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HomeMy WebLinkAboutLID 50 Council Presentationz LID Street Reconstruction z ISSUES Cost to residents Cost to City (Street Funds) Sidewalk compliance Curb not up to specs City right of way is narrow Poor drainage Parking z FEDERAL ADA REQUIREMENTS A “path of travel” includes a continuous, unobstructed way of pedestrian passage by means of which the altered area may be approached, entered, and exited, and which connects the altered area with an exterior approach (including sidewalks, streets, and parking areas), an entrance to the facility, and other parts of the facility. The ADA requires every path of travel in or around a facility, including streets, sidewalks, and curb ramps, to be accessible. Still applicable in 2019, the standards apply to state and local government facilities, commercial establishments, and public accommodations. Any building or project started on or after March 15, 2012 is required to use the 2010 Standards. z FEDERAL ADA REQUIREMENTS The minimum continuous and unobstructed clear width of a pedestrian access route shall be 4.0 ft (1.2 m), exclusive of the width of the curb. There are exceptions:sidewalk width may be reduced to meet site constraints; however,ADA requires a minimum width of 4 ft. to be provided in all cases (PROWAG R301. 3.1). If sidewalks are less than 60 inches (5 feet) wide, passing spaces must be constructed every 200 feet. These passing spaces (which could be a driveway or wider section of concrete) need to be at least 60 inches on all sides. An ADA sidewalk ramp cannot have a cross slope (distance from the bottom edge of a level to the surface) of more than ½ inch. Where feasible an ADA sidewalk cannot have slope steeper than 1:12, meaning for every inch of height change, there are at least 12 inches of route run. z If reconstruction is completed on any existing, street, gutter, curb, or sidewalk then they are required to be finished meeting ADA regulations. 35.151 New construction and alterations. (b) Alteration. Each facility or part of a facility altered by, on behalf of, or for the use of a public entity in a manner that affects or could affect the usability of the facility or part of the facility shall, to the maximum extent feasible, be altered in such manner that the altered portion of the facility is readily accessible to and usable by individuals with disabilities, if the alteration was commenced after January 26, 1992. Since alterations under the ADA are required to meet new construction criteria to the maximum extent feasible, extensive reconstruction work can and should approach the accessibility required of new construction. For example, a project that calls for the removal of pavement and sidewalks to subgrade, followed by the installation of new walks and pavement, is an alteration whose broad scope offers significant opportunity to incorporate the full range of accessible features. On the other hand, the installation of a single curb ramp at an existing intersection is an alteration with limited scope for correcting adjacent inaccessible conditions. FEDERAL ADA REQUIREMENTS z PROJECT STREETS PARK STREET –(from 5th W to Seagull) CHAD DRIVE ANGELA DRIVE MARIANNE DRIVE –(north end to the ball diamond) MELANIE DRIVE 1ST EAST –(between 1st N and 2nd N) 7th N –2nd E to 9th E 5 Year CIP Plan Narrowing Projects (Park Street) z LID 50 z Park Street Partial Removal w/Drainage z Future LID Alternatives Park Street Scenarios z ALTERNATIVE #1 Complete Gut -Homeowner Pays homeowner total $177,564.00 PROS city rebate $47,789.00 •can fix drainage/design grand total $225,353.00 •machine curb –less time w/better results •geotextile under curb for better foundation weight distribution •easier construction w/less warrant/conflict over damaged curbs •lower cost for curb CONS •homeowner bears burden for fixing drainage •homeowner pays to replace “good” concrete •emotional charged response from residents z ALTERNATIVE #2 Complete Gut -Homeowner Pays for Non-Compliant -City Covers Remaining homeowner total $150,207.00 PROS city rebate $47,789.00 •machine curb –less time w/better results increase city total $27,357.00 •geotextile under curb for better foundation weight distribution grand total $225,353.00 •easier construction w/less warrant/conflict over damaged curbs total city cost $75,146.00 •able to improve drainage elevations CONS •higher