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Home My WebLink About2001-07-09 Harbor Commission Packet7 ¢l t _ KENAI HARBOR COMMISSION MEETING JULY 9, 2001 ~ KENAI COUNCIL CHAMBERS ?:00 P.M. AGENDA ITEM 1: CALL TO ORDER ~ ROLL CALL ITEM 2: AGENDA APPR4VAL ITEM 3: APPROVAL OF MINUTES -- June 1 l, 2001 . ITEM 4: PERSONS SCHEDULED TO BE HEARD ITEM 5: OLD BUSIl1tFSS a. Discussioa -- Kena.i Coastal Trail ITEM 6: NEW BUSINESS ITEM ?: REPORTS a. Director b. Dock Foreman c. City Council Liaison d. Scrapbook Information ITEM 8: COMMISSIONER COMMENTS / QUESTIONS ITEM 9: INFORMATION a. Kena.i City Council Action Agendas of June 6 and 20, 2001. b. 6 j 26 / O 1 Kevin Waring Associates letter regarding a comprehensive plan briefing to be made at the July 18 Kenai City Council meeting (Commission members are urged to attend~. ITEM 10: ADJOURNMENT ~t ' ~,~ ~.~, ~~~~~ ~~ . , .. '~~ 210 FIDALGO AVE., SUITE 200 KENAI, ALASKA 99611-7794 TELEPHONE 907-283-7535 _ _ FAX 907•283-3014 ~~ ~a~ I I . ~~: Subject: Kenai Coastai Trail Attached is the report entitied "Erosion at the Mouth of the Kenai River, AlaskalAnaiysis of Sediment Budget with regard to the proposed Kenai Coastal Trail and Erosion Control Project" written by Orson Smith, William Lee, and Heike Merkel of the University of Alaska, Anchorage School of Engineering. Dr. Smith's report and transmittal letter conciudes that buiiding the Kenai Coastal Traii wilf not significantly affect the nearby dunes or coastal features. Dr. Srnith is willing to answer questions and to discuss the methods and conciusions of his ) study. Sincerely, ~ Keith Korneiis Public Works Manager KKJjet Attachment April 19, 2001 ,s 5~~ y ~'~ /~~ 9~ NIVERSITY OF LASKA NCHORAGE , ~_ ~,,t . N z ~r .: ~ ~ D ' • ~ ~ 11 Providence Drive 7 b ~~ ~ ~~1~ppPG Anchorage, ,~laska 99508-8~96 SCHOOL ~F ENGINEERING April 9, ?001 Keith Kornelis, Public ~1Uorks Manager City of Kenai 210 Fidalgo Ave. Suite 200 Kenai, Alaska 99611 ~907) i86•1900 ~-~- - . ._._~ . .. Fax (907 ) i 86-1079 ' "".«...-.. . . ,~ .. ~ • ,r~ ' ~ , , ' "~I ~ 1 .. ~ ~ + . r ' ' ~ '~ 1 . . ~ ~ •..w r~~r~~.wrr-•.. ~ ... j ' ... «• ~~ ~ ~ APR l I r1~ ~ 2~ . ___.. .. _ , ~ ~ . ~,~„~ ~: : , . . . ~-----=.,,.,, ': - . „; , :' "' : r. .... ..,~ ---~.,.'.~ ..,., , _ Subject: Erosion at the Mouth of the Kenai River, Alaska Dear Mr. Kornelis, I have enclosed a copy of a report titled as above, dated 5 April 2001. T~iis renort wa~- accomplished through a~rant from Peratrovich, Nottingham, and Drage, Inc., on behalf of the City of Kenai. A team of specialists from the UAA School of Engineering investigated concerns for coastal and riverbank stability fram changes to sediment supply induced by a bluff erosion control project proposed by the City. We conclude that river and coastal features neaxby should not be significantly affected by lass of sediment supply from the eroding bluffs. I will be glad to discuss this in person with you and other interested parties. Sincerely, , Orson P. Smith, PE, Ph.D. Associate Professor, School of Engineering Encl Cf w/encl: Jim Campbell, PN&D A DIVISION OF THE UNIVERSITY OF ALA5KA STATEWIDE SYSTE~i OF HIGHER EDL'CATION . ~, ',~. ~ . ^ - Vn~~~ ~ School of En ineenn . ~ Phone 907 7 9 9 86-1910 3211 Providence Or. Fax 907•786-1079 A11C~101~d Anchorage, AK 99508 Email afo s uaa.alaska.edu ~ PC ^ ^ ^ . ~ . . a sis o imen u e . a o e ro . . . . enai as ra~ ~c~sion n r~ 5 April 2001 By Orson Smith, Wiiliam Lee, and Heike Merkef Erosion at the Mouth of the Kenai River Analysis of Sediment Budget with regard to the proposed Kenai Coastal Trail & Erosion Control Project By Orson Smith, PE, Ph.D. ~, VVilliam Lee~, and Heike Merkel3 Introduction The Univtrsity of Alaska Anchorage (UAA), School of Engineering accepted a research grant from Peratrovich, Nottingham, and Drage, Inc. (PN&D), in December 2000 to investigate concerns for coastal and riverbank stability £rom changes to sediment supply induced by an erosion eontrol project proposed by the City of Ke~i {~igure 1, PN&D 2000). The grant was provided for UAA to conduct an independent study of the sand budget for the beach adjacent to the proposed project in the vicinity of the area known as the Kenai Dunes. UAA was presented with copies of reports, design drawings, survey data, and aerial photographs of the site. Other relevant information was uncovered in the course of the work. UAA investigators made several site visits and attended meetings with government agency representatives and other interest groups to hear their concerns first-hand. This report documents results of the UAA study. ' 1 CITY 0~ KENAI,•AI,ASKA ~ -' '•'' . ~.\` , ,. . - ~r' ; . _. •~~ . . ~ _ _ ~. . ' , r . '' • ~ ` `~~. . • - _ r'/' ,. , . , . , , ' • ~ - ``` . ., '~ / . . , . • . • • ' ' ~.1A~Nhlf'rt !~~~D ~~r/~•r ~ / ,, • - •ff ,`~ r~~.~ ' ~ •• . ' , ~ ', • . . '+ ,.` ' . ~ i ~ ,~1~ ~~ ' ~ ~. • . . • j• .! ~ ' '~~1 ~'~.. `I~~y. -' ~ , .. • •1,`I,1 ~~~Y• ~ ~ ' •. ' r~'r.'i• ~~ • •~ ~'r~.~~~„ ~;. ~V ~ + .ti~ J~•'~! ~i' ~ ' ' . •~.~ ~.4i1~• ~ ,~•~•'~.~' •. ~ 1 . i `~ S-' ~~ ~':~~ :~,f!'~ •~~~~ G~.. ' ~~~r/ ; }"~.~h~ , ~ ~~~~~~ ".• . . ~ ~ • '~• • :~.. f ~Nr (f . y ' • ~ ~~.!~r •...t . ~ . ~ ~+. ~ . • ~ ' ~ ` ' y . •~-, ! r• '~ , ~ • i . y~.~, ,r • ` ~w1./• ~~~'~i ~,•h,•~•• ~ . ' ..~~ • j~ ,r ~ -. ',1~» • .':_ • :.,t' +~, ~;'. . ~M.r~.~ `',•~~ ` j ~ ~ •~f? . ! ~ ' ~ . • ~ +r ~~•~( ~•• ~ , wl Y i ~ ~ ~ ,.ii ~ ~ ~ • ~ • ~.. _ .~ . 7'Y~ `'`~• '~ •''a ~! '1' '..• }- . • . ~ /..~ ~•~ ,- . ,,` ~~:J•• ', r';: .,~ ,M~,~~':~+Z y~~C~. ' ~., ~, ~ ., . / -~. . ,~' a- ~-,~: . ~~ ~ ~_ ~. '• ~~..~•~ . . ='~. Lj'~r~ ~'' x ,,, • .• ~ ~ _, , /` ~, ~ .~ ~ ~ . `~~ i ~~ ~_ .»~~,•• ,N_„id~~~,~ ,!}~~~ _'`• •~' ~ `~ • . - .~, - ~• ,r,yr_ _ •~s' ,~ • .~~; ~ . .~ , f~ SHt a ,~ sht :~ ~ . , _ . . . ~;~ SdT ~ . . g s ~ :ti.R ,. _. ,~ ~ ~_.. `; ,, . f , ,; 11~1'Ci ~1.0 ,,,~,~ ~ ~ J ~ N ~• a~ R'~A `• `' : . ,~_. KEN `~ . ~ 6 ~~ ,,',; • „~ - Eoe ~ ~ ~ sM ';. ., ~~~ ~~~ ~ . , ., , f ~~. =a•KM: ~7irt •. ' ~'` itXOODS ~ \\ Figure 1. Eatent of proposed erosion control along north bank of Kenai River (PN&D 2000). ~ Associate Professor, Civil Engineering, School of Engineering, University of Alaska Anchorage 2 Chief GIS Analyst, Department of Geomatics, School of Engineering, University nf ~laska Anchorage 3 Graduate Student, Arctic Engineenng, School of Engineering, Universiry of Alaska ~=~nchorage Proposed Erosion Control Project The project proposed for construction along the north bank of the Kenai River near its mouth is described in a report by PN&D (2000). The primary intent of the project is to protect the toe of a steep bluff along the one-mile reach of riverbank from erosion by high water, currents, wind, and waves (see Figure 2). The project will also provide a recreational trail for the City. An earlier investigation of erosion roblems at the site P (Carps of Engineers 1997~ also proposed protection of the toe of the e~roding bluff. 