-------,?~1--:R---r-----~-S--:--~ ------------ --/II? ~

--~~---~~~---------~~~

APPROPRIATION TITLE: .Conatruct Ion General - 1.oe81 Protection (Flood .Control)

PIOJIDCT:' Lake Pontel\artraln. 1.ou18la .... and Vicinit

LOCATION: Th. project 18 located In St • . Chart .. , Jeff.raon, Orl.an., St. Ber ... rd, aod St. T ..... ny Pariahe. In "iiiiUtiieHt 1.oulda ... In the llllneul Yielnlty of New Orl .. n. ad.lacent to Lak. Pontehartraln.

A11l'II0\l.lUTION: Flood .Control Act of 1965 and Watn leaoure .. D .... lo ... nt Act of 1974

BENEPIT TO COST RATIO: The r ... dnilll benefit-reedninJt eolt ratio 11 16.2 to 1 at 3-1/8 percent. The benefit to eoat ratio for the n.c81 year for 1Ihlch .Conan .. appropriated initial eonatruetion fundi (n 1967) _I 17.6 to 1. Th. benefit to eo.t ratio 18 baaed on the 1>I"0ject funct lonl". Independent 1,.

Ace ... SUMMARIZED FINANCIA+ DATA % of E.t.

fed • . Coat Eat I .. ud Total Appropriat ion Requir_nt $468,000,000

future Non-fed.ral Retebuu".nt Eit laated federal .1';08t (Ult laate) 8atlaated Non-radaral COlt

Re labur.eaent: Hurricane Protection

.Caah .Cont rlbut Ion Other

Total Eatlaatad Project COlt

A11ocationa to 30 Sept .. ber 1982

$29,000,000

$29,000,000

439,000,000 206,000,000

134,029,000 42,971,ooo~~~~~~

$645,000,000

Cont I_illl leaolut ion AUowanco for n 1983 A110eat Ion for " 1983

127,564,000 18,800,000 14,800,000 1/

142,364,000 -Allocot 10na to Date

___ ~"'''1l0cat10nl Requelted Por " 1984 16,800,000 Scheduled klance to Coaplete After" 19114 144,286,000 U ... ehaduled klance toCOIIplete After" 1984 164,550,000

1/ Retlecta a reduction of $.,000,000 a .. lsned a ... "ins. and - .Uppale.

30

34

STATUS: (1 January 1983) PERCINI £OMPLETION

.COMPLET8 SCHIDOLI Entire Project ~ Sap 1991 2/

Barrier Unit 1 Ind.nnite 3/ New Orleans East Unit 70 Sep 1988 -New Orleans West Unit 0 Inde finite 4/ Mandeville Unit 0 Nov 1984 -.Chalmette Unit 63 Sep 1991

2/ ExclL1des Barrier and New Orleans West - Units Io'hich have indefinite completion

dates. (Se. "Other Informat 10n ... ) 3/ .Completion schedule indefinite pending

com.pletion of the restudy, resubmlssion of the Environmental Impact Statement and final clearance in the courts. (See

~ ··Other Information . .. )

.Completion schedule tndeftn1te pending completion of additional detaHed envl ronme:nta l studies . (See. "Other Infomat ton. H

)

DI"lllon: Lover Millissippi Vall.y Dilt rlet: New Orleans Ra.lon: 1.o .... r Mlululppl Lake Pont chart raln, 1.oula1a ... , .nd Vielnlt, (Hurr le .... Proteet 10n)

31 JAN 1983 127

~

••

.!:!!!!.!. : Avera .. heilht: 13 feet Lenath: 80 .n ..

