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City Council Agenda Packet 04-11-1977AGENDA REGULAR MEETING MONTICELLO CITY COUNCIL April 11, 1977 - 7:30 P.M. Mayor: Con Johnson Councilmen: Arve Grimsmo, Dan Blonigen Stanley Hall, Gene Walters Meeting to be taped. ,/Citizen Comments. J. Consideration of Final Approval - Roden Acres. W2. Consideration of Trailer/Camper Parking Lot for Municipal Liquor Store. �. Consideration of Additional Landscaping at Municipal Liquor Store. tf3. Consideration oV Park Improvements. �. Consideration of Landscaping and Parking; Lot - Maintenance I Building. Rcvi ew of Street. Report. -7. Approval of minutes. �. Unfinished bumineu. M� Vel. New M:rinema. 1" -C1 j.16net-,u.- Saws 10 uc. CAC J. 3' AGENDA SUPPLEMENT Agenda Item 1. Consideration of Final. Approval - Roden Acres. Mr. Gregory Roden is submitting his 568 acre plat to the city council for final_ approval. The plat has been previously submitted and approved in pre- liminary form to the planning commission and city council . Mr. Roden's plat consists of five lots, all of which border Otter Crock to the south and River Street to the north (see enclosed map). All fees, including the 10% park dedication fee, have been paid. Since all ordinances have been met and Pecs paid :I would recommend approval, of this plat. POSS30LE ACTION: Consideration of approva of Final plat. REFERENCES: Copy of plat available at City Hall, Enclosed Map. Agenda Item 2. Consideration nP Trat.l.er/Camper Pnrkine Lot: for Municipal Liquor Store. MonLicel.lo's new oPP sale liquor store currently has parking spaces provided for thirty (30) vehicles. Usually this is ndequato, although the liquor store manager has indicated there have been times on summer weekend nights and just prior to Christmas and New Ycnrs that parking has been a problem. However, other parking problems Ihnve occurred as a result nP campers, !"go trucks and vehicles p0l.i.ng trailers. Sometimes these units will Lake up as many as five spaces and will disrupt the .Intended parking patcorn of the existing lot•. Additionally, there is Cho unknown Pnctcr of how m ny units of this type do not stop at all bernuse of Clio lack of snPPMi.ent spare aval.lable. As a result, of this problem, the, Pensi.blA i.t.y and cost of nddAM a park - Ing area for these "nits has boon reviewed by Mnrk Irmiter, Mike Rajnln, and myself. From feasi.bi-lity standpoint, four possible areas were reviewed and advantages and disadvantages are listed below: WEST SIDE OF STORK (REAR) Advantage 1. Cost would be m:i.nimal, as exi.st.i.ng rear lot could be nt:LHzed and s1dewalk added for access to front door. D.i.sadvan Lagos I. Distance from front door. 2. Possi.bl.c dismption of delAvcHes to rear entrance. 3. Customers walki-ng on grass. 4. V.is.i.bi.l.f.ty of lot, not too good from II.ighway #25. EAST S1DIi 017 S'1'ORIi (FRONT) Immodintel.y cast of cx:i.stJ.ng lot towards Ili.9liway #25. Ad van to ges I. Good v.i.s.i.bi..liLy of l.ot. 2. D.i-stance to front door. Disadvantages I. Aest;hcti.c appearance of s:i.tc would be dl.m.inished as vi.ewect from Ili.ghway #25. 2. Separate accesses would be nc(lessar-y of(? S.i.xth and Fifth st.rects to segregate this lot; from existing lot. SOUTH S:I:DIi OF S111ORIi (Towards 81-xth Street) Ad van 1;a ge 1. Gond v,i sl i I I Ly i'rmn 11 I ghway 25 D.i.sad va n to ges I. Disruption of draintAge pattern. 2. F.11.1 nroded. 3. Ordinnnoo rcqu.i.res parking lot. to be 5 fent, from Int; :lines. and .it, would bo n "tAght; squeeie" to fit; in a 24-26 foot w1cle lot. -2- NORT11 SIDE OF STORE. (Towards Fifth Street) Advantages 1. Would not destroy aesthetic appearance of store from Ilighway 25 to any great extent. 2. Cost of improvement would be less expensive than adding parking lotto cast or south. Disadvantages 1. Di -stance from front door. 2. Visibility not too great from Highway 25. In summary, each one of the sites has some dis- advantages and a fifth alternative would be to do nothing and this should certainly be considered. IIOweVel', aur recommendation would be to add a park- ing lot on the north side towards Fifth Street'. Cost of such a .Lot providing space for 4-5 units would be about $S50 including directional, signs indicating its intended use for campers and trailers. Cost of adding a parking lot to the cast or south would be sl..i.ghti.y more or about $1000 to $1200. Cost of having trailers park in rear and adding sidewalk on one side wou.l.d be about $500. It would seem that a parking lot for tral.lers and campers would warrant the added cost of such a lot sLnce the location of the liquor store is conducive A' to this type of trade. 