'This reach of river is within the s~ong tidal influence o~ Cook Inlet and subject to direct wave attack during storms when wind-induced high water and waves are coincident with hi ~ astronomical tides. The works designed by PN&D (2000) on behalf of the City of Kenai will protect the toe of the bluff from the erosive forces of high water and waves by constructing a berm of varying cross-section with geotextile and rock erosion protection on its seaward slope. The crest of the berm will accommodate a paved pedestrian trail for pedestrian access to the shore and to channel traffic away from unauthorized dangerous trails down the bluff face that exacerbate biuff erosion. The lowest extent of the proposed erosion protection will lie in the upper half of the tidal zone. The adjacent eroding bluff will be graded to a shallower, more stable slope and planted to prevent wind- and runoff-induced erosion. The City of Kenai has already taken steps to prevent excessive loading, concentrated runoff, and other effects of development and human access at the top of the bluff. A conceptual cross-section is shown in Figure 3. 2 F~gure 2. Eroding bluffs at Kenai,l6 February 2001. ----• •-----~ ,~";~-~ ww~w ~ ' ~, ~w~s ww Mr.. :~ ~ . . ~ ~~~~ "~ ` . ~^.~1... : ~ ~-:aM'~, . . ~` - . . ~,,,~ «+R ..:. • ~ ~ ',. ~•~...w~~ . l~I1R M !M • ~ IyrMM 1Cr• ~~ e,. ' .~ ~ M~N~1~'1 ~ .. ~~~~.~ ~~n~j~ t ( {Allf ~ ~ , ~ -+• w.e .wM ~ ~ . ~ I . ~~ 1 ~' . • .~ . i ~ ', ~ ~ '/' "' •wr .. • ~' . Y '. ' . , .."~.. --~~... .,,,~ . ' ' ~. '~~1«1~ ~ ~ ~ • •; • • • •.~'~ ti... . , ~ I •'.f' ~'1f ~ . . . .. . . ~ ~~f •• ~. }~, ~ ~~ M ,•. ~ ~ ~~ , , ~ ~'" ^ ,. . - J MR~.i ~ • ~ , . . y ' . e~cws- •• _ _ ~ Figure 3. Conceptual cross-secnon of proposed erosion coatrot and trail (PN&D 2000). Sediment Budget Issues Government agency representatives have expressed concerns for potentially adverse ~~~nges to the sediment budget at the mouth of the Kenai River in corresPondence to the ~.~ity of Kenai and at meetings held by the City to discuss the project. A letter dated 31 January 2000 from the Alaska Department of Fish and Game to the City of Kenai hypothesized that hydraulic changes induced by the project could: l. "... affect the existing sewage treatment plant site and sewer outfall conditions..." on the Cook Inlet shore north of the Kenai River mouth, 2. "...alter the current erosion and deposition rates of long shore currents in Cook ,Inlet near the mouth of the Kenai River...," 3. "...result in increased erosive forces attacking the ... beach dune area..." downstream of the proposed project, and 4. result in "... catastrophic failure of the project...," implicitly from scour beneath the toe of the proposed erosion con~ol. Owen et al (1997, p. 202) state the following concerns about conditions at the mouth of the Kenai River, with regard to bluff erosion. "...The mouth of the Kenai River is the entrance to the spawning grounds for tens of thousands of salmon. Unfortunately, it seems that about the same number of fisherfolk are strung along the riverbanks on a typical summer day. Residential development and heavy pedestrian traffic are threatening the very resource that fee~s Kenai, the eternally returning salmon. Developers are virtually mining wetlands, increasing bluff erosion, lowering the water table - and eventually river levels - and altering the river's chemistry by adding chlorinated runoff... ...Old Town rests on a bluff about 100 feet high; the bluff is bare and is undergoing constant erosion from waves, tides, wind, and rain. During a 3-day period in 3 early October 1994, a 3-foot-wide strip of bluff collapsed into Cook Inlet. Protectin . , , , g bluff ervsion ls a constant conce~rn for the Kenaz Borough p~anners. Residents feel that a `vast' amount of r.eal estat~ has ~ bee~ lost to the inlet... ...T~ie salution favored by some Kenai res~den~s is a seawall r ndin to the ~~ g gut-level appeal of hard stabilization. Residents should bear in mind the fina~ity of this solubon and realize that it rnight merely transfe~ the effects of wave action from~ one art . _~ . _ : p of ~he:blu#~ed coastl~ne ta anothe~: A seawall vv~ll cut offsand suppiy ta the beach, . .. . causing the.loss of beach in fra-nt of the wal~ and inc~asir~ rates of shoreline erosion on irig .adjacent unwalled beaches. Furt~her, ero~ian from th~ t~ a-f the b1~ffFn~ nat ev _ , p u y en be Y : .. ..:,~: _ .- ~ : affected b the seawall. Much bluff erosion is the result of ra~nfaU and runof~T which is iric~~eased b haltin , y asp g, ground crackua and other rocesses unrela ~ ~ ~ ~ed ta- th~ sea...." . , ~~; 3 ~'~ :' ~ . _ ` ~ ~ , ~,~ ,~ '~ . . , .. "- . , . . :.; . , y~ . ..; . .. . , .. ~ - .,. . .. 'f~ese concems were gene~rall + eated ~b resource~a ency entatives at m' Y~. Y g Y~ eerings held in Kenai 1 December 2400 and 16 ~eb 2001 and in Anchora e 19 Jan ~'Y 8 . . uarY 2~OI. The area immediately downst~ram of the osed ro'ect co~sists of a ridelands : ~P p J beach,topped by a small field of g~~ass•covered dunes, la~own as the Kenai Dunes. Sand . Y coastal tideiands on the Cook Inlet shore north of the nver mouth become smoo~h and broad, as seen in Fi e 4. The Ci of Kenai sewa e tre~atment facili is loca j ~' ~y g ty ted above th~se tidelands, beyond the north erid of the Kenai Dunes. ~ w..~ ~` e.:{ . . . a, ,. . kk .a ~ . . .. . r,, . '~'~ . ' ~. ~ .. ~ ~ ~ .. y. ,~ T~e dunes have been ~eavil im~~ acted b foot traffic in decades ast. The ~' _. Y P Y . p m a n y t r a i l s tl~ou the dune , . . g ~ grass, apPearing in photographs back to t 976, are ~vidence of this impact by pedes~ians. Th~ o enin of a, di net salmon fish in re~cent ears in the , P g P ery r~c y hdelands offshore of the dunes has substan~ally increased hwnan traf~c in this are~ The ~~ity of Kenai has taken a vari of ineasures ta reve~t des~uction ofdunes ~Y , p grass and weathering of the dunes, includin si e in the dunes and lice a~ols for ~ ~g ~ P vehicle and parking management alon the beach access road 'ust behind the dunes. g ~ Analysis Strategy Sediment flux increments are estimated into and out of a con~ol volume consisting of the cross•section illustrated in Figure 5 extended along the shoreline at the proposed project. Figure 5 also illustrates the bluff erosion processes thai prevail at the project site. Incre~ments of sediment flux are listed in Table 1. A negative sediment balance indicates erosion or loss of sediment from within the control volume. A sitive balance indicates . . , , P° ac~~netion. The most sigruficant contnbutors to ~he.balance are evident by their order of magnitude in comparison to smaller, less sigaificant sediment flux increments. The Kenai Dunes area downstream of the ro'CCt 1S d1SCUSS~ lIl tCf111S Of ~1 ~ p ) e same basic processes with emphasis on seasonal cycles that icall affect the stabilit of coastal ~ Y Y dunes. Bluffs dominate the open coast of Cook Inlet and dunes are rare. 4 Blu~shoreline of lower Kenai RIVer at Kenai ~~ wind-itiduc~d udintent tt~nspat (1y ot on beuh ~d bh~s :lope faNre '••• '~~ storm '~•~.