I-10 West / Katy Freeway Access Ramps
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
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
3. Access to diamond lane from outbound main lanes between Hwy. 6 and Park 10
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 Greenhouse Rd.
6. Access to Diamond Lanes from inbound main lanes between Westgreen and Greenhouse Rd.