4 POSSIBLE AC'T'ION: Consideration of parking lot for \ VVV Liquor Store. Agenda Item 3. Consi.derati.on of Addi.tionnl Landscaping nt. Mnn.ic.ival I..i rplor Store. Pursuant to the enunei.l.'s r1_qucst, the question of add.it.iona.l .landscaping nt 0113 liquor store was rev.i_ewed by Mark Irmit.er, Miko Rajah and myself. Our recommendation world be to sod all areas (except to the rear) that; aro not currently developed and t;o be dr_velopcd (agenda .item 2) as parking lots. Sod was recommended versus seeding .in that LIM cost of sodding theso areas, approximately $1550, is only about; $500 more than scoding. In .light; of thr. addi.t;ional care necessary far surd and gr0w0l ride it wnnld seem that; the nddit.innnl $500 would be well spent. -3- Additionally, we would recommend that $500 be authorized for planting trees and shrubbery. Initially, the liquor store bid for this item in- cluded a $1000 allowance for landscaping of which $750 was spent. It is intended that the shrubbery would be put in the area by the sign and trees be O� placed on the sides of the liquor store bordering `tl the parking lot. Reasoning for shrubs in the front arca along Highway 25 instead of trees is to main tai PS good visibility from Highway 25. fff POSSIBLE ACTION: Consideration of additional lan - 5 -pppy scaping for the liquor store. NOTE: Of the original $2003000 Revenue Bond for oA 7 the liquor store, $3900 was deducted immediately f r bond discount and liquor store to date cost $185, 00 . ]caving balance of approximately $11,000 .in the construction fund. -miff V Agenda Item 4. Consideration of Park Improvements. Pursuant to the council's request, Mike Rajal,a ai myself have viewed the parks for additional are to be sodded or seeded along with other possible park improvements. Enclosed, ploase find a list of improvements for possible consideration. Budget for 1977 for capital. outlay and improvements is as follows: Sprinkler System $ 7,000 Hillcrest ]'ark 2,000 Mower 500 Unallocated 1 jum $10, 51111 Spent thus far for Mower 250 Balance $Ill 2 ll Obviously the largest, item in the budget is $7,000 for the aprinklrr system. it, would appear that an acceptable method (if' watering the parks would be the purchasing of b00 fret of hose which would cost about $01111 int. ludfng the necessary hydrant adaptors and heads for the system. As a result of this savings of about. $6400 from the budgeted amount, some flexibility m,uld necur 141 al low other park projects to be considered. -4- As an .i-ndi.cati.on of what monies have been spent for park i.mprove:merrts, .listed below aro costs for 1976: Landscaping $ 12,042 Playground areas 5,221 Water Service - 401 St. Park 9S5 Park Road 5,612 Gime NSP Bal.lfield 573 Bandstand 12,540 Other 4334 TOTAL S 41SO In addition to the enclosed .list of i.mprovements totaling $7,745, the boat tand.ing in 1311i.son Park ,is in need of repair and a cost- cstA.mate of $2000 has been received. POSSIBLE ACTION: Coosiderat.iOo of park improvements to be carried out in the summer of 1977. Agenda Item S. Consideration of Landscaping and Parking Got - Maint:enance Building. Pursuant to the cortncil's request, Mike Rnja.la and myself have viewed the Mnintenance Ruil.d.tng Site relative to .landscaping and parking lot improvements. Oter recommendation would be to landscape_ with sed nn area of IO feet towards Golf Course Road Prom the Maintenance; Building and the cnt.i.ro length of the building. Another arca to be sodded might be the area by the, Targe tree that; is s.itunted I:o the south- east of the bn.i..lding. P.ive or six trees nre also p.i.nnned for thr_so areas. It; wnol,d fort -her appear t:hnt the hest; place for a parking lot would he I,tte area just: SOOL11 of the maintenance, ho.1Iei.ing adjacent ter the sod border mentioned in the previous paragraph. It is me- ommended this nren be, Ill. lick t:opped to allow for 10- 12 parking spares. The remainder of the area .is :i.n need of binding noel P.i.tl and it is intended that; the entrances to the maintenance building be 603b up with class S. Addltlnnnl.ly, the low nren nP the lot town -da the northeast would be leveled fart; not: brought to grnde oP rest or tut buolloae of oos1. of fa l l rte ecssavy. "Un arca eoold he ui.tlnurtely headed to level of rest of 01 to over a period oP timm l ill. ennid bo penvLded from futuro