 | Northbound Exit Ramp to BROAD ST | Total Closure | Closed continuously until 9:00 PM, Monday, December 31 | NORTHBOUND TRAFFIC WILL TAKE THE TELEPHONE EXIT, THEN U-TURN AND COME BACK TO BROAD STREET |  |
| Northbound Frontage Road at BROAD ST | Total Closure | Closed nightly 9:00 PM to 3:00 PM through the morning of Monday, December 31 | Detour: motorist will need to go west on broad street to telephone road to griggs st then get back on I-45 northbound frontage road | |
| Northbound Frontage Road from NASA ROAD 1 to FM 518 | Total Closure | Closed continuously until 5:00 AM, Friday, August 31 | TRAFFIC TRAVELING NORTHBOUND ON THE FRONTAGE ROAD WILL TAKE THE I-45 NORTHBOUND MAIN LANE ENTRANCE RAMP AT FM 518 THEN TAKE THE EXIT FOR NASA ROAD 1. | |
| Northbound Exit Ramp to between LEAGUE CITY PKWY to FM 518 | Total Closure | Closed continuously until 9:00 PM, Monday, December 31 | TRAFFIC TRAVELING NORTHBOUND ON THE MAINLANES WILL CONTINUE TO NASA ROAD 1 EXIT THEN U-YURN AND COME BACK TO FM 518. | |
| Northbound Entrance Ramp from CULLEN | Total Closure | Closed nightly 8:00 PM to 5:00 AM through the morning of Tuesday, July 31 | Detour for traffic traveling IH-45 NBML: Traffic will be detoured to Pease St and will continue west to the Pease St entrance ramp for IH-45 N. | |
| Northbound from CULLEN to IH-69 Interchange | 2 Alternate Lane(s) | Closed nightly 9:00 PM to 5:00 AM through the morning of Tuesday, July 31 | | |
| Northbound Entrance Ramp from SCOTT ST | Total Closure | Closed nightly 9:00 PM to 5:00 AM through the morning of Tuesday, July 31 | Detour for traffic traveling IH-45 NBML: Traffic will be detoured to Pease St and will continue west to the Pease St entrance ramp for IH-45 N. | |
| Northbound Frontage Road from LOCKWOOD/ ELGIN to CULLEN | Total Closure | Closed nightly 9:00 PM to 5:00 AM through the morning of Tuesday, July 31 | Detour for traffic traveling IH-45 NBFR: Traffic is to take a left onto Elgin and then a right onto Cullen. From there proceed to the Cullen Blvd and IH-45 NB intersection, and turn left onto the northbound frontage road. | |
| Northbound Frontage Road from SCOTT ST to DOWLING | Total Closure | Closed nightly 9:00 PM to 5:00 AM through the morning of Tuesday, July 31 | Detour for traffic traveling IH-45 NBFR: Traffic is to take a right onto Velasco and then a left onto Leeland. From there turn left onto Emancipation Ave and right onto Pease St. | |
| Northbound Frontage Road at DOWLING | Total Closure | Closed continuously until 5:00 AM, Tuesday, July 31 | Detour for traffic traveling southbound on Dowling: Proceed along St Joseph Pkwy and turn left onto Bastrop. From there turn left onto Pierce and then turn right onto Dowling. Detour for traffic traveling northbound on Dowling: Proceed onto IH-45 SBFR and turn left onto Nettleson. From there turn left onto Pease and proceed towards Dowling. | |
| Northbound from IH-610 SOUTH LOOP to WOODRIDGE DR | Total Closure | Closed nightly 9:00 PM to 5:00 AM through the morning of Sunday, September 30 | IH45 NB main lane traffic will be detoured on IH610 EB, then up to IH10 WB. The detour for IH610 WB will be as follows: traffic will be detoured off Exit 40A on IH45 NB, U-turn at Broadway, and enter IH610 WB. The IH45 NB exit ramp to Woodridge Drive (Exit 41A) will be closed. | |
| Northbound and southbound Mainlanes and Frontage Road from IH-610 SOUTH LOOP to BROAD ST | 2 Alternate Lane(s) | Closed nightly 9:00 PM to 5:00 AM through the morning of Monday, December 31 | | |
| Northbound and southbound Mainlanes and Frontage Road from Nasa Bypass/ Nasa Rd 1 to SH 96/LEAGUE CITY PKWY | 1 Alternate Lane(s) | Closed nightly 9:00 PM to 5:00 AM through the morning of Monday, December 31 | | |
| Northbound and southbound Entrance Ramp from Nasa Bypass/ Nasa Rd 1 to SH-96 and Exit Ramp to Nasa Bypass/ Nasa Rd 1 to SH-96 | 1 Alternate Lane(s) | Closed nightly 9:00 PM to 5:00 AM through the morning of Monday, December 31 | ALTERNATE ENTRANCE AND EXIT RAMPS WILL BE CLOSED | |
| Northbound and southbound Entrance Ramp from I-610 SOUTH LOOP to BROAD STREET and Exit Ramp to I-610 SOUTH LOOP to BROAD STREET | 1 Alternate Lane(s) | Closed nightly 9:00 PM to 3:00 AM through the morning of Monday, December 31 | alternate entrance and exit ramps closed starting at I-610 South Loop to Broad Street | |
| Northbound and southbound Frontage Road at Bastrop | Total Closure | Closed continuously until 5:00 AM, Tuesday, July 31 | Detour for traffic traveling on Bastrop NB: Traffic is to take a right onto St. Joseph Parkway, left onto Hutchins, left onto Pierce, and then right back onto Bastrop. Detour for traffic traveling on Bastrop SB: Traffic is take a right onto Pierce, left onto Dowling, left onto St. Joseph Parkway and right back onto Bastrop. | |
| Northbound and southbound Frontage Road at HUTCHINS | Total Closure | Closed continuously until 5:00 AM, Tuesday, July 31 | Detour for traffic traveling on Hutchins NB: Traffic is to take a right onto Pierce, left onto Bastrop, left onto St. Joseph Parkway, and then right back onto Hutchins. Detour for traffic traveling on Hutchins SB: Traffic is take a left onto Jefferson St., right onto Bastrop, right onto West Gray St and left back onto Hutchins. | |
| Northbound and southbound Frontage Road at ST EMANUEL | Total Closure | Closed continuously until 5:00 AM, Tuesday, July 31 | Detour for traffic traveling on St. Emanuel NB: Traffic is to take a right onto Pierce, left onto Bastrop, left onto St. Joseph Parkway, and then right back onto St. Emanuel. Detour for traffic traveling on St. Emanuel SB: Traffic is take a left onto Jefferson St., right onto Bastrop, right onto West Gray St and left back onto St. Emanuel. | |
| Southbound from IH-610 SOUTH LOOP to HOWARD DR/BELLFORT AVE | 2 Alternate Lane(s) | Closed nightly 8:00 PM to 5:00 AM through the morning of Friday, July 20 | | |
| Southbound from 225 connector ramp exit to IH-610 SOUTH LOOP | Total Closure | Closed nightly 9:00 PM to 5:00 AM through the morning of Sunday, September 30 | Traffic will be directed onto Exit 40B for SH35/IH610/SH225 and will stay right to exit at IH-45 South / Park Place Blvd. After exiting, traffic will continue straight in the same lane and immediately re-enter IH-45 SB. | |