~ ~ ~ __~_r-.. - • -''' runo~ 1-2 m initi~l storm ao:ion tids with storm sur e ~nd atorm w~ues ~ mbedded boulder upper beKh (90:1~ torr~- be~ch ~100:1) co~rte ~nd, prauel, m~ditm~ fate set~d and :hingies wwe, tid~l, ~nd river ~ ~~ curre~ts induce sec~merrt w~e-indwxd sedime~t tr~n~port tr~nsport domina~es beach Figure 5. Schematic cross-section of control volume for analvsis of sediment flux. S Ftgure 4. Aeriai photograph of Kenai River mouth,l3 August 1999 (Aeromap US, Anchorage). Table l. Increments of Sediment Flux into and out of Control Volume. Sediment flux into the control volume Sediment tlux out of the control volume Wave-induced lon hore tran ort in Wave-induced lon shore tran art out Wave•induced onshore trans rt Wave-induced offshore ort Wave•induced bluff erosion in River cun~ent-induced rt in River cwrent-induced trans ort out Runoff creek and overland trlans ort in Tidal cw,rent-induced ort in Tidal current-induced rt out Wind-induced tran ort in each & dunes} V~ind trans ort out each & dunes) Wind•induced ort in (blu~ Wind-induced tran ort out (bluf fl Bluff erosion at the project site The historical retreat of the bluffs at the project site is due to a combination of processes. These steep exposed slopes of glacially deposited sediment are oniy marginally stable in the best of conditions at their present angle of repose. Hydrostatic forces easily counteract weak cohesive forces when the sediment is wet, so that the sediment has no bearing capacity. Direct exposure to high water or even to swash from waves weakens the materia~ at the toe until it cannot support the weight of the material above. Combined forces of winds, rain, runoff, and waves and currents at the toe cause localized slope failures that tend to destabilize adjacent slopes. The result is formation of a V-shaped ~k ~ gully extending from top to bottom. The sides of a newly formed gully are too steep to be ~:;., stable in the face of ordinary wind and rain exposure, so they soon ex and laterall to )~ P Y ~~ ~ ~~ form a more rounded indentation in the face of the bluff. Formation and expansion of a ~ ; gully is accelerated by concentrations of surface runoff, runot~ from aquifers exposed in the slope, and any mechanical disturbance such as pedestrian traffic. Ad'acent llies J ~ merge to achieve a long-term inland retreat of the bluff (see Figure 6). VVave• and tide- induced currents, superimposed on steady seaward river currents, carry material deposited at the toe of the bluffs away downst~ram. Figure 6. Evidence of recent erosion of bluffs, looking eastward, lb February 2001. b Quantita~ive bluff retreat estilnated from aerial photography. Aerial photography provides historical evidence of bluff retreat at the project site. A time series was acquired frorn the archives of Aeromap US in Anchorage of vertica~ aerial photos from I9b3 to 1999 of the mouth of the Kenai River and vicinity. Photos from 1963,19b7,1973,197b, 1979,1984,1986,1990, I995,1998, and 1999 were available for the project site and adjacent areas of river and Cook Inlet coast. Most of the photos were of inappropriate scale for geospatial registry and rectification for photog~r~arnmetric analysis. Quantitative analysis of bluff retreat was attempted with images from 1976,1986,1995 and 1999. Intersections of roads visible in each photo were located during a site visit using differential GPS survey equipment. Subsequent application of this survey data to register and rectify the scanned photos proved successfi~l for 1976 and 1999, but difficulties with the other years could not be reconciled without further survey measurements beyo~d the scope and schedule of this project. The limit of vegetation at the top of the bluff is the n~ost consistently visible feature for comparison of bluf~location. The vicinity of the toe of the bluff is discolored by wetness from variable stage of the tide at the time of each photograph. Figure 7 shows the comparison of the location of the top of the bluff between the years I976 and 1999. An estimate of the volume lost from the top to the base of the bluffs during these years is ?40,Q00 cubic yards for an average 32,150 cubic yards lost per year. Assuming a specific weight of 2.? and 30 percent porosity (1.59 tons/cubic yard), this corresponds to an average loss of bluff sediment of about 51,120 tons per year. Wind Analysis Hourly wind speed and direction data from the Kenai Airport were acquired from National Oceanic and Atmospheric Administration archives for the 28-year period from 1973 -?000. These data were analyzed to determine the frequency of occurrence of 7 Figure 1. Comparison of the locations of the top of the bluff in 1976 and 1999. ~ winds in 22.5° increments corresponding to angular sectors between the traditional I6 points of the compass (N-NNE, NNE-NE, NE-ENE, etc.) The sectors of primary interest are those associated with onshare winds at the offshore end of the proposed project, from south (180° True) to WN~V (292° 30' True), referring to the direction from which the wind blows with respect to true north. The distribution of wind speeds in classes of 5 m/sec (about 10 knots) was determined in each of these 22.5° sectors. Figure 8 shows the geometry of the wind sector analysis. Table 2 summarizes the findings relative to analysis of wave-induced longshore transport. Tabl~ 2. Summary of Hourly Directional Wind Speed Analysis, Kenai Airport,1973 - 2000. i0•15 15•20 lower limit upper iimit Fraction of 0- 5 mis 5-10 m!s mis mis > 20 mis Expected Sector degrees deg~ees all speeds 2.5 7.5 12.5 17.5 value (m/s) 1 180 202.5 9.30% 58.20% 39.40% 2.30% 0.42% 0.05% 4.7 Z 102.5 225 9.10% 51.90% 45.70% 2.30% 0.47% 0.03% 4.7 3 225 247.5 5.40% 62.T0% 36.T0% 0.50% 0°/a 0.04% 4.4 4 247.5 270 2.10% 77.90% 22% 0.10% 0% 0.02% 3.6 5 210 292.5 1.90% 83.80% 16% 0.20% 0% 0.03% 3.3 Wave-induced Longshore Transport Analysis Incremental fetches, distances over water that the wind can flow, were derived, as ,~ illustrated in Figure 8. Average depths along these fetches were assumed on the basis of ) Cook Inlet nautical charts. These fetch distances and average depths, at 5.625° intervals, ~ were applied in estimates of offshore wave growth using the CEDAS-ACES (0 2000 Veri-Tech, Inc.) routine for wind speed adjustment and wave growth. The winds were ~ adjusted for the fact that they were observed inland at the Kenai Airport at an elevation of at least 100 feet above the water. The routine computes an average fetch in each sector, given incremental fetches at specified anguiar intervals. Since long-term average wind speeds were applied, a common wind duration of 6 hours was assumed for each expected value, to assure that estimated wave conditions would not be duration limited, but rather would be con~olled by the fetch and average depth along the fetch. The average wave heights thus estimated in each sector were in turn applied in a CEDAS-ACES routine for longshore sediment transport based on deepwater wave heights and angles, assuming sa~nd as the dominant sediment. Uniform medium sub- . angular sand (median grain size ~.25 -~.5 mm) was observed as the predominant beach material in the upper tidelands by the Kenai Dunes through visual classification during site visits and by laboratory tests of beach samples. Pebbles and cobbles lie in longshore lines at high water lines and beach berms, but unifonm sand is the dominant material of the wave-affected beach. The analysis assumed a beach onentation of 280° -100° for that portion of the Kenai Dunes beach adjacent to the proposed project (see Figure 3). The percent occurrence of all wind speeds was applied to weight the longshore transports estimated in each sector. All sectors are oriented such that longshore transport will be eastward, or in the upstream direction along the beach at the Kenai Dunes adjacent to the proposed project. This analysis estimates a long-term avera~e wave-induced longshore sediment transport rate of about 48,000 cubic yards per vear, as summarized in Table 3. 