Site Engineering is a difficult subject for many landscape students and designers, yet it is a very important aspect of landscape architecture. As a landscape architect, you probably do not have to produce a grading plan (it can be done by a civil engineer), but you do need to have some basic site engineering knowledge to be able to coordinate your work with civil and other consultants. You do need to be able to read and visualize an ALTA survey map, or a grading plan; you do need to be able to understand what a concave or convex landform is, what a swale or ridge is, how to read contour or spot elevations, etc.
"Site Engineering for Landscape Architects" will give you a very comprehensive knowledge of site engineering. It covers contours and form (constructing a section, contour signature and landform, characteristic of contour lines), interpolation and slope, grading constraints, grading design and process, earthwork, grading landform and architecture, storm water management, the methods to determine the rates and volumes of storm water runoff, natural resources conservation services, required detention storage, designing and sizing storm water management system, horizontal road alignment, vertical road alignment, and various case studies. It is so comprehensive that you can probably do a civil engineer's work after your read it. My suggestion is to buy this book, and look through it to have a general idea of what it covers and know where to find the information when you need it later. You can also look through the portions that you already know and focus on reading the portions that you are not very familiar with and improve your site engineering knowledge.
"Site Engineering for Landscape Architects" has 352 pages and many line drawings and interior black-and-white photos. It is a great site engineering reference book for architects, landscape architects, urban planners, and engineers.
Gang Chen, AIA, LEED AP BD+C, Author of "Planting Design Illustrated," "LEED GA Exam Guide," "Architectural Practice Simplified," and other books on various LEED exams, architecture, and landscape architecture