2. Overview of the affected area.
N
Historic Flooding in Colorado - September 2013
Lyons and Longmont, Colorado
Lyons
Longmont
Boulder
Denver
3. US Highway 36
North St. Vrain Creek
South St. Vrain Creek
DigitalGlobe Natural Color Imagery, September 14, 2013
Overview of flooding in Lyons
Lyons, Colorado
40.224503N 105.268955W
4. US Highway 36
St. Vrain River
DigitalGlobe Natural Color Imagery, September 14, 2013
Damage to bridges and US Highway 36
Lyons, Colorado
40.224503N 105.268955W
Lyons Junior-
Senior High School
Lyons Waste Water
Treatment Plant
McConnell Drive
bridge washed out
Damage to US Highway 36
5. US Highway 36
North St. Vrain Creek
South St. Vrain Creek
DigitalGlobe Natural Color Imagery, September 14, 2013
Flooding in Lyons
Lyons, Colorado
40.221171N 105.270792W
State Highway 7
Considerable flooding in
area of confluence of North
and South St. Vrain Creeks
6. Water release through
emergency overflow spillway
Controlled water
release at base of dam
DigitalGlobe Natural Color Imagery, September 14, 2013
Button Rock Dam and Reservoir
West of Lyons, Colorado
40.217951N 105.363785W
Button Rock Reservoir
Lyons is 5 miles downstream via
North St. Vrain Creek
7. Flooded areas and
damaged roads
State Highway 7
South St. Vrain Creek
DigitalGlobe Natural Color Imagery, September 14, 2013
Flooding upstream in South St. Vrain Creek
Lyons, Colorado
40.210411N 105.281678W
8. DigitalGlobe Natural Color Imagery September 13, 2013
N
Flooding along St. Vrain River
Lyons to Longmont, Colorado
40.185989N 105.174558W
Longmont
Airport
Area most affected by flooding
along the St. Vrain River
City of Longmont
Town of Lyons
9. DigitalGlobe Natural Color Imagery, September 13, 2013
N
Flooding along St. Vrain River near Airport Road
Longmont, Colorado
40.172642N 105.148429W
AirportRoad
St. Vrain river channel
Longmont Vance
Brand Municipal
Airport
approximately
1mile
Twin Peaks
Golf Course
HoverStreet
West 9th Avenue
10. DigitalGlobe Natural Color Imagery, September 13, 2013
Heavy flooding near Price Road and Boston Avenue
Longmont, Colorado
40.159490N 105.112523W
St. Vrain river channel
11. DigitalGlobe Natural Color Imagery, September 13, 2013
Flooding near Twin Peaks Golf Course
Longmont, Colorado
40.175535N 105.146825W
The Greens
neighborhood
BNSF railroad
Twin Peaks Golf Course
12. DigitalGlobe Natural Color Imagery, September 13, 2013
Flooding near Fairgrounds along Hover Street
Longmont, Colorado
40.161590N 105.128900W
Boulder County
Fairgrounds
St. Vrain river channel
13. DigitalGlobe Natural Color Imagery, September 13, 2013
Left Hand Creek flooding near Pike Road
Longmont, Colorado
40.137136N 105.116679W
Left Hand Creek
14. DigitalGlobe Natural Color Imagery, September 14, 2013
Flooding along Boulder Creek at 95th Street
Eastern Boulder County, Colorado
40.050315N 105.131200W
Boulder Creek channel