8 F~gure 8. Cook Inlet shoreline and wind sector boundaries affecting the mouth of the Kenai River. Table 3. Summary of Estimated Wave-induced Longshoro Transpon Capacity at Kenai Dunes Sector Average Average ACES ACES H ACES T Crest ACES QI E~ected fetch (nm) depth (ft) avg angle ft sec angle cu ydlyr value 1 26.6 18 196 1.4 2.4 6 52793.5 4910 2 116.7 150 210 1.8 2.9 20 301629 27448 3 41.0 120 232 1.5 2.6 42 278990 15065 4 23.8 120 263 0.9 1.9 73 25607.7 542 5 24.7 120 277 0.7 1.8 8T 224T.3 4~ Sum cu ydlyr 48008 The actual net annual wave-induced longshore transport is probably less than half of the above estimate, closer to 20,000 to 25,000 cubic yards per year eastward (up river), for a number of reasons. First, the ex~eme tidal variation reduces the exposure of the beach sediments in the upper half of the tidelands. At low tide, wave breaking occurs in shallow water offshore of the river mouth and not by the Kenai Dunes beach. Figure 3 shows a broad smooth accumulation of sand across the tidelands on the north side of the river mouth. This accretionary feature is associated with the confluence of coastal and river sediments, due to the dominance of northward longshore transport along the Kenai Peninsula shore. Second, the river currents opposing incoming waves tend to cause breaking in deeper water, ~vhich reduces wave-induced sediment transport at the bed. 9 Third, the overall convex shape of the shore beyond the Kenai Dunes tends to refract waves so that directional bias is reduced along that beach. Finally, winter ice in this area of Cook Inlet tends to armor the beach and the beach sand tends to freeze together to be more resistant to suspension by v~aves. The net wave-induced transport at the Kenai Dunes appears to be the force of their sustenance. The net effect of other sediment transport forces at the dunes is generally seaward. Dunes are rare on the Cook Inlet because of typically high wave energy and prevalence of bluff shores. The Kenai Dunes apparently exist because of their unique east-west orientation on the east shore of Cook Inlet. A dune-associated volumetric transport rate of 25,0~0 cubic yards per year, given a specific gravity of 2.? and 30% porosity is equivalent to a wave-induced sand mass flux of about 39,800 tons per year. Kalifornsky Beach Longshore Transport. The corresponding longshore transport along the north-south oriented coast south of the mouth of the Kenai River was estimated for comparison. The same distribution of offshore wave energy is assumed to exist here, but wave direction with respect to the different shoreline orientation will result in a different transport rate. Table 4 includes a summary of computed values, as those that appear in Table 3. This reach of shoreline is more sheltered from waves in the first sector. Positive transport is northward. The net flow of tidal currents and longer-term circulation of Cook Inlet water are also predominantly northward along this coast. This steeper beach on the open coast is assumed to be subject to wave-induced longshore transport during all stages of the tide. A net northward longshore transport of about 42,500 cubic yards per year is estimated, corresponding to a sand flux northward toward the mouth of the Kenai River of approximately 67,700 tons per year. An equal capacity exists on the open coast north of the mouth of the Kenai River toward Nikiski, where the coast returns to a north-south orientation. The sheltering effect of the shoals at the mouth of the Kenai River reduees northward longshore transport in the immediate vicinity of the river mouth, which helps explain the wide accumulation of sand on the tidelands just north of the mouth (Figure 4). Kalifornsky Beach Estimate ~for compa~ison; beach orientation is 005 -185 degj Sector lower upper Average Average ACES ACES H ACES T Crest ACES QI Expected limit limit fetch (nm) depth (ft) avg angle ft sec angle cu ~dlyr value 2 202.5 225 116.7 150 2i 0 1.8 2.9 65 294375 26788 3 ZZ5 247.5 41.0 120 232 1.5 2.6 43 278TZ1 15051 4 247.5 270 23.8 120 263 0.9 1.9 12 34080 716 5 2T0 292.5 24.7 110 277 0.1 1.8 -2 -3135 ; fiQ 42495 Extreme Wave Conditions. The above analysis is based on long-term average conditions that affect net annual wave-induced longshore transport of beach sand. Wave energy from storms tends to cause offshore transport of sediments. The waves associated with intense storms over Cook Inlet can be destructive to the upper beach and dunes at the mouth of the Kenai River if they occur at the time of an extreme high as~onomical tide. Occurrences of extreme significant wave heights are plotted in terms of probability per year in Figure 9, based on the fetches described above and extreme speeds in the onshore directional sectors from the 1973 -2000 record of hourly winds at the Kenai 10 A' ort. The Kenai Ai ort wind data indicates only five instances from 1973 - 2000 (28 ~ ~ - hour. ears when winds over 15 meters per second (29 knots) have lasted more than an Y ) . • The lon est durarion of winds at these ex~e~me speeds is less than 3 hours. This means g t chance of eak storm waves and storm surge (wind-induced mean water level rise) he p , . . 'n on to of a s rin tide hi water is very small. Storms with susta~ned winds of o c c u rn g p p g ~ knots or more would robabl destroy the Kenai Dunes a l toge t her, i f t he wa v e s b r o k e 30 p Y i ectl in front of the dunes. The photographic evidence is that during the 1973 -1999 dr y period this has not occurred. Extreme Waves Offsshore af the Mlouth af the Kenai River,19T3 - 2000 ~ . ~ •-- .~~~-:-. . . .. ..~ •:•~.;.: ~~.~ ,~ . .~ ,'; ; _ : y;~: •;,...., ,. . ~:'4+~•,~,~'"L'r"ts.'S~ ~' '' ~,•_• ~ y ~- . ~t.. ~,,,, ~ ~°i^~ x:.. ; ';- ` ', . I ~ ~~7 •~.. ~ n. . J' ~ _ ~ k'. ; T'~tM ,,~wr~:~- .. I . .~, ~ -r:.~~Y.I%'~b'.~~ r ~...~~~,lMf~ ^. •~ I ' ~ O~V ° ~'W:1~:'=' w~'~':;ft~ r•~•~ %~.• ~? ~".~ ' M ~r ~• ~`~. '~ ~~ (.~, .. , ~. ..r , .w. . ~ ~ I ~ ~.~y~y~• tiq7„'"~..r ~. ':~•~ t' ~ti.' •~t ~~~.~ ,{. . ~ ~ .r~',a• .. . . .. .. . _ _ y,y~.'.....;ti~Y~ .~r.~ '.f~A~~.h~•, i ~ ~ ..~i.:i~' +!' ~ ' . ~ .'_.- . . " o ~ fi " .. _~~~:~~ ``~`;~~ " ~ #I_lY~,y'S~l1lICt Z:r~~v~ ..~.!..~ ~.. ~+~+-'~ ~tv.w. .~-J'1...w.. ~ °~~':.'~ ` . , 7fl..r. '.r.t.'S'•' ' ~ • .. . ' ~ ~.,;J~~.f~y.~:1r`tr.~i!~Y.s.#~ t ru"~'~~..i~~~-~iY+'~ 1 ~ A .. r: ~`~t~'r• ~q~j ~. ~ ~~ - Esbmated Function ~ O.`~ „ r;i. ~~~,,••.,;r,~, : ,;,~;;, `' "~~ I ~ j'w.'~ :iiti"-.-~~T'.~r',,a~ , ~~~ . O~~0,1973 ~ ~~ ~ :3~ ~`::.~y: .. •~~ ~~ ~ O {.. , ...a~' ~'S+'• ... .,•-,y, ~,~~ t-,,~ ; ?' '"` ~ A ~t ` O~~ y.y. '~'. . e., 4r~ , "~:y'T;'~'~!VA ,~w.._ .. a ..~• ~,;,~;j. ..A.,, ,~: ~ . ;.° ..:.. :~ ..r:~~~,..