List of highways in Harris County, Texas

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-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".

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.

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.

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 35

N/S

I-45 to Brazoria County

Beltway 8

Approximately 6 miles (9.7 km)

Known locally as Telephone Road.

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 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.

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 261

N/S

Interstate 45 to Interstate 610

4.611 miles (7.421 km)

Known locally as North Shepherd 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.

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.

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.

FM 270

N/S

NASA Road 1 to Galveston County

0.3 mi (0.48 km)

Known locally as Egret Bay Blvd.

FM 525

E/W

US 59 to Interstate 45

7.054 (11.35 km)

Known locally as Aldine-Bender Rd.

FM 528

E/W

Interstate 45 to Brazoria County

Approximately 0.5 miles (0.8 km)

Known locally as Friendswood 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 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 1736

N/S

Waller County back to Waller County

0.5 mi (0.8 km)

Runs in very northwest corner of county.

FM 1942

E/W

Chambers County to US 90

8.4 miles (13.52 km)

Known locally as Crosby-Cedar Bayou 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 2351

W/E

Galveston County to SH 3

Interstate 45

Approximately 1 mile (1.6 km)

Known locally as Edgewood Dr.

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.