List of highways in Harris County, Texas

The following is a list of all state highways in Harris County, Texas maintained by the Texas Department Of Transportation. All state highways in Texas are paved.

Interstate Highways

Route Name	Direction	Termini	Junctions	Length	Remarks
I-10	E/W	Chambers County to Fort Bend County	SH 146 Beltway 8 Interstate 610 US 59 Interstate 45 SH 6 SH 99	Approximately 56 miles (90.1 km)	East of I-45 known locally as East Freeway. West of I-45 known locally as Katy Freeway.
I-45	S/N	Galveston County to Montgomery County	NASA Road 1 Beltway 8 SH 3 Interstate 610 US 59 Interstate 10 SH 249	Approximately 45 mi (72.4 km)	South of US 59 known locally as Gulf Freeway. Portion between US 59 and I-10 known locally as Pierce Elevated. North of I-10 known locally as North Freeway.
I-610	Orbital	Officially designated from Interstate 10 east of downtown Houston, going counterclockwise.	US 90 Hardy Toll Road Interstate 45 US 290 Interstate 10 US 59 Alternate US 90 SH 288 SH 35 SH 225	37.972 mi (61.11 km)	Known locally as "The Loop".

U.S. Highways

Route Name	Direction	Termini	Junctions	Length	Remarks
US 59	S/N	Fort Bend County to Montgomery County	Beltway 8 Westpark Tollway Interstate 610 SH 288 Interstate 45 Interstate 10	Approximately 35 miles (56.32 km)	South of SH 288 known locally as Southwest Freeway. North of SH 288 known locally as Eastex Freeway.
US 90	E/W	Liberty County to Interstate 10	FM 2100 Beltway 8	Approximately 13.5 miles (21.7 km)	Freeway portion from Crosby to Beltway 8 known locally as Crosby Freeway. Known locally as Beaumont Highway. Officially US 90 follows I-10 after junction, but it is unsigned. US 90 signage restarts in Katy.
Alternate US 90	N/S	Interstate 10 to Fort Bend County	Interstate 45 SH 288 Interstate 610 Fort Bend Parkway Toll Road Beltway 8	Approximately 20 miles (32 km)	Known locally as South Wayside Drive north of I-45, Old Spanish Trail between I-45 and Main Street west of SH 288, and South Main Street to Fort Bend County Line. US 90A south of Holmes Road is a limited-access parkway.
US 290	E/W	I-610 to Waller County	Beltway 8 SH 6	Approximately 33 miles (53.1 km)	Known locally as Northwest Freeway.

State Highways

Route Name	Direction	Termini	Junctions	Length	Remarks
SH 3	S/N	Galveston County to Interstate 45	NASA Road 1 Beltway 8	Approximately 8 miles (13.2 km)	Known locally as Old Galveston Road.
SH 6	S/N	Fort Bend County to Waller County	Westpark Tollway FM 1093 US 290 FM 1960	Approximately 30 miles (48.3 km)	Overlaps US 290 after its junction, which it follows out of the county.
SH 35	N/S	I-45 to Brazoria County	Beltway 8	Approximately 6 miles (9.7 km)	Known locally as Telephone Road.
SH 99	S/N	Fort Bend County to Franz Road in Katy	Interstate 10	Less than 2 miles (3.2 km)	SH 99 is part of a proposed third freeway-grade loop around Greater Houston known as the Grand Parkway. Proposed as part of Interstate 69 expansion.
SH 146	S/N	Galveston County to Chambers County	NASA Road 1 SH 225 Interstate 10	Approximately 16 miles (25.75 km)	Known in Baytown as Bob Lanier Freeway. Toll bridge over the Houston Ship Channel called the Fred Hartman Bridge.
SH 225	E/W	SH 146 to just west of Interstate 610	Beltway 8 Interstate 610	15.6 (25.1 km)	Known in Houston as La Porte Freeway and in Pasadena as Paasadena Freeway.
SH 249	S/N	Interstate 45 to Montgomery County	Beltway 8 FM 1960	Approximately 22 miles (35.4 km)	Portion from Beltway 8 to just south of Tomball is a freeway. Highway and freeway may possibly be expanded to SH 6 in Navasota.
SH 288	N/S	US 59 to Brazoria County	Alternate US 90 Interstate 610 Beltway 8	Approximately 8 miles (12.9 km)	Known locally as South Freeway.

State Highway Loops and Spurs

Route Name	Direction	Termini	Junctions	Length	Remarks
Beltway 8	Orbital	Officially designated from Interstate 45 north of downtown Houston, going clockwise.	Hardy Toll Road US 59 US 90 Interstate 10 SH 225 SH 3 Interstate 45 SH 35 SH 288 Alternate US 90 Westpark Tollway FM 1093 US 290 SH 249	83.128 miles (133.8 km)	Secondary loop of metro Houston, with a radius from downtown Houston of AbOUT 8 miles. Main lanes are part of the Sam Houston Tollway while Beltway 8 comprises the service lanes. Section between Interstate 45 and US 59 is a freeway.
Spur 5	N/S	Dowling Street in downtown Houston to Alternate US 90		2.929 miles (4.713 km)	Runs concurrent with Interstate 45 from south of downtown to Exit 44B. Freeway grade from Downling Street to University Drive. Proposed future corridor for a new SH 35 freeway.
Spur 261	N/S	Interstate 45 to Interstate 610		4.611 miles (7.421 km)	Known locally as North Shepherd Dr.
Spur 330	S/N	Garth Road in Baytown to Interstate 10		0.863 miles (1.39 km)	Short freeway-grade connector serving Baytown. Known locally as Decker Dr.
Spur 527	S/N	US 59 to Westheimer Road in Houston		0.863 miles (1.39 km)	Short freeway-grade connector serving Midtown neighborhood.

