- Project Dates: SEPT 2013 - DEC 2014
- Contract Amount: $16,600
- Civil Engineering
Under contract to the general contractor, SBCC prepared the site demolition, civil improvement drawings, structural design, and survey services to support the design of the addition of a 3,500 square foot steel frame building and new parking area at Creech Air Force Base (AFB), Nevada. SBCC provided a grading plan, pavement design for new parking areas, associated specifications, site survey, Level D subsurface utility engineering, and structural engineering for design of the building foundation, including review of the pre-manufactured steel building design. SBCC identified the presence of an existing sewer line that ran below the planned location of the new building and conveyed the risk and proposed action to the contractor to mitigate potential issues during construction. Additionally, site security was a significant issue and SBCC had to evaluate offset distances and fencing to meet anti-terrorism requirements.
SBCC's design scope included the following items:
- Demolition of the existing asphalt and concrete paving to make room for a new concrete building foundation, concrete drive, and asphalt parking area. All existing electrical infrastructure within the demo areas was removed.
- The existing 8 foot fence and two gates were salvaged and reused for the new parking area.
- Street access was provided at two locations. One utilizing the existing street access, which was widened to accommodate a straight entrance into the new building roll up door. The other entrance occurred through a salvaged vehicle gate into the new parking area. Both entrances utilized valley gutters to convey storm water in the roadway and inhibit flow from entering the new building and parking area.
- A concrete swale in the parking area was provided to convey storm water off the parking areas.
- The parking and building foundations were constructed approximately 18-inches above existing grade (as verified through field survey) earthen fill to be placed in 6-inch lifts with 90% compaction.
- The building foundation was designed to carry the building loads as well as support the weight of a 55,000 pound vehicle. The proposed foundation was de-conflicted with the adjacent existing foundation, which required the building vertical support members be slightly offset.
- Landscaping was maintained to the greatest extent possible. Existing irrigation systems were not impacted and retained.