Differences between box culvert and slab culvert

A fully enclosed (by ground / soil) tunnel structure that provides a passage (for vehicles, pedestrians, and animals) above small bodies of running water or physical barriers is called a culvert.

Slab culvert and box culvert are two different types of culvert. To choose between these two culverts an engineer should  know the difference between them. 

The main important differences between slab culvert and box culvert are given below:-

See More:

Plan of Shop 5.3 m x 8.9 m with Office Store and Washroom
Plan of the Quarter Area -11.9m x 10.1m
Calculation of Cement, Sand and Aggregate for  M-10, M-15, M-20 and M-25 (Nominal mixes)
What are different diameters of steel used in construction field
Plans of Villa Type House (60'-8" x 63'-5" ) with Double Height Lobby
Unit Weight of Different Building Materials
Abbrevations used in Civil Engineering Field 
A Simple Design Plan of Cottage 
Plan of the area about 648 square feet -  18'-2" x 35'-8"
Ground and First Floor Plan of House - 30' x 41' - 6"

For Testing:

Slump cone test, Silt content, Water absorption, Bulking of sand
Compaction factor test of concrete
Los Angeles Abrasion test on Aggregates