AUS-HYDR 01 - Australia Drainage problems are probably the most damaging to roads, either because they are not properly constructed or they are not maintained, as in this picture showing a culvert drain becoming a major gully that will eventually cut back into the road
MAD-HYDR01 Madagascar. If bridge abutments are not properly maintained and stabilized the bridge may collapse or become a stand alone impassable structure
SEN-HYDR01 - Senegal - If road side drains are not properly maintained they quickly fill with upslope detrius - top left - and subsequently rainwater floods the road and will ultimately damage it
AUS-HYDR02 - Australia this culvert and drain if protected by vetiver would assure protection of this road
AUS-HYDR03 - Australia this culvert and drain protected by vetiver
AUS-HYDR04 - Australia this culvert and road fill protected by vetiver. Vetiver is an ideal way of strengthening the interface of soil and concrete
AUS-HYDR05 - Australia this culvert and road fill should be protected by vetiver
PHL-HYDR01 Philippines - This culvert/fill interface has been protected with vetiver
AUS-HYDR05 - Australia this large culvert is being undercut. It should be reshaped and protected with vetiver
AUS-HYDR06 - Australia this large culvert is now protected by vetiver
MLA-HYDR01 - Malaysia. Some of Malaysia's large expressways have associated major culverting needs to assure removal of flood water through cross drainage systems. This and the following image shows the treatment of such drains with vetiver
MLA-HYDR02 - Malaysia. Some of Malaysia's large expressways have associated major culverting needs to assure removal of flood water through cross drainage systems. This and the following image shows the treatment of such drains with vetiver. Highway is to the left of image
MLA-HYDR03 - Malaysia. Some of Malaysia's large expressways have associated major culverting needs to assure removal of flood water through cross drainage systems. This and the following image shows the treatment of such drains with vetiver
MLA-HYDR04 - Malaysia. Some of Malaysia's large expressways have associated major culverting needs to assure removal of flood water through cross drainage systems. This and the following image shows the treatment of such drains with vetiver
MLA-HYDR05 - Malaysia. Some of Malaysia's large expressways have associated major culverting needs to assure removal of flood water through cross drainage systems. This and the following image shows the treatment of such drains with vetiver
MLA-HYDR06 - Malaysia. Some of Malaysia's large expressways have associated major culverting needs to assure removal of flood water through cross drainage systems. This and the following image shows the treatment of such drains with vetiver
MLA-HYDR07 - Malaysia. Some of Malaysia's large expressways have associated major culverting needs to assure removal of flood water through cross drainage systems. This and the following image shows the treatment of such drains with vetiver
MAD-HYDR02 Madagascar - A culvert in a rural road that annually disappeared. Once stabilized with vetiver, this last one has withstood 3 cyclones and 8 rainy seasons
ELS-HYDR01 - El Salvadore This type of VS protection at the fill /culvert interface is essential if road washouts are to be avoided at the time of heavy flooding
ELS-HYDR02 - El Salvadore This type of VS protection at the fill /culvert interface is essential if road washouts are to be avoided at the time of heavy flooding
ELS-HYDR03 - El Salvadore This type of VS protection at the fill /culvert interface is essential if road washouts are to be avoided at the time of heavy flooding
AUS-HYDR07 - Australia this large culvert is now protected by vetiver
AUS-HYDR08 - Australia this culvert is now protected by vetiver
AUS-HYDR09 - Australia this inflow end of a culvert is protected by vetiver. This should help keep large objects and sediment from blocking the culvert
MAD-HYDR03 - Madagascar - This bridge abutment and river bank approaches have been stabilized with vetiver
AUS-HYDR10 - This bridge abutment and ban has been stabilized with vetiver
PHL-HYDR02 Philippines - Apart from protecting the cut slope of this road in the Philippines the vetiver hedges will prevent soil and rocks filling this road side drain
ELS-HYDR04 - El Salvadore A ladder drain carries run off down this vetiver protected fill slope
SEN-HYDR02 - Senegal - If road side drains are not properly maintained they quickly fill with upslope detrius - top left - and subsequently rainwater floods the road and will ultimately damage it
SEN-HYDR03 - Senegal - If road side drains are not properly maintained they quickly fill with upslope detrius - top left - and subsequently rainwater floods the road and will ultimately damage it
CHN-HYDR01 Vetiver stabilizes this very steep slope and allows water to drain into concrete covered drain at bottom of slope
THA-HYDR01 - Thailand - Vetiver helps keep this drain sediment free
ELS-HYDR05 El Salvadore - Vetiver helps keep this drain sediment free
ELS-HYDR06 El Salvadore - concrete/vetiver interface - perfect job
CHN-HYDR02 Vetiver stabilizes this steep slope and will also help keep the drain free of sediment
AUS-HYDR11 Vetiver stabilizes this steep slope and will also help keep the drain free of sediment
MAD-HYDR03 Madagascar - Vetiver planted at the bottom of this rock slope helps to keep the drain sediment free
AUS-HYDR12 Vetiver stabilizes this side drain - helps to reduce gullying and cut -back
ELS-HYDR07 El Salvadore - concrete/vetiver interface - perfect job
MAD-HYDR04 Madagascar - Vetiver planted along the approach bank to a bridge and on the abutments
AUS-HYDR13 Vetiver stabilizes this bank and helps reduce sewdiment flows on to the road below
AUS-HYDR14 Vetiver stabilizes this side drain - helps to reduce gullying and cut -back
AUS-HYDR15 Vetiver stabilizes this side drain - helps to reduce gullying and cut -back
AUS-HYDR16 Vetiver stabilizes this side drain - helps to reduce gullying and cut -back