sewer and water projeet:s. -5- Cost of total improvement would be approximately $2400. The 1975 Maintenance Building Construction Fund has a surplus of approximately $3900. POSSIBLE ACTION: Consideration of Maintenance Building Parking: Lot and Landscaping Improvements. Agenda Item 6. Review of Strcet Report. With last meetings agenda there was sent to each councilman a copy of a street report prepared by Mike Rajala. This report was prepared pursuant to an earlier r e quest by the council and its pur- pose is to review the existing condition of streets and various methods of upgrading city streets. It should be pointed out that 1977's budget for street repairs and improvements is $15,000 of which approximately $10,000 will probably be necessary for routine patching and maintenance leaving a balance of $5,000. Obviously there Is not sufficient money available in the 1977 budget to initiate much of a street .improvement program. Alternatives to be considered would be to initiate the program in 1978 and levy the street improvement program over a four to five year period. This would require a one mill levy or approximately $40,000 In each of the next five years for example. Some consideration might also be given to having a levy of may two m111m in 197`1 to catch up on the ,street program and .levy one mill. in each of the next two years. Another alternative might be to float a bond and do the entire program in one year. However, a referendum woul d be requlred on and unlcas at ,least, 2(1% Of tilt ppojevt was ass Cased. You ahuuld also note, that. Mikela Street Report, estimates the mist of curb, gtit ter, dorm sewer and a two inch bituminous aurCace to he About, $8,300 per blot k. This wu uld appear to be impractical Cron a coat Standpoint unless a grant was recetvrd or at large ahare of the coat waa aaaemsed. ^o' To illustrate the cost of resurfacing the streets, an example is listed below comparing a bond issue payable in five years versus a levy for five years. Cost of a 2 inch bituminous overlay mat was used as this appears to be the most feasible and acceptable method. Example of this method is 3rd Street which was done in 1972. Cost of Project $185,539 $235,112* Interest on Bonds $ 33,325** Total Cost $218,934 $235,112 Ad Valorem % 80$ 100$ Ad Valorem Share $175,147 $235,112 Assessment % 20% Mill Rate per Year .87 1.16 Ad Valorem portion $30,000 home per year $ 8.72 $11.66 Assessment based on 66ft lot per year $17.86 cComputed on 8% annual inflation factor itxComputed on 6% over 5 years Advantage of the bond program is that the project could be completed within one year and eliminate necessity of bidding each year plus factor of re- cei.v.i.ng a more favorable price on larger project. POSSIBLE•. ACTION: Consideration of etrcet improve- ment, if any, to be considered in 1977. REVERENCES: Street Report, Cost on Scarifying, Article from March 77 issue of American City and County rotative to scarifying method. -7- l ,Sfi%• 4�V� Y�_ e'•.4:'"�,`"`�/`''� •, cam- -`d t_ '''';'� � `�:'�<;, POSSIBLE PARK IMPROVEMENTS WEST FRIDGE PARK *Sod $ 1950 Parking Lot - Class 5 120 Trees 6 ! $45 270 Sub Total $ 2340 EAST FRIDGE PARK Sod ELLISON PARK 65 Blading & Road Improvement $ 100 Tr ccs 5 ® $45 225 Sub Total 325 4711 STREET PARK Sod -infield & outfield $ 2050 Line -base paths 270 Tr ecs 3 • $45 135 Sub Total. 2455 11111CREST PARK P.layground $ 1800 Skating Rink 160 Sub Total 1960 [lose a Adapters 600 TOTAL aL *Sc3,d, where indicated, ineludes necessary black dL•t NORTH - SOUTH STREETS (Excluding Cedar) STREET HEATER SCARIFYING WITH 3/4" M.H.D. COST #2341 WITH BITUMINOUS OVERLAY Chestnut S 1,102.00 Elm (Pine -River) $ 1,102.00 Dayton $ 1,102.00 Palm $ 3.306.00 Hennepin $ 3,306.00 Wright S 3,306.00 New $ 3,306.00 Vine (not dead end) $ 4,407.00 Washington ' S 4,407.00 Ramsey $ 4,407.00 Walnut $ 4,407.00 Maplo 3/4" ($ 6,611.00) (Includes to Apts.) $ 7,976.00 Minnesota $ 51509.00 (To Apts.) Locust $ 51509.00 I.i,nn $ 5.509.00 $SR.S61.00 Elm (River -Tracks) 3,940.00) TOTAL EAST - WEST $ 76,141.00 $ 63,905.00 NORTH - SOUTH 1 18.J61.00 18.561.00 $134,702.00 $122,466.00 Rel EAST — WEST STREETS i STREET HEATER SCARIFYING WITH M.H.D. #2341 COST 3/4"—I" BITUMINOUS OVERLAY Fourth 1" S22,,375-00 3/4" $18,781-00 Fifth 1" $ 5,971.00 (Pine -Maple) 3/4" $ 53012.00 Sixth 1" $ S,055.00 3/4" v $ 6,761.00 River 1" $31,704-00 3/4" $26,612.00 Hart Blvd. 1" $ 6,722.00 3/411 $ 5,637.00 Third 1" $ 1,313-00 Elm - Pinewood School 3/4" $ 1,101.00 Total 1" $76.141-00 3/4" $63.905.00 6�1 EAST - WEST STREETS 2 Inch M.H.D. #2341 Bituminous Overlay $97,826.00 NORTH - SOUTH STREETS 2 Inch M.H.D. #2341 Bituminous Overlay $87.713.00 $185,539.00 Coat of fat Stage Construction of storm water drainage facilities as outlined in the Comprehensive Utilities Plant "Maple Street Facilities" $580,000.00 "4th Street Segment of Chestnut Street Facilitiea" $143.000.00 $723.000.00 a—rlw-a-� --4� SlwAe d� L.