A representative example of a FlowGuard report. Figures are illustrative, not from a real property.
FlowGuard
Site Flood-Risk Assessment
Example Property · Sample Estate, Lagos · Prepared by FlowGuard · Sample dated 12 Apr 2026
Executive summary
Sample Estate sits on low-lying ground within a mixed residential catchment, with two outfalls discharging toward a lagoon-fed channel. Under moderate rainfall the network clears adequately, but during intense, sustained events the East Channel and a silted culvert at the north boundary become the limiting points, creating ponding across the lower access road. Overall exposure is assessed as High. Four priority actions would materially reduce the site's disruption risk before the next wet season.
Overall risk score
74
/ 100
High risk
Blended from terrain & elevation, water proximity, rainfall exposure and recorded flood history for the site and its immediate catchment.
Drainage network map
Schematic of the primary drains, inlets and outfalls with the critical points identified during assessment.
Priority issues
East Channel undersized for peak flowBacks up during intense rainfall; drives ponding on the lower access road.Critical
North boundary culvert siltedEstimated 40% capacity loss; reduces the network's ability to clear.High
Pond outfall partially obstructedVegetation and debris restrict discharge at the lagoon edge.High
Main Gate inlet grating damagedAllows coarse debris into the channel, accelerating silt build-up.Moderate
Recommendations
Clear and desilt the North boundary culvert to restore full capacity before the wet season.
Assess the East Channel for re-profiling or an additional relief path to handle peak flow.
Clear vegetation and debris at the pond outfall and schedule recurring maintenance.
Replace the Main Gate inlet grating and add a silt trap to reduce downstream accumulation.
Establish continuous monitoring on the East Channel and North culvert to catch build-up early.
Action plan
Action
Priority
Timeframe
Desilt North boundary culvert
High
Within 2 weeks
Clear pond outfall & set maintenance cycle
High
Within 2 weeks
Replace inlet grating + add silt trap
Moderate
Within 1 month
East Channel capacity study
Critical
Within 1 month
Deploy Sentinel monitoring on critical points
High
Before wet season
This document is an illustrative sample created for demonstration. Property, figures, map and findings are representative examples and do not describe any real site. A FlowGuard assessment produces findings specific to your property.