ML19290E990

Forwards Economic Comparison of 230 Kv Lines 352 & 354: Port Hudson Battlefield Crossing Alternatives. Map & Info Re Alternative Routes & Residential Growth in Vicinity Encl

ML19290E990
Person / Time
Site:	River Bend
Issue date:	03/07/1980
From:	Weigand J GULF STATES UTILITIES CO.
To:	Regan W Office of Nuclear Reactor Regulation
References
RBG-7321, NUDOCS 8003170422
Download: ML19290E990 (11)

Text

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. GULF STATES UTILITIES COMPANY

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March 7, 1980 R3G - 7321 File lio. G9.5 Mr. '4.H. Regan, Chief

,U.S. Nuclear Regulatory Co==ission Environ = ental Project 3 ranch Division of Site Safety and Environ = ental Analysis

'4ashington, D.C. 20555

Dear Mr. Regan:

River Bend Station - Unit 1 Docket No. 50 kS8 At the request of your staff, GSU is providing the following additional infor=ation on the planned transmission route traversing the Port Hudson Battlefield area:

1) revised Table 1

2) Attach =ent I

3) revised Attach =ent II h) revised Exhibit A

5) land use map with revisions (provided directly to your reviewer

6) infor=ation on residential growth in the vicinity.

This info:=ation supple =ents that trans=itted under a letter to you dated Nove=ber 30, 1979 Please contact us if we can be of any further assistance.

Sincerely, J.G. 'deigand M

Operations and Technical Systems JG'4/v"4C/=b I

Attachments [

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TO Lcu Sykoski March 7, 1960 .

Frc= James Cock, Environnental Analyst Gulf States Utilities Co.

Subject AREA IAST OF PCRT HUDSON 3ATTLEFIELD I have included certain infer =ation which we hope vill be of help in establishing that this area is a "greving residential area".

In checking the =icrofil files of the East Esten Rouge Public

'4crks repart=ent , Building Fer=it and Inspection Livision, ve were able to establf r.h these statistics for new single fa=ily dwellings lo-cated in this area for each of the last five years.

1975 1976 1977 1978 1979 3h ho 52 63 29 The towns of Zachary, LA and 3aker, LA are situated in such proximity to this area that they are expected to continue exerting residential expansion into this region. Selow are population figures which were available for certain years in the incorporated areas of these towns.

They were offered by the Zachary Cha=ber of Cc==erce and the Baker Mayor's Office respectively.

ZACHARY, LOUISIANA 1970 1979 h,88k 7,120 SAKER, LOUISIANA 1970 1973 1976 1980 6,281 9,757 11,3ko 12,500 (Estimate) 9

. 1 Attach. II Fevised 2-25-80 ROUTES CONSIDERED TO AVCID 2 E FORT HUDSON BATTLEFI M NATIONAL HISTCRIC LANOMA?l:

Purucse Subsequent to the preparation and for=al presentation to the Nuclear Regulatory Cc==ission of Gulf States Utilities Cc=pany's Environ =enal Report-Construction Per=it Stage covering the River Bend Site and associated rights-of-way, there was an area included in the National Register of Historic Places designated as the Port Hudsca 3attlefield which enco= passes a portien of the proposed 230 kV line routes to Port Hudsen and Jaguar (Line Route "C"). GSU was aware of the potential for historical significance of the Battlefield area during the time of our original route selection and had, in fact, vorked with the State of Louisiana prior to this time in the routing of the original right-of-way in the late 1960's.

Relocations and adjust =ents were =ade at that time to avoid any conflicts ed to provide for a ec=patible relationship of our right-of-way with the proposed State facilities.

In the original Enviren= ental Report in Section 10.9.2.1 there is a reference to the effect that alternatives to the 230 kV transmission lines to Port Hudsen and Jaguar substations and connecticns to the existing 230 kV lines "have not been extensively investigated since the ec=bination of existing and new corridors through rural, suburban and urban areas is well established and any deviation vould increase the environ = ental i= pacts."

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Alternates were certairly investigated at the ti=e, but not formally addressed because the adverse environ = ental i=pcets (land clearing require =ents, water and road crossings, residential proxi=ity, etc. ) were apparent. However, because of the i= pact of the Battlefield designatien,

s ve feel it i= perative to now for= ally address the alternates (See Exhibit A for map) irregardless of the above and notwithstandicg the ecenc=ic consequences of these =enies already ec==itted in the purchase of h25 of the pr'oposed right-of-way, engineering studies and design verk cc=pleted, and of equipment already placed en order.

Pronosed Reute A physical description and an enviren= ental descriptica of Proposed Route "C" can be found in Section 3.9 of the Enviren= ental Report.