~.,. .. .;,~ ~:. ~».6 ~r ..1 , .Y-.f~. , ~3' ~ ' ~ . Y, • ;~ ;,'1G~~ . K~: Ir. . ~ ~y`• 4 j' ' ' p 5 10 15 ZO 25 30 Wave Height, H' ~fty Figure 9. Graph of probability that storm significaat wave heights will be equal to or less than a 'ven value in Cook Inlet, offshore of the mouth of the Kenai River, based on analysis of Kenai ~ Airport hourly wind data from 1973 - Z000 and waves that would be generated by these winds. River Sediment Transport Rivers trzans ort sediments in two modes: suspended sediment and bed load. Suspended np sediment is com osed of very small silt and clay particles that settle only in the most P , . . uiescent conditions. Normal river turbulence keeps these particles in continuous q sus ension lendin the river water its turbid appearance. Bed load is primarily sand that p ~ g is intermittentl sus ended in a rolling or hopping mode, called saltation, as river currents Y P c articles downstream. Sediment transport rates, both suspended and bed load, are ~Y p proportional to the flow of the river. The US Geolo 'cal Surve USGS) has made a variet~r of river flow and water quality ~ Y~ measurements of the Kenai River at Soldotna since 19b5. Daily flow measurement statistics from 1965 to 1997 are summarized in Table 5(Benson et al 1998), which illustrate the variability of river flow. 11 Table 5. Stream flow statistics at Soldotna Benson et a11998 . Sta~stic River tlow, cubic feet er second ~ Date Hi est annual mean 8,810 I 1977 Lowest annual mean 4,002 1973 Hi est dail mean ~ 41,400 S t 24,1995 Lowest dail mean 770 A' 11,19bb l4 ercent exceeds 14,100 54 ercent exceeds 3,250 90 eccent exceeds ~ 1,140 The USGS also made intermittent estimates of Kenai River suspended sediment transport at Soldotna from 1967 through 1999 (httu:/lwater.us~s.~ov/ow~/data.html). The overall average of these suspended sediment estimates is 892 tons per day, which is e uivalent to Q 325,600 tons per year. An application of the median flow ("50 percent exceeds", Table 5) and the Meyer-Peter formula (Meyer-Peter, E., and Muller, R.,1948) for bed load (sand) transport leads to an estimate of about 363,400 tons per year at Soldotna. The total sediment transport, suspended sediment and bed load, at Soldotna is on the order of 689,004 tons per year. The rivec picks up more sediment from banks and shoals downstream of Soldotna, so the seciiment load at the mouth is greater. At the project site a total sediment transport rate of over 694,000 tons per year is assumed, 53 percent of which is bed load (i. e., sand). The project is located on a concave river bank (see Figure 7) about %z mile downstream of a sharp bend at Chinuina Point. Figure 10 shows a survey cross section of the existing bluff and river channel at about midway along the subject bluff shore, with the ro osed , , , . , pP pro~ect supenmposed. The deepest point of the channel is on the bluff side of the nver. The strongest river currents in this part of the channel will occur at low tide, when the water level is below the toe of the proposed project. The scale of the scalloped bluff is smaller than the scale of the overall river meander at Chinulna Point. The evidence available points more toward erosion that occurs at high tide when riverine (downstream) current speeds would be minimum. - ~ . . . , , ~r , , , . , , '°~" ~, , , , ------ ; , , , . ~ +ine ~e.~ f~ n ~ ~ ~ . ~ .lo~e.s !~ ~t ~. to ~JOI STA = i5+00.00 ! ~ Figure 10. Survey cross-section of Kenai River and bluff at high tide about half way along the proposed project (adapted from PN&D 2000). 12 Tidal Currents Tidal influence extends ups~eam well above the proposed project. Incoming flood tide water can temporarily reverse the flow of the river in the lower reaches. Flood tide u stream currents are slower than ebb currents in a river channel. Astronomical tidal P influence will generally attenuate the eroding influence of the hydrological flow in the river channel. This flow can be accelerated by ebb tides, but maximum seaward flow velocities generally occur at low tide; when tidal influence is at its minimum. A uantitative estimate of tide-induced currents was not made as a part of this analysis, q requiring a numerical modeling effort beyond the scope and schedule of the project. Tidal currents are assumed to attenuate, rather than acce~erate sediment transport and associated erosion by river currents. V~ind-induced transport The direct (Aeolian) wind-induced transport of beach material will generally be onshore at the site. The bluffs shelter the waterline area from substantial erosion by offshore winds. Wind~ erosion ot'the top of the bluffs by onshore winds is possible and has been observed by the authors in other bluff areas of Cook Inlet. The Kenai Dunes appear to have a cycle of sand replenishment from onshore winds typical of other dune systems on beaches elsewhere. Various authors (e.g., Komar I998} have documented the cammon trend of sea dune building associated with prevailing onshore winds in mild weather. Dune grass (sea oats at Kenai) and other plant species growing on dunes (e.g., ice plant on the California coast) are integral to the process by slowing the wind speed such that sand accumulates on the dunes. This slow, but steady growth during mild summer conditions generaliy offsets sediment losses during severe winds, high water and direct wave attack during winter storms. The health of dune plants is therefore vital to their continued existence. An analytical estimate of Aeolian sediment ~ansport is not practical with the data on hand at the Kenai Dunes. Specialized field measurements would be required. The rate of accumulation is apparently adequate to maintain the dunes in their present location since before 19b7, judging from their consistent location and appearance in a11 the historical photos of the area that were reviewed. This, in concert with wave- induced longshore transport in the upstream direction, explains the rare existence of a stable dune system aiong the Cook Inlet coast where a bluff shoreline otherwise prevails. Summary The Kenai River typically carries over 690,000 tons of sediment per year past the project site. The estimated average sand (bed load) fraction ot~this is over 363,000 tons per year. The bluff erosion at the proposed proj ect site adds about 5 I,000 tons per year to the riverine mass flux, less that 7 percent of the total sediment transport at the site. The proposed project would eliminate the 7 percent bluff contribution. Coastal sand driven by wave energy reaches the mouth of the Kenai River from the south (Kalifornsky Beach) at an average 68,000 tons per year. This wave-induced longshore 13 transport picks up to the same level in the same direction north of the river mouth toward N1k1S1C1. The river sediment flux into Cook Inlet provides a concentrated surpius supply of sand for wave-induced northward longshore transport. Some of this surplus is retained on the beach system associated with the Kenai Dunes. The rest is deposited in the smooth broad sandy tidelands deposit seen in Figure 3. The orientation of the shore at the Kenai Dunes causes waves to drive sand upriver at about 40,000 tons per year. Historical photographs indicate no significant change of geomeriy at the dunes over the last 3 0 years or more. This equilibrium indicates wave- induced accretion