Leon Valley
TX

Staff Report
17-35

Update on San Antonio Water System’s LC-17 Phase III and W-2 Huebner Creek Projects - Ryan Sowa, P.E. of Kimley-Horn, (engineer for San Antonio Water Systems SAWS Project).

Information

Department:Public WorksSponsors:
Category:Report

Item Discussion

PURPOSE

 

To update the City Council and citizens on the San Antonio Water System’s (SAWS) portion of the LC-17 Phase III project and the future SAWS Huebner Creek W-2 project. The projects are to relocate recycled water and sewer mains in Huebner Creek, from the city limits at Shadow Mist Drive to the northeast city limits at the Apple Creek subdivision, and then beyond.

 

Bexar County Flood Control (BCFC) has begun construction of the LC-17 Phase III project, which consists of widening Huebner Creek, from Shadow Mist to the Bandera Road bridge. This project also includes relocating the SAWS recycled water and wastewater mains in the creek, from Shadow Mist to the Northwest Little League ballfields, off of Poss Road. The contractor for SAWS is marking locations in the creek bed at the Bandera Road bridge and is expected to begin construction in June.

 

The contractor will stage at the Bandera Road bridge and dig bore pits. They will then bore a tunnel from the bridge, through Huebner Creek, to the Northwest Little League Softball field area. SAWS plans on continuing from the Northwest Little League ball fields to the northeast city limits on Huebner Road, as a part of their Huebner Creek W-2 project. This will consist of boring a tunnel from the ballfield to the Evers Road bridge, along Poss Road. The remaining portion of the project will then continue from the Evers Road bridge to the Apple Creek subdivision in San Antonio, through Huebner Creek.

 

The work is expected to take approximately 40 months to complete:

·              LC-17 Phase III - approx. 18 months

§              Replacement of 800 feet of 8-inch and 10-inch sewer main

§              Upsize of 4,600 feet of 24-inch sewer main to a 42-inch sewer main to increase capacity

§              Constructed 1975

§              Required by Consent Decree

§              Adjustment of 3,800 feet of 36-inch recycled water main that was constructed 2001

·              Huebner Creek W-2 - approx. 15 months (begin 2019, end mid 2020)

 

 

A tree removal permit for the LC-17 Phase III project was issued to SAWS on June 16, 2016. The plans call for a total of five trees to be removed and four new trees to be planted. All areas of construction are to be restored and SAWS is aware of the sensitive nature of the Huebner - Onion Natural Area Park. Bank erosion along the creek in areas that were disturbed near Bandera Road bridge is to be mitigated with high-strength matting and gabion mattresses.

 

SEE LEON VALLEY

 

Social Equity - Providing the citizens with new water and sewer infrastructure with greater capacities assures continuous supply of water and proper disposal of sewage.

 

Economic Development - Reducing potential dangers from sewer spills promotes overall health, safety, and welfare image of City, which may attract businesses and new residents.

 

Environmental Stewardship - Reducing sewer spills will protect the existing creek by reducing the amount of pollutants entering creeks and rivers, thereby improving overall water quality.

 

FISCAL IMPACT

 

None to the City.

Document Comments

RECOMMENDATION

 

None - informational only.

 

Meeting History

Apr 18, 2017 7:00 PM  City Council Regular Meeting

Public Works Director Melinda Moritz introduced Ryan Sowa, P.E. of Kimley-Horn to present an update to the City Council and citizens on the San Antonio Water System’s (SAWS) portion of the LC-17 Phase III project and the future SAWS Huebner Creek W-2 project. The projects are to relocate recycled water and sewer mains in Huebner Creek, from the city limits at Shadow Mist Drive to the northeast city limits at the Apple Creek subdivision, and then beyond.

Bexar County Flood Control (BCFC) has begun construction of the LC-17 Phase III project, which consists of widening Huebner Creek, from Shadow Mist to the Bandera Road bridge. This project also includes relocating the SAWS recycled water and wastewater mains in the creek, from Shadow Mist to the Northwest Little League ballfields, off of Poss Road. The contractor for SAWS is marking locations in the creek bed at the Bandera Road bridge and is expected to begin construction in June.

The contractor will stage at the Bandera Road bridge and dig bore pits. They will then bore a tunnel from the bridge, through Huebner Creek, to the Northwest Little League Softball field area. SAWS plans on continuing from the Northwest Little League ball fields to the northeast city limits on Huebner Road, as a part of their Huebner Creek W-2 project. This will consist of boring a tunnel from the ballfield to the Evers Road bridge, along Poss Road. The remaining portion of the project will then continue from the Evers Road bridge to the Apple Creek subdivision in San Antonio, through Huebner Creek.

The work is expected to take approximately 40 months to complete. A tree removal permit for the LC-17 Phase III project was issued to SAWS on June 16, 2016. The plans call for a total of five trees to be removed and four new trees to be planted. All areas of construction are to be restored and SAWS is aware of the sensitive nature of the Huebner - Onion Natural Area Park. Bank erosion along the creek in areas that were disturbed near Bandera Road bridge is to be mitigated with high-strength matting and gabion mattresses.

· Lyn Joseph, 6423 Trotter Lane asked about the tunnels from Evers to Huebner.

· Matthew Hodde, 5905 El Verde Road asked what the limitation of what could be built over this project along Bandera Road to the city limits.

RESULT:PRESENTED

Discussion