A longitudinal description of this proposed transmission line corridor as it traverses the Port Hudson Battlefield area parallel and adjacent to an exist-ing transmission line corridor describing those various land categcries is as follows:

Beginning at the intersection of the transmission line corridor

. with the most northerly line of the Port Hudsen Battlefield area; Thence in a southeasterly direction 200 feet crossing Bottc= land Forest to a point in the northerly bank of Thc=pson Creek; Thence continuing southeast h00 feet crossing Thompscn Creek to a point in the south line of said creek; thence 3100 feet crossing Botte= land Forest; thence 1505 feet crcssing pasture land; thence 1960 feet crossing Upland Forest; Thence 3330 feet crossing Upland Forest, with a 1770 foot pcrtion t the existing transmission corridor adjoining a State Park, to in angle point in the proposed and existing line corridor; Thence easterly 325 feet crossing Upland Forest; Thence continuing easterly 2700 feet crossing residential areas; thence 2290 feet crossing pasture land; thence 150 feet crossing -

residential land, with a 2870 foot portien of the existing trans-

=ission line corridor, as covered in the preceding four course, e.djacent to the sa=e State Park, to an angle point; Thence southerly 1230 feet crossing residential and/or ec==ercial properties; Thence centinuing southerly 1785 feet crossing ec==ercial lands; thence 1020 feet crossing residential properties; thence 25ho feet crossing pasture land; thence 950 feet across industrial lands and to a termination point in the southerly line of Port Hudsen Battle-field.

For tabulation purposes a total footage across each of the various

' land areas traversed is as follcvs:

Sotte= land Forest 3300 feet Upland Forest 5615 feet Rivers LOO feet Pasture 6335 feet Residential 3870 feet Residential and Cc==ercial 1230 feet Cc==ercial 1785 feet Industrial 950 feet TOTAL 23.h85 feet Of this total h6h0 feet of the existing right-of-way corridor actually adjoins the State Park. The proposed trans=ission line route vill be parallel to but separated fran the State Park by the existing lines corridor.

Alternate Route No. 1 Eescription An alternate to avoid the battlefield area is described as below:

3eginning at a point on the original proposed route designat'ed as Point A on the attached Exhibit "A",1.9 =iles south and scuthwest of the River 7end switch yard at the intersectica with existing Gulf State

• rover lines and pipelines right-of-way:

THENCE Northeasterly,1 =ile, more or less , with sa=e existing ~

right-of-way to an angle point; THENCE Easterly, k =iles, = ore or less, crossing Thc=pson Creek and paralleling an existing Illinois-Central Railroad right-of-way, a portion of the way to an angle point; THINCE Southerly, 219 =iles , = ore or less , to an angle point ;

THENCE Southwesterly, 2.7 =iles, =cre or less, to an intersection with the original proposed right-of-way; THENCE Easterly, .08 =iles along the original proposed right-of-way to Port Hudson Substation for a total length of 10.7 miles, and as is = ore particularly shown on the attached Exhibit "A".

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On these sections of Alternate No. 1, parallel and lijacent to the original preposed right-of-way, an additienal 96 feet cf right-of-way would be required. All the remaining portion of Alternate Nc.1 vculd require a new right-of-way 113 feet in viith.

Enviren= ental Costs The =ajor portion of Alternate No.1 lying east of louisiana State Highway No. 61 is presently in a residential trend area developing because of the Zachary-Baten Rouge influence. A new right-of-way across such an area vould surely present severe proble=s. This sa=e residential trend would indicate higher land values because of the s= aller areas being sold resultin8 in greater difficulty in obtaining rights-of-way. Twenty-eight percent of the alternate route vould be parallel or utilize the =ultiple right-of-way lana use principal, whereas, one hundred percent of the proposed route is a multiple use. The additicnal overall length of the Alternate No.1 (1.0 miles) as cc= pared to that of the proposed route would of course necessitate that amount of additional land being encu=bered. A lesser amount of timber would have to be re=oved frc= the alternate route as cespared to the proposed route, however, this is primarily because of the residential trend of the alternate surrounding land and the previous re=cval of the trees to allow and provide for this develop =ent.

"te alternate route vould require the cressing of one =ajor waterway which is the sa=e as the proposed route and veuld have seven road crossings as cc= pared to five en the preposed route. The additional road crossings for the alternate are again because cf the residential trend in the area and the access therefore required.

This alternalt could be ccustructed and =aintained in a manner similar to that of the proposed route and no new access reads vculd be required.