balances erosion by river currents, winds, or other forces. Conclusions The proposed construction will protect the subject one-mile stretch of bluffs along the north bank of the Kenai River from erosion by extreme high water and waves. The toe of the construction is located above tbe water most of the time. River currents will only affect sediments on the riverbank below the toe of the construction. Bluff erosion appears to be primarily associated with ex~eme high tides and wave acrion. The influence of river currents is weaker and indirect, occuring well below the toe of the bluffs. Sediment lost from the bluff is apparently carried less than one mile downstream to the river mouth, where wave-induced Iongshore ri~ansport becomes dominant. The proposed project will reduce the sediment load at the mouth of the Kenai River by ~ less than 7 percent. There a ears to be no reason to fear a future erosion ~end at the _ PP - dunes or northward along the beach toward Nikiski, since sand supply will still far : exceed longshore transport capacity. Dispersion of effluent from the sewage ~eatment plant in coastal waters will not be measurably affected. The worst risk to the Kenai Dunes will continue to be the trampling of dune vegetation by human visitors and direct wave attack during the very rare event of an extreme storm superimposed on an ex~eme high astronomical tide. 14 References . Benson, S., Hess, D., Meyer, D., Peck, K., and Swanner. ~V.,1998. "Water Resources Data. Alaska, Water Year 1997," US Geological Survey Water Data Report AK-97-1 Corps of Engineers,1997. "Reconnaissance Report fo Navigation Improvements and Erosion Control, Lower Kenai River,'' US Army Corps of Engineers, Anchorage Komar, P. 1998. Beach Processes and Sedimentation, Znd ~., Prentice Hall, Upper ~ Saddle River, NJ Alaska Dept. Fish and Game, letter dated 31 January 2000 to Keith Kornelius, City En 'neer, Ci of Kenai, si ed by Gary Liepitz, Alaska Dept. Fish and Game. ~ ~ ~ Mason, 0., Neal, W., Pilkey, 0., Bullock, J., Fathauer, T., Pilkey, D., and Swanson, D., 1997. Livin~ with the Coast of Alaska, Duke University Press, Durham, NC Meyer-Peter, E., and Muller, R.,1948. "Formulas for Bed-Load Transport," Report on Znd meetin of International Association for Hydraulic Research, Stockholm, pp. 39-64. g PN&D 2000. "Kenai Coastal Trail & Erosion Control Project, Design Concept Report" Peta~ovich, Nottingham, & Drage, Inc., prepared for the City of Kenai, Alaska 15 ~~,~~ E%iiv ~ ~ ~ KEHAI HARBOR COMMISSI~N MEETING i ~n~ i 1, Zoo i KENAI COUNCIL CHAII~BERS ?:00 P.M. AGENDA ITEM 1: CALL TO ORDER & ROLL CALL _ ITEM 2: AGENDA APPROVAL ITEM 3: APPROVAL OF MIHUTES -- Apri19, 2001 and May 7, 2001 ITEM 4: PERS~NS SCHEDULED TO BE HEARD ITEM 5: OLD BUSINESS a. Discussion -- Kenai River~ Bridge Access Road Pathway Update ITEM fi: HEW BUSINESS a. Discussion -- Dock Rate Schedule, May 1, 2001 ITEM 7: REPORTS ) a. Director b. Dock Foreman c. City Council Liaison d. Scrapbook Information ITEM 8: C4MMISSIONER CONJ[MENTS / UESTIONS ITEM 9: INF~RMATION a. Kenai City Council Action Agendas of May 2, 16 and 30, 2001. b. 5/ 30 / O 1 F. C. Rogers letter regarding absence from 6/ 11 / O 1 meeting. ITEM 10: ADJDURNMENT KENAI HARB~R COMMISSION MEETING J't~NE 12, 2001 KENAI COUHCIL CHAMBERS 7:00 P.M. CHAIRM~AN TOM TH~MPSON, PRESIDING MIHUTES ITEM 1: CALL TO ORDER 8a ROLL CALL Chairman Tom Thompson called the meet~inng to order at 7:00 p.m. Members Present: Members Absent: Others Preseat: ITEM 2: MOTI4N: Eldridge, Peters, Price, Spracher, Thompson Rogers Councilman Bookey, Manager Kornelis, Contract Secretary Roper AGENDA APPR4VAL Commissioner Eldridge MOVED to approve the agenda and Commissioner Peters SECONDED the motion. There were no objections. SO ~RDERED. ITEM 3: APPR~VAL OF MINUTES -~Apri19, 2001 and May 7, 2001 MOTION: Commissioner Spracher MOVED to approve the minutes of Apri19 and May 7, 2001. Commissioner Price SECONDED the motion. There were no objections. SO ORDERED. ITEM 4: PERSONS SCHEDULED TO BE H~ARD - None ITEM 5: OLD BUSINESS 5-a. Discussion - Kena.i River Bridge Access Road Pathway Update Kornelis reported an open house meeting was held on May 15 to review the project and hear public comment. The Harbor Commission discussed the possible routes in detail. Kornelis encouraged everyone to complete the Comment Form included in the meeting packet u1 order to get the~r concerns and/ or ideas to those involved in the planning. These comment forms could be turned it at City Hall. Kornelis reported petitions favoring the project are being circulated for signatures. MOTION: Commissioner Eldridge M~VED to recommend that City Council accept the pathway connecting Kalifornsky Beach Road and Kenai and to use as much separation between the traffic and pathway as can be accommodated. Commissioner Peters SECONDED the motion. There were no objections. SO 4RDERED. 5-b. Coastal Trail Update Commissioner Eldridge asked for a status update on the Coastal Traii and both Councilman Bookey and Kornelis replied that no further activity had taken place since the last report. ITEM 6: HE~V BUSINESS 6-a. Discussioa - Dock Rate Schedule, May l, 2001 Kornelis indicated the new dock rate schedule was included in the meeting packet for informational purposes only. The rate schedule had been approved and was in place. ITEM ?: REPORTS 7-a. Director -- Ko~-nelis reported a request had been made by R&~J Seafoods for storage in the boat yard. This request is being considered. Other activity at the dock include the summer hire (Bob Dietrich is back at work); fish is being offloaded at the dock; a crane inspection is being scheduled and all the fuel lines had been checked. ?-b. Dock Foreman -- No report ?-c. City Council Liaison -- Councilman Bookey reported that the budget has been passed and the new City Manager will begin her position on July 16. Bookey noted that the dunes look the best they have in many years. 7-d. Scrapbook Information -- Peters announced the July meeting will be her last and she is looking ahead to handing the scrapbook responsibility over to another Commissioner. ITEM 8: COMMISSIONER CONJ[MENTS / UESTIONS Commissioaer Thompson asked if there would be summer hire help at the dock during dip net season. Kornelis replied that assistance would be provided by the Parks Department. `~ HARB~R COMMISSION MEETING I - JUNE 11, 2001 PAGE 2 Commissioner Price announced that he would have to resign as he is moving to Funny River Road. Price indicated the July meeting would be his last. Council~nan Bookey requested that if anyone knew of someone who would be willing to sit on the Harbor Conlmission to have them contact Clerk Freas. Bookey noted that with Peters and Price leaving that would leave three openings on the Commission. ITEM 9: INFO~;MATION 9-a. Kenai City Council Action Agendas of May 2, 16, and 30, 2001. 