Benjamin Davis Michael Kazalis. Streams and Road Intersections Soil Drainage Class Land Cover ...
-
Upload
kristina-oneal -
Category
Documents
-
view
214 -
download
1
Transcript of Benjamin Davis Michael Kazalis. Streams and Road Intersections Soil Drainage Class Land Cover ...
Bridges Predicted to be at High Flood Risk
Benjamin DavisMichael Kazalis
Streams and Road Intersections Soil Drainage Class Land Cover Predicated Precipitation Change Flood Zones Bridges at Risk Bridge Condition
Factors to Consider
Well drained areas assigned a value of 1
Moderately well drained areas assigned a value of 2
Poorly drained areas assigned a value of 3
Soil Drainage Class
Forests and shrubs get a value of 1
Wetlands and open water get a value of 2
Developed lands and cultivated crops get a value of 3
Land Cover
Looked at the projected change in 50 years Precipitation is projected to increase
everywhere in Oswego County in 50 years Split these increase into three groups
◦ Low increase was given 1◦ Medium increase was given 2◦ Large increase was given 3
Predicted Precipitation
Soil Drainage Class Land Cover Road and Stream Intersection Predicted Precipitation change
Combining Factors
Low Risk (X, X500) - given a 1
Medium Risk (VE) - given a 2
High Risk (A, ANE, ANI, AO) – given a 3
Flood Zones
With all of the factors considered there are still a significant amount of high risk flood areas
We decided to consider only bridges at a flood risk
Consider Bridges
The bridge file contains the condition of each bridge as a value from 253 – 999, with 999 being the best condition.◦ Bridges with values of 801 – 999 were assigned minimal◦ Bridges with values of 501 – 800 were assigned moderate ◦ Bridges with values of 376 – 500 were assigned high◦ Bridges with values of 253 – 375 were assigned critical
Bridge Condition
Questions?