0.. ,Cloaurea: 9

Control Structure.: Chef Menteur: [,200 feet vide Riloleta: 1,100 teet vide Seabrook: 116 f.et vide

Pumping Pl. nt :

PIIYSICAL MTA Draina,e Structur .. :

Channela: 13.3.ilea

~: Seabrook: Riloleta:

84 feet by 800 teet 110 feet by 800 feet

Floodwalls: 15.51I1111!:!:8

Floodgate.: 3

JUSTIFICATION: The 10"lands In the 1.ake Pontchanrain tidal basin are suoject to tidal overflow. The Greater Ne" Or leans Het ro po lit 8n a rea "'hich He. In this basin .,ill cont ioue it. ra pld eCo nomic development 1n the fut ure yeats even though .eVHe damages h.ve resulted from several hurricanes in the ""st years . Hurrlcan. damages result from Burge. entering Lake Pontcharerain from Lake Borgoe through n.tural tld.l ""sse. at the Rigolet. and Chef Hentour Pass and the Inner Harbor Navigation ,C.nal. The surgos are intensified by local wind effect. and t he combination of waves and .urg~s causing oVertopping of the protective work. along the shore. of Lake Pontchartra!n. rhe eastern port 10n of the area is aloo subject to flooding by surges and ""ves that move direct ly from Lake Sorgoe and overtop the existing inadequate protective syst"'" s •• .,ard of the developed land area.. As a re.ult, rUidenee. and indust rial and commercial establiShments suffer damage, business act ivitles are disrupted, lives endangered, and h ... rds to health created . Hu rricane. much more .evere t han any of record are possibLe. In the eVent of the occurrence of such a .evore hur rica ne, cat ast roph Ie prope rt y damage and 106. of homan Ii f. ,""u ld be ex per ienced. 1.ocal interests have requested protection against these threats to life and property. The Lake Pontcharetain hurricane protect lon project will provide the nece.sary "rotect lon. The Hi •• h.lppi RivH-Gult Outlet vIa the Inner Harbor NaVigation Canol provide. a direct tidal route from t he Gulf of Hexico to Lake Pont chattrain. Consistent "ltl\ the rationale that lake levels can be co ntrolled by limiting tid.l inflo., to the lake , a lock and control .tructure complex 18 to b. constructed at the junction of the I nner Harbor Navigation .Canal and Lake Pontehartr.i" at Seabrook. The complex .. 111 provide for flood cont r Ol, salinity control , and navigation. The co.t of the Seabrook Complex Is allocated 50 percent to the hurricane proteeelon project and 50 percent t o the Mhsis'lppi Riv@[-Gulf Outlet proJect. Hurricane '"Betsy,·' in September 1965 , caused exten.lve damage and nOoding of urban area. of the New Orleans area to depths of up to 10 feet. lIunic.ne ··Camille '· occOl:red In the project are. In August 1969 and flooded areas along the Inner Harbor Navigation ,Canal. Rxtenaive flooding and overtopping of levees would have occurred in the pro ject an!:i:1 in September 1974 tf hu.rricane: ':Carmen" had cont Inued on its predicted cour-s@.

Lake Pontchartrein, Loutsiana, and Vicinity (Hurricane Pt'Ot~ctlon) 31 JM 1983

128

0!>­CT! CQ

.,.

I~ -'- .. -.,--._----

Th .... r.,. .n ..... l be ... f1t. and c1e.!aaated red.".lo_nt .re.a .ra .. follow.:

~ .... - ledndo ... at Area. (PL 89-136)

I Flood .Cont rol I (1 October 19112)

$351,7110,000 4,559,000

ParlehtCoUllt r .nd Stat. !!ll!. Subaect 1011 Louleuna

Jallan on IV (II) I

Total Annual lIaneUe. I $356,339,000

Or Ie • .,. IV (II) St . Ser ... rd IV (8) St . Chorleo IV (6) St. J oh n t he Sapt ht I V (8) St . TO""'8 ny IV (8) TAngIpahoa IV (8)

IU .. r .. tppt

Ar .. lada .. lopoant

Hancock IV (II)

PlICAL YEAR 19114, Tha raquellted .. ouat of $16,800,000 .111 be appUed a. folIo •• ,

Jaw Orl.alle laat Ulllt Illitina,

~ Harbor "nl .. tlon Canal I 'arle Io.d-Poruhora 'rotaetloll IlIlt late and ,COIIp1et.,

Inner Harbor ."l.at Ion .Canal llallt .nd lIaat Ploodw11 .Cappl111 IlIIiaearlns and Dulp Supe .... loll and AdtIlnleeratioll