Toll Roads

All Harris County toll roads are maintained by the Harris County Toll Road Authority.

Route Name	Direction	Termini	Junctions	Length	Remarks
Sam Houston Tollway	Orbital	Interstate 10 east of Houston clockwise to Interstate 45 north of Houston	SH 225 SH 3 Interstate 45 SH 35 SH 288 Fort Bend Parkway Toll Road Alternate US 90 US 59 Westpark Tollway Interstate 10 US 290 SH 249		Main lane portion of Beltway 8 secondary loop. The remaining portion of the loop is free.
Hardy Toll Road	S/N	Interstate 610 to Interstate 45	Beltway 8 FM 1960	21.6 miles (34.8 km)	Runs parallel to Interstate 45. Possible future expansion south to Interstate 10.
Westpark Tollway	E/W	Westpark Drive in Houston to Fort Bend County	Beltway 8 SH 6	14 miles (22.53 km)	Runs parallel to Westheimer Road. Possible future expansion east to Interstate 610.
Fort Bend Parkway Toll Road	E/W	Alternate US 90 to Fort Bend County	Beltway 8	Approximately 2 miles (3.2 km)	Runs along Hillcroft Avenue. Possible future expansion north to Interstate 610. Formerly part of SH 122 project.

Farm and Ranch to Market Roads

Route Name	Direction	Termini	Junctions	Length	Remarks
FM 270	N/S	NASA Road 1 to Galveston County		0.3 mi (0.48 km)	Known locally as Egret Bay Blvd.
FM 362	W/E	Waller County back to Waller County		0.6 mi (1 km)	Concurrent with FM 1488 in very northwest corner of county.
FM 525	E/W	US 59 to Interstate 45		7.054 (11.35 km)	Known locally as Aldine-Bender Rd.
FM 526	S/N	I-10 to US 90		4.625 miles (7.443 km)	Known locally as Maxie Rd.
FM 528	E/W	Interstate 45 to Brazoria County		Approximately 0.5 miles (0.8 km)	Known locally as Friendswood Blvd.
FM 529	E/W	US 290 to Waller County	SH 6	Approximately 17 miles (27.43 km)	Sometimes referred to as Spencer Blvd.
FM 865	N/S	Alternate US 90 to Brazoria County	Interstate 610 Beltway 8	Approximately 9.5 miles (15.2 km)	Known locally as Cullen Blvd.
FM 1092	N/S	US 59 to Fort Bend County		Approximately 0.2 mi (0.3 km)	Known locally as Murphy Road
FM 1093	E/W	Interstate 610 to Fort Bend County	Beltway 8 SH 6	Approximately 13.9 miles (22.39 km)	Known locally as Westheimer Rd.
FM 1488	W/E	Waller County back to Waller County		0.6 mi (1 km)	Concurrent with FM 362 in very northwest corner of county.
FM 1736	N/S	Waller County back to Waller County		0.5 mi (0.8 km)	Runs in very northwest corner of county.
FM 1876	N/S	Bellaire Blvd. in Alief to Fort Bend County		2.2 miles (3.54 km)	Known locally as Synott Rd.
FM 1942	E/W	Chambers County to US 90		8.4 miles (13.52 km)	Known locally as Crosby-Cedar Bayou Rd.
FM 1959	W/E	Interstate 45 to Texas 3		1.339 miles (2.155 km)	Known locally as Dixie Farm Rd.
FM 1960	W/E	US 290 to Liberty County	SH 249 Interstate 45 Hardy Toll Road US 59	Approximately 39 miles (62.7 km)	Long thoroughfare through northern suburbs of Houston.
FM 2100	S/N	US 90 to FM 1485	FM 1960 US 90/Crosby Freeway Business US 90-U	14.285 miles (23 km)	Known locally as Crosby-Huffman Rd.
FM 2351	W/E	Galveston County to SH 3	Interstate 45	Approximately 1 mile (1.6 km)	Known locally as Edgewood Dr.
FM 2553	W/E	Interstate 45 to SH 3		1.152 mi (1.85 km)	Known locally as Scarsdale Blvd.
FM 2920	W/E	Business US 290 to Interstate 45	SH 249	30.849 km (49.65 km)	Sometimes referred to as Waller-Tomball Road.
FM 2978	S/N	FM 2920 to Montgomery County		Approximately 3.5 miles (5.63 km)	Known locally as Huffsmith-Conroe Rd.

Adjacent counties

Montgomery County (north)
Liberty County (northeast)
Chambers County (east)
Galveston County (southeast)
Brazoria County (south)
Fort Bend County (southwest)
Waller County (northwest)