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Louisiana Contractor HIGHWAY, STREET, AND BRIDGE CONSTRUCTION Trade Examination Practice Test

Highway, street, and bridge construction applies earthwork, drainage, paving, and concrete-placement practices to public transportation infrastructure. This practice material samples field decisions such as shaping ditches to grade, preparing subgrade before pavement placement, compacting embankment in lifts, and consolidating bridge-deck concrete around reinforcing steel.

Exam overview

Exam providerLouisiana State Licensing Board for Contractors
Exam code2
CategoryContractor Licensing

About the Louisiana Contractor HIGHWAY, STREET, AND BRIDGE CONSTRUCTION Trad… Exam

Construction decisions affect roadway stability, drainage, and safe transitions between work stages. Crews use grade references such as stringlines to control curb placement, proof-roll subgrades to identify weak areas, and place fill in controlled lifts so compaction reaches the intended depth. Drainage work includes shaping ditches to plan dimensions and managing pipe outlets to limit erosion where the design calls for protection. Other sampled situations involve preventing water from being trapped at pavement edges, keeping excavated soil away from trench edges when practicable, and addressing overhead electrical hazards during equipment operations. Bridge-deck placement requires consolidating fresh concrete around reinforcing steel to reduce voids. Before a roadway opens to traffic, contractors also need to consider completion and readiness checks appropriate to the work. These topics connect plan interpretation and field control with decisions about materials, equipment, drainage, and construction sequencing.

Sample Practice Questions

Review a selection from this exam's published US Practice Tests practice bank.

Question 1

A highway crew is placing a granular shoulder along a paved travel lane. Which practice best helps prevent water from being trapped at the pavement edge?

  1. AShape the shoulder to drain away from the pavement as shown in the plans
  2. BPlace a narrow strip of fine soil directly against the pavement
  3. CCompact the shoulder only at its outer edge
  4. DRaise the shoulder above the pavement surface
Show answerCorrect answer: A

A properly shaped shoulder provides a path for surface water to drain away rather than ponding against the pavement edge, where it can contribute to deterioration.

Question 2

A contractor is preparing to open a newly built roadway segment to traffic. Which action is most appropriate before the opening?

  1. ARemove or address temporary hazards and confirm required traffic-control devices are in place
  2. BOpen the road as soon as the last truck leaves, regardless of remaining work
  3. CLeave construction equipment in the shoulder as a warning to drivers
  4. DRemove all signs so drivers can determine the route on their own
Show answerCorrect answer: A

Before opening a roadway, the contractor should ensure the traveled way is ready for use, hazards are addressed, and required signs and other traffic-control devices are appropriately installed.

Question 3

A highway contractor is planning work near overhead electrical lines. What is the safest general approach for equipment operations in the area?

  1. ADetermine required clearances and controls before work, and keep equipment outside them
  2. BRely on the equipment operator to judge clearance by eye while working
  3. CMove the lines by pushing them aside with a nonconductive tool
  4. DOperate normally if the equipment tires are dry
Show answerCorrect answer: A

Work near energized overhead lines requires advance planning to identify applicable clearance requirements and controls. Visual estimates or assumptions about equipment condition are not dependable safeguards.

Question 4

A roadway has a newly constructed outlet where a drainage pipe discharges onto an unpaved area. What feature can help reduce erosion at the outlet when required by the design?

  1. AAn energy-dissipation or outlet-protection measure suited to the site
  2. BA plug placed at the pipe end
  3. CA raised soil berm directly across the discharge path
  4. DA layer of loose topsoil immediately downstream
Show answerCorrect answer: A

Discharge can have enough velocity to erode soil. An appropriately designed outlet-protection or energy-dissipation measure reduces flow energy and helps protect the receiving area.

Question 5

Why should excavated material be kept away from the edge of a deep trench when practicable?

  1. AIts weight can increase the risk of trench-wall failure and falling material
  2. BIt prevents workers from measuring the trench depth
  3. CIt causes the soil to become waterproof
  4. DIt eliminates the need for protective systems
Show answerCorrect answer: A

Spoil piles and equipment loads near a trench can add surcharge pressure to the trench walls. Keeping them back helps reduce collapse hazards, though it does not replace required protective measures.

Question 6

During concrete placement for a bridge deck, what is the main reason to consolidate fresh concrete around reinforcing steel?

  1. ATo help remove entrapped air and fill the space around the reinforcement
  2. BTo increase the water content after the concrete has begun to set
  3. CTo expose reinforcing bars for easier painting
  4. DTo make the concrete set immediately
Show answerCorrect answer: A

Proper consolidation helps fresh concrete flow around reinforcement and reduces voids. Poor consolidation can leave honeycombing and weaken the finished member.

Question 7

A contractor is compacting an embankment in multiple lifts. Why is the fill typically placed and compacted in controlled lift thicknesses?

  1. ASo compaction effort can reach the material throughout each layer
  2. BSo the embankment can be built without checking moisture
  3. CSo each lift remains loose beneath the next one
  4. DSo the finished slope needs no grading
Show answerCorrect answer: A

Controlled lift thickness allows compaction equipment to densify the material more uniformly through the layer. Oversized lifts can leave poorly compacted zones below the surface.

How to use this practice test

The free practice session presents up to 20 random questions from the available bank of 50. Use each question to test field judgment on earthwork, drainage, paving, bridge concrete, and work-zone safety. Results appear after the session, helping you identify which sampled decisions to revisit.

Preparation tips

  • Compare ditch and curb cross-sections with plan grades, and identify how a stringline helps maintain the intended elevation and alignment.
  • Review why proof-rolling is performed before pavement layers and how weak or yielding subgrade areas affect subsequent construction.
  • Work through embankment placement in lifts: connect lift thickness, moisture conditioning, and compaction to uniform support.
  • Study water-control details at pavement edges and pipe outlets, including how grading or designed outlet protection can reduce trapped water and erosion.
  • For bridge-deck concrete, distinguish consolidation around reinforcing steel from placement and finishing, and review how overhead-line hazards affect equipment planning.
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