Conroe Road Projects: Hwy 105 Advances, I-45 Delayed

CONROE, Texas — Residents navigating the rapid growth of Montgomery County are encountering a complex landscape of infrastructure development as major transportation projects hit a mix of milestone successes and unexpected hurdles.

Recent updates from the Texas Department of Transportation (TxDOT) reveal that while vital arterial road projects are moving toward completion, a critical connector project intended to alleviate congestion at the city’s busiest interchange has been delayed by several years.

The Highway 105 widening project, a centerpiece of the region's efforts to manage increasing traffic volume, is showing tangible progress. The first segment, covering the stretch from west of Loop 336 to the San Jacinto River bridge, reached 32.25 percent completion as of early April. The $152.96 million project, managed by James Construction, aims to expand the highway from four to six lanes, while adding continuous two-lane frontage roads and improved ramps.

Although heavy construction has moved the original late 2024 completion target to a new estimate of Spring 2026, motorists can expect some relief sooner. Utility relocation is currently 90 percent complete, and crews are currently finalizing storm drain installations. TxDOT officials anticipate that some new main lanes will be open to traffic by late summer 2024.

For residents looking further east, the second segment of the Highway 105 expansion, extending from the San Jacinto River bridge to FM 1488, remains in the early planning stages. The $160 million project is still undergoing schematic and environmental review. TxDOT is currently exploring federal grant opportunities to secure the necessary funding, and no start date for construction has been set.

While progress moves forward on Highway 105, drivers hoping for relief at the I-45 and Highway 105 intersection will have to wait longer than anticipated. The $100 million direct connector project, designed to provide seamless transitions between northbound I-45 to westbound Highway 105 and eastbound Highway 105 to southbound I-45, has stalled.

The project, which local officials hoped would be ready for bidding this summer, is now pushed back to a 2027 or 2028 timeline. TxDOT cited complications with the right-of-way acquisition process as the primary driver for the delay. Recent engineering reviews determined that the project requires more land from the city of Conroe and private property owners than the initial scope accounted for. Project managers estimate that the legal and acquisition process, combined with subsequent design modifications, will add at least one to two years to the project timeline.

Meanwhile, other vital county routes continue to progress toward completion:

The FM 1488 widening initiative, critical for commuters in the western part of the county, is seeing significant activity. Segment 1, spanning from west of Highway 105 to east of the Montgomery city limits, is 90 percent complete and on track to conclude by the third quarter of 2024. Segment 2, running from Highway 105 to the Lake Creek bridge, is 15 percent complete with an expected finish in the third quarter of 2025. Further west, Segment 3, which stretches from FM 1774 to the Waller County line, is half finished and also slated for a third-quarter 2025 completion. Segment 4, covering the area from FM 2978 to FM 1774, remains in the design phase.

In northwest Conroe, work continues on the Loop 336 project between I-45 and North Frazier Street. This expansion, which will grow the roadway to six lanes with a continuous left-turn lane, is currently 42 percent complete and expected to wrap up by the third quarter of 2025.

Beyond major expansions, the county has also launched a $23.1 million maintenance initiative. This project, which began in March, includes critical resurfacing, guardrail repairs, and restriping at various locations across the county. Officials expect this round of improvements to conclude by the end of the third quarter of 2024.

Residents are encouraged to monitor the TxDOT Houston District website at www.txdot.gov for real-time traffic updates, lane closure schedules, and further documentation regarding ongoing projects. Those wishing to comment on current construction projects or view detailed project maps can visit the TxDOT Project Tracker tool online.