Antonio Area Freeway System
INFO: Loop 410 from Ingram to US 90
page last updated December 18, 2021
Loop 410/SH 151 interchange including Loop 410 from Ingram Rd. to US 90
Phase 1: Completed in 2018
Phase 2: Under construction (80% complete)
Work on Phase 2
started in August 2019
and is expected to be complete in mid 2022.
The eastbound SH
151 to southbound Loop 410 flyover opened on September 15, 2021.
northbound Loop 410 to westbound SH 151 flyover opened on October 9th,
projects to complete the remainder of the SH 151/Loop 410 interchange
are currently unfunded and therefore have no timeline.
1 of this $81.8 million project constructed the first two flyovers at
interchange at Loop 410 and SH 151, widened Loop 410 to eight lanes
from Ingram to SH 151, and made various ramp improvements on Loop 410 and on SH
2 will build the eastbound SH 151 to southbound Loop 410 and northbound
Loop 410 to westbound SH 151 flyovers. This project will also widen
Loop 410 to ten lanes from Ingram to SH 151 and to eight lanes from SH 151
to US 90.
project will help
flyovers at the Loop 410/SH 151 interchange will improve operations and
reduce congestion in the interchange and adjacent access roads. The
additional lanes on Loop 410 should accommodate expected future traffic
is construction starting again less than a year after the first phase
was completed and before the work south of SH 151 is done?
is because TxDOT's funding was increased significantly a few years ago,
so backlogged projects are getting funded much sooner than expected.
Phase 2 of this project is one of those backlogged projects that has
been expedited due to the new funding; it was originally expected there
would be five or more years between phases.
- Why did work stop for so long on the flyovers in Phase 1?
work had started, an
engineering error was discovered in the plans for the long steel beams
which delayed their fabrication. In the meantime,
in order to prevent the overall project from being delayed, the
contractor worked on other areas of the project out-of-sequence,
i.e. work that was scheduled to be done after the flyovers were
Therefore, while this issue did delay the opening of the flyovers, it
did not cause any delay in the overall completion date of the
the image below to open the detailed schematic for this
project (Phase 2) 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.
DETAILED PROJECT SCHEMATIC
Click above to see the detailed
annotated schematic for