Construction Support
Construction Support
Construction phase services included shop drawing review, contractor meetings, review of payment applications and construction as-built, for the 411 Main Project. This project consisted of the extension of San Saba Street for a half-block to provide parking, sidewalks, streetlights, landscaping and other aesthetic features as part of improvements in downtown Round Rock. Construction phase services included the addition of a retaining wall and a sidewalk, along with a subsequent submittal to TCEQ.
Construction phase services included shop drawing review, contractor meetings, review of payment applications and construction as-built, for the widening of Gattis School Road from west of Rolling Ridge Drive to west of Via Sonoma Trail (0.5 mile). The proposed improvements include curb removals, sidewalk relocation and re-striping to accommodate the addition of a two-way left turn lane for local access.
Construction phase services included shop drawing review, contractor meetings, review of payment applications and construction as-built for TxDOT to secure approval for a turn lane and access driveway for the Shops at 685 development. Project included ROW dedication determinations, environmental documentation, utility identification and coordination for relocation efforts, roadway design, storm sewer design, traffic control plans and completed permit request with required information.
Construction phase services included shop drawing review, contractor meetings, review of payment applications and construction as-built for Mager Lane improvements from FM 1660 to the east City Limits of Hutto. Project elements included right of way acquisition, utility coordination and adjustments, pavement design, storm sewer design, floodplain mapping and revisions, culvert design and channel improvements as well as normal roadway design tasks.
Construction phase services included shop drawing review, contractor meetings, review of payment applications and construction as-built. For this shopping area along the Loop 1 (Mopac Expressway) near US 183 in Travis County created congestion issues on the northbound frontage road due to patron traffic at the center’s access points. As a joint effort between TxDOT, the City of Austin and the developer, frontage road improvements including widening and re-striping to create acceleration and right turn only lanes for the shop’s access driveways were designed. Tasks include geometric layouts, roadway design, drainage design and striping plans compatible with the existing frontage road and meeting all TxDOT design requirements.
During relatively intense rain events, Oakridge Drive in the vicinity of Chisholm Trail Middle School (approximately 1000 feet west of Deep Wood Drive) experienced inundation that hindered traffic or even completely blocked the road. Additionally, storm water at times overwhelmed the culvert capacity under Creekview Drive near the Round Rock West Greenbelt (approximately 300 feet west of Deep Wood Drive) causing inundation of the road and flooding of adjacent property. The purpose of this project was to reduce the street inundation/property flooding frequency at these two locations. SLG determined the most feasible, cost effective solution for these flooding issues by analyzing and modeling the existing drainage conditions and looking at possible alternatives. Ultimately, the solution was presented to the City for concurrence and PS&E documents were developed for construction.
This contract included PS&E services for the full reconstruction and extension of an urban section of SH 6 in the City of Gorman. The urban project runs from 0.18 mile north of Crescent St. to the Comanche County Line (a length of 1.3 miles). The existing two-lane with shoulders section is being replaced with an ultimate five-lane section that will initially be striped as a three-lane section with wide shoulders. Supplemental services are being provided that includes design of a detention pond and a 0.9 mile long “drainage diversion” storm sewer system to take runoff out of the city to alleviate low frequency rainfall flooding. Project, responsibilities include preliminary design for public presentations and PS&E design of all roadway reconstruction elements including storm sewer, cross-culverts, retaining walls, illumination, a flashing beacon, intersection improvements, pedestrian accommodations, signing and striping. The Sequence of Construction will break the project into manageable sections in order to maintain construction progress while reducing the impacts of long-term construction phases to local businesses. Extensive coordination with adjacent property owners has been undertaken due to ROW constraints and associated issues with driveway tie-ins.
This contract included PS&E services for the reconstruction of SH 6 from IH 10 to 0.18 mile north of Crescent St. in Gorman (17.2 miles). Design included the creation of three separate passing lane areas (Super2 Design), culvert extensions, cross-culvert and parallel drainage safety upgrades, driveway tie-ins, and intersection improvements at FM 2563. This project was later separated into two CSJ’s. CSJ 0257-03-033 ran from IH 20 to SL 389 south of Carbon. CSJ 0257-04-029 ran from SL 389 south of Carbon to 0.18 mile north of Crescent St. in Gorman. The main purpose behind the split was to finish design and start construction on a more critical section damaged during freezing weather (029).
During plan development, it was decided to change the proposed widening and overlay projects to a widening with full depth recycling (FDR) with foamed asphalt. The 033 project included rail retorfits at bridges. Due to heavy damage, the 029 project contained a special pavement design section (test section) prepared as a coordinated effort between TxDOT and TTI. Both sets of project plans were developed to maintain existing traffic during all construction operations except for the test section in which one-lane, two-way traffic control had to be implemented.
This 3.4 mile project is situated between two major, State maintained roadways; FM 1460 and SH 130. The work performed consists of providing engineering services required for the preparation of PS&E for the addition of lanes and shoulders to an existing two-lane roadway to create a predominantly four-lane divided facility. Preparation of plans, details and quantities include roadway design, grading, paving, drainage, signing, pavement markings, signals, traffic control plans and construction cost opinions for the newly constructed west bound lanes and portions of east bound lanes to be reconstructed. This is a County sponsored project but all work required coordination with TxDOT and the City of Round Rock.