List of Houston highways

Interstate 10 - Interstate 45 interchange northwest of downtown Houston.

This is a list of highways in the Houston–Sugar Land–Baytown metropolitan area.

[edit] Freeways

Designation	Common Name	Year of First Freeway Section^[1]	Maximum width: mainlanes (HOV)^[2]	Maximum Traffic Count, 2001 (AADT)^[3]	Maximum Traffic Count, 2006 (AADT)^[4]
Spur 5	Alvin Freeway	1988	6	54,240	39,000
I-10 (Interstate Highway 10)	Baytown-East Freeway	1953	8	225,640	189,000
US 90 (U.S. Highway 90)	Crosby Freeway	1991	6	31,090	31,000
Spur 330	Decker Drive	2001	6	32,890	42,000
US 59 (U.S. Highway 59)	Eastex Freeway	1953	10(1)	211,860	225,000
FM 1764 (Farm to Market Road 1764)	Emmett F. Lowry Expressway		4	48,050	43,000
Fort Bend Toll Road	Fort Bend Toll Road/Fort Bend Parkway Toll Road	2004	4
SH 146 State Highway 146	Fred Hartman Bridge	1996	8	74,670	71,000
SH 99 State Highway 99	Grand Parkway	1994	4	36,200	42,000
I-45 Interstate Highway 45	Gulf Freeway	1948	8(1)	269,570	266,000
Hardy Toll Road	Hardy Toll Road	1987	6	59,220
I-10 Interstate Highway 10	Katy Freeway	1956	10(2)	238,520	246,000
SH 225 State Highway 225	La Porte Freeway	1966	8	152,780	129,000
I-610 Interstate Highway 610	South, West, North and East Loop	1952	10	293,460	288,000
I-45 Interstate Highway 45	North Freeway	1959	10(1)	291,470	310,000
US 290 U.S. Highway 290	Northwest Freeway	1975	8(1)	262,970	243,000
Beltway 8 Sam Houston Tollway	Beltway 8/Sam Houston Tollway	1982	8	202,900
SH 288 State Highway 288	South Freeway	1980	8	178,490	185,000
US 59 U.S. Highway 59	Southwest Freeway	1961	12(1)	379,550	333,000
Spur 527	The Downtown Split^[5]	1961	6*	93,410	67,000
SH 249 State Highway 249	Tomball Parkway	1990	8	119,780	151,000
Westpark Tollway	Westpark Tollway/Fort Bend Westpark Tollway	2004	4

Fairmont/Red Bluff Freeway - planned from State Highway 146 southeast of Houston to Beltway 8. Only frontage roads have been built.
NASA 1 - NASA Road 1 Bypass - short bypass to the south of NASA Road 1 in Webster.
SH 99 - Sections A, B, C, E, F1, F2, G, H, and I-1 of Grand Parkway are in various stages of the planning process.
Spur 5 - Alvin Freeway - south-southeast of downtown. This freeway is planned to be built from its present southern terminus at Old Spanish Trail to south of Beltway 8.
Fort Bend Toll Road - The Fort Bend Parkway Toll Road is planned to eventually be extended from its northern terminus at US 90A to the southwest corner of the 610 Loop.
Hardy Toll Road - The Hardy Toll Road is planned to be extended from its southern terminus at the North Loop to Downtown Houston.
US 90 - U.S. Highway 90 will eventually be expanded from its terminus at Beltway 8 down to the IH-10 Baytown East Freeway/IH-610 East Loop Interchange.
Fort Bend Westpark Tollway - The Fort Bend section of the Westpark Tollway will eventually be extended west to the growing suburb of Fulshear. It will then turn north and end at IH-10 around Pederson Road.^{[citation needed]}

Allen Parkway - Between I-45 and Shepherd Drive, a distance of 2.3 miles (3.7 km), Allen Parkway is a limited access parkway.
Grand Parkway - Parts of section D (south of the Westpark Tollway) are not up to full freeway standards but will be in the future.
Memorial Drive - From Houston Street to just west of Shepherd Drive, a distance of 2.3 miles (3.7 km), Memorial Drive is a limited-access parkway with exits at Heights Blvd./Waugh Drive and Shepherd Drive.
U.S. Highway 90 Alternate — South Main Street — south-southwest of downtown from I-610 to near the Sam Houston Tollway.

U.S. Highway 90 Alternate is currently under construction to add freeway lanes between the Sam Houston Tollway and the city of Sugar Land.

I-69 - (Interstate 69) will eventually go through Houston on the same route as US 59. US 59 will then be renamed through Houston.^{[citation needed]}

^ HoustonFreeways.com Erik Slotboom, 2003. Last accessed December 23, 2006.
^ Mapquest Satellite images. Last accessed December 23, 2006.
^ [1]. Houston Galveston Area Council Traffic Counts. 2001. Last accessed December 23, 2006.
^ [2]. Texas Department of Transportation. 2006. Last accessed March 25, 2008.
^ A Guide to Traffic and Reconstruction of Spur 527. southwestcorridor.com Last accessed January 2, 2007.