 | Northbound Frontage Road from Northbound Frontage Rd to Southbound Frontage Rd in La Marque | 1 U-Turn Lane | Closed until further notice | All traffic shall perform a left turn at the intersection to reach the southbound frontage road. |  |
 | Northbound from NASA Bypass to FM-518 in Webster/League City | 1 Inside Lane(s) | Closed continuously until 5:00 AM, Monday, March 27 | No detour required. Two lanes will be open to traffic. |  |
 | Northbound and southbound from FM-518 to FM-517 in League City | 1 Alternate Lane(s) | Closed daily from 9:00 AM to 3:00 PM through Saturday, September 30 | |  |
 | Northbound and southbound Frontage Road from FM-518 to FM-517 in League City | 1 Alternate Lane(s) | Closed daily from 9:00 AM to 3:00 PM through Saturday, September 30 | |  |
 | Northbound and southbound Frontage Road from FM-518 to FM-517 in League City | 1 Alternate Lane(s) | Closed nightly 9:00 PM to 5:00 AM through the morning of Saturday, September 30 | |  |
 | Northbound and southbound from FM-518 to FM-517 in League City | 1 Alternate Lane(s) | Closed nightly 9:00 PM to 5:00 AM through the morning of Saturday, September 30 | Closures may, intermittently, affect two (2) lanes. This work will include alternate entrance and exit ramp closures. |  |
 | Northbound and southbound from FM-2004/CAMP WALLACE ACCESS RD. to FM-519/MAIN in La Marque | 1 Alternate Lane(s) | Closed daily from 9:00 AM to 3:00 PM through Saturday, September 30 | |  |
 | Northbound and southbound Frontage Road from FM-2004/Camp Wallace Access Rd. to FM-519/Main in La Marque | 1 Alternate Lane(s) | Closed daily from 9:00 AM to 3:00 PM through Saturday, September 30 | |  |
 | Northbound and southbound Frontage Road from FM-2004/Camp Wallace Access Rd. to FM-519/Main in La Marque | 1 Alternate Lane(s) | Closed nightly 9:00 PM to 5:00 AM through the morning of Saturday, September 30 | |  |
 | Northbound and southbound from FM-2004/Camp Wallace Access Rd. to FM-519/Main in La Marque | 1 Alternate Lane(s) | Closed nightly 9:00 PM to 5:00 AM through the morning of Saturday, September 30 | |  |
 | Northbound and southbound from FM-519/Main to Sailfish St in La Marque / Hitchcock / Texas City | 1 Alternate Lane(s) | Closed daily from 9:00 AM to 3:00 PM through Saturday, September 30 | |  |
 | Northbound and southbound Frontage Road from FM-519/MAIN to SAILFISH ST in La Marque / Hitchcock / Texas City | 1 Alternate Lane(s) | Closed daily from 9:00 AM to 3:00 PM through Saturday, September 30 | |  |
 | Northbound and southbound Frontage Road from FM-519/Main to Sailfish St in La Marque / Hitchcock / Texas City | 1 Alternate Lane(s) | Closed nightly 9:00 PM to 5:00 AM through the morning of Saturday, September 30 | |  |
 | Northbound and southbound from FM-519/Main to Sailfish St in La Marque / Hitchcock / Texas City | 1 Alternate Lane(s) | Closed nightly 9:00 PM to 5:00 AM through the morning of Saturday, September 30 | |  |
 | Northbound and southbound from Sailfish St to Galveston Causeway Bridge in Hitchcock / Texas City / Tiki Island | 1 Alternate Lane(s) | Closed daily from 9:00 AM to 3:00 PM through Saturday, September 30 | |  |
 | Northbound and southbound from Sailfish St to Galveston Causeway Bridge in Hitchcock / Texas City / Tiki Island | 1 Alternate Lane(s) | Closed nightly 9:00 PM to 5:00 AM through the morning of Saturday, September 30 | |  |
 | Northbound and southbound Frontage Road from SAILFISH ST to BNSF Rail Road in /Bayou Vista/Tiki Island | Total Closure | Closed until further notice | Use next available U-turn at Tiki island. |  |
 | Northbound and southbound Frontage Road from FM-517 to FM-2004/CAMP WALLACE ACCESS RD. in Dickinson / Texas City | 1 Alternate Lane(s) | Closed daily from 9:00 AM to 3:00 PM through Saturday, September 30 | |  |
 | Northbound and southbound Frontage Road from FM-517 to FM-2004/CAMP WALLACE ACCESS RD. in Dickinson / Texas City | 1 Alternate Lane(s) | Closed nightly 9:00 PM to 5:00 AM through the morning of Saturday, September 30 | |  |
 | Southbound Frontage Road from Southbound Frontage Rd to Northbound Frontage Rd in La Marque | 1 U-Turn Lane | Closed until further notice | Traffic on the southbound frontage road will utilize the inside left turn lane at the FM519 intersection to reach the northbound frontage road.
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 | Southbound Frontage Road from Westward Ave to South o f FM 519 in La Marque | 1 Inside Lane(s) | Closed daily from 9:00 AM to 3:00 PM through Wednesday, May 31 | |  |
 | Southbound Exit Ramp To FM-518 in League City | Total Closure | Closed continuously until 5:00 AM, Monday, March 27 | Traffic will continue south to FM 646 and use u-turn to travel north to FM 518 |  |
 | Southbound Exit Ramp To SH 96/Calder/Brittany Bay in League City | Total Closure | Closed continuously until 5:00 AM, Monday, March 27 | Traffic will continue south to FM 646 and use u-turn to travel north to SH 96 |  |
 | Southbound from Clear Creek/Galveston-Harris County Line to SH 96/Calder/Brittany Bay in League City | 2 Alternate Lane(s) | Closed continuously until 5:00 AM, Monday, March 27 | |  |
 | Southbound Frontage Road from Nasa Bypass to SH 96/Calder/Brittany Bay | 1 Alternate Lane(s) | Closed continuously until 5:00 AM, Monday, March 27 | No detour required. One lane will be open to traffic. |  |