Jaw on •• 1II "-lit Ullit 11111 ..... 1,. .nd D .. itll SuperYI.lolI and Adalllilltratloll

Randn111. Ualt Illitut., ~"Ille ee_11 11II1_rl,. .nd Daelp SuperYlelon .nd Ad.lnilltration

Subtotal

Subtotal

Subtotal

1 $6,1119,000

350,000 325,000 554,000

,1,041,000

$52,000

$5~:=

$1100,000 40,000 to,OOO $~

~

~ka Poatcbartr.III, Loublau, .nd V1clll1ty (I .. rrlc .... Prot.etloll) a 1 JAN 1983 129

•

I

•

Chalmet te Un it: Inlt18te and .Complete:

Station 278 to 355, 2nd Lift

,e_plete: Statlon 1121 to 1568, ht Levee En1araftent

Verret rIood ... ll; andCned.ore .Cana1 Draiulle Structure

Statlon 945-1117, 3rd Lift and Pipeline FaU"r. area, 2nd Lift

Plpe:line .Canal and. Gap .Closut"es I 2nd Lift: Engineering and Oesign Supervision and Admin1s t rat 10n

Subtotal

Crand Total

$1,195,000

.,800,000

200,000 910,000 100 ,000 590,000

$7,795,000

$16,800,000

The Mandeville Seawall will provide foreshore ptotecti.on along the shoreline at Mandeville . . Construction of tl,e final levee enlargement frOO'l Station 70S to 945, the third lift levee from Station 965 to 11 17, the second li ft on pipeline and gap c.lo5ures~ and le.vee enlargement from Station 1121 to 1568, Ve:l"r@t Floodwl!Ill, and .Creedmore .Canal Dralne.e Structure ,,111 provide a hillher dellree of interie protect lon to the .Chat_tte Unit,

IIOII-P!D!RAL .COST, Local intereat. are to bear 30 percent of the firet coat to include the fair .. rket value of an landa, •••• enta. and righte-of-vay. including borrow and disposal are •• nece ••• ry for construct tOil of the hurricane featur •• and to accoaplhh all neees ... ry alterations and relocation. to road., railroads, pipelines, cables, ""arves, drainelle structure., and other taeilitin made nec ..... ry by the construct ion ""rks. They are required to ahare ln only one-half the COlt of the Seabrook Lock, the other half beinll eonltrueted for navisat ion purpos .. at Federal expenee. In addition, local intereatl are required to contribute the capitalized cost of ope rat ion and l18intenance for lillOlats Lock. The current eat lute of project costa to be borne by local internta follo ... ,

Lake Pontchartrdn, Louil1ana, and Vicinity (Hurricane Protect Ion)

31 JAN 1983 130

~

~ I

• • •

• •

II • •

• -•

~ • - -• -. -• •

• • •

Landa .nd Dau, .. "loc.tiona .C.ah .Cont r i but 10na:

.... 01 on 30 percent of total .,roject coat leaa Seabrook .nd r.iIobura_1it

...... on 15/85 rat 10 for S •• broolr. Lock .CapitaUntlon of Oper.tion .nd Maintenance for 11101.ta Lock .. labura_nt: Hurric.ne Prot.ction

Total

Is 25,432,000 17 ,539,000

105,086,000 10,543,000 111,400,000 29,000,000

$206,000,000

Local inter.ata ara r.qulred to operate and .. Inuin aU featurea of the project works, e"cludiDl the Rlaollt a llaYlption Lock .nd Ch.nnel and the .. dified dual-purpose Seabrook Lock. Th •• n .... l coot to local Intereat. for .. iat.nance and operation la utluted at $1,069,000 includln, $443,000 for .. terlal replac_nu.