9-b. 5/ 30 / O 1 F. C. Rogers letters regarding absence from b/ 11 / O 1 meeting. ITEM 10: ADJOURNMEHT~ MOTION: Commissioner Peters MOVED to adjourn. There were no objections. SO ORDERED. The meeting adjourned at 7:40 p.m. Respectfully submitted, Barbara Roper, Contract Secretary HARBOR COMMISSION MEETING JUNE 11, 2001 PAGE 3 ~~~9 ~~ ~ AGENDA KENAI CITY COUNCIL - REGULAR MEETING ~n~ 6, 20o i ?:00 P.M. KENAI CITY COUNCIL CHAMBERS htt~p: / /www.ci.kenai.ak.us ITEM A: CALL TO ORDER 1. Pledge of Allegiance 2. Roll Call 3. Agenda Approval 4. Consent Agenda *All items listed with an asterisk (*) are considered to be routine and non- controversial by the council and will be approved by one motion. There will be no separate discussion of these items unless a council member so requests, in which case the item will be removed from the consent agenda and considered in its normal sequence on the agenda as part of the General Orders. ITEM B: ITEM C: SCHEDULED PUBLIC COMMENTS (10 minutes) PZTBLIC HE~ARINGS ~, 1. Ord~nance No. 1913-2001-- Adopting the Annual Bud et for the Fiscal g Year Cornmencing July 1, 2001 and Ending June 30, 2002. 2. Resolution No. 2001-34 -- Fixing the Rate of Levy of Property Tax for the Fiscal Year Commencing July 1, 2001 and Ending June 30, 2002. 3. Resolution No. 2001-35 -- Transferring ~7,20~ in the General Fund Shop for Purchase of Grader Tires. 4. Resolutioa No. 2001-36 -- Transferring ~ 19, 870 in the Street Improvements Capital Project F~,ind for Engineering the Mission, Cook, Upland and Ma.in Improvement Project. 5. Resolutioa Ho. 2001-3? -- Transferring ~9,420 in the General Fund to Purchase Communications Department Office ~,trniture. 6. Resolution Ho. 2001-38 -- Awarding the Bid to Air Tek, Inc. for Kenai Airport Terminal Fluorescent Light Repair and Replacement - 2001 for the Basic Bed of ~9,765.00 Plus Additive Alternates 1, 2 and 3 at $29,504.00 for a Total of $39,269.00. 7. *Transfer of Liquor Licease -- Transfer From to Schilling Alaska, Inc., d/ b/ a Uptoum Motel/ Louie's to Same Corporation Owned by Different 1 Share Holders. -1- ITEM D: C4MMISSION/COMMITTEE REP~RTS 1. Council on Aging 2. Airport Commission ~ 3. Harbor Commission 4. Library Commission 5. Parks 8~ Recreation Commission 6. Planning & Zoning Commission ?. Miscellaneous Com~nissions and Committees a. Beautification Committee b. Kena.i Convention 8~ Visitors Bureau Board c. Alaska Municip~l League Report ITENI E: ~TES 1. *Regular Meeting of May 16, 2001. 2. *Special Meeting of May 30, 2001. ITEM F: CORRESPOHDENCE ITEM G: OLD BUSINESS ITEM H: NE~V BUSIl1TESS ~h~~ 1. ~ Bills to be Paid, Bills to be Ratified ~~~ ~ ~ 2. Purchase Orders Exceeding ~2,500 3, *Ordinauce No. 1914-2001-- Increasing Estimated Revenues and Appropriations by $1,635,000 in the General Fund for Transfer to the Multipurpose Facility Capital Project ~,ind and the Skateboard Park Capital Proj ect Fund. 4. *Ordiaance No.1915-Z001-- Amending KMC 14.20.321(Bed and Breakfast Establishments) to Provide: 1) That Applicants Must Provide Evidence of Being Current on All City Obligations Prior to Issuance of a Permit; 2) To Provide for an Annual /Report Summarizing On-Site Activity for the Year; 3) Setting Forth Standards for Revocation of Conditional Use Permits for Non-Compliance with the Terms of the Permit, Violations of the Kenai Zoning Code, or Delinquency in City Obligations. 5. *Ordinance No. 1916-2001-- Amending KMC 14.20.150 (Conditional Uses) to Provide: 1) That Applicants Must Provide Evidence of Being Current on All City Obligations Prior to Issuance of a Permit; 2) To Provide for an Annual Report Summarizing On-Site Activity for the Year; 3) Setting Forth Standards for Revocation of Conditional Use Permits for Non-Compliance with the Terms of the Perrnit, Violations of the Kenai -2- Zoning Code, or Delinquency in City Obligations. i 6. *Ordinance No. 191?-2001-- Increasing Estimated Revenues and Appropriations by ~3,562.50 in the General F~,ind for Police Department Small Tools. 'l. *Ordiaance No. 1918•2001-- Increasing Estimated Revenues and Appropriations by $50,000 in the Bridge Access Road Water and Sewer Capital Proj ect ~,ind. 8. *Ordiaance No. 1919•2001-- Increasing Estimated Revenues and Appropriations by $30,000 in the ~Tater and Sewer ~.tnd and the Gill Street Crossing Capital Project ~.ind for a New Water Ma.in. ITEM I: ADNIINISfiRA-TION REPORTS l. Mayor 2. City Manager 3. Attorney 4. City Clerk 5. Finance Director 6. Public Works Managers 7. Airport Manager ITEM J: DISCUSSION 1. Citizens (five minutes) 2. Council EXECUTIVE SESSION - None Scheduled ITEM K: ADJOURNMENT -3- AGEHDA KENAI CITY C~~JNCIL - REGULAR MEETIHG JUNE 20, 2001 ?:00 P.M. KENAI CITY COUNCIL CHAl1~BERS http: / Iwww.ci.kenai.ak.us ITEM A: CALL TO ORDER 1. Pledge of Allegiance 2. Roll Call 3. Agenda Approval 4. Consent Agenda *All items listed with an asterisk (*j are considered to be routine and non-controversial by the council and will be approved by one motion. There will be no separate discussion of these items unless a council member so requests, in which case the item will be removed from the consent agenda and considered in its normal sequence on the agenda as part of the Generai Orders. ITEM B: SCHEDULED PUBLIC COMMENTS (10 minutes) 1. Jiin Bielefeld -- Peninsula Air Fair Update ITEM C: PUBLIC HEARINGS ~ 1. Ordinaace No. 1914-2001-- Increasing Estimated Revenues and Appropriations by $1,635,400 in the General Fund for Transfer to the Multipurpose Facility Capital Project Fund and the Skateboard Park Capital Project Fund. `~ a. Substitute Ordinance No. 1914-Z001-- Increasing Estimated Revenues ~ • and A ro riations b 174 ' pp p y$, 5,000 in the General Fund For Transfer to the Multipurpose Facility Capital Project Fund and the Skateboard Park Capital Project Fund. ~ 2. , Ordinance l~o. 1915•2001-- Amending KMC 14.20.321 (Bed and Breakfast Establishments) to Provide: 1) That Applicants Must Provide Evidence of Being C urrent on All City Obligations Prior to Issuance of a Permit; 2) To Provide for an Annual / Report Summarizing On-Site Activity for the Year~, 3) Setting Forth Standards for Revocation of Conditional Use Permits for Non-Compliance with the Terms of the Permit, Violations of the Kenai Zoning Code, or Delinquency in City Obligations. ~~c~~r.~~ 3. Ordiaance No. 1916-2001-- Amending KMC 14.20.15~ Conditional Uses to ( 1 ~ ' , Prov~de: 1) That Applicants Must Provide Evidence of Being Current on All City Obligations Prior to Issuance of a Permit~ 2 To Provide for an Annual R ~ ) eport Summarizing On-Site Activity for the Year; 3) Setting Forth Standards for Revocation of Conditional Use Permits for Non-Compliance with the Terms of the Permit, Violations of the Kenai Zoning Code, or Delinquency in City Obligations. -1- 4. Ordiaance No. 191?-2001-- Increasing Estimated Revenues and ~• ' Appropriations by $3,562.50 in the ~eneral Fund for Police Department Small Tools. ~ 5. Ordiaance No. 1918-2001-- Increasing Estimated Revenues and ' Appropriations by $50,000 in the Bridge Access Road Water and Sewer Capital Project ~nd. 6. Ordinance Ho. 1919-2001-- Increasing Estimated Revenues and Appropriations by $30,000 in the Water and Sewer Fund and the Gill Street Crossing Capital Project Fund for a New VVater Main. ,_._.~....~- a. substitute Ordinanc~ No. 1919-2001-- Increasing Estimated Revenues and appropriations by $41,OQ0 in the Wafier and Sew~er Fund and the Gill . Street Crossing Capital Project Fund for a New V~later M~in. ~, 7. Reaolution No. 2001•39 -- Awarding Janitorial Contracts for the City ~~ . . Administration Bu~ldin~ and the Kenai Community Library to Integrity Janitorial , Company for the Period July 1, 2001 Through June 30, 2002. 