ML20030C309

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Ultimate Heat Sink Sedimentation Monitoring Program, Rept 2.Dept of Army Ltr & Miscellaneous Notes & Calculations Encl
ML20030C309
Person / Time
Site: Clinton  
Issue date: 10/31/1980
From:
HOMER L. CHASTAIN & ASSOCIATES
To:
Shared Package
ML20030C308 List:
References
NUDOCS 8108250646
Download: ML20030C309 (28)
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Text

- - _ - _ _

REPORT NO. 2 ULTIMATE HEAT SINK SEDIMENTATION MONITORING PROGRAM Illinois Power Co.

Clinton Power Station Clinton, Illinois Prepared by Homer L. Chastain & Associates Decatur, Illinois October 1980 0108250646 810821' PDR ADOCK 05000461

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Ultimate Heat Sink Sedimentation Monitoring Program Abstract:

Illinois Power Company has established a program to monitor the amount of sediment build-up on the bottom of the Ultimate Heat Sink (UHS) at the Clinton Power Station.

This program calls for annual surveys to measure the sediment build-up.

The first such survey was made during November 1979.

A detailed outline of the procedures used in conducting this program has been outlined in report Number 1.

The second annual survey was made during October 1980.

Copies of the field notes and calculations for the October 1980 survey are included in the following pages of this report.

Summary of Findings:

Report No. 1 concluded that no significant measurable amount of silt build-up had occurred in the Ultimate Heat Sink from the date of impoundment to November 1979.

The data from the October 1980 survey show that an average of approximately 0.2 feet of silt build-up has occurred between November 1979 and October 1980.

The average bottom elevation for the 30 survey locations being monitored was 667.7 feet for both the initial and November 1979 surveys.

The average bottom elevation for the October 1980 survey was 667.9 feet.

Based on a top of pool elevation of 675.0 feet for the UHS, this

I 0.2 foot difference constitutes a silt volume equal to 2.7% of the total initial volume of the UHS.

675.0' - 667.7' = 7.3' Ave. Depth 0.2' + 7.3' = 2.7%

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DEPARTMENT OF THE ARMY j

ROCK ISLAND DISTRICT, CORPS OF ENGINEERS l

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NCROD-S-070-0X6-1-08220Z 1

Mr. Jene L. Robinson Illinois Power Company 500 South 27th Street Decatur, Illinois 62525

Dear Mr. Robinson:

Inclosed is a Department of the Army permit authorizing work in conjunction with the placement of a revetment mat along the Nore.h Fork of Salt Creek near Clinton, Illinois.

Also inclosed is a "Untice of Authorization" which must be posted at the project sice.

If any material change in the plans or the work authorized herein is foend to C.-

be necessary,_ revised plans most be submitted to this ef fice for the Distitet Engineer's approval before work thereon is begun.

A representative of this office will make periodic inspections of the work.

The cooperatior, you have shown during the processing of your permit is appreciated.

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Should you have any questions pertaining to your permit or if we can be of assistance in any of your future projects, please contact our Pegulatory j

Functions Branch by lecter, or telephone Mr. Cecil Deitrich, 309/788-6361, I

extension 213.

Sincerely, jw,

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l 2 Inc1 HENRY C.

FIESTER, P.E.

1. Permit No. 08220Z Chief, Operations Division l
2. Notice of Authorization

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US Army Corps of Engineers gg E

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Peoria Project Office p-Foot of Crant Street 2

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19 NOV 1980 Mr. Jene L. Robinson

, j Copies Furnished: (Continued)

Mr. Jay C. Henry Sopervisor, Biological Programs i

500 South 27th Street Decatur, Illinois 62525 (w/inel 1)

Mr. David R. Boyce, P.E.

Chief Floodplain Ihnagement Et gineer Division of Water Resources Illinois Department of Transportation

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L 94'3 DEPARTMENT OF THE ARMY CORPS OF ENGINEERS r

NOIlCE Of AUTHORIZATION 19 November 1980 A PERMIT TO perform work in conjunction with the,1acement of a revetment mat along the shoreline of the North ><ck of Salt Creek (Clinton Lake) near Clinton, Illinois.

AT Section 22, Township 20 North, Range 3 East in DeWitt Ccunty

, IL.

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HAS BEEN ISSUED TO ILLINOIS PO'n'ER COMPMW ON 19 Nov.

1980 ADDRESS OF PERMITTEE 500 South 27th Street, Decatur, Illinois l

62525 PERMIT NUMBER NCROD-S-070-0X6-1-082202 PERMIT EXPIRES: 31 December 1983 for ti.

!"ct Enfam Ed'"" '"'

4 THIS NOTICE MUST BE CONSPlCUDUSLY DISPL m

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  • We's mW

Ap' lication No.

p Name of Applicant i1Iinois Power Company 19 N vember 1980 Effective Date Expiration Date (tf applicablel 31 December 1983 DEPARTMENT OF THE ARMY PERMIT Referring to written request dated for a perrnit to;

)(X) Perform work in or affecting navigable waters of the United States.upon the recommendation of the Chief of Engineers, pursuant to Section 10 of the Rivers and Harbors Act of March 3,1899 (33 U.S.C. 403);

hl Descharge dredged of fell rnaterial into waters of the United States upon the issuance of a permit from the Secretary of the Army a4fing through the Chief of Eng.neers pursuant to Section 404 of the Federal Water Po!!ution Cor-58 ut (86 Stal.816, P.L.92-500);

I ) Transport dredged material for the pur. ose of dumping it into ocean waters upon the issuance of a permit from the Secretary of the Army acting through the Chief of Engineers pursuant to Section 103 of the Marine Protection, Research and Sanctuaries Act of 1972 (86 Stat.1052, P.L. 92 532);

II1inois Power Company 500 South 27th Street Decatur, lilinois 62525 h hereby authorised by the 5estetary of the Arr9y:

perform work in conjunction with the placement of a revetment mat.

