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Consulting Civil Engineers

 

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Streets & Roadways

 

Brodie Lane & Slaughter Lane

Transportation System Management Improvements - Austin

 

This roadway intersection improvement project consists of adding two right turn lanes and three left turn lanes. The proposed improvements consisted of approximately 2,200 lineal feet of new traffic lane, storm sewer lines, water & wastewater lines, three new traffic signals, expansion of two existing water quality ponds, 1,600 lineal feet of sidewalks and the associated curb ramps, curb & gutters and new striping for vehicular and pedestrian traffic.

 

Dittmar Road Improvements - Austin

The project site is located in the South Boggy Creek watershed in the South Austin area. The existing roadway was typical of older county roads, with one-lane bridges and no storm sewer lines. The proposed improvements consist of a 4-lane divided, curb and gutter roadway. The total roadway improvement is approximately 7,700 linear feet. Raymond Chan & Associates (RC&A) was retained by the City of Austin to provide the hydrologic / hydraulic analysis and the design of storm water improvements for the project.

 

South Edmond Street - Taylor, Texas

 

This project consisted of developing 85 acres in Taylor, Texas into an industrial subdivision. The main items of construction included an industrial collector roadway with associated drainage and utility improvements, grading and re-routing of an existing waterway, and reclaiming several acres of land from the 100-year floodplain.

The total street length designed for the industrial park was 2,700 linear feet. The proposed street section consisted of 40’ of pavement with curb and gutter and sidewalk. Street drainage was captured and conveyed by curb inlets and storm drains. A tributary of Mustang Creek bisected the tract and box culverts were installed under the roadway at the tributary crossing. Approximately 2,800 linear feet of channel improvements were designed to reduce the floodplain across the tract and reduce excessive erosion.

Other Streets & Roadways projects:

 

 

 

 

 

Brodie Lane Southern Extension - Travis County

Access Roads for Various Lift Stations - Austin, Texas

Rundberg Lane TSM Improvements - Austin, Texas

Rutland Drive TSM Improvements - Austin, Texas

Bolm Road / Airport Boulevard TSM Improvements - Austin, Texas

Montopolis Drive ADA Sidewalk Improvements - Austin, Texas

Detailed Traffic Control Plans for over ten (10) Major Roadway Projects under the City of Austin Street

      Reconstruction Program

 

Water, Wastewater & Communications

 

South IH-35 Annexation Area, Water and Wastewater Improvements - Austin, Texas

 

The service area for this project consists of approximately 1,000 acres of land. Three Phases of water & wastewater improvements involving the construction of approximately 2,250 L.F. of 8” water line, 3,800 L.F. of 12” water line, 29 fire hydrants, 3,360 L.F. of 8” wastewater line and 4,050 L.F. of 18” wastewater line. The project area is bounded by Slaughter Lane to the north, IH-35 on the east, FM1626 to the south and the existing City limits of San Leanna and Austin on the west.   Unique design considerations for this project: The proposed wastewater line would need to connect to an existing wastewater tunnel (54-inch diameter) located on the other side of Slaughter Creek. Slaughter Creek at this location is classified as Major Waterway as defined in the City’s Land Development Code. Construction is prohibited within the Critical Water Quality Zone (equals to the 100- year storm floodplain limits). Therefore, the portion of the wastewater line crosses Slaughter Creek was constructed using the bore and jack method. In order to avoid future wastewater line crossing Slaughter Creek and the related environmental disturbance, the City instructed RC&A to size the wastewater line to accommodate future development. Due to the complexity of future development and topography of the project site, RC&A developed seven (7) options to serve the annexation area south of Slaughter Creek.

Eubank Acres Annexation Area, Water and Wastewater Improvements - Austin, Texas

 

The project area is located in north Austin and consists of approximately 146 single family homes and 5 commercial buildings. The subject site was annexed by the City of Austin in December, 2000.  The proposed wastewater improvements consists of approximately 11,000 lineal feet of 8” diameter line, 4,600 lineal feet of 6” diameter line, 57 manholes and the associated appurtenances. The project site is characterized with steep terrain and substandard street widths. Many homes have finished floor elevations several feet below street level.  Several design options and the associated estimated construction costs were developed to provide the City with sufficient cost-benefit data to select the preferred alternatives. Additionally, due to the narrow street widths and overhanging tree canopy, RC&A selected the wastewater alignments that would accommodate local traffic and emergency vehicles as well as having the least impacts on existing trees.