8. Reaolution No. 2~01•40 -- Awarding a Contract for Professional Engineering Services for the Project Entitled Wastewater Faciiity Master Plan to CH2M Hill for the Not-to-Exceed Amount of $275,000. 9. Resolution No. 2001•41-- Transferring $ I2,089 in the Water and Sewer Special Revenue Fund to Increase Funds Available to Purchase a Steam Generator. 10. R~aolutioa No. 2001-42 -- Transferring $ I5,000 in the Airport Land System Special Revenue Fund for Soil Excavation and Testing at the Jet Fuel Facility. 1 I. R~solution Ho. 2001-43 -- Awarding the Bid to Bob's Services, Inc. for a Steam Generator-2001 for the Total Amount of $? 1,982. 12. Reaolutioa No. 2001-44 -- Approving a Contract to Peninsula Construction, Inc. for the Project Enti~led, "Mission Avenue, Cook Avenue, Upland Street and Main Street -- Street Improvements" for the Total Amount of $162,952.10. 13. Reaolution No. 2001-45 -- Awarding a Contract to Harbor Enterprises, Inc., d/b/a Kenai Petxol Express for Furnishing and Dispensing Unleaded Fuel at the Service Station Located at 11152 Kenai Spur Highway. 14. Reaolution No. 2401-46 -- Awarding Contracts to Doyle's Fuel Service, Inc. to Furnish and Deliver Unleaded Fuel and to Harbor Enterprises, Inc., d/b/a Alaska Oil Sales to Furnish and Deliver Diesel Fuel No. 1 and No. 2. 15. ~ Resolution No. 2001•47 -- Awarding a Contract to Blazy Construction for the Project Entitled, "Multipurpose Facility Refrigeration 200I" for the Basic Bid Plus All Altemates for the Total Amount of $1,231,986. 16. Resolution No. 2001-48 -- Approving an Amendment Adding Construction Administration and Inspection Services to Architects Alaska/ Klauder & Co. Associated Architect's Professional Services Agreement on the Project Entitled, Multipurpose Facility Refrigeration 2001" for the Not-to-Exceed Amount of $59,500. -2- 17. *Liquor License Transfer -- Uptown Motel/ Louie's; Schilling Alaska Inc., Stock Transfer. ITEM D: COMMISSIONI C~MMITTEE REPORTS 1. Council on Aging 2. Airport Commission 3. Harbor Commission 4, Library Commission 5. Parks & Recrea~on Commission 6. Planning & Zoning Commission 7. Miscellaneous Commissions and Committees a. Beautification Committee b. Kenai Convention & Visitors Bureau Board c. Alaska Municipal League Report ITEM E: MIHUTES 1. *Regular Meeting of June b, 2001. ITEM F: CORRESP4NDENCE ITEM G: OLD BUSINESS ITEM H: HE~V BUSINESS ~~u'~ 1. Bills to be Paid Bills to be R' , at~fied ~~ 2. Purchase Orders Exceeding $2,500 . ~ ~ 3. *Ordinaace Ho. 19Z0•2001-- Increasin Estimated Revenues and ~~~~ /r-~ . . , g Appropnat~ons by $21,000 in the Airport Land System Special Revenue Fund, the General Fund and the Bridge Access/ Frontage Water Main Capital Projects ~und. 4. Approval -- Kenai Municipal Airport Logo 5. Approval -- ERA Aviation Lease Renewal/2001-2006. 6. Approval -- Assignment of Lease -- Dan Roberts to Pingo Properties, Inc. and Geoffrey M. Graves, Individually/ Lot 6A, Block I, Gusty Subdivision No. 4. 7. Approval -- Sublease Agreement -- Robert J. Johnson to Mitchell's Auto and Truck Repair, Inc. / Lot 5, Block 5, General Aviation Apron. 8. Approval -- Approval of Capital Project -- Water Lines in Support of FAA Tract; Tract C, Daubenspeck; and BOR Restricted Airport Lands Tract. 9. Approval -- Sale of Lots 18, 19, 20, 26 & 27, Block 12, Inlet Woods Subdivision -- Sale Brochure. 10. Approval -- Sale of Lot 12, Block 13 and Lot 8, Block 1 l, Inlet ~loods Subdivision -- Sale Brochure. 11. Approval -• Kenai Spur Unity Trail Easement (Near 8eaver Creek). -3- IT~EM I: ADMIIITISTRATION REPORTS 1. Mayor 2. City Manager 3. Attorney 4, City Clerk 5. Finance Director 6. Fublic Works Managers 7, Airport Manager ITEM J: DISCUSSION 1. Citi~ens (five minutes~ 2. Council EXECUTIVE SESSIOH - None Scheduled ITEM K: ADJOURNMENT -4- .~ , ~ - - FROM : FAX N0. : 9073376096 Jun. 27 2001 08:32AM PZ~ ~ ~ KEVIN WARING ASSOCIATES ~ ~• pianning • econornics . managemenc June 28, 2001 The Honorabie John J. Williams Mayor of the City ofi Kenai 210 Fidaigo Avenue Kenai, AK 7794 Dear Mayor Williams: . RE~EIV~~ ' ' w~~ . 2 T 2ooi ± ~ ~ { K~NAI C1TY CLER K' The City of Kenai recen~y serected Kevin Waring Associa~~s to pr~pare ~he Ci 's new Comprehensive Plan. 1~11e are scheduied to bnef you and City Council ~ ~ ~ , members on the to'ect at Yhe City CouRCi!'s July 18~' meeting. This letter is to pJ introduce you and coun~il membe~s ~o some key ~a~ts about th~ project in advance of the July 18~' meeting. • Project purpose. The purpose of the ptoje~t is to develop a new strategic Comprehensive Plan for land use and communi~y improvements for adoption and implemen~ation by the City of Kenai. • Special issues. Speciai afi~en~on wiil be give to planning issues related to the Daubenspeck Tract, the Kenai Spur Highway corridor, and the municipal airport. • Stra~egic planning workshop. !n September, ~he planning team will conduct a iocal strategic planning workshop with P&~ ~ommissioners and a broad cross-sec~on of the community to develop s~ategic goals for fhe Comprehensive Plan. • Pubtic ardci a~on and review, The work plan provides for substantiai p p work time ~n Kenai for data collec~ion and ~nterviews, and workshops artd rev'tews with the Planning Commission and advisory groups. The consultant team and city staffv~ill also combine efforts on a pubiic information program about the project. ~ ~ 2020 Banbury C;rcle ~ Anchorage, Rl~ska 945~~ •~q0~ 337- FROM : FAX N0. : 9073376096 Jun, 27 2001 08:07AM P3 • produc~s, 1'he ro'ectwill produce a new Comprehensirre Plan ~hat P1 addresses future land use and community improvements, aiong with an im lementation !an ofi recommended acfions to ~arry out the plan. The p P , . .. fan will be a working tooi for the C~~y as it rnakes rna~or dec~sions about P future community development. Schetlule. We have begun collecting and analyzing backqround in rmation. Yhe Sfra~: ic Piannin9 Workshop is planned for Septembe~, fo g with additiona! local meetings to ~eview interim repo~ts and plan altematives as the ro'ect progresses. Ou~ goai is to complete a Finaf, p1 , , ,. Dra~t Pian, a proved by the Plann~ng and Zon~ng Commiss~on, by nex~ P hJlay. • Consultant team. The consuftant team consis~ of Kevin UVaring of Kevin Warin Asso~iates (Anchorage), Eileen Bech~ol of Bechtoi Planning and 9 , Development (Homer), and Elizabeth Benson of Benson Planning Associates (Anchorage}, Together, t~e planning team has over six dec,~des of planning experien~e with Alaska communi~es. In closin , our professionai cornmitment is ~o provide the ~it~ of Kenai with new 9 . . Comprehensive Pian that reflects community goals, responds to co~tmun~ty concems, has public acceptance, and can serve as a pract~cal planning guide as the City of Kenai grows and develops in the yea~s a hea d. d m etin with ou and the Ci Council on July 18~', and an I look forwar to e g Y ~Y , . 0 ortuni to respond to any questions or ~ssues ~hat you or C~~y Counc~i PP ~Y members may have about the pro~e~t at that time. Very truly yours, , Kevin Wanng