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CR 97-49 Consider Changes to Legislative Police 8-B Roadway Improvements \ "I Y 0 March 14, 1997 ~ 1- " o P K \ "'" Council Report 97-49 Consider Changes to Legislative Policy #8-B Roadway Improvements Proposed Action. Staff recommends adoption of the following motion: Move that Council avprove revisions to Le!rislative Policy #8-B. Roadway Imvroyements as outlined and {lresented by staff. Overview. In September, 1996 City Council directed staff to review existing street reconstruction policy and discuss options at a future worksession. At the February 11, 1997 Council Worksession, staff presented a report including analysis of benefits/costs of concrete curb and gutter, past neighborhood street reconstruction projects under the current policy, policy options and a staff recommendation. Staff recommended that the existing policy be modified to require concrete curb & gutter on all street reconstruction but that there be neighborhood input regarding the design and appearance of the curbing. However, a large majority of Interlachen neighborhood residents were opposed to any type of pavement edge treatment. City Council directed staff to propose a policy revision which would allow, in some instances, street reconstruction without requiring an obtrusive raised asphalt edge or concrete curb & gutter. Primary Issues to Consider. . What streets will still require concrete curb & gutter? . Are there cost implications for residents if the abutting street IS reconstructed without curb & gutter? Supporting Information. . Analysis ofIssues · i"'d ~ Leg;slative Policy #8-B "f . \_ Steven 1. Stadler, Public Works Director Council Report 97-49 Page 2 Analysis of Issues . What Streets will still require concrete curb & gutter? Staff proposes that the following streets require concrete curb & gutter when reconstructed: . All streets with existing concrete curb & gutter . All Municipal State Aid streets . Local streets without curbs in a defined residential area where the predominance of existing streets have concrete curb and gutter . Local streets when the neighborhood doesn't present a petition of 55% or more of the affected residents against concrete curb & gutter . Are there cost implications for residents if the abutting street is reconstructed without curb & gutter? Yes, staff is proposing that alternative construction used to maintain pavement edge strength and drainage be direct assessed at 100% to abutting property owners. Staff believes that the use of concrete curb & gutter is the most cost-effective means of controlling street drainage, protecting pavement edge strength, and ensuring maximum serviceable street life. If curb & gutter is not used, alternative engineering solutions will be used to address these issues. These alternatives will follow sound engineering practice based on soil investigation and strength reports and local drainage issues. It is expected that the following alternatives would be considered when designing street reconstruction without curb & gutter: . subsurface 4" perforated pipe drain along the pavement edges - estimated cost is $5 - $8 per foot . additional excavation and base course material at the pavement edges - estimated cost is $2 - $3 per foot . additional stonn water inlets and piping - estimated cost is variable depending on local drainage concerns These alternatives and costs would be investigated during the feasibility study phase of the project. Any additional direct assessment costs would be presented to the affected residents during the public infonnation meeting. LEGISLATIVE POLlCY #8-B ROADWAY IMPROVEMENTS SECTION 7 - SECTION 8 MAJOR STREETS 7.01 Major streets are considered by the City of Hopkins to be collector and thoroughfare streets. Streets of this variety generally service local traffic as well as traffic from other areas and therefore are designed in accordance with standards of a higher road capacity. Major streets within the City of Hopkins are constructed with a minimum capacity of 9 ton per axle. The primary source of funding for major roadways is special assessments and MSA funds. 7.02 Major new and reconstructed streets shall be constructed with curb and gutter. Street width shall be determined by existing conditions, traffic counts and patterns, and, if applicable, MSA standards. 8. LOCAL STREETS 8.01 Local Streets are generally streets which service a small area and do not typically involve a movement of traffic between areas. Local streets typically connect two collector streets or county roads. Streets of this type include local streets, cul-de-sacs, and service roads. Local streets within the City of Hopkins are constructed with a minimum capacity of 7 tons per axle. The primary source of funding oflocal streets is special assessments. 8.02 New local streets shall be constructed with curb and gutter. WheR reeefl5t.-aeilil.g streets eener-ete OOfB ana gutter shall Be installed 'Nhere earrently in lise, and in other areas l:lIIIess the Beighberheed preseHts a petitieB ef net less that filly five pereeat (55%) efthe atfeeted preperty e'_ers r~Elllesting raisedllSphalt edge. RiHsed asphalt edge shell. be iftstaIled where ,.er eeaerete OOfB ana gutter is net llsed. De. meEiifieatiefls sIui1l Be estaIllislie6llS appr-efJriate te adElress dfllinage ana maiflteHlUWe eeneems. When reconstructing streets concrete curh and gutter shall be installed in the fonowing instances: 1. All streets with existing concrete curb and gutter 2. All Municipal State Aid streets 3. Local streets without curb and gutter in a defined residential area where the predominance of existing streets have concrete curb and gutter 4. Other local streets without curb and gutter unless the neighborhood presents a petition of 55% or more of the affected residents against concrete curb and gutter. Whenever concrete curb and gutter is not installed, alternative construction techniques or additional work necessary to maintain pavement edge strength and drainage shall be direct assessed at 100% of costs to the abutting property owners. 8.03 New local street minimum unobstructed street width, (face-face of curb) is 30 feet. The standard unobstructed street width for reconstructed streets shall be 26 feet. Streets which do not meet this requirement shall be reconstructed at current width (unless a wider street is desired by the affected residents) but not less than twenty feet (20') unless the Council finds that: A twenty foot (20') width would adversely affect trees or other significant or desirable physical features; and A reduced width would not constitute a distinct hazard to life or property. Factors to be considered shall include, but not be limited to safe access of emergency vehicles, snow storage requirements, availability of parking and aesthetics. 8.04 Streets which are twenty-six feet (26') or more in width will have parking allowed on both sides. Streets less than twenty-six feet (26') in width may be subject to parking restrictions on an "as needed" basis. Parking restrictions could be established at the time of street projects or at any future date based upon general City parking requirements. Factors to be considered shall include, but not be limited to, staff report regarding safety and emergency vehicles access and neighborhood input. Where streets are less than twenty-six feet (26') in width, the staff shall assist the neighborhood in identifying areas where existing street width can be increased to provide additional parking.