Bexar County is gearing up to overhaul a 1.3‑mile stretch of Grosenbacher Road on the Far West Side, turning a two‑lane cut‑through into a four‑lane corridor that can actually keep up with the growth around it. The rebuild will run between Canthree Drive and Potranco Road and fold in drainage upgrades plus new bicycle and pedestrian features so the roadway can handle more people in more ways, not just more cars.
The project appears on a recent commissioners court agenda as an advance funding request to the Texas Department of Transportation that would let the county tap federal grant dollars for construction. Before any dirt turns, the county still has to move utilities and acquire right‑of‑way, and it will pay TxDOT a $165,000 administrative fee tied to the funding arrangement, according to the Bexar County Commissioners Court agenda.
The total estimated cost rings in at $33.6 million. Roughly 80 percent of the construction tab is expected to come from a Federal Highway Administration Surface Transportation Block Grant, with Bexar County covering the balance. County public works officials told reporters that construction is tentatively expected to start in early 2029 and take about two years, weather permitting, as reported by Express‑News.
What the work will include
The rebuild is set to widen the pavement, modernize drainage and add sidewalks and bike lanes, effectively turning Grosenbacher into a more urban arterial that reflects how fast the Far West Side is filling in. Planning documents on the county’s capital improvements site show Grosenbacher listed in earlier CIP programs, describing similar lane additions and mobility upgrades as part of long‑range plans for the area, as noted by the Bexar County Capital Improvements Program.
How it fits into a larger West Side buildout
County leaders say the Grosenbacher widening is one piece of a broader push to connect major arterials and relieve choke points as subdivisions and commercial projects keep pushing west of Loop 1604. That effort lines up with a multi‑phase U.S. 90 expansion led by TxDOT, a project that will add main lanes, continuous frontage roads and interchange improvements across the corridor and that the agency has already moved into construction in recent months, as detailed by the TxDOT.
Drivers should not expect overnight change. Right‑of‑way purchases and utility relocations have to happen first, and private developers are likely to fill in some of the remaining gaps while the county focuses on this segment. The commissioners’ move to accept advance funding would be the key step that clears the way for final design and contracting, as per Express‑News.