In addit1on, locel interest., throulh the e .. blnacl efforta of the Stau of Lout.tana, IDeal levee and dratnage dlatrict., and ... riah police Jurll. have .... nt an utlAated $25,366,000 bet .... en 1930-1963, ba.ed on the bast coat r.cord. a"ailabla, to iIoprove and .. intain the hurricane protection ay.t .. exiatlna .,rior to .,roject authori&ation. Available coata of r.cord are tabul.ted below:

.COIIbination of State of Louleian • Le .... District on the .Chala.tte

Orlaans I.e ... Dlstrict Ioard

• nd Lake Iorllne Le" ... Dletrict and .Chal.ette Back lI.ck Lev.. Protect ion Syate.a $ 4,410,000

12,010,000 924,000

5,022,000 3,000,000

$25,366,000

.ort of !lev Orlean. (lAvI •• dona Industrial C.nal) Pontch.rtrain Le".,1 Diatrlct Fourth Dr.ina,e Dlatrict of Jefferaon Puiah

Total

A vary ..... r. hurricane, "Batay," occurred in the projlct ar.a in Sept_ber 1965, just prior to the authorhatton of the .,rojact in Octobar 1965. £onaldarabl. da.a~e .. a done to .. ny of the exiatlna ll"ae., and local intereata i_diataly in.titutecl an accalerated rehabUitatlon prolr_ with the viev of rutoring and atrenathenin& exiating protaction prior to .uc:ceecli,. hurricane ... aon.. Only .... rk parlors.d by local intlre.ta after project authorlut Ion which confona to · tM project de.lan criteria and .ll_nt .,111 be accepted by tha United Statu a. _rk-In-kind In lieu of .,.ah contribution •

Lake Pontchartrdn, Loulatena, and Vicinity (Hu.rdcane Protect ton) S 1 JAN 1983 131

81

II

• -. .

•• • .. .. • • • - •

I

•

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STATUS or LOCAL COOPERAtION : Aa" ..... ne .. ne required for the two Independently justified pl.n •• uthorbed by .Colllre •••

11. Chal.ette Are. Plan: I

a. Orleana Lev .. Dht rlet: !lev aareeaent I of .. aUf.nee. eoverllll! .11 IDeal eooperat Ion requlrMenta and a 1 deferred .. ,.ellt plan .. authorized by Publle Lev 93-251 _re executed on 30 Harch 1976. The .. a .. urance • I vere' aceepted on behalf of tile United Statu on 7 DecMber 1977.

b. St. Barnard Pariah Pollee Jury and Leke Iorlne lealn Levee Dlatrlct: !lev joint aare_nt. of a .. uranc •• conrl .. all , local cooperation r.qulreaent. and a deferred payaent plan aa authorized by Public Lev 93-251 ....re executed on 2 April 1976. Theae a .. uranc ...... r •• eeepted on behalf of the United St.te. on 7 Dee .. ber 1977 •

1 Barrier Pl.n: I

•• Orle.n. Levee Ohtrlct: !lev .lIreeaenta of ... uranCel cover 1", all local cooperation requir_nta .nd • deferred .. ,.ellt plan .a authorhed by Public Lev 93-251 were executed on 30 Harch 1976. Tile ..... ur.nc .. were .ceepted on behalf of tile United St.t .. on 7 Dee_ber 1977.

D. i)~ _la ... ny Yarlln: Tne LOut.IAnA Office of Public: Works exeeuted an act of ••• uranee dated 8 Noveaber 1976 agreet", to fulfill .11 loeal cooperation requir .. enta for that portion of the project In St. T •• _n,. P.ri"h. The ..... ur.nce. _re .ccepted on beh.lf of the United St.t •• on 7 Dec.-ber 1977.

c. Pontchan rain Lev .. Olot rict : !lev .lIre_entl of ... ur.nc .... co"erl", .11 local cooper.tion requlr_enta .nd a deferred .. ,.ent pl.n .. authorized by Public Lev 93- 251 were .. ecuted on 20 Sept_ber 1976. On 8 Nove.ber 1976, the Loulalana Office of Publ1e Worltl aBreed to lend financial ... Ist.nee abo .. $100,000 to the Pontch.nraln Levee Dhtrlct for that portion of the Barrier Plan which 10 the reaponaibUlt,. of that levee district. Tbue a .. uranc ..... re accepted on behalf of the United State. on 7 DecMber 1977. "vlaed ••• ur.n~ •• ar. u nd.r r.vftl!v ft\r .. ha ~. r.h ... l •• Pa ••• h _ •• f ...... A# ........ _ .. _ ........