Del Valle Service to Annexed Area, Water and Wastewater Improvements - Austin, Texas

 

The Del Valle Annexation Area covers approximately 1,177 acres located southeast of downtown Austin. The annexed area is located just adjacent to SH71, just north of the Austin-Bergstrom International Airport. The purpose of this project is to provide water and wastewater services to the Del Valle Annexation Area. RC&A was selected to perform engineering services to design water and wastewater improvements for Service Area 2, of approximately 448 acres of mixed land uses that will undoubtedly change over time to airport-related commercial / industrial land uses. The water improvements consisted of approximately 11,000’ of 16” diameter water line, 3,700’ of 12” diameter water line and the associated appurtenances. The wastewater improvements consisted of approximately 3,000’ of 15” diameter wastewater line, 4,700’ of 12” diameter wastewater line and 3,200’ of 8” diameter wastewater line as well as the necessary service lines and manholes.

North Oaks Annexation Area, Water and Wastewater Improvements - Austin, Texas

 

RC&A is the prime consultant for this project. The proposed project is along Walnut Creek just east of Interstate 35 and north of Braker Lane in the North Oaks Subdivision. The City of Austin annexed this area in October, 2005. RC&A’s assigned project area for the proposed water and wastewater improvements included North Oaks Drive, Oak Trail Drive, Oak Haven Road, Dove Haven Road, Walnut Creek Drive and Olmos Drive. The proposed water & wastewater improvements located within the RC&A’s project area consisted of approximately 11,200 lineal feet of wastewater line and approximately 3,000 lineal feet of water line.   The work included creek access and stabilization along Walnut Creek.  Unique and challenging traffic control plans were created for each specific work zones.  A pavement restoration plan was developed to carry through four temporary patches during construction to final restoration surfaces.  The service area includes over 220 existing homes that are currently on septic systems.  Efforts were taken to convert the vast majority of the services to a gravity system. 

(ACWP) Upper Shoal - Lower Hancock Branch Wastewater Improvements - Austin, Texas

 

The project site for the 18” wastewater line is located at an area from Shoal Creek Boulevard and 49th Street on the south, along Hancock Branch passing Hancock Drive, Burnet Road and North Loop Boulevard over a distance of over 3,000 feet. The improvements consists of approximately 3,200 lineal feet of 18” diameter wastewater line with nearly 1,700 lineal feet requiring steel casing for bores, 36 new wastewater manholes, and significant amounts of traffic control during construction, pavement repair and appurtenances. Another component of the project involves an 8” wastewater line from Shoal Creek Boulevard and 46th Street on the south, heading north along Shoal Creek Boulevard to Woodview Drive, then west and south to the dead end of Hilwin Circle for a distance of approximately 1,400 feet. The final component of the project consists of the tunneling of approximately 70 lineal feet of a 48” diameter wastewater main from Hilwin Circle to Shoal Creek.

 

Other Water, Wastewater & Communications projects:

 

 

 

 

 

Decker Lane Water Line Improvements - Austin, Texas

Nuchols Crossing Water Line Adjustments - Austin, Texas

Rio Grande Water Line Adjustments - Austin, Texas

Guadalupe Street Water Line Adjustments - Austin, Texas

30th Street Water Line Adjustments - Austin, Texas

Nueces Street Water Line Adjustments - Austin, Texas

Manchaca Road Water Line Improvements - Austin, Texas

12th Street and Rosewood Street Water & Wastewater Improvements - Austin, Texas

City of Austin, Street Rehabilitation Program, 1994 -1995 and 1995 - 1996 (Brazos Street, San Jacinto

     Boulevard, Barton Springs Road, Burton Drive and East 12th Street) Water & Wastewater

     Improvements - Austin, Texas

Royal Crest Drive, Woodland Drive, Willow Creek Drive and Gladeline Drive Water Line Adjustments -

     Austin, Texas

 

 

 


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