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HomeMy WebLinkAbout20020583.tiff RESOLUTION RE: APPROVE INSTALLATION OF TRAFFIC CONTROL DEVICES TO REDUCE SPEED LIMITS ON WELD COUNTY ROAD 1 BETWEEN STATE HIGHWAY 56 AND STATE HIGHWAY 60 WHEREAS, the Board of County Commissioners of Weld County, Colorado, pursuant to Colorado statute and the Weld County Home Rule Charter, is vested with the authority of administering the affairs of Weld County, Colorado, and WHEREAS, the Weld County Department of Public Works has recommended to the Board that "Speed Limit 40 MPH" signs be installed on Weld County Road 1 between State Highway 56 and Weld County Road 46, to ensure safety to the traveling public, and WHEREAS, the Weld County Department of Public Works has recommended to the Board that "Speed Limit 40 MPH" signs be installed on Weld County Road 1 between Weld County Roads 46 and 48, to ensure safety to the traveling public, and WHEREAS, the Weld County Department of Public Works has recommended to the Board that "Speed Limit 35 MPH" signs be installed on Weld County Road 1 between Weld County Road 48 and State Highway 60, to ensure safety to the traveling public, and WHEREAS, the Board has determined that said traffic control devices are necessary for the protection of the general public. NOW, THEREFORE, BE IT RESOLVED by the Board of County Commissioners of Weld County, Colorado, that the Department of Public Works be, and hereby is, directed to install "Speed Limit 40 MPH" signs on Weld County Road 1 between State Highway 56 and Weld County Road 46 and between Weld County Roads 46 and 48, for the safety of the general public, and said signs shall conform to the State Manual of Uniform Traffic Control Devices. BE IT FURTHER RESOLVED by the Board of County Commissioners of Weld County, Colorado, that the Department of Public Works be, and hereby is, directed to install "Speed Limit 35 MPH" signs on Weld County Road 1 between Weld County Road 48 and State Highway 60, for the safety of the general public, and said signs shall conform to the State Manual of Uniform Traffic Control Devices. 2002-0583 L'C ,e)4O, C' ? ,S, C'z� EG0045 RE: INSTALL TRAFFIC SIGNS - WELD COUNTY ROAD 1 PAGE 2 The above and foregoing Resolution was, on motion duly made and seconded, adopted by the following vote on the 11th day of March, A.D., 2002. BOARD OF COUNTY COMMISSIONERS WELD COUNTY 90LORO ATTEST: iat, ► g Gle aad, Chair Weld County Clerk to =6, • Q" :.j 4/ David E. Long, ro-Tem BY: Deputy Clerk to the Bo EXCUSED M. J. Geile APPROVED AS RM: �l w iiam� H. Jerke ty Attorney M" ri Robert D. Masden Date of signature: /oat 2002-0583 EG0045 .7;"" MEMORANDUM TO: Clerk to the Board DATE: March 7, 2002 FROM: Frank B. Hempen, Jr. PC Director of Public Works/County Engineer • COLORADO SUBJECT: Agenda Item Please place the following item on the Board's next agenda: Reduction of speed limit on WCR 1 from St. Highway 56 to St. Highway 60 The appropriate documentation is attached. Enclosures pc: Marc Street, Maintenance-Support Supervisor WCR 