Enhance the road sub-grade

Hazards
Assets
Measure Type
Gray Engineering vs Nature Based Solutions

Details

Enhance and harden sub-grade to prevent damage/failure to pavement structures caused by inundation.

Capital Cost

High

Operations & Maintenance

Low

Effectiveness

Moderate – will decrease pavement failure after flood events in addition to reducing long term costs associated with repair and maintenance.

Flexibility

Low – it is generally cost-prohibitive to modify fixed infrastructure once constructed, however measure could be rolled into ongoing paving schedules.

Barriers to Implementation

Cost; difficult to get approval/funding to implement

Equity

Ensure the availability of alternate public transportation routes so that capital improvement/maintenance projects do not impede commuting for public-transportation dependent communities and equity focus areas

References