d. Jefferaon Levee District : Aa of 1 Januar,. 1919, the State of Loulalana fo ... d til. Jefferson Le .... Dlatrlct and a •• laned to It r.aponalbI11t,. for J e ffereon Pariah 1 ... ee. on tile eaat bank of the "1 •• I.alpp1 Rivu . Tbee .. l~veee toeu prev{oual,. the ruponalhlllt,. of the Poatchartraln Levee Dhtrlct. b .. bee! a .. urancel are under revb" for the J.fferson Pariah port Ion of the project •

Leite Pontchartr.tn, Lould.na, and VicinIty (Hurricane Prot.ct Ion)

!3 1 JA/j 1983 1 132

§

•

• ~

•

•

-II

COMPARISON OF FEDERAL COST ESTIHATF.S: The eurrent Fe~.ral eo.t esti.ate of $468,000,'100 is a decre .. e of $232,000,000 frOll the lateat full funding estillate ($700,000,000) lubalHed to Congre... This ehange indude • deerease. of $211,7011,,",00 for ad.1ultMnts In the eltl .. ated Inflation allovenee through the eonstruetion period, $5,566,000 baled on acre detailed projeet COlt eltillatea and $20,300,000 due to reanalyail of Pederal eOlt Iharing requirellent.. The .. <leeree,," .. re partially offaet by increaael of $5111,'10D haaed on actual bid., $251,DOO baaed on actual eDIt of eoapleted work, $3,Q42,OOD baled on delign aDdifieation. and $855,ODD baaed on a r.anair.i. Of Enlllnel'ring and Deallln requlre_nu.

STA'ruS OF EIIVIRnlMENTAL IMPAr.T STATEMENT AIm CnMPLIANCE WITH CLEAN WATER ACT: The flnal F.nviromentai Iapaet Statellent .... s flled vith the Couneil on Enviro ..... ntal Quality on 17 January 1975. By Court Order dated 3D Decellber 1977, a revised Envlro ..... nt .. l Illpact State"",nt ""s ordered. Preli.inary alternaUve plan studiea and enviro ..... ntal inve.Ugationl indicate the "hillh level" alternative to the authorized barrier plan of proteetion _riu further con.ideution. A revised Envirollllental IIft""ct Statellent for the high level nlan could be filed vith the Environlllental Protection Agency by the firet quarter of FY 1984. A reviaed Environaental Illpatt State_nt for the barrier nlan could "e ool>"ltted to the Envlro ..... ntal Proteetlon Agency in the f1rat quart.r of Py 1986. A deterllin.tion .S. to vh.1ch pi an- w111 be recoIDIMnded 1. currently under review.

The nrovision. of Sectinn 404 of the I:lean Water Act have !>een met ")' a Section 404 (b) (1) Enluation Report aigned hy the Olatrict Enilineer on 22 Augult 1?75 for the aajority of the project. The provilionl of Section 4D4 of the Clean Water Act for work after 1 October 19R1 have "un met for the Chai""'tte Unit hy a SupplelOental Section • 4D4(b)(1) Evaluation Raport, aigned by the Dlotrict Engineer on 15 Nov"lOb"r 1982. The proviaions of Section 4D4 of C1I the Clean Water Act ~or tl>e hill" level "lan could he Mt "" two Seaion 404(b)(l) EvaluaUons for the !lev Orleans 00 F.alt and !lev nrlean. Weot/Mandeville Unite in the second quarter of FY 1983, Public NoUc .. blued In the second QlIarter of f'l 1""3, (".ertiftcatinn frOll the State of Louisiana in the third quarter of FY 1911' and the Diatriet EnRin .. r' a Ilgnature on the Section 404 Evaluation Raporte in the aecond quarter of FY 1983.

The !>rovisionl of Section 404 of the I:lean tlater Act for the harrier nlan could be met hy a Seetion 4n4(b)(l) Evaluation Raport in the Uut quarter of FY 1986, Public Notice I .. ued in the firet quarter of " 1986, Certification froll the state of Louistana tn the second quarter of " 19,.6, and the Distriet !n'llneer' I si~nature on the Section 4D4 !valuation Raport in the .econd quarter of FY 19116.

