HomeMy WebLinkAboutUndated Overall EvaluationBLOSSOM DITCH: OVERALL EVALUATION
The properties along the Blossom Ditch incorporate a 20' drainage right of way, inside the
rear property lines for a length of 2300'. The ditch was originally contained within this 20'
R.O.W. However, with the passage of time, the banks have eroded back between 5' and
15' out of the drainage R.O.W. causing problems (some severe) for residents with
structures along this ditch line. Structures Include pools, decks, garage, and fences
located outside of the drainage R.O.W.
The flow line of the Blossom Ditch has eroded the toe of the slope causing the ditch banks
to erode back out of the R.O.W. This condition has elevated the flow line 12" to 24" above
the design elevation, causing the lateral ditches running into the Blossom Ditch to hold 12"
to 24" more water than originally Intended. This in turn has raised the water table In this
area, hindering front swale drainage.
It is my recommendation that we (the City) restore the ditch banks back to their original
location and the flow line back to it's original elevation. I feel the City could possibly be
liable for damages to structures located along the Blossom Ditch due to erosion.
TKS/dl
File
BLOSSOM DITCH EVALUATION
BEGINNING WEST END, WORKING EAST
1197 Moderate to severe erosion, heavy vegetation, ornamental shrubs along existing
top of bank. Homeowner has built small retaining wall to minimize erosion.
Top Of Bank To Top Of Bank = 35' to 40' Flowline = 10' Wide
1 -LOT Moderate erosion, light vegetation.
Top Of Bank To Top Of Bank = 25' to 30' Flowline = 8' Wide
1191 (Double lot) Moderate erosion, heavy vegetation, fence along sides and rear of
property.
Top Of Bank To Top Of Bank = 35' Flowline = 8' to 10' Wide
1179 Moderate erosion, moderate to heavy vegetation. Homeowner has ornamental
shrubs along top of ditch.
Top Of Bank To Top Of Bank = 30' Flowline = 12' Wide
1 -LOT Moderate erosion, light vegetation, top of bank.
Top Of Bank To Top Of Bank = 30' Flowline = 10' Wide
1167 Moderate erosion, heavy vegetation. Homeowner has ornamental shrubs.
Top Of Bank To Top Of Bank = 30' Flowline = 10' Wide
4 -LOTS Moderate erosion, light vegetation.
Top Of Bank To Top Of Bank = 35' to 40' Flowline = 10' to 12' Wide
1131 Moderate erosion, moderate vegetation.
Top Of Bank To Top Of Bank = 30' Flowline = 13' Wide
1125 Moderate to severe erosion, pool deck elevation is approximately 9' above ditch
flowline and erosion extends back to corners of the pool deck. Vegetation on ditch
bank is light.
Top Of Bank To Top Of Bank = 35' Flowline = 10' Wide
1 -LOT Moderate erosion, light vegetation.
Top Of Bank To Top Of Bank = 35' Flowline = 10' Wide
1113 Moderate erosion, light vegetation.
Top Of Bank To Top Of Bank = 35' Flowline = 8' to 10' Wide
5 -LOTS Moderate erosion, light vegetation.
Top Of Bank To Top Of Bank = 35' Flowline = 8' to 10' Wide
1073 Moderate to severe erosion, heavy vegetation.
Top Of Bank To Top Of Bank = 30' to 35' Flowline = 8' Wide
1069 Moderate to severe erosion, heavy vegetation. Homeowner has ornamental shrubs
along ditch top.
Top Of Bank To Top Of Bank = 30' to 35' Flowline = B' Wide
1065 Moderate to severe erosion, heavy vegetation. Homeowner has fence along sides
and rear of property.
Top Of Bank To Top Of Bank = 30' to 35' Flowline = 10' Wide
2 -LOTS Moderate erosion, light vegetation.
Top Of Bank To Top Of Bank = 30'
1053 Moderate to severe erosion, moderate vegetation.
rear of property with some erosion under fence.
Top Of Bank To Top Of Bank = 30'
2 -LOTS Moderate to severe erosion, light vegetation.
Top Of Bank To Top Of Bank = 30' to 35'
1041 Light to moderate erosion, moderate vegetation,
shrubs along rear of property.
Top Of Bank To Top Of Bank = 25'
1037 Moderate to severe erosion, heavy vegetation
exposed tree roots out of the right of way.
Top Of Bank To Top Of Bank = 30' to 35'
Flowline = 10' Wide
Homeowner has fence along
Flowline = 10' to 12' Wide
Flowline = 10' Wide
Homeowner has ornamental
Flowline = 10' Wide
Some areas of erosion have
Flowline = 10' Wide