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I-10 West / Katy Freeway Access Ramps

HOV I-10 Map

Katy Freeway Managed Lanes and Katy Diamond Lanes

The Managed Lanes are operated by the Harris County Toll Road Authority.
Learn more about Katy Freeway Managed Lanes >>

To Report Lane Violations On Katy Managed Lanes and Katy Diamond Lanes
Between IH 610 and SH 6, or to report Diamond lane violations on Katy between Hwy 6 and Grand Parkway 99, contact:

Harris County Toll Road Authority
Communications Department
713-587-7806
katymanagedlanes@hctra.org

 
HOV I-10 Katy Instruction 1 HOV I-10 Katy Instruction 2
1. Access from Franklin St. under IH-45 overpass in Downtown. 2. Access from IH-10 Eastbound main lanes East of Studewood via Slip Ramp to Downtown.
 
HOV I-10 Katy Instruction 10-12
3. Access to diamond lane from outbound main lanes between Hwy. 6 and Park 10 
 
HOV I-10 Katy Instruction 3
4. Access to Diamond Lane from inbound main lanes between Grand Pkwy. (SH-99) and Westgreen.   
5. Access to Diamond Lane from outbound Main lanes between Barker Cypress and Fry Rd.  
6. Access to Diamond Lanes from inbound main lanes between Westgreen and Greenhouse Rd.