An 800-to foot-long by 36-foot wide section of shoreline will be shaped to a 3: 1 slope and covered with a nylon fabriform mat filled with sand-cement mortar 4 inches thick. The area, from elevation 686 to 695 above m.s.l., will require approxi-mately 330 cubic yarc's of fill material, slightly over half of which will be

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below the ordinary high water mark, along the shoreline of the North Fork of Sult Creek (Clinton Lake) in Section 22, Township 20 North, Range 3 East, near Clinton, DeWit't County, Ill.

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s in accurdante with the plans anJ Jrawings attatheJ hereto which are incorporated in and made a part of this permit (on drawings: give I

fate number ur other definite iJentifiution markt) l tiaps No. 08220Z:

Proposed revetment mat south of screenhouse at Clinton Power Station, Sheets 1 through 3 subjett to the following sondations

1. General Conditions-
a. That ait activities ident.f ed and authorized herein shall be consistent witF the terms and conditions of this permet; and that any activities not specifically iden Pd and authoriled herein shall Coristitute a woolation of the terms and conditions of this permit which may result in the modifsCa Jr'. sJ5 pension of revocation of this permit, in whole or in part, as set forth more specifically in General Conditions or k hereto, e id in the institution of such regal proceedings as the United States Government may consider appropriate, whether or not this permit has been previously modified, suspended of revoked in whote or en part i

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1721 EDITION OF 1 APR 7a IS OBSOLETE lER 1945 2 303)

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b. That att activities authocered herein shall, if they envolve, during their construction or operation, any d.scharge of pollutants into l

waters of the United States or ocean waters, be at all times consistent with appbcable water quataty standards effluent limitations and standards of performance, prohibitions, pretreatment standards and rr anagement practices estableshed pursuant to the Federal Water -

Potiution Conteof Act of 1972 (P.L. 92 500. 86 Stat. 816), the Marme Protection, Research and Sanctuaries Act of 1972 (P.L.92-532, 86 Stat.1052), or pursuant to applicable State and locallaw.

c. That when the activity authorized herein involves a discharge during its construction or operation, of any pollutant (including dred fd or fill materiali. mto waters of the Uneted States, the suthorered activity shall. if applicable water quahty standards are revised ce mod 8 ed daring the term os this permit. be mcdified. if necessa*y to conform with such revised or modified water quatity standards e

within 6 months of the ef fective date of any revision or modification of water quahty sta9dards, or as directed by an implementat on pian contamed in such revised of modified standards, or withm such longer period of time as the District Engineer. in consultation with the Regional Administrator of the Environmental Protection Agency, may determine to be reasonable under the circumstances.

d. That the discharge weit not Astroy a threatened or endang-red species as identified under the Endangered Species Act, or 6ndanger the critical habitat of such ss,u es.
e. That the permittee agrees to make every reasonable ef fort to prosecute the construction or operation of the work authoritJ herem m a manner so as to mmemite ans adverse empact on fssh, wildlife, and naturst environmentaf values.

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f. That he permittee agrees that he will prosecute the construction or work s sthorized herein in a manner so a :o minimize any degradation of water cuarity.
g. That the permittee shall permit the District Eng neer or his authorized representative (s) or designeets) to make periodic inspections at any time deemed necessary m order to assure that the activity being performed under authority of this permit is in accordance with the terrns and conditions prescribed herem.
h. That the permittee shalt maintam the structure or work authorized herein in good condition and in accordance with the plans and drawings attac%d hereto.
6. That this permit does not convey any property rights, either in real estate of material,or any enclusive privileges;and that it does not a;thorire any mjury to p operty or mvasion of rights or any mfringement of Federal, State or local laws or regulations nor does it cbviate the requirement to obtain State or tocal assent certuired by law for the activity authorized herein.
j. That this perrvet may be summarily suspended, m who'e or m part, upon a finding by the District Engineer that immediate sunension of the activity authorsted hereen wculd be in the general pubbe interest. Such suspension shall be effective upon receipt by the permittee c.f a written notice thereof which shall endicate (1) the extent of the suspension. (2) the reasons for this action, and C

imminent hazards to the generat pub'ic meerest. The permittee shaf t take immediate action to ca.mpty with the provisions of this notice.

