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Other San
Antonio Area Roads
Loop
1604 South Projects |
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| This page
last updated February 18, 2023 |
TxDOT
has long-range plans
to widen all of Loop 1604 south of US 90 to a four-lane divided
highway. Two segments are under construction and two more segments are
planned. This
page
contains information about those projects.
| 1 |
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From US 90 West to I-35 South
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Projected start:
Phase 1 (US 90 to Macdona-Lacoste Rd.) is tentatively planned to start in 2026
Phase 2 (Macdona-Lacoste Rd. to Loop 1604) is tentatively scheduled for
2034
Description
These
projects will widen Loop
1604 from a two-lane rural road to a four-lane divided highway from US
90 West to I-35 South. In general, the existing roadway will become the
northbound lanes and a new southbound roadway will be built to the
west. All intersections along this stretch will be reconfigured and improved.
Phase 1 - US 90 to Macdona Lacoste Rd.
Loop
1604 will be widened to a four-lane divided highway from US 90 to just
north of Macdona Lacoste Rd. Restricted Crossing U-Turn (RCUT)
intersections, also known as a "superstreet",
will be built at Amber Heart, FM 143/Pue Rd., Stillhouse Hollow, Cielo
Medina, and Pue Rd. South. All but the FM 143/Pue Rd. will be
"right-in/right-out" intersections, meaning traffic can only turn right
into or out of those streets with nearby turnarounds to facilitate left
turns. The FM 143/Pue Rd. intersection will allow left turns from Loop
1604 to those respective streets, but no left turns from those streets
onto Loop 1604. Again, turnarounds will facilitate those movements. This configuration will improve safety and
forestall future congestion along this stretch. See the Restricted Crossing U-Turn intersections
page for more information on how these
intersections work and how they reduce congestion and improve safety.
A
new bridge over the Media River will be built to carry the new
southbound lanes. The existing bridge will be repurposed for the new northbound lanes.
Phase 2 - Macdona Lacoste Rd. to I-35 South
Loop
1604 will be widened to a four-lane divided highway from north of
Macdona Lacoste Rd. (tying into the end of Phase 1) to I-35 South.
At
Macdona-Lacoste
Rd./Nelson Rd., a second "jughandle" connector will be built on the
west side of Loop 1604 to connect
the new southbound lanes to Macdona-Lacoste
Rd./Nelson Rd. The existing connector will serve the northbound lanes.
Right-in/right-out intersections will be built at Kinney Rd. and Rovert Glenn Rd.
The
current Dragon Lane intersection at Loop 1604 will be closed and Dragon
Lane will
dead end at the Southwest High School parking lot. A new
connector road to Loop 1604 will be built just south of the existing
Dragon Lane intersection and will be a right-in/right-out intersection
along the new northbound access road from Pearsall Rd. to Loop 1604.
At
Quintana Rd., the existing connector to Loop 1604 south of Quintana
will be removed and replaced with a short driveway to adjacent
properties. This will also remove the existing railroad crossing there.
The existing connector north of Quintana will be lengthened and
reconfigured to become the entrance and exit ramp to/from southbound
Loop 1604 and a new entrance ramp to northbound Loop 1604 from Quintana
will be built.
A
new overpass and full interchange for Loop 1604 will be built at FM
2536/Old Pearsall Rd. Additional
overpasses for the new lanes will be built at Macdona-Lacoste
Rd./Nelson Rd., and Quintana Rd.
At
I-35, TxDOT is exploring a possible double-roundabout or
"dumbbell" interchange.
Schematics
Click
on
the images below to open the detailed schematics for this
project from TxDOT with my own annotations added to help clarify and
explain the various elements. Each schematic will
open in a new window that you can scroll and zoom.
Phase 1
Phase 2
| 2 |
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From US 281 South to FM
1303
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Project status: Completed in late 2020
Description
This
project widened Loop 1604 from a two-lane rural road to a four-lane
divided highway from just west of US 281 to just north of FM 1303.
Between US 281 and Campbellton Road, the existing roadway became the
eastbound lanes and a new westbound roadway was built to the
north of it. Between Campbellton and FM 1303, the existing roadway
became the westbound lanes and a new eastbound roadway was built to
the south of it.
At
US 281, a full diamond interchange (i.e. entrance and exit ramps from
both directions of Loop 1604) was constructed to replace the two
existing connectors along with a new overpass for the westbound
lanes.
Turnaround-only
crossovers (both directions) were built just east of Rockport Rd.,
midway between Campbellton Rd. and Liedecke Rd., and just west of Labus
Rd.
Full
crossovers with turnarounds were built at FM 3499, FM 1937,
Campbellton Rd., and FM 1303.
A
full crossover without turnarounds was built at Priest Rd.
An
eastbound-to-westbound turnaround was built midway between FM 3499
and FM 1937.
At
S Flores Rd. east of I-37, a westbound left turn to S
Flores and turnarounds for both directions were built.
At
Southside Heritage Elementary School, an eastbound left
turn into the school was built.
At
I-37, dedicated left turn lanes as well as turnarounds
for both directions of Loop 1604 were built.
| 3 |
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From I-10 East to FM 1346
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Project status:
- Phase
1 completed in January 2021
- Phase
2 is tentatively scheduled for 2027
Description
This
project will widen Loop 1604 from a two-lane rural road to a four-lane
divided highway from I-10 East to FM 1346. Due to funding
constraints, however, this project will be broken
into two phases. The first phase ran
from I-10 East south to Martinez Creek and was completed in early 2021.
The
second phase, from Martinez Creek to FM 1346, is
tentatively scheduled to start in late 2022. The descriptions and
schematic below are for the entire project.
Full
intersections with dedicated right and left turn lanes will be provided
at FM 1346 and at Schuwirth Rd. The intersection at FM 1346 will be
signalized. The intersection at Green Rd. will be severed with each
side becoming a "right-in/right-out" intersection. To turn left from
Green Rd. onto 1604, or to continue straight through, will require a
right turn and then a downstream U-turn.
Turnarounds
will be provided at the following locations:
- I-10
East (northbound to southbound only)
- Midway
between Green Rd. and Schuwirth Rd.
- At
Schuwirth Rd.
- Midway
between Schuwirth Rd. and Martinez Creek
- About
1/3rd of a mile south of Martinez Creek
- At
FM 1346 (southbound to northbound only)
Each
turnaround will have both a deceleration and acceleration/merge lane.
Other
than the intersections and turnarounds noted above, there will be no
crossovers along this stretch of Loop 1604. Traffic entering from
driveways along this stretch will only be allowed to make a right turn.
To turn left will require a right turn onto 1604 and then the use of a
downstream turnaround.
Between
FM 1346 and Abbott Rd., the roadway will taper back to a two-lane rural
road. On southbound Loop 1604 at Abbott Rd., there will be a
dedicated left turn lane and a dedicated right turn lane. The existing
left turn land on northbound Loop 1604 there will remain.
A
future project will continue the expansion south of FM 1346.
Schematic
Click
on the image below
to open the detailed schematic for this
project from TxDOT with my own annotations added to help clarify and
explain the various elements. The schematic will
open in a new window that you can scroll and zoom.
| 4 |
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From FM 1346 to FM 1303
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Project status:
- Advanced
planning - Tentatively scheduled for 2031
Description
This
project will widen Loop 1604 from a two-lane rural road to a four-lane
divided highway from FM 1346 to FM 1303.
Schematic
A
public schematic for this project has not yet been made available. When
it is, I will include it here.
Other
sites of interest
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