to northeast direction along Jones Cutoff Road from LA 140 west of Bonita to US 165 in Jones. Louisiana Highway 834. Louisiana Highway 834 (LA 834) runs in an east–west direction, primarily along Hopkins Hill Road, from LA 591 west of Jones to the junction of US 165 and LA 835 in Jones. The route initially heads due east from LA 591. After , it begins a winding path that soon follows the north  side of Bayou Bartholomew. Near the end of its route, LA 834 crosses the bayou and turns to the southeast toward the community of Jones. Here, the highway turns sharply to the east, immediately crossing the Union Pacific Railroad (UP) tracks at grade and intersecting US 165. The road continues eastward across US 165 as LA 835 toward Kilbourne. LA 834 is an undivided two-lane highway for its entire length. Louisiana Highway 835. Louisiana Highway 835 (LA 835) runs in an east–west direction from the junction of US 165 and LA 834 in Jones, Morehouse Parish to LA  585 southwest of Kilbourne, West Carroll Parish. Louisiana Highway 836. Louisiana Highway 836 (LA 836) ran in a northwest to southeast direction from US 165 north of Jones to LA 835 east of Jones. Louisiana Highway 837. Louisiana Highway 837 (LA 837) runs in a general southeast to northwest direction from LA 151 at Carlton to a second junction with LA 151 at Pleasant Valley. Louisiana Highway 838. Louisiana Highway 838 (LA 838) runs in an east–west direction along New Natchitoches Road from LA 546 northeast of Cadeville to LA 617 south of West Monroe. The route heads northeast  from LA 546 and parallels it for several miles. It then turns east as it nears the Kansas City Southern Railway (KCS) tracks. Near the end of its route, LA 838 intersects LA 3033 (Washington Street), after which it proceeds due east a short distance to an intersection with LA 617 (Thomas Road) just outside the corporate limits of West Monroe. LA 838 is an undivided two-lane highway for its entire length. Louisiana Highway 839. Louisiana Highway 839 (LA 839) ran in a north–south direction from a local road at the Caldwell–Ouachita parish line to a junction  with LA 557 at Luna. Louisiana Highway 840. Louisiana Highway 840 (LA 840) currently consists of two road segments with a total length of that are located in and near the adjacent Ouachita Parish cities of Monroe and West Monroe. Four of the original six segments have been deleted from the state highway system. Louisiana Highway 841. Louisiana Highway 841 (LA 841) runs in a north–south direction along Prairie Road from US 165 to LA 15 south of Monroe. Louisiana Highway 842. Louisiana Highway 842 (LA 842) ran in a north–south direction from US 165 south of Kelly  to LA 506 in Kelly. Louisiana Highway 843. Louisiana Highway 843 (LA 843) runs in a north–south direction from LA 124 east of Olla, LaSalle Parish to LA 506 in Kelly, Caldwell Parish. The route's mileposts increase from the northern end contrary to common practice. The route from its intersection with US-165 to its Southern terminus at LA-124 is set to be deleted (transferred to local government) under Louisiana DOTD's "right-sizing" program. Louisiana Highway 844. Louisiana Highway 844 (LA 844) runs in a southwest to northeast direction from US 165 south of Clarks to a second  junction with US 165 between Clarks and Grayson. Louisiana Highway 845. Louisiana Highway 845 (LA 845) runs in a north–south direction from LA 547 in Clarks to LA 126 west of Grayson. Louisiana Highway 846. Louisiana Highway 846 (LA 846) runs in a general north–south direction from a local road northwest of Mount Pleasant to the Caldwell–Ouachita parish line. Under the Louisiana DOTD's "right-sizing" program, the first 5.566 miles of the route (from Countrywood Drive to LA-4) is set to be deleted and transferred to the local government. Louisiana Highway 847. Louisiana Highway 847 (LA  847) runs in an east–west direction from US 165 north of Columbia to LA 133 northwest of Hebert. Louisiana Highway 848. Louisiana Highway 848 (LA 848) runs in a north–south direction from a local road southeast of Hebert to a junction with LA 561 in Hebert. The route's mileposts increase from the northern end contrary to common practice. The entire route is set to be deleted and transferred to local control as part of the Louisiana DOTD's "right-sizing" program. Louisiana Highway 849. Louisiana Highway 849 (LA 849) runs in a general north–south direction from  LA 506 east of Kelly to US 165 south of Columbia. Under the Louisiana DOTD's "right-sizing" program, the Southern end (the first 3.181 miles) of the route is set to be deleted and transferred to local control.