(31 any corre:tive or preventative measures to be taken by the permittee which are deemed necessary by the District Engineer to abate Within ten days following receipt of this not.Ce of suspension, the permittee rnay request a hearmg in order to present information relevant to a decision as to whether his permit should be reinstated, modified or revoked. If a hearmg is requested.it shall be conducted pursuant to procedures rarescribed by the Chief of Engmeers. Af ter completion of the hearmg. or within a reasonable tirne af ter issuance i

of the suspension notice to the permittee of t'o hearmg is requested, the permit will either be remstated, modified or revoked,

k. That this permit may be either moddied, suspended or revoked m whole or in part if the Secretary of the Army or his authorized representative determmes that there has been a violation of any of the terms or to.ditions of this permit or that such action would etherwise be in the public interest. Any such mod hcation, suspension, or revocation shall become eifective 30 days af ter receipt by the permittee of written notice of sach action which shall specify the f acts or conduct warranting same unless (1) within the 304ay period the permittee is able to satrsfactordy dernonstrate that (a) the alleged violation of the terms and the conditions of this permit did not, m f act, occur or ibl the a:leged violatioe was accidental, and the perm:ttee has been operatmg in cornpfiance with the terms and conditrons l

of the permit and is abie to provide satisfactory assurances that future operations shall be m full comphance with the terms and conditicns of this permit, or (2) withm the aforesaid 30 day period, the permettee requests that a public hearing be held to present oral and written evidence concernmg the proposed modification, suspension or revocation. The conduct of this hearing and the procedures for makmg a fmai decision either to modif y, suspend or revoke this permit in whole or m part shall be pursuant to procedu es prescribed r

by the Chief of Engmeers f

f. That m issuing this permit, the Government has relied on the information and data which the permittee has provided in conneCleon I

with his permit application. If. Subsequent to the issuance of this permit, such information and data prove to be false, incomplete or i

maccurate, this permit rrav be modified, suspended or revoked, in whole or m part, and/or the Government may,in addition. institute appropriate legal proceedings.

m. That any modification, suspension, or revocation of this permit shall not be the basis for any claim for damages against the l

United States I

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n. That the permittee shall notefy the District Engmeer at what time the activity authorized herein will be commenced, as %r in advance of the time of commencement at the District Engmeer may specify,and of any suspension of work,il for a period of raore than one mek, resumption of work and its completion.

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Rowell PROPOSED REVETMENT M AT SOUTH OF SCREENHOUSE AT CLINTON vicinity Map POWER STATION Clinton Lake, Illinois C LIN TO N, IL L INOlS DEWITT COUNTY APPLICATION BY ILLINOIS POWER CO MPAN Y SHEET I of 3 D ATE : 8 /18 / 80

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TOE OF SLOPE S68'-0" CLINTON LAKE s'

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ALL REVETMENT WORK.

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3. DATUM IS N.G.V.D. of 1929 m

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  • 7dO-3 HEAT SINK SLOPE O.H.W. E L. 6 9 2'- O" O. L.W. E L. 6 8 9 '- O" g

EROSION NORMAL POOL EL. 690'-O" 695 -

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HEAT SINK SLOPE 685-BELOW NORM AL POOL I

5 680 -

TYPICAL EXISTING CONDITION SECTION l

0 10 20 u d,_

k u m m w SC A LE : I"= 10'- O" b

3 O.L.W. EL.689'-O"l 700 -

y l1 3a ' go,3 nongat poot et. sgo'_o a O.H.W. E L 69 2'- 0" f

US 2'yRg

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ygq 690 -

2'-O" ANC HOR TRENCH BACKFILLED AFTER INS TA L L ATION 685 -

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TYPICAL PROPOSED REVETMENT MAT SECTION 0

10 20 fem]

lLmne uw i

SCALE: 1 "= 10 *- O "

i PROPOSED REVETMENT MAT SOUTH OF SCREENHOUSE AT CLIN TON POWER STATION

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CLINTON, IL LINOIS DEWITT COUNTY.

APPLICATION BY ILLINOIS POWER COMPANY SHEET 3 of 3 DATE.' 8 /18 /80

1111NOIS Ehvironmental Pfatection Agency

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% D.Eih 3 Wewse 1 2200 Churchill Road, Springfield, Illinois 62706 iSZila d i

217/782-2909 Illinois Power Company (DeWitt County)

Shoreline Revetment - Clinton Lake Log #C-488-80 2#

October 3,1980 g93 Department of the Army Rock Island District Corps of Engineers Clock Tower Building Rock Island, Illinois 61201 Gentlemen:

This Agency received the attached on September 29, 1980, from the Illinois Power Company requesting the necessary cornnents on environmental considerations for the construction of an 800 foot long shoreline revetment, involving the regrading of a Clinton Lake bank segment to a 3:1 slope, and the installation of a f abri-ferm mat using approximately 330 cubic yards of sand and cement. We offer the following comments.

Based on the information included in this submittal, it is our C

engineering judgment that the proposed project may be completed without causing water pollution as defined in the Illinois Environmental Protection Act, provided the project is carefully planned and supervised.

These comments are directed at the effect on water quality of the ccnstruction procedures involved in the above described project and is not an approval of any discharge resulting from the completed f acility, nor an approval of the design of the f acility. These cornnents do not~

supplant any permit responsibilities of the applicant towards this Agency.

This Agency hereby waives certification under Section 401 of the Clean Water Act (PL 95-217), subject to the applicant's compliance with the,

following conditions:

1.

The applicant shall not cause:

violation of applicable water quality standards of the Illinois a.

