SH 99 Grand Parkway

Segments H, I-1 & I-2

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Construction Commenced

Completion Date

Miles of New Highway

First Segment (D) of

SH-99 opened


Reconstructed Bridges


Parcels Acquired


The vision for mobility using a “highway loop” around Houston dates back to the early 1960s. 


More than 50 years later, this vision is becoming a reality with the design and construction of the remaining segments of SH 99 Grand Parkway, Segments H, I-1 & I-2. At 180+ miles, this circumferential scenic highway will be the longest highway loop in the United States, traversing seven counties and encircling the Greater Houston region, which is the fourth-most populous city in the United States.

In March 2017, the Texas Department of Transportation awarded the $855 million design-build construction contract for Segments H, I-1 & I-2 to Grand Parkway Infrastructure, a joint venture led by global infrastructure leader Ferrovial Agroman, along with Webber LLC and Granite Construction Inc.

Construction along the corridor, stretching from the US 59/IH 69 interchange to the north and SH 146 in Baytown to the south, commenced in 2018. Construction activities are currently underway, including bridge construction, roadway paving, right-of-way acquisition with property owners, and utility relocations.

Fast Facts:


  • Segments H, I-1 & I-2 represent 52.8 miles of the 184 mile SH 99/Grand Parkway loop

  • Acquisition of easements through 375+ land parcels

  • 80 new or substantially reconstructed bridges will be built

  • The first segment – Segment D – of SH 99/Grand Parkway opened in August 1994; the most recent segment – Segment G – opened in March 2016

Project Maps

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Traffic Impacts

As construction continues, we will post information about upcoming traffic impacts, including lane, ramp, and bridge closures. Please note that all traffic impacts are subject to change. 


September 24 - 26 (7:00AM - 7:00PM)

SH 99 northbound and southbound left lane closed near IH 10

September 24 - 26 (7:00AM - 7:00PM)

SH 99 eastbound and westbound left lane closed east and west of Fisher Road

September 24 - 26 (7:00AM - 7:00PM)

Right shoulder closure on SH 99 eastbound east of Fisher Road

Ongoing (24hrs)

U-turn closed at SH 99 westbound at Business 146 

Ongoing (24hrs)

The eastbound and westbound SH 99 U-turns closed at FM 1405

Ongoing (24hrs)

U-turn closed at SH 99 eastbound between FM 1405 and Fisher Road


September 24 - 26 (7:00AM - 7:00PM)

Flagging operation on FM 686 from CR 621 to CR 622

September 24 - 26 (8:00AM - 5:00PM)

Flagging operation on northbound and southbound FM 1960

September 24 -26 (8:00AM - 5:00PM)

The right shoulders of northbound and southbound FM 1960 will be closed

September 24 - 26 (7:00AM - 5:00PM)

Flagging operation on CR 621

September 24 - 26 (6:00AM - 7:00PM)

Flagging operation on CR 602

September 24 -26 (6:00AM - 7:00PM)

Flagging operation on CR 603 from CR 602 to CR 604

September 24 - 26 (8:00AM - 5:00PM)

US 90 westbound right lance closure near CR 491

September 24 - 25 (6:00AM - 7:00PM)

Flagging operation on FM 686

September 25 - 26 (8:00AM - 5:00PM)

US 90 eastbound right lane closure near CR 491

Ongoing (24hrs)

CR 610 closed at FM 1960

Mont Belvieu

September 24 - 26 (24hrs)

The right lane on SH 146 southbound near Eagle Drive closed

September 24 - 26 (9:00AM - 4:00PM & 6:00PM - 5:00AM)

Flagging operation on FM 565 near Mont Belvieu City Hall

New Caney

September 23 (8:00PM - 5:00AM)

IH 69 will be reduced by 2 lanes on the northbound and southbound main lanes and frontage roads. Alternative closures - not simultaneously. 

September 28 - October 2 (9:00AM - 3:00PM)

Flagging operations on FM 1485 near Dorston

Ongoing (24hrs)

The eastbound and westbound SH 99 U-turns closed at Valley Ranch Parkway

Ongoing (24hrs)

The on-ramp to northbound IH 69/ US 59 at Community Drive closed

Ongoing (24hrs)

The off-ramp from southbound I-69/US 59 to FM 1314 exit closed.




For any inquiries, questions or concerns, please call 877-553-7374, email or fill out the form below.

Contact Us

Grand Parkway Infrastructure Office

8811 F.M. 1960 Bypass Road West

4th Floor
Humble, TX 77338

Tel: 877-553-7374

Hours of Operation: 8:00AM - 6:00PM  (Monday thru Friday)  

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Here at GPI, we're always looking for great people with great skills. For information on what jobs are available, please view our current listings. If you have any questions related to employment opportunities please email us at  or call 832-412-4633.


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