PROJ00158

• Contract/PO #: C150098
• Contractor Name: Lake Henry Reservoir Company
• Contract Type: Loan
• Water District: 17
• County: Crowley
• Bill Number: HB 02-1152
• Loan Projects - Doc Type: Feasibility Study

The dam is well maintained and closel monitored. The lack of an emer enc. s_iIIwa and extensive see a e alon
and bevond the toe of /he south embankment remain siQnificant safety concerns_

~.. E
_ 0 .
'."
0-6 [~1
c: III o~.:
Vo 40 .... 40 0
4o~O-~
.g...;Z:;
:Ei~:!
o ", 0 Vo ",
~~.::: ~ E
- (,) 0 (,) 0
g~~~.::
'g ~ :: ~ c:
~1:; ~~
.~.:~ ~::
:7> 0 -:: c: -
~ 8'j ~ ~
",.- '" 40 Q
Vo _l:: ..., .. 0
'0 <II 0._
~a~2-=
~ (,) e:7>~
.:::l~{; ~'o
,s"''''IIl2:
g' ~:s ~ =
:g ~o ~ ~
e ~ ~ ~~
Q.~ '; III e
~~: ~.g
;:.o=i:1Il
40 'Vi .. G/ .
'S-8~~ '6
C:Q.~_]:
w..,=~_
G/ ~.~3 0
T! G/ ~~ ~
(fJ~Olll;;O:
1 ~ ~.,g ~
... ", .. l= 0

A N.M1E

LAKEHE~RY

DAM I D 1 L020,

DATE
X
.
Q ,
0 ,
.
, .
0 ,
., .
.
,
,
X:
Q
0
0
0

AtJeu_LQnc.e....eAc.h..v.ea[~....___.______

.-.._-_..~--'------~..~-~-

SAFE STORAGE LEVEL RECOMMENDED AS A RESULT OF THIS INSPECTION
OFT. BELOW DAM CREST
RESTRICTED LEVEL {7 FT. BELOW SPILLWAY CREST
OFFICIAL ORDER TO FOLLOW Tr FT. GAGE HEIGHT
) n NO STORAGE-MAINTAIN OUTLET FULLY OPEN

01101) FUllSTORAGE
~ 11 02) CONDITIONAL FUll. STORAGE
011031 RECOMMENDED RESTRICTION
o (l04) CONTINUE EXISTING RESTRICTION

ACTIONS REQUIRED FOR CONDITIONAl Fl.tlSTORAGE OR M..~"",~~ ...~~....~~ 'T~,,~ "'~~T""~~, ~'~.

Perform maintenance and en ineerin i/ems asindicated.SUbm-tcom leted See a
ecifications to this office for a roval even thou h ou ma not have immediate

EXISTING INSTRUMENTATION FOUND [J {1101 NONE ~ 1111) GAGE AOO .~ {1121 PIEZOMETERS :v1 [11::11 SEEPAGE WE1AS I FLUMES
011141 SURVEY MONUMENT [J 11161 OTHER
MONITORING OF INSTRUMENTATION 1=.1 [1161 NO ~ (1171 YES PERIODIC INSPECTIONS BY ~ 111 f11 OWNER : [1191 ENGINEER

PROBLEMS NOTED: ~ (60 NONE 0 1611 ACCESS ROAD NEEDS MAINTENANCE [J {621 CATTLE DAMAGE
o (631 BRUSH ON UPSTREAM SlOPE,CREST.DOWNSTREAM SLOPE,TOE iJ641 TREES ON UPSTREAM SLOPE. CREST. DOWNSTREAM SLOPE. TOE

01661 RODENT ACTIVITY ON UPSTREAM SlOPE.CREST,DOWNSTREAM SLOPE. TOE
0(67) GATE AND OPERATlNG MECHANISM NEED MAINTENANCE 01681 OTHER

0(66) DETERIORATED CONCRETE.FACING,OUTlET. SPILLWAY

Based on this Safety Inspection and recent file review, the overall condition is determined to

01711 SATISFACTORY

~ 172) CONDITIONAllY SATISFACTORY

01731 UNSATISFACTORY

...._~._--~-_.._--~-_._.__._~---_._-

e,controf
lans /0

lans desi ns and
in construction.

INS CTED BY

Owner'.
Slgn.lure

ITEMS REQUIRING ACTION BV OWNER
TO IMPROVE THE SAFETY OF THE OAM

MAINTENANCE . MINOR REPAIR. MONITORING
0(801 PROVIDE ADDITIONAL RIPRAP:
~ 1811 LUBRICATE AND OPERATE OUTLET GATES THROUGH FULL CYCLE:
[J 1821 CLEAR TREES AND/OR BRUSH FROM:
0(831 INITIATE RODENT CONTf'Ol PROGRAM AND PROPERLY BACKFill EXISTING HOLES:
01841 GRADE CREST TO A UNIFORM ELEVATION WITH DRAINAGE TO THE UPSTREAM SLOPE:
0186) PROVIDE SURFACE DRAINAGE FOR:
0(861 MONITOR:
~ IB71 OEVElOP AND SUBMIT AN EMERGENCY PREPAREDNESS PLAN:
01881 OTHER
[J (89) OTHER

. --.-.---..-----... --_.----,-~--

V~1:ing..plaILas....n~Ceji:~~.arv

ENGINEERING. EMPLOY AN ENGINEER EXPERIENCED IN DESIGN AND CONSTRUCTION OF DAMS TO: (Plans and SpeclfIcatlons must be approved by State Engineer poor 10 COf1s1ruchon )
0190) PREPARE PlANS AND SPECIFICATIONS FOR REHABILITATION OF THE DAM;
0191) PREPARE AS .BUIlT DRAWINGS Of;
0(92) PERFORM A GEOTECHNICAl INVESTIGATION TO EVALUATE THE STABilITY OF THE DAM:
o {931 PERFORM A HYDROLOGIC STUDY TO DETERMINE REaUIRED SPIllWAY SIZE:
~ 1941 PREPARE PlANS AND SPECIFICATIONS FOR AN AOEaUATE SPILLWAY: ~sl!ld on 'LH~[01oslV-Stud'l-1:2-.mWledolJlHld...h'tJbuffic8
D (961 SET UP A MONITORING SYSTEM INCLUDING WORK SHEETS. REDUCED DATA AND GRAPHED RESULTS;
o (g61 PERFORM AN INTEANAllNSPECTION OF THE OUTlET:
~ 197) OTHER: .submit completed seepaae enntrol olanA to thiA O~1ll for review and...apJ1[Q.\liI1
o (98) OTHER:
01991 OTHER:

Engll'"l_',
Slgnlltu.e

OWNERIOWNER'S REPRESENTATIVE

DATE:

IZ-//.y/t::rJ
2,'