� e400" ,c AA. C-.rr -N p 4�t PAR.V- x.1PRp.�re�te.+�s 1C.'tLAZ�q pCorecTS R&a&r PACr 5,x O - Utes a 1"7)JMfA�H ptoa+ �L►(,Nr vE LecCA-o C 1 tom{ E {ipso.. PAIXK Lf �o NTK !.MdgT o t tA•��LEblat 14 i L LC AA S r 124 2A— �'� "� �lJ►V 6 R.oaND ✓ S K.4r �Nb iz►N r .Gnc 4 0 - ,DA4r TREF s NE 1` #00-C APOO )9 y D. Pi /r /J 91 G. L/NK - Mrvr Dco� .9 74& • G c ocols we# xQc& of N4rdI Ja♦ r t M, CITY OF MONTICELLO �S0VV 1 STREET REPORT In 1976 he city of Mo to spen 8,231.09 on street mai Ma airs. Approxim % of this figure nr was for bituminous mix used in patching. Tsents an unusually high dollar amount to be spent on repair operations. The time for decision making regarding investments in the main- tenance and repair of our street system has arrived. It is no longer feasible to invest this amount of money in a rapidly deteriorating system. The bituminous pavement on a majority of our streets suffers from numerous defects. Among these are cracking, potholes, slippage breaks, settlements and raveling of the pavement.. Not only are these unsightly and hazardous, but."ey allow water to infiltrate, compounding the already existing problem. In some instances a rejuvenation program of seal coating is required, whereas in others, total re- surfacing is the most logical, cost effective s*al,u ti on. 1 t is no 1 anger possi bl c to trim the defective point back to sound asphalt, vertically cut the edges and install a permanent patch. The existing mat, is either too brittle or thin. Instead, M -C bituminous mix is overlaid over the entire de- fective area and feathered in to conform with the existing mat edges. This provides only a temporary patch that will require additional repair work one to two years later. In many places within the city, the streets are essentially several layers of patches. An active., effeeti.ve street rehabilitation program is mandatory; one in which repair and maintenance work %ill he performed on a permanent. rather than a tem- porary basis. All streets running east to west, with the etrept.ioli r.f 3rd Street and those att•ceteresurfaced as part of ahcs 75-1 construction program," should be considered for resrirt'aring with a 11 to 2 inch bituminous overlay. These at,reets are all high volume traffic r.ol 1 ector rotates and are; plagued by all the defects preriuusly listed. fourth and Sixth Streets aro extremely brittle ;ntd in many pl arcs the existing asphalt mat is teas elarua inch t.hic k. The atrength of the supporting gravel C, Base appears to Ma adequate but soil boring tests could be conducted before resurfacing begins. Z_ R iver Street is especially prone to sett.] ements and depressions because of the high water table in that area. One possible approach to prevent this type of pavement failure would be to lower the capillary water zone by installing drains below the water table. The capillary water itself cannot be drained but by lowering the zone, water would be removed before it reaches the sub-grade. Consequent]%, Frost heave, the primary cause of depression and settlements would be. practically eliminated. A 2 inch #2341 bituminous overlay will eliminate 95% of the defects and will give the streets a "like-new" appearance. Useful life- }__ r a street resurfaced in this manner si15-20 years. One problem that will occur, however, level of the street surface will raise and wipe out much of the curb in the curbed areas along River Street. Feather edging the surface at the curbcan minimize this problem at curbside, but at the risk of raveling the feathered layer and of producing an excessive crown at the center. Estimated cont for a 360 foot x 32 foot street, providing the base is adequate would be: 160 tons #2341 bituminous mix 0 $1 1.50/ton $1,840. Ilowever, there are two factors that must be con- sidered before any rational decision-making process can necur regarding street resurfacing. They are: 1. At. what point In time will curb/gutter and storm water drainage facilities be constructed, and 2. How extensive wil l this construction be. To Install a 2 inch bituminous overlay without con- st.ruction of curb/gutter and atorm water drainage hail ities precludes the fact that the normal 15-20 year .life m, tnel.anc of such a orogram will he drn'stic- a t ly shortened . 