Home | About me | Contact | What's new | Privacy | Search
 

San Antonio
Freeway system
Other roads
  Alt intersections
  Bandera Rd proposals
  Cibolo Parkway
  The Circuit
  Hry Wz/Aus Hwy SPUI
  I-10 Boerne Projects
  I-35/SA-Aus Corridor
  I-35 Comal Projects
  LP 1604 South Projects
  SH 130
  SH 211
  Superstreets
  Loop addressing
  Which Military?
  Which Wurzbach?
History
FAQs

Search this site
 
This site is not affiliated with any official agency.


Twitter

Facebook

Blog

ADVERTISEMENT

Loop 1604 Other San Antonio Area Roads
Loop 1604 South Projects

This page last updated September 19, 2019

ADVERTISEMENT

Loop 1604 Sotuh projects map

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   From US 90 West to I-35 South

Projected start:
Late 2021

Description
This project 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. 

Additional overpasses for the new lanes will be built at the Medina River, Macdona-Lacoste Rd./Nelson Rd., and Quintana Rd.

A new overpass and full interchange for Loop 1604 will be built at FM 2536/Old Pearsall Rd.

At FM 143, a full crossover with turnarounds for both directions will be built. This intersection will be wide enough to accommodate a future overpass for Loop 1604.

A turnaround-only crossover will be built just north of the Medina River at the location of a planned future east-west arterial. It will also be designed to accommodate a future overpass.

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.

A turnaround-only crossover will be built at Kinney Rd.

The Dragon Ln. connection to Loop 1604 will be closed and Dragon Ln. 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 Ln.

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.

At I-35, TxDOT is currently exploring a possible double-roundabout or "dumbbell" interchange.

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.




2   From US 281 South to FM 1303

Project status:
 Under construction (52% complete; estimated completion in late 2020)

Description
This project will widen 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 Cambellton Road, the existing roadway will become the eastbound lanes and a new westbound roadway will be built to the north of it. Between Cambellton and FM 1303, the existing roadway will become the westbound lanes and a new eastbound roadway will be 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) will be constructed to replace the two "jughandle" connectors along with a new overpass for the westbound lanes.

Turnaround-only crossovers (both directions) will be built just east of Rockport Rd., midway between Cambellton Rd. and Liedecke Rd., and just west of Labus Rd. 

Full crossovers with turnarounds will be built at FM 3499, FM 1937, Cambellton Rd., and FM 1303. 

A full crossover without turnarounds will be built at Priest Rd. 

An eastbound-to-westbound turnaround will be built midway between FM 3499 and FM 1937. 

At S Flores Rd. east of I-37, there will be a westbound left turn to S Flores and turnarounds for both directions but no left turn from S Flores. 

At Southside Heritage Elementary School, there will be an eastbound left turn into the school but no left turn out of the school.

At I-37, there will be dedicated left turn lanes as well as turnarounds for both directions of Loop 1604.

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.



3   From I-10 East to FM 1346

Project status:

  • Phase 1 under construction (began in May 2019 and is 35% complete with estimated completion in mid 2020)
  • Phase 2 could start in late 2022

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 will run from I-10 East south to Martinez Creek and is under construction. 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.



Other sites of interest
TxDOT - Loop 1604 from US 281 to FM 1303
https://www.txdot.gov/inside-txdot/projects/studies/san-antonio/lp-1604-us281-fm1303.html
TxDOT - Loop 1604 from US 90 to I-35
https://www.txdot.gov/inside-txdot/get-involved/about/hearings-meetings/san-antonio/092817.html
TxDOT - Loop 1604 from I-10 East to FM 1346
https://www.txdot.gov/inside-txdot/get-involved/about/hearings-meetings/san-antonio/050318.html




If you found this informative, please consider making a small donation to help support it. Thanks!
This page and all its contents are Copyright 2019 by Brian Purcell

NOTICE
The information provided on this website is provided on an "as-is" basis without warranties of any kind either express or implied.  The author and his agents make no warranties or representations of any kind concerning any information contained in this website.  This website is provided only as general information.  The author expressly disclaims all liability with respect to actions taken or not taken based upon the information contained herein or with respect to any errors or omissions in such information.  All opinions expressed are strictly those of the author.  This site is not affiliated in any way with any official agency.