Austin |
Land Development Code |
Title 25. LAND DEVELOPMENT. |
Chapter 25-2. ZONING. |
SubChapter C. USE AND DEVELOPMENT REGULATIONS. |
Article 11. HILL COUNTRY ROADWAY REQUIREMENTS. |
Division 2. Development Standards. |
§ 25-2-1123. CONSTRUCTION ON SLOPES.
(A)
Development of property in a hill country roadway corridor must comply with Chapter 25-8, Subchapter A, Article 7, Division 3 ( Construction On Slopes ) and this section. If a conflict exists between this section and another section of this title, the more restrictive provision applies.
(B)
A person who constructs a structure uphill of a slope with a gradient of 15 percent or more:
(1)
must use a pier and beam technique to construct the structure; and
(2)
may not extend a vertical wall below the lowest finished floor elevation of the structure, except as necessary to screen mechanical equipment.
(C)
A person who constructs a structure downhill of a slope with a gradient of 15 percent or more may not exceed a depth of eight feet for structural excavation.
(D)
To restore a cut or fill for a roadway, driveway, or structure, a person may construct a terraced wall and fill with a finished gradient of 100 percent. The wall may not exceed a height of four feet. More than one level of terracing may be constructed.
(E)
If a person does not use terracing to restore a cut or fill, the person must revegetate and restore the cut or fill to a slope have a finished gradient of 33 percent.
(F)
A cut or fill restored under Subsection (E) may not exceed eight feet in length. If additional restoration is required, a terrace that complies with Subsection (D) must be constructed between each eight-foot slope segment.
(G)
A person must place fill to blend with the natural contour of the slope.
Source: Section 13-2-782; Ord. 990225-70; Ord. 031211-11.