9tan i,ng water caused by the poor uralnage along much of 3rd, 4th and lith Strects will itiN 1 trato along the mat edges and through all access - i we vows. The new mat wit rapidly deteriorate and the load hearing soils will soften. The repotition of traffic loadings, especially along these heavily used col I ertor streets wi 11 then crack and ravel the.. pavement. Also, if the derision to construct curb/ gutter and st.orm water drainage facil sties is made a couple of years following resurfacing, new drainage patterns and gradients will have to be re-established. For all practical proposes, this construction would necessitate c,omptete duplication of the previous year's resurfacing program. An alternative to this problem of duplication of nPPart wn"td be to construct curb/gutter, storm water drainage faci-lities and a 11 to 2 inch bituminous overlay in a single operation. This situation would lend itself to the possibility of recovering part of Lhe costs an an assessment basis. Estimated cost for 360 foot x 32 foot street would be: Type "0" curb/gutter at $3.20 L. F. x 720' = S2304 Storm sewer 0 $13.00 L. F. x 320' 4160 !2341 bituminous mix 0 $11.50/Con1840 (160 tons) a $8304 Our city engineers have indicated that they think it; would be advantageous and most cost effective to the city if a permanent street improvement program ua s initiated. The storm drainage facilities will have to be constructed first or concurrently with the street Mprovemente. They recommend that "the can- sLruc Lion of the Maple Street storm water system as -hown in the Comprehensive Report be given first prinrit:y. The initial cost is higher but may be offscL by nsseasmenLs for curb and gutter, laterat Cost of storm sewer and perhaps the bituminous pave- menL itself, and the balance on ad valorem taxes pending a policy established by the council. The assessments could also be indirectly lowered through I he use of Cenrnty State; Aid Funds on designated County aid sLrre:ts. The: County will reimburse the City for cernst.ruct.ion of bituminous baso and wearing course (npprnaimaLely 70%), curb and gutter (50%) and storm sewers (by contributing Plows) on any C.S.A.H. This would include C.S.A.H.'s 75, 39, 58 and 59. C.S.A.H. ;S is Pourth Street from film to Pine and C.S.A.H. 5') is LncusL From Fourth to Broadway. The benePiLting prnperty atom.ting these C.S.A.I1.'s could stili, he assessed Llre: same benefits as on other residential ,.mutt which would in Lurn tower each individual "ssessmunt herause nP county participation. I Any construction -proposed for C.S.A.H. funding must be proposed to the County for their approval and the money will be budgeted for some future date.', In talking with Larry Koenig, Wright County engineer. at the county's 5 year road plan meeting, he in- dicated that now is a good time for municipal C.S.A.11. funding. $1,200,000 is already in the budget and $200,000 of this amount is earmarked for construction in cities of 5,000 or less. At present, there appears to be a lack of municipal projects on which to expend all these funds. However, there may be one ramification if C.S.A.H. funds are spent now. The city has discussed the possibility of constructing the proposed service road south of I»94 between C.S.A.H. 39 and S.T.H. 25 with C.S.A.H. funds. The proposed road is longer than the city is now allocated for mileage. Irregard- less, Mr. Koenig has indicated that if a definite proposal of construction is submitted to the county the likelihood of this service road being constructed with C.S.A.H. funds is good. However, he also ment.ioned that if money is now spent on C.S.A.H. 58 and 59, they would hesitate to trade off this mileage and it would bu very unlikely that the proposed service_ road would be C.S.A.H. funded. Some serious thought will have to be given to the priorities of this si tuati on. Another possible approach is to reconstruct the existing streets bases to atlow water to enter the sub -base and thus eliminate the need for storm sewers, curb and gutter. Here the recommended base is 12-15 inches of crushed rock topped by 4-5 inches of gap -graded bituminous. This type of construction at lows the moisture content of the soil to rise above its liquid limit. This procedure has been successfut on a few occasions lxtt is not, looked upon with