Pollution Control Board, Chapter 3, Water Pollution Regulations; b.

water pollution as defined and prohibited by the Illinois Environmental Protection Act; and c.

interference with water use practices near public recreation areas or water supply intakes.

({:l/

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Page E e

k-2.

The applicant shall institute, as appropriate, those construction procedures set forth in EPA #430/9-73-007 entitled, Processes.

Procedures and Methods to Control Pollution Resulting from all Construction Activities, dated October,1973, and any other procedures necessary to prevent water pollution in the stream due to the activity during the project construction period.

3.

Any spoil material excavated, dredged or otherwise produced must not be returned to the river or stream but must be deposited in a self-contained area in compliance with all State statutes, regulations and permit requirements with no discharge to the waters of the State unless a permit has been issued by this Agency.

Any back filling must be done with clean material and placed in a manner to prevent violation of stream water quality standards.

4.

This waiver becomes effective when the Department of the Army, Corps of Engineers, includes the above conditions #1 through 3 as conditions of the requested permit issued pursuant to Section 404 of PL 95-217.

This waiver of certification does not grant irm: unity from any enforcement action found necessary by this Agency to meet its responsibilities in prevention,' abatement, and control of water pollution.

(

Very truly yours, O%

f Thomas G. McSwiggin, P.E.

Manager, Permit Section

~

Division of Water Pollution Con TGM:BY:mgg4346b/3 Attachmen t cc: IEPA, DWPC, Records Unit DWPC, Field Operations Section, Region 4 100T, Division of Water Resources, Springfield USEPA, Region V Illinois Power Company

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a

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e 1st October 83

o. That if the activity authorited herem is not started on or before d3y of 19 fone year from the date of issusace of th s permit unless otherwise specifiedi and is not completed on or before 3ISI dJy of Decembe **

19 d3

_ f three years from the date of issuance of this perm t unless otherwise specified) this permit. if i

not previously revoked or speCifsCally enterided, sheet automatically espere.

1

p. That this permit does not authorize or approve the Construction of partsCuter structures, the authorization or approval of whsCh may require authorization by the Congress or other agenc es of the Federal Government.

4 j

q. That if and when the permettee desires to abandon the activity authorized herein. unless such abandonment is part of a trans'er 1

procedure by which the permittee is transferrmg his interests herein to a third party pursuant to General Condition t hereof, he must i

restore the area to a condition satisfactory to the District Engineer.

r. That if the recording of this permet es possibie under appl cabte State or local law, the permittee shalt take such action as may b.

necessary to recoed this permit with ISe Reg. ster of Deeds or other app *opriate official charged with the responsibility fo* mairita ning a

records of title to and interests an real property.

4

s. That there shalt be no unreasonable interference with navigat.on by the existence or use of the activity authorised herein.
i. That this permit may not be transferred to a th.rd party without prior written notice to the District Engineer, either by the

. transfe++e s we iten agreement to comply with all terms and conditions of this permit or by the transferee subscribing to this permit in the space peuvnfett IFlow and thcetby agreeeng to comply with all terms arg onditions of this l'ermit. In addition. if the permittee transfers the interests authoritect herein by Conveyance of really, the deed s au.Urence that permit and the terms and Conditions specified herein and this permet shall be recorded along with the deed with the Register of Deeds or other appropriate of ficial.

If Specal Conditions: (Here list conditions relating specifically to the proposeil structure or worlt authorized by thes permsth

(

)

Conditions 1 through 3 listed in the attached letter from the Illinois Environ-mental Protection Agency, Log #C-488-80 dated 3 October 1980, are considered to be a part of this permit.

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The following Special Conditions will be applicable whsn appropriata:

STRUCTURES IN OR AFFECTING NAVIG ABLE WATERS OF NE UNITED STATES:

a. That this permit does not authorite the interfeeence with any esisting or proposed Federal project and that the permittee shall not be entitled to compensation for damage or injury to the structures or work authorized hetern which snay be caused by or result from

~

esistmg or future operations undertaken by the United States in the public interest.

b. That no attempt sha'l be made by the permettee to prevent the full and free use by the public of all navigable waters at or adjacent to the activity authorized by this permit.
c. That if the display of fights and signals on any structure or work authorized herein is not otherwise provided for by taiv, such lights and signals as may be prescribed by the United States Coast Guard shall be instatted and maintamed by and at the expense of the permitt ee.
d. That the permittee upon receipt of a notice of revocation of this permit or upon its expiration before completion of the authorized structure or work, shalf, without expense to the UniteJ States and in such time and manner as the Secretary of the Army or his authorized representatsve may direct, restore the waterway to its former conditions. If the permittee fails to comply with the direction of the Secretary of the Army or his authorized representative, the Secretary or his designee may restore the waterway to its former condition, by contract or otherwise, and recover the cost thereof from the permittee.
e. Structures for Emait Boats. That permittee hereby recognizes the possibility that the structure permetted herein may be subject to damage by wave wash
  • rom passm; vessets. The issuance of this permet does not seheve the permittee from talimg all proper steps to insure the integrity of the' structure permitted herem and the safety of boats moored thereto from damage by wave wash and the permittee shall not hold the United States hable for any such damage.