OTHF. ... INF'1RMATION: Fund. to initiate preconltruction nlannlng were apprMriated in "Y 1966 and for conltruetion in Py lq61.

Save our tletland., Inc., flled .utt on ~ Decem"er lIJ7S In United State. District r.ourt for the B •• tern Ot.trict of Louisiana al!a1nlt the !lew Orleanl Diatrict Engineer, the Secretary of the Aray, t~ Adwtiniltrator of the EnviroDMntal Prntection Alleney and t"" Prealdent of the nrleans Levee Board. The 1:110 Sport .. an'l Leque joined the auit on 21 June 1976. The St. T_ny Parhh Police Jury joined the suit on 3D March 1977. The au" allegeo the

Lake Pontchartraln, Louisiana, and Vicinity (Hurricane Protection)

31 JAN 1983 133

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" I •

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• • • •

-

c.. '-

follovt~: (1) t .... t. regional c .... ulatin Enviro ... ntal I.pact State.nt ahould be .cc_pU.hed prior to prDceedina vith the prDjeH; (2) tlult the Corp. h .. not c_pUed vith the cDDditiDn. Df final approval by the !nYlro ... ntal !'TDt.ctlon Apne" of Sectlon 404 r"quire_nte of the Federal lI.ter Pollution Control Act; (3) tlult the Corp. ha. not co.pletely eU.inued the St. Charle. Pariah l.bfront levee .. required by the !n.,irD ... ntal ProtectlDn AlIe"cy. n.e .uit .lao ... ek. to haye the Nov Orlean. E .. t labfront levae r .... vad .nd to lui.,. three Dpani",1 for tidal interch.np PTovided under the Southern Railro.d e.b.n .... nt.

The t:oVerMent IIOved to di_i .. the lav.ui t " .... d on .n unexcuaable dalay in fonr.rdi,. • clat. .nd the contention tlult the allelation. of the planUffl vere not Uable to trial in • court of jUIUce uDder the lfatiDnal En.,iro_ntal roUcy Act. A he.ri,,!! v .. held on 5 Noye.ber 1976 and the court denied the !lOtion Dn 7 Dece.ber 1976. In addition • • he.ri,. v .. held on IS Dec.,.her 1976 Dn the Orle.n. lAve. Diatrlet' I (. codafeDd.nt) _Uon to di_bl leluea re"ardlnlt a •• urancel for the OI'oject. The eourt denied the 1IOtlon.

On 30 Dece.ber 1977. Jud8e Chad ... Schvartz of the Feder.l Dhtrict Court in Now Orle.nl i .. ued .n order enjoinlnl any further con.truction of the Chef Ittnteur and Rigoleu Co.lIlexes. Ntv Orle.n. I.at Are. (!a.t of Paria Ro.d) and the Ch.l_tte Are. of the project until. revi .. d !nyiromant.l I.poct StateMnt lui. been prepared.

On 8. l~. ~nd 27 Harch 197~. Jud~ Schvartz lifted the injunctinn on the Now Orle.n. Ea.t Are. (E.lt of P.ril Ro.d) aDd on 10 Harch 1978 he lifted the injunction on the CluIl.ute Area Plan. .. A IIrouo of individuals in St. r.harl.1 pariah filed .uit on 12 Aor11 1977 .. URI tlult tho court direct tho Corpi to fa CDnltruct the St. Charle. Pariah portion Df the prDject which hal been deferred. At a 17 Hay 1978 hearlnl. Judie Chartea Schw.rtz declared that the ouit .0 prelUture .nd deferred further conaideraUon until cOllpletlon Df the re.iled Environmental I.pact St.te .. nt.