flavor by the professional community because it directly violates the principles of gond load bearing roadways. Also, design suit- abi t i ty for this region of the county is questionable. The materials used in the subgrade must be impervious to maintain adequate subgrade strength. In the winter -4- and spring the pores will freeze, allowing no water passage or drainage. The freezing and thawing action tends to heave the pavement and with frozen road sides there are drainage. problems. Asphalt scarifying is another tool which can bo- eused usedas a complement to a program of total resurfacinr:. This method consists of softening the existing surtax,, r �% with heat and then thoroughly stirring and trmbline � ` tht: mixture to an average depth of 3/4 inch. if restoration of contour is required, the remixed material is processed through an oscillating screed before it. is tacked with an emulsion and overlaid. when r4l u..cd directly before the application of a new overlay, at frr4l If, existing cracks are eliminated and there is a 10th bond between the old surface and the new mat. se uently, if scarifving is used before the anolicat -n 0 a t inch mat, the combination of scarifvin lithe cars of i/1 of ninch and r,• - surfacing will t .li araduce a pliable 3f4 inch surface of navemn„lyy. A combrna ion of hea Ler scarifying and overlay with a to 3/4 inch bituminous mat, is c+pta'ially applicable as a cost-effective resurfacing program when adequate drainage is not, available., C?� 1 The dense. compaction of the well coated aggreRat .� �I�LKS makes it extremely difficult for moisture t.o spre::l icc t I� through portions (f the fiasure between the two lay,o•.s 1 of norfncing. Whereas, in ordinary resurfacing, thee—S; is often dry and bare aggregate existing in the area between wen the two layers our f surface that allows moist,l T' to spread thereby reducing the quality of construction. Sjjjlti' F:st,rmat,t:d cost for recycling an existing 360 fo.,t 32 font, street. by heater at, arlfyIng and oscillating rj�lf scr,:ed and resitrfacing with a I Inch bituminous ovcr- twins l ay woo l d lit.-: tit tons (2341 bituminous mix at $II.SO/t.on $920.01 I2.SO sq. yds. at $.40/ sq. yd. Si_.ttn 14 00 to teems of scheduling, one possible approach Co effectively finance this program would be to implement the resurfacing program on a yearly basis. Possibly all ht.r•ecta that. run east, to west can be done in it I - 2 year period and the north - mouth streets the folh,wina 2 years. 1 would recommend, however, that if a r1—isinn is made to proceed with bi tumi,nous overlay, that +hv unsurfaced sections of Vine, Maple. Minnesota and ith Streets be included. The'sectinn of MAph, hat —1-VeS as an utt ranee tothe kidwrmont Apartments t+•.+.Id be ai.ven top priori ty this year Le at a l p+, :siI, So,,; .hating is tite final asphalt coating pl a, ed To r hi tum.inous surface 1'+,ar preventive mai-ntenan. e ybr1..• -, after correction of any flaws. It is the t.+ -wring, continuous surface that will prevt•nt lie 'ttu'i I tration of water into the base and keep the .trl�ala. pliable. `The most popular type now used is INick asphalt mixed wi.th 30 ; napt,ha anti appl tasd '+t a fate or 3/10 gallon per ,square yard. Saptha is p! + t ef-d over an emulsion or gasoline type distil Late nl. �A' ur Sr mix because of its improved curing and +4.t'teniara qualities. This hot -liquid surface ;is i,,%. -ted with a fine layer of buck shot sized rock and itI l ­ued t o seal, for 3-,S weeks before final sweep up. Inder normal conditions, seal coating should be ;reel ied every 4-5 years. fn Monti,cetln_ Th3.et „A �.r:S1.rc . nt'It•yr Road should bn sen t,ntr;l( �htc Additional t 4 , Me two city owned parking lots behind Johnson Dept. Store and the city hall area will need to be scaled this year to maintain their present conditlon. Thr third lot behind Fullertonts, which was seal coa,tgd in 1915, could simply be crack sealed with a resat hely inexpensive tat, sealer. seal coating any streets other than these would be an exercise In futility. They are beyond the point of .being .in a maintenance manageable condition and any type of preventive main- tenance would have a very low cost to lift, ratio, Seal coatina -drwa not c•j imina .t do uriensionns. eyomes or corrugationsnor will it, jtrnYid4- nm• lnnv corm U •11 .'I ILW +" - n ui'r;.p ,-rim n 1111i ,. .4,._ korhoval.ed .- y.