MAINTENANCE DREDGING-

a. That when the work authorized herein includes periodic maintenance dredging. it may be performed under this permit br O

years from the date of issuance of this permit f ten years unless otherwise indicated);

b. That the permittee well advise the District Engmeer in writmg at least two weeks before he intends is undertake any maintenance dredgmg.

VISCHARGES OF DREDGED OR FILt. M ATERI AL INTO WATERS OF THE UNITED ST ATES.

a. That the discharge will be carried out in conformity with the goals and objectives of the EPA Guidehnes established pursuar's to Section 404(b) of the FViPCA and pubbshed in 40 CFFt 230,
b. That the discha ge witt consist of suitabfe materiat free from toxic pollutants in other than trace quantities:

(

c. That the fett created by the discharge will be pecperty maintained to prevent erosion and other non pomt sources of pottution; and
d. That the discharge will nat occur in a component of the National Wi d and Scenic Rever System or in a component of a State wild l

and scenic river system.

DUMP!NG OF DREDGED MATERI AL INTO OCEAN WATERS;

a. That the durnomg witi be carried out in conformity with the goats, ob ectives, and requirements of the EPA criteria estabbshed i

pursuant to Section 102 of the f.*arir e Protection Research and Sanctuaries Act of 1972, putJeshed m 40 CFR 220-228.

b. That the perm.etce shall place a copy of this permit in a conspicuous place in the vesset to be used for the transportation and/or dumping of the dredged material as authorized herein.

This permit shalt become eff ective on the date of the District Engmeer's signature.

Permittee hereby accepts at d agrees to compty with the terms and *onditions of this permit.

I

, gp) f, November 18, 1980 PERMITTEE DATE t

l BY AUTHORITY OF THE SECRETARY OF THE ARMY; ll- / Wh i

r DATE F. W. MUELLER, Jr., Colonel DISTRICT ENGINEER, U.S. ARMY, CORPS OF ENGINE E RS Transferee hereby ag ees to compsy with the terms and conditions of this permit.

i TR ANSF E R E E DATE 4

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$USSaDIAR1r OF 6221 THATCHER HOAO I

INTRUS10N PREPAKT. INC.

DOWNER $ GROVE

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A double layer form of industrial grade

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nylon fabric, much like an immense N'

.g UN Qjy envelope, is shop assembled to fit your

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topography and delivered to you ready to l'

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J.g.KQy.3 g.:-3 be filled with pumpable sand /cernent

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mort ~ar to provide economical and reli-

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able slope protection. As easily installed d-

. M. %j.. h,2 ) under water as in-the dry, Fabriform

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revelments protect the shorelines of

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'd hasins and drainage channels. Wherever M, ). !

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, y constructed by injecting mortar into preassembled

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forms of double layer fabric which has been

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spread out on the slope to be protected. Under water or in-the-dry, material cost is predictable,

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. qq,4 labor cost is low, and no dewatering is needed.

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l For most applications, the two layers of fabric

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are woven together at spaced filter points. When o..cp f

filled with concrete the textured surface has a 7{y.k'..D

.. d cobblestone appearance with filter points

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Where low permeability and low hydraulic

' f' M i cfj friction are required, the two f abric layers are held

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N., #9 Jg In a parallel relationship by a grid of spacer M, l.:.

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k$p hD Jp ties on 1" centers to form a revetment of " uniform bh'~ v.'. /N.W Uniform cross f'

secut nw

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cross section:'

section style f*

nomina l thickness 4

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double layer fabric woven of bulk textured DuPont i

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Cordura* nylon fiber in a warp of tire cord for I8 FA8RIFORM

    • "Mh"}'O' optimum strength, stability, adhesion, and 5

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couthii0Nu through the fabric produces all the desirable "jd h 8, '

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, features of low water / cement ratio mortar,g,..

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vh abrasion resistance. Curves show actual test 5

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with tests on companion specimens cast with 7 -

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a. The discharge canat or identicalmortarin conventionalmolds.

- AGE IN DAYS VEPCO's nuclear power ;

at surry VA as protected t n

Lg 384.250 f t.'of 8" FP Fabr.

UUI8Ule.Fabriform revetments pr' tect the -

o shoreline of Allegheny reservoir above Kinzua kx.y,

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revetment.

dam alongside a highwayin southwestern New

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b. The 1 % :1 banks of the M "P

NoVEMB ER 1968 dam reservoir near Tokyo.

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,'apan are r d,9rm c$

York.The U.S. Army Corps of Engineers in gyg{3)'

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,,,,n cooperation with the N.Y. State DOT installed

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',, instanation as the locally woven f abric.

130,000 it.8 of 8" Filter Point style Fabriform on a mp g,

poonevenecedes Q '#gp ' I

,hof s f) 81s fah

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. 53 f t. embankment sloping 1 % : 1 from 7'above '

and high water to low pool. Much of the revetment discharge canais of a fost was installed at high pool under 20'or more of.

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fueled power plant in Flori y_g3'.g}

s water.Through more than ten tough winters,'with E

ice up to 24" thick, high winds and wat 3, ~* 2 "P ToDAY

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. weather, and rapidly fluctuating po.ollevels, slope Fabriform is stm

-l, ~1 protection remains fully elfective and completely

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maintenance free.

elfectively as the p

day it was M'd i '-

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insta led.