Alternate Route No. 2 Description This alternate route is described as follevs:

3eginning at a point en the original proposed route designate:1 as Point A on the attached Exhibit "A":

THCICE Southwesterly, 2.9 =11es , more or less , parallel and adjacent to an existing transmission and pipeline right-of-way to an angle point; TERICE Southerly, 2 =iles, more or less, with same existing transmission line right-of-way to an angle point; T'dENCE 'desterly, .1 =ile, more or less , with sa=e existing transmission line right-of-way to an angle point;

'IEENCE Southerly, 2.2 miles, : ore or less, with same existing trans=ission line right-of-way to an angle point ;

THENCE Southeasterly,1.h =iles, more or less, with same existing electric trans=ission line right-of-way and a railroad right-of-way to an angle point; THENCE Northeasterly, k.1 miles, more or less, crossing the Mississippi River to an angle point on the eastern or left decending bank; TEDICE Easterly, 2.7 miles, = ore or less, to the Port Hudson Substation Station for a total length of 15.h =iles, and as more particularly shcvn on attached Exhibit "A".

Those portions of Alternate No. 2 parallel and adjacent to that existing electric transtission line right-of-way would require an additional 68 feet of new right-of-ve . The re=aining portions cf Alternate No. 2 vould require the purchase of a new right-of-way 113 feet in vidth.

Environmental Costs The land use along this alternate vould approx 1=ately be the sa=e as the proposed since it is predc=inantly cultivated or pasture areas and ti=ber land. However, because of the rural residential development along the seven roadways crossed the i= pact en property values could possibly be greater as explained in Alternate No. 2. Sixty-four percent of the seccnd

alternate vould take advantage of a multiple use of right-of-way. This alternate route vould require 5.7 miles more length as conpared to the proposed route pri=arily due to crossings required of the SEssissippi River. Approxi=ately the sc=e a=cuut of ti=ber would be required to be re=cved en this alternate as cenpared to the proposed route.

Four =ajer watervay crossings vould be required en this alternate route as cc= pared to cne on the proposed route. Two of these vould be Mississippi River crossings. The northernmost of the Mississippi River crossings would be parallel and adjacent to an existing transmissien line right-of-way crossing with towers of ec= parable height. In the event of a structure failure or so=e major catastrophe affecting either crossing tower the result could be the loss of both. Either of these consequences could have serious i= pact upon the service reliability to the GSU trans=ission syste=

in the Baten Rouge area.

This alternate vould be constructed and =aintained in a =anner similar to that of the proposed and no new access roads would be required.

Conclusion In'our opinien, after evaluating the alternates routes presented herein (See Exhibit 3), the sa=e conditions still exist as when the route was originally prepcsed, and when considering the =itigating =easures to be ,

taken by Gulf States (See Exhibit C) along the proposed route its desirability is further enhanced when weighing all enviren= ental considerations.

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COST DESCRIPTION - ALTENNATIVES A B C D E F ALTLEN.\TIVES PROPOSED ALT. 1 ALT. 2 ALT. 3 A LT. 4 A I.T . 5 lacremental canstruction Costs Basa $2.146,113 $19,125,271 $44,107.784 $438,545 $5,794.313 os os.wironrantal Report k-.crence Section 'O.9.1 N. A. N. A. N. A. N. A. N. A.

Envitannental Costs Unita HACNITUDE MACNITUDE HACNITUDE HAGNITUDE IMCNITUDE HAGNITUDE

1. Land Use (1:ank alternatives in terms of

.rao u n t ui conf lic t with present anJ Same as Same as Same as Sawe as planned land use) Base Proposed Proposed Proposed Creater Proposed

2. Property values (Kank alternativen in terms of Same as Same as Same as averags property valua along route) Base Proposed Proposed Proposed Creater Cucater

3. .%a .itiple Use (Rank alternative rou;es in terms of All of pro-tuvisiuncJ mesitiple use of land posed route pre-capted by rights of way) multiple right Same as Same as Same as of way use-9.66 Proposed Proposed Proposed 2.9 miles 9.8 miles miles 28% 64%

47~~iength of new 230KV line required H11es 9.66 miles 9.66 miles 9.66 miles 9.66 miles 10.66 miles 15.53 miles

5. Number ardt total lengt'a of new accesa and acrvice roads required NONE 2-lh miles 2-lh miles 2-lh miles NONE NONE

6. Numlier of road crossings 5 5 5 5 7 7

7. Nua.ber'af major wate ways crossings 1 1 1 1 1 4

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ECONOMIC COMPARISON OF 230 kV LINES 352 AND 354 PORT HUDSON BATTLEFIELD CROSSING ALTERNATIVES A Study For GULF STATES UTILITIES COMPANY DUPLICATE DOCUMENT n d o s d nuo 79/O05b5%-

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