•rhovat.ed b.ituminouA aaurPaeo. A street where the marl clF i laws have not been c;uOrected wi l l be ref l et t ed baC k up, through the new seal coated surface. To rrprnt, seal coat>ing should be regarded as a maiuteoanrc- tool and used In such situations where rejuvenation is desired. Bst-imated cost .for -seal -coating a 360 foot. x 32 font street would be; 12 0 sq. yds. @ 15-46 sq. yd. = $ j1 S2-.01) Third Street 22,044 sq. yds. 0 $.40 - S8,817.00 Cedar Street 5,659 sq. yds. 0 $.40 - $2,275.00 NiliLop Drive 4,267 sq. yds. 0 $.40 = $1,.707.00 Parking Lot A - Behind Johnson's Dept Store 46,333 sq. yds. ® $.40 - $1,•S533.32 Parking Lot B - Behind City Nail & Bowling Alley 21766.75 sq. yds. 0 $.40 - $1,1o6.t,7 The remaining unsurfaced streets within the cities' boundaries will continue to require yearly upgrading aith additional gravel and blading. In those areas whero dust may bea problem, a dust coat is applied in early spring. Where development is minimal no problems are anticipated and until sufficient dcvel,up- mens in these arras does occur, no resurfacing should. be considered. Make new streets out of old Recycling, heater -scarification and thin overlays get more use as low-cost routes to stronger roads Now wast cotlatNtaen used ata in of racy. eject &spew lot tuecepm roadway "To meal the publlo'e demand for good made at reasonable Dost, Ma- plewood, Minn , refused to throw away sound subbase materials when upgrad. ing an existing &treat. Instead, old aggregates we re used to make the now pavement and saved the out of using all -now materials. In the recycling proass only the old crushed gravel hose was run through the hot -mix asphalt plant dryer. The gravel was heated to a higher than normal temperature for a hot -mix op. eration (00F). The crushed old pave• ment surface was then added to the heated aggregate in the pugmill. This eliminated contact between the dryer flame end the old pavement mix which included flammable asphalt, "Extra" heat added to the reclaimed gravel aggregate softened the pave, m,mt mix so that only throe percent new liquid asphalt needed to be added topproduce the deslrod final mix, 7Tern was only one modification of rmndard hot•mis production and placement prxcticemiedad In the whole m Wing process. A halt conveyor had to he installed to transport the old uushed surface pavement from sues kpde to a chute where it was fed mtoslhe weight bucket, no reclaimed graxal base was fed into the mill through the normal cold feed bin opera 11011, The ratio of ham material to surface material was about I I The material was mixed dry for about 20 sec The new asphalt wag then added \fixing nmtiniud6renother80w Thebauh nl now aur rag then loaded into true ks for drinery to i hapb i tte At the dull oily, the rerycled rmx was put down with comsntional equip, ment. The new street used about 18.2110 tons of recycled mix with an av erage thicknean of 8.6 in. A %.i n, wear - Ing surface capped the recycled base. Conway Ave. Is approximately one - mi long. The street serves a mix- lureof light industrial and residential traffic. As originally constructed, it consisted of five -in. of hot.mix on top of INio. of crushed gravel bar. Tho five•inehes of old road pavement was picked up and trucked back to the plant There it was crushed and stockpiled, The 10 -in. untreated crushed grave 1 base was also picked up, taken Meek to the plant and stockpiled. A bulldozer with a ripping tooth was used to break up the old pavement fur trucking to the asphalt plant. Ono problem with some similar as- phalt pavement recycling efforts has been excessive smoke. Smoking can occur when the old pavement is run through the mill in contact with the dr3rr8ame Often the emissions exceed local Rmblent air quality standards "In addition to eliminating any air pollution pmbleme, the method used by Maplewood also has other advantage,%," noted Ray Ilate, Maplewood'e Superin• tendent of Public Works, "First, we re- claim and reuse all of the old street material. Second, wa reuse aggregate that may Ial in short supply in Rome parts of the country Third, we only need shout three percent new asphalt manad was h the four to six percent needed for normal new hie mit "The methcid has M•nefits rrgardmg the envamnmcnt, ctinwr%ation, puhllc relations and rcannmics Also, the pro, eeaa tan successfully compete with con, %rational new mix," Il its 4iatm9 Nesler.eoariftestlon, The intruming 11 ��' fttl� �"IJ � �".Ty 111" � �•'� al L Payna Co at- plane can root collective trans 01 wax m 1c1hl airing Curbs ua.