A poillic MeUnll va. held in Nov Orle.na on 21 Hovellbar 19~1 to ... ek poillic c __ nt on the tentatively eelected hilh level plan. The hillh level plan ,",uld be conatruct .. d in lieu of the .uthorized b.rrier plan of prot .. cUon. The hillh te.,..l plan ,",uld eUdnate the prooo.ed b.rrle. c_plena .t Rlgoleta P .... eM f Honteur P.II aDd Seabrook. aDd .... uld oubatitute. tn their place. hilher protectiDn levee •• 10Rl! the aouth lhor. of Lake Pofttch.rtrain. The public ruponae ..... heav11y in f.vor of the "illh level plan.

Now e.U •• tel of project COlt and beneflta are beinl! prep.red for the ba.d .. r and the,h1.~h level alternatlv., In connection vith the DlII!oiRl reevalu.tion ,tudie. punu.nt to the court-ordered r.viaion Df the project US. The I .. eati •• tea are now under review and have b .. en neither finalized nor apprDved. helaln.r,. data indic.te that the r .... ining coat to co.plete the hlgh level plan ..,uld be .ppro"batd,. IS parcent 1 .... than the r .... iniRl COlt to Co.plete the b.rrier plan. n.e current "ud~t eati.ate nclud ... the COlt of cont_plat .. d requir_nta for project protection of three drainap outfall can.la in Mev Orle.n. b .. cau ... a final pl.n lui_ -not been .dopt .. d •

Lab Pontchartraln. Lou1l'.na •• nd Vicinity (Rurric.ne Protection)

31 JAN 1983 134

!-_.- ---=----=:...-;;:.'-----" ."

'rhe preliminary est'lmates of project benefi ts are sobst.ntlaHy less than those ci t ed in the justHle.t1on paragraph above . The reevaluation of bene:fit:9 1s based on changes to the e valuat io n criteria since the projec t was aut h:) t:' "l.?-e d . The cu r n~"nt c ri. t:e l"il) dic ta te S tha t intens i fi cation and area l'edcvelopntent canrtot be claimed as a nroje ct benefit . In .any e.vent, t he ne:w pt"el i mina r y est i mate.s indica te t hat both t~ bat:'ri@c plan and high level platt f,.,;1Ould he economically 1us t i fled at the pr oject inte re st rate of 3- t/8 perce nt and at the. current interest rate of 7-7/8 pe rcent.

Lake PontchartraiD, Louisiana, aad Vicinity (Hurricane Protect1Dn)

31 JAN 1!IB3 135

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I

I HISTORICAL CHANGES IN BASELINE FEDERAL COST ESTIllAT!:

Dhbloo: Dbtrlct:

Lowr IIhalulppl Valla,. IIev Orleana

.!!!!. 'ederal Co.t (PrlcI Lnd)

Reason for Chan~e 8 . Price EscalatloD b. Oe sign Ch.n~e s

OriSinoI Ia ... line ---rrr

65,784 (Det 1965)

c. Additional Function Added Under General Autoorh:.\ltion

d. Authorized Modification e. Polt-Contract Avard and Other

!atl .. tin~ Adluot .. nta Schedule Chang.a

g. Sundry h. ,Ileal btate

Project: I LallI Pontchartulo, Loublena lod Vldnity I (RurricI" Protlctloo)

!atl .. t •• Pr .... nt.d to Colllr ... ($1,000) C .. wath.

~

(634,216) zl 520,508 -

63,663

I 0 1 34 ,094

11,'11\2 0

l,q~9

0

Laet m

700,000 1/

Incrl.ntal Chaqe (l}

(-23Z,OOO) 11 -Zl1,7oo -

3,942

10

10

Current (5) 468,000 1/ 1/

-24,242 11 4' 1\ - -

0 .,

1/

,1-' 31 ,-

Includel a decrea ... of S211,700 for ad IUlt_ntl in the utl.ated inflation allowance throullh the construction period. Includes an alio""nce for eotb.ated Inflation throu~h the conltructlon period. Include. d.cre •• ea of $5,566 baaed on more detailed projact coat a.ti .. tes and $20,100 due of reana1,.si. of federal eost aharlnllt requlretllentl. t

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Lau Pontct,.rc r atn, u,ut Itan. 1 and Vlclnlty (Hurricane Protf'ctton)

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11 JAN 1983

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