KDOT Highway & Bridge Inspection Procedures 4 — Questions and Answers
Question 1: Which of the following pavement distress types is exclusively associated with rigid (Portland cement concrete) pavement?
- Rutting
- Pumping (Correct answer)
- Alligator cracking
- Shoving
Correct answer: Pumping
Pumping is a distress unique to rigid pavement where fine material and water are ejected from beneath slabs under traffic loading.
Question 2: A Kansas bridge inspector identifies corrosion on a steel bearing assembly that prevents movement. This condition primarily affects which bridge performance aspect?
- Load carrying capacity of the girder
- Ability to accommodate thermal movement and rotation (Correct answer)
- Waterproofing of the substructure
- Deck drainage
Correct answer: Ability to accommodate thermal movement and rotation
Fixed or seized bearings prevent thermal expansion and contraction movements, inducing unintended forces into girders and substructure elements.
Question 3: Under KDOT procedures, what document must an inspector complete when a bridge requires immediate closure due to a safety hazard?
- Standard Bridge Inspection Report
- Load Rating Worksheet
- Emergency Inspection Report with notification to KDOT (Correct answer)
- Annual Condition Survey
Correct answer: Emergency Inspection Report with notification to KDOT
When immediate closure is required, inspectors must complete an Emergency Inspection Report and notify KDOT Bridge Management promptly to initiate response actions.
Question 4: What is the purpose of a Kansas bridge's sufficiency rating?
- To determine required inspection frequency
- To prioritize bridges for replacement or rehabilitation funding (Correct answer)
- To establish posted load limits
- To measure deck surface roughness
Correct answer: To prioritize bridges for replacement or rehabilitation funding
The sufficiency rating (0–100) is used to prioritize bridges for federal replacement or rehabilitation funding, with lower scores indicating greater need.
Question 5: An inspector observes map cracking (crazing) on a concrete bridge deck. This pattern is most commonly associated with:
- Fatigue from repeated truck loading
- Alkali-silica reaction or plastic shrinkage cracking (Correct answer)
- Corrosion of primary reinforcement
- Freeze-thaw damage only
Correct answer: Alkali-silica reaction or plastic shrinkage cracking
Map cracking (crazing) in concrete decks is typically associated with alkali-silica reaction (ASR) or plastic shrinkage occurring before the concrete hardens.
Question 6: During a high-water event in Kansas, a bridge inspector is called to assess a flooded crossing. The safest protocol is to:
- Wade across the stream to check scour
- Observe from shore, document water level and debris, and not attempt underwater inspection until flood recedes (Correct answer)
- Drive across the bridge slowly to test structural response
- Probe beneath the bridge with a rod from the deck
Correct answer: Observe from shore, document water level and debris, and not attempt underwater inspection until flood recedes
During active flooding, inspectors should observe and document from a safe location, never entering fast-moving or debris-laden water until it recedes.
Question 7: Which inspection finding would most directly trigger a load posting or bridge closure recommendation under KDOT policy?
- Minor surface rust on guardrail
- Significant loss of effective cross-section in a primary load-carrying member (Correct answer)
- Cracked approach pavement
- Faded lane markings on the deck
Correct answer: Significant loss of effective cross-section in a primary load-carrying member
Significant section loss in primary load-carrying members reduces load capacity below design levels, potentially requiring load posting or closure for safety.
KDOT Highway & Bridge Inspection Procedures 4
Which of the following pavement distress types is exclusively associated with rigid (Portland cement concrete) pavement?