cost to the City •City participation is not equal between all parcel owners z ALTERNATIVE #3 Complete Gut -City Curb -Homeowner Sidewalk homeowner total $136,136.00 PROS total city cost $89,217.00 •machine curb –less time w/better results grand total $225,353.00 •geotextile under curb for better foundation weight distribution •easier construction w/less warrant/conflict over damaged curbs •able to improve drainage elevations •only ADA corners need City oversite •the City no long has participation in sidewalk, curb, & gutter CONS •sidewalk against back of curb will need to be removed for construction •higher cost to the City •longer duration between roadway construction z ALTERNATIVE #4 Partial Removal (Current Standard) homeowner total $159,872.25 PROS City rebate $38,123.75 •homeowner is only charged for current condition of curb & sidewalk grand total $197,996.00 CONS •drainage stays the same •unable to construct road subgrade and geotextile fabric to spec •more warranty/damaged concrete costs absorbed in the contract –more isolated pieces of curb •residents complaints –“why do it at all if it isn’t fixing the problem?” •slower construction times –curb is critical path item z ALTERNATIVE #5 City Curb & Homeowner Sidewalk -Narrow Roadway to fit ROW homeowner total $30,940.00 PROS total city cost $89,217.00 •machine curb –less time w/better results grand total $120,157.00 •geotextile under curb for better foundation weight distribution •easier construction w/less warrant/conflict over damaged curbs •able to improve drainage elevations •only ADA corners need City oversite •less cost to the Homeowner •no more mailboxes on sidewalk and creates snow storage •sidewalk against back of curb will need to be removed for construction CONS •narrower roadway with less parking •higher cost to the City •longer duration between roadway reconstruction •approach/driveway issues •sidewalks will continue to deteriorate and be out of compliance •ONLY works if sidewalk is against R.O.W. –if not, same cost as option 3 z ENGINEER’S RECOMMENDATIONS Alternative #2 with Road Narrowing PROS •machine curb –less time w/better results •geotextile under curb for better foundation weight distribution •easier construction w/less warrant/conflict over damaged curbs •able to improve drainage elevations •snow storage •mailbox out of sidewalk •less asphalt maintenance z Road Narrowing Cost Savings Road Narrowing Cost Savings Park Street between Seagull and 5th West Road Length (ft)1300 Reduced Width (ft)7 Existing width of asphalt 32', proposed 25' Reduced Area of Road (sf)9100 Granular Borrow Depth (in, ft)12 1 3/4" Crushed Aggregate Depth (in, ft)3.5 0.292 Asphalt Depth (in, ft)2.5 0.208 Total Road Depth (in, ft)18 1.5 Asphalt Road Construction and Maintenance Savings Item Description Unit Bid Quantity Unit Bid Price Bid Amount Excavation/Asphalt Removal CY 505.56 $ 10.00 $ 5,055.56 Geo Textile Fabric SY 1011.11 $ 1.50 $ 1,516.67 12" Granular Borrow CY 337.04 $ 25.00 $ 8,425.93 3.5" of 3/4" Minus Crushed Aggr. Base CY 98.30 $ 40.00 $ 3,932.10 2.5" Asphalt Surface Course Plant Mix (145 pcf)TON 137.45 $ 85.00 $ 11,683.07 CRABS (1) Reconstruction SY 1011.11 $ 7.00 $ 7,077.78 CRABS (1) New Asphalt TON 137.45 $ 85.00 $ 11,683.07 Slurry Seal (1)SY 1011.11 $ 1.70 $ 1,718.89 Slurry Seal (2)SY 1011.11 $ 1.70 $ 1,718.89 Crack Sealing LS 1.00 $ 1,000.00 $ 1,000.00 Total Savings over 40 Year Lifespan $ 53,900.00 Financial Assistance Updates z Additional Information STATUS OF STREETS Park Street z STATUS OF STREETS Chad & Angela z Non-Compliance Stipulations Engineers inspect each parcel of property within a designated LID boundary using the following replacement criteria: SIDEWALK •Vertical Displacement •More than 1/2 inch •1 1/2 inch or greater between the sidewalk and back of curbing •Spalling or surface damage •50% spalled to a depth of 1/4 inch per 5' section •Missing pieces of sidewalk (3" x 3") •Cracks or Fissures •10' or more of cracking per section •1/2 inch wide for 3' crack •Voids under the sidewalk •Depressions •Safety hazards •No existing sidewalk CURB & GUTTER •Vertical displacement •More than 1/2 inch •Spalling or surface damage •50% spalled to a 1/4 inch depth per 10' section •3 cracks across per 10' section •Greater than 1/2 inch cracks across section •Depressions or high spots that impede water flow •Back broken off driveway •Safety Hazard •Missing Sections