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O com.tn Pa N AL COMPRESSIVE STRENGTH g

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Tha fabric used in Fabriform construction has been designed to serve as a 5g [

filt:r es well as a form. The highly fluid mortar pumped into the fabric forms

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till typically be mixed at a water / cement ratio in the 0.70 to 0.75 range. Excess t"

mixing water is squeezed through the water permeable fabric causing a pro-3 nounced reduction in the water / cement ratio. Curves show actual compressive strength of Fabriform test specimens, averaged from ten widely separated jobs y

y compared with tests on companion specimens cast with identical mortar in AM IN DAYS cony ntional molds.

HYDRAULIC FRICTION Carafully controlled tests conducted in England in 1972 indicated that, for 8" Filter Point reve'tment, the

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coefficient of hydraulic friction "n" as used in the Manning Formula varied from 0 023 to 0.030. depending on depth and velocity in a straight reach of trapezoidal channel. A value of 0.025 is suggested for design purposts.The "n"value of UCS revetment has not been determined experimentally. A value of 0.012 is sugg:sted.

DURABILITY OF NYLON Nylon is immune to attack by mild acids, alkalis, organic solvents, and biological organisms. While the upper lay r of nylon fabric may p_a_ffected by stro 1 sunlignt and by abrasion, the utility of a Fabriform installation will not be impaireJ as evideaced by 10-year service fecords. Sdl which accumulates in the saddles bet-w cn nodules in the deeply textured Filter Points will protect the. s areas. Where appearance is an important consideratiort; the revetment may be spray coated with dilute co ored acrylic emulsion to protect the fabric On th3 crowns of the nodules against ultraviolet light.

STREAM VELOdlTY

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Wit:r velocity over 8" Filter Point revetments at an installation in Columbia. Md., based on data from stream gauging stations, was determined to be about 13 ftJsec. An installation near Bedford. Iowa, was designed for a maximum velocity of 20 ft. per second. Documentpd measurements during flood conditions at this sits indicate a maximurn flow of 7640 cu. ft/sec. and d spcity estimated to be in the range of 15 to 18 ft1sec.

1

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WAVES AND CUFIRENTS IN SHIP CHhNNELS

'"En*s'h7c"a'nS"*""

Wave' and currents generated by the piston effect of large vessels moving site H

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, through ship channels represents one of the most severe challenges to the f

Fabriform erosion control system. Values shown here for an installation on the 8'"""'""

Savannah River were estimated by observers at the site. Wave and current data names a. '

2 24 at ths Thames River installation near Chatham, Ontario, are measured values.

.8 Esumated Man. Wave on Lakes LAKE WAVES I

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Actual measured maximum height of lake waves is rarely available and reported

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observations are of ten misleading. Values shown here are based on the Molitor

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s formula using measured fetch and assumed maximum wind velocity.

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  • n = o.sTWi + 2.s -W EFFECT ON pH OF SURROUNDING WATER l Laboratory tests have demonstrated that cement lost through fabric will average about X% of cement
content with a maximum of

%, equivalent to about 3000 gm of cement per cu. m. of mortar pumped. Tests have likewise demonstrate that the addition of 50 cms of cement to a cubic meter of mortar will raise the pH value about 1.0, well wit in the normal rqnge of pH variation in potablo water-typically 7.0 to 9.5. From this3 facts it may be demonstrated that raise in pH will be limited to no more than 1.0 provided that:

1. In stagnant water-total volume is at least 60 times the volume of concrete pur.'oed.
2. In moving water-the rate of concrete injection in cu. yds /hr. does not exceed tne rate of water flow in cu. yds / min.

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See other side for additionalinformation.

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installation

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0 Fabriform can be placed on steep slo 3es to give more useable land

-l Determine rrom wit l iess slope to protect.

Topograpnic data o No filter underlayment necessary on the area or tabric

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'?9ui'ed. conteen wiii w

most s.o.ils. Fa.lt. form has filterinO submit f abric as-capability bui in.

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c No need to revet an entire slope j"st You' *pp'oa8-(

Y b cause rocks roll down hill. Protect m.

only the area subject to erosion.

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. N,',.k,z surface to be pro.

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'g lected. An ancnor Economy for the contractor

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y of ine siope.

oThe big risk on any job is the cost of labor. Material cost is a known-p n. ~

4 gkg'.

factor.On a typical Fabriform job, Join ne radric paneis 3 *'

s material represents about 80% of la the lield *'th *

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s cost. Labor, equipment, and field -

" $',$n*2 ig* (' ' sb i

m cn Overhead together account for only panels win range up s

about 20%.

to SMo n.' ea'n-

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i ft.2.per shif t on routine jobs.

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r sanoicemeni mortar l o Mobilization cost is low - a pick up

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truck, a grout pump with some hose, gtp ;

be io to 12 cu yos.

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chine and you're ready to go to work.

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3 ancnor trencn first.

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for Case histories use ay,igunytne y,

7, ce t euriap Technical data laseri pipe to make a do

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.W h-Fabric ordering information Detailed field instructions

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.y CONSTRUCTION TECHNIQUES,INC.

11900 Shaker Boulevard. Cleveland, Ohio 44120 Phone:216 623-0679

  • Telex 98 5674 i

i.

