FLOOD02336

• Designation Number: 57
• County: Adams
• County: Arapahoe
• County: Douglas
• Community: Denver Metro Region
• Stream Name: Lena Gulch
• Basin: South Platte
• Title: Master Drainage Plan - Revision to Lena Gulch on sheet 8 of Volume II
• Date: 3/1/1976
• Designation Date: 3/1/1976
• Floodplain - Doc Type: Floodplain Report/Masterplan

1\1-3

TABLE IV-l

TYP I CAL STRUCTURAL AND FIJRN I SH I NG VALUE~,

Locatlonsl
Type

___----.J~)ta 1
S t rue!,!..':.!c!.

Dollar Values
Fu!nlsl~

Wheat Ridge
House
Conmle rcl a 1 un It

$20,000
$40,000 - $~J,OOO

$ 7,000
$10,000 - $40,000

Lakewood
House

$50,000

$15,000

Jefferson County
House
Conm,erclal unIt
Traller

$20,000 - $50,000
$40,000
$ 7,500

$7,000 - $15,000
$10,000
$ 5,000

Golden
TraIler

$ 7,500

$ 5,000

A plot of the probability of a certain frequency event versus the mone-
tary damages resulting from the event is the Probability ~istribution'
of Flood Damages. The area under the curve gives the annual expected
damages.

Figures IV-I, 2, 3 and 4 give the Flood Damage Probabi lity Distribution
and annua 1 damages for Lena Gu 1 ch in Wheat Ridge, Lakewood, Je He rson
County and Golden. Note that these figures are not proportioned to the
tributary area of each entity. Table IV-2 presents a tabulation of
damage in each governmental entity.

Damage if Maple Grove Reservoi r Were Removed. Once the flood flo",s were
determined for future conditions with ~Iap~ie-Grove Reservoir removed, the
flood plain was again determined. This information was then used to
determine the Flood Damage Probability Distribution and annual damages
without Maple Grove Reservoir. See Figure IV-5. The same valuation of
structures, contents and damage curveS were utilized in this deter-
mination as were used in Phase A, so that Figure 1\1-5 would relate di-
rectly to Figures IV-I, 2, 3 and 4. fhe ,-eader can refer to Section IX
for an evaluation of Maple Grove Reservoi,-.