Questions and Answers.
For whom are headlands constructed? - Answer Property Owners
Why are headlands constructed? - Answer So farm machinery can turn around
A single line rice levee keeps the water in flooded fields from - Answer draining into the right-
of-way.
An irrigation canal is used to carry - Answer water.
Are the canals and levees discussed in this section constructed inside or outside of the R/W
line? - Answer Outside
Are headlands constructed inside or outside of the R/W lines? - Answer Outside
Special Details contain the construction items that are _________________ yet
_______________to the individual project. - Answer NOT typical yet specific
Small arrows point in the direction of the ___________________________ of surface water. -
Answer natural drainage flow
RCB - Answer Reinforced Concrete Box Culvert
CMPA - Answer Corrugated Metal Pipe Arch
DA - Answer Drainage Area
RCP - Answer Reinforced Concrete Pipe
INV - Answer Inverted Elevation
CMP - Answer Corrugated Metal Pipe
, _____________________________ maps show basic drainage design data including design
criteria for cross-drain structures. - Answer Design drainage
_____________________________ maps are part of the survey information for most projects. -
Answer Existing drainage
The side-to-side measurement of a pipe arch is called a _______________. - Answer span
Dimensions on drainage structures are _________________ dimensions. - Answer inside
When building roads, it is important to ________________ the impact on the environment. -
Answer minimize
Allowable Headwater Elevation information is found in the ____________________________
table. - Answer Hydraulic Summary
The _________________________ contains the description of soils on a Subgrade Soil Survey
Sheet. - Answer sample legend
Which soil groups are most preferred when building a road? - Answer lower A-group
numbers
PI - Answer Plasticity Index
LL - Answer Liquid Limit
NP - Answer Not Plastic
A-3 - Answer Soil group classification number
SL - Answer Silty Loam
Soil group A-8 contains __________________________. - Answer organic material
Most of the time the ________________________________________ decides on the number
soil samples needed for the project. - Answer District Laboratory Engineer