TECHNICAL MEMOFIANDUM - INSTALLATION

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of pozzolanicqualityflyashforupto35%of the Order.ing Fabric.

cement is particuiarty recommended as an aid to

1. Fabric panels are assembled to order in pumpability.

cccordance with shop drawinOs prepared by the

2. Excess mixiag water expelled through the installer. Prepare a sketch of each dallerent panel permeable Fabriform f abric will reduce th? volume siza that will be required. instructions for of 27 cu. f t. of wet mortar to about 23-1/2 cu. f t.

pr paration of fabric shop drawings are available of hardened mortar as illustrated by the following cn request. Alternatively. Contech will prepare typical mixes, shop drawings at nominal cost from topographic data furnished Rango of Quantitles - In Pounds Per Cu. Yd.

2.In making a preliminary estimate of the quantity Material As Delivered in Place of fabric required. allow 20% for fabric assembly '

Cement 700-900 800-1000 I

contraction which occurs as a result of filling with Sand 2200-1800 2500-2000 520-630 400-500 mortarand for surIaceirregularities. '

Water

3. A firm ouotation for assembled fabric wit! be
3. Mortar consistency should be in the 9-11 second range through the 3/4" orifice of the standard submitted upon receipt of shop drawings.
4. A minimum f abric inventory of 500.000 sq. ft. is

$p$cYc t oni C9 normally maintained. Normal production is 25.000 sq. ft. per day with delivery to start ten days from Mortar Pumping receipt of assemblydrawings.

1. Insert the injection pipe through a small slit cut in Slope Preparation the upperlayerof fabnc.wra,a mece of burlap h

act as a packer. Use care to

1. For the sake of appearance, revetments shoufp be p h0yd out spi la.

placed over relatively smooth surfaces. Minor.

1 Irregularition are tolerable for the Filter Po6nt.

2. First Dump the upper edge of the mat which has configuratic.i. Since their eflect on appearance will been placed in the anchor trench, followed by be obscured by the deeply textured surf ace of injection into the lower edge, working back up the mat.

the slope. Avoid cver pressuring of the fabric.

2.The upper anchor trench is most conveniently

3. In flowing water, pump the'upsiream edge of the placed at the crown of the slope.

mat first. Maximum allowable water velocity using

'outin nstallation procedures. is about 3 ft.

3[ Place fabric immediately fol'owing grading and pg slope preparation.

. Do not walk od the mat for about one hour af ter j

4. lf backfilling is necessary, use compacted granular pumping or when footprints willleave indentations.

material. If silt content is over 20%. place a spun-bonded filter cloth underlayment.

C. Remove burlap from insert holes and smooth i

mortar by hand.

C Demd

6. Clean up mortar spilled by hand. Do not wash (a
1. Position fabriclooselyalong the bank before. -

down mat with a water hose.

grout injection. Stake f abric at predetermined

7. A typical crew consists of a foreman, pump locations to allow for fabric contraction. Do not

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approximate f abric locations. Measure dimensions *,

operator. and three or four laborers. A diver may be necessary for injecting mortar under water.

on the ba~nk and stake at about 20-It. centers.

j.

' Pumping rate will vary depending on site l

Ssams should be generally perpendicular to the j conditions. On large jobs, placement rates up to shoreline for best appearance.

6.000 sQ f t. per 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> shifI are regularly

2. Fabric panels are joined in the field with a bag achieved.

Closer (portable sewing machine). Lay out the first 4

panel and f old.back the leading edge. Invert the Equipment g

adlacent abutting panel. Join the top layers of

1. Pumping capacity should be about 12 cu. yds. per fabric. Join the bottom layers of fabnc. Fold the hour. Equipment which has been successfully l

joined panels back on the bank with the seams used includes the Thomsen Model 4.5 Mayco down.

c Model C-30. Moyno No. 6 frame or larger, or 3.To avo.d field sewing as much as possible, prepare similar equipment. Use minimum 2 in. pipe or i

L f;bric assembly sketches in such detail that the hose from the pump to a wye fitting and two 1-1/2 great majonty of the sewing can be done prior in. hoses f rom the wye to the fabric.

.t3 delivery.

2. For field sewing. Sac-Up machines are suggested.

l I

4. Provide each job with a small quantity of uncut.

either the ciectric model BB or the air operated l

unassembled f abric for special field tailoring.

  • model DBZ. Machines take 1/4 lb. spools of No.

d T

138 BST white nylon thread.

L

. Mortar Preparation 1.Very fluid sand coment mortar is used in all Fabriform revetment work. Air content of 5 to 8%

l willimprove pumpability of the fluid mortar and freeze / thaw resistance of hardened mortar. Use a f'

r2tarding admixture in hot weather. Substitution l

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t GUIDE SPECIFICATIONS

1. GENERAL

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The surfaces to be protected shall be prepared and graded to such an extent that they are normally stable i the absence of erosive forces. A fabric envelope in a mat configuration shall be p -sitioned over these surface and f4!!ed with a pumpaD!e sand / cement grout in such a way as to form a stable mat of suitable weight a Configuration.

The Contractor shall furnish records cf past success'ul experience in performing this type of work. The Con invention in the performance of this work. tractor shall save the Owner harmless from liabihty of any II. MATERIALS A. Grout shall consist.of a mixture of portland cement, fine aggregate, and water i.o proportioned and to provide a pumpable slurry. Pozzolan and grout fluidifier conforming to these specifications may be use the option of the Contractor. The mix shall exhibit a compressive strength of 2000 psi at 28 days wh and tested in accordance with ASTM C-31 and C-39.