- til heufrr srnrdLaunn Indir:at rs that than nieth,d of raudrny rehnhibtu• Uon run also ofler definite advantages ate, con,entiunnl a•gdwh o-Oatr Their• un lude is Censer—tam of m:denulx hrusing the scari0e,l portion of the coaling patemenl lit form the new surface s -lowing of the build up of in -et crowna and gutteni by allowing the use of thin o erlays or vhnanating o%cilots completely e Het,aulrution of the evrrnnit nnplialt by hooting. onitening and drawing the bitumen to the rurlurr of lite pa". merit Is Mien ng coats, of run, ent art muintemnce bt r,•ditrI na oterlay th,cknens The heater n-riRing prvsraa can he CMI cold planer can profile large pavement areas hismA lg usable riding surface used in til Ieasl two different way's Amarillo. Trans, uses a method that seems us work succeasfLlly nn their sreete The Als•cutl healer•ecsrify utg equipment burrows a AWn. layer of material from the existing pavement A rejuvenating agent is then apnt, npphrd lit the ecnnfled surface. To old in reducing the build-up of paling material of gotten, it one it derp alnp of old pavement to cut and removed from the arra along the curb A one -in thick overiny urconventional asphalt rrtncrete surface material fit then placed The city feats that this helpa to reduce reflective cracking and gi%en it amexgher wruring surface The penetruting agent lRerlirl as designed to act nn a bander, but it also Is•netrefen the old pavement to restore pinnticaly and ductility and helps it n. Inn more of it Iuitemenl's useful qual• aur•- Melvin tihi, City Engineer f r Amarillo, (eels that improved final ri, nultn are obtained by using a 501 aolu tsar ofthe material sprayed at the rate of 0 Ill 0 20 gal per sit yd Cold planing. Oklahoma City found out about cold planing when a Kral contractor usel Il(• ntrthod to namove one in of uaphah on a four -lone, t''j•mi long alrrrt A li:,m asphalt overlut' was to hu, plared after the old surface Heater-scumtlor creaks up pd,emenl to a. In depth wth workable material comp graded to most recruited profile. had he -n -.,rd .,nd cleaned As the asphalt was removed by the planer's carhidc,toothed cutting drum. the machine picked it up and deposiud it in a dump truck trailing behind- The CMI Profiler "didn't even miwe any dust.- according to one field engineer. In on Oklahoma City project for the suite highway department., up to 10,000 aq yd per day of deteriorated concrete pavement was removed from an elevated section of Interstate 40 Cutting down to 'i -in. deep, the 45.000 eq yd Contract was completed in just a few days. The state's resident engineer. B. J. Mead, reported that "not only did the machine do thejob faster, but it did not fracture the nggregate as much ties other methods) and left a cleaner tex- foro. It provided an excellent bonding texture for the new overlay." Thin overlays. The Los Angeles County Rood Department materiels engineers and the Asphalt Institute researchers believe thin overlays of V-1" asphalt concrete are adequate for most rein r. facing jobs. These thin overlays must be protected from horizontal strneavit at joints and cracks in the underlying material, however. Rood surface overlays tend to crack along faults in the underlying road foundation. Cracks seen in the original pavement Boon reappear in the new surface, as now material in contact with the old surface sullen the same stresses that caused the original crack When then, stn•eses exceed the elastic• Ly of the new material• the underlying cracks surface To reduce reflect-, cracking• underlying stresses in fit,- crack hecrack area must Ir• doaributetl titer a rider area Breaking the conflict tend bvtt,en the new overlay and the et otting mute nal h,lln this dislrahutmn Tests rah limestone filter, annd, nhuminum fnl, retailing felt and I'artinnd cement dust show that lh,v are all effective bond hrankers Stronger asphalt overlays from three to four in thick can also he used to pre• tent cracke for about 10 yr While of Waite, this method as tory eslienn-e Abut, merlaid slre,u tend foliate high crowns and Ins- elormwaler crrying capacity after only one such reaurfac mg According to IL,b,rt Spencer. public corks director of Hurbmk, Valit , the projected nisi of a pmissu•d three in nsphall otrriny prompted cin , n diners to intrxtigate methods lar pre tenting reflection ranks from ti o ing new cork Orikinal phmo called for 42 1•41 AMERICAN C,n A COUNIv Margin 1977 v Routed matenal le ramoved from M rHh loader, by nand and with high pressure as pt. 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