~

B. Fabric forming material shall consist of multiple panem of double-layer. open selvage fabric joined nylon. of which at least 50% by weight shall be bulked continuous multifi

1. Filter Point fabric (designated as FP on drawings) 9.all cc9sist of multiple panels of doubla-layer static uplift pressure. Fi!!er Points shal! be spaced as indicated on drawing. wov
2. Uniform Cross Section fabric (designated as UCS on drawings) shall consist of multiple pane layer fabric joined !cgether by interwoven ties of a uniform length spaced on 1" centers. Hydrostati uplift relief. where required. shall be provided by sewing together the two fabnc layers at locations in the ma.ner indicated on the drawings.
3. Individual mill width panels shall be cut tn suitable length and the

, lbs. per inch.

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4. Fabric porosity is essential for the successful execution of this w sleeves under a pressure of 10 to 15 psi which shall be maintained by means of air pressure or a pipe for 10 minutes. The sleeves shall be constructed of the same fabric used in the indsvidual l fabric. 6" x 12" test cylinders shall be cut from eacn specimen and tested in accordance with A The average compressive strength of the FABRIFORM test cylinders shall be at Icat 20% h da than that of companion test cylinders made in accordance with ASTM C-31, and not less than 25 ps at 28 days.

Ill. PLACEMENT OF GROUT IN MAT FABRIC d

rior to grout injection. the fabnc shall be positioned at its design location. Grout shall be introdu ace between the layers of fabric. Where convenient, a.!!acent fabnc panels shall be joined. befo injection. by field sewing the two layers of fabric separateiy. edge to edge, except that with the a the Engineer or where called for by plans, adjacent par ee mc/ be tapped a minimum of two feet will simplo butt joints be permitted.

TRADEMARK NOTICE:The word "Fabriform"is a registered trademark of Construction Techniqu (CONTECH). This word is to be capitai.ied or enclosed in quotation marks. or both whenever us noction with processes and products described in thosu specifications.

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1.

g.

FABRIC DESCRIPTION FF UCS Fiber Warp-Top & Bottom. Ends /in.

22

22 850 den. Nylon 66 Fill-Top & Bottom. Picks /in.

22 22 965 den. Cordura Drop Stitches 8

1300 den. Nylon 66 Approx. Wt oz/yd.'

.{11.7 22.2 Ship Wt. Ibs/1000 f t.8

'82 157 Ship Vol. It.8/1000 f t.'

_ 5.2 12.1 i

FABRIC TEST DATA Tensito Strength-Warp & Fall Min. 200 s/in.

ASTM D-1682-75 Porosity Min.100 Ft.2/ Min.

ASTM D-737-75

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TECHNICAL DATA.

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Installati~ n g

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2ABRIFORM is a double:larer fabric woven of textured nylon in a tough, 3,

multifilament warp for optimum strength, stability. adhesion, and f altering characteristics. Af ter being placec on the slope to be protected, either M.

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und:r water or in-the-dry, this fabric envelope is filled by pumping into it Mil'."/

c highly fluid sand / cement mortar. The upper edge o" *he revetment is rJf!>.

4i'O' Usually placed in an anchor trench to prevent underr c.ing by groundwater 7

run-off. !! should extend from a point well below minimum low water to a point Cbove maximum anticipated wave run-up.

Available Fabriform Fabric Styles hLitt PosMt lit 68 y

7, i 4

' M hLitt PCMNT e'

N&

10" Filter Point c

E EL N //"*h /*,

Where unusually severe aF asion is anticipated or where e

NE fpe if e.

se

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- rs

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gf t

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'1"'

8" Filtor Point The majority of all Fabriform installations to date have been made 6}

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with 8" Filter Point fabric. As sketches illustrate, the pattera of D,

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% //,% p%,'

filter points is oriented at about 30 to the shoreline to present L1,

==

c p

cm an attractive checkerboard appearance. The cobbled surface of

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d d d,- s d N #~~

Filter Point revetments provides excellent attenuation of (U-v r

hydraulic energy.

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y s.: =

tr en M

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g r eins ewi e1

  • i s a aa O-ce 2

5" Filter Point y

$8$5K,

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For low velocity flows or for light wave action characteristic of j

smtitt recreational ponds,5" Filter Point fabric provides reliable

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protection at minimum cost.

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.a C

SS Uniform C..;.3 Section O

wE.E

'.?:s..;id Used where low permeability and low hydraulic friction is I

on 6

$*g required. Filter Points'.may be installed for relief of uplif t pressure.

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%.mer sm f

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>O f,

6 CUt O

Storm Mat k,h~; %

,'. 6 l '~

?-

StorMats protecting shorelines withs' cod typhoons from the 2

gggad w

, p..s )

East China Sea. Custom assembled up to 24" thick, they may

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be of varying thickness or tapered configuration suitable for (O

$$$$5 p

use as pipeline saddles.

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,9 h

l p

l A$ $ $'n l

s.

J to of l

f2252 QW

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l eW8 12 NS y 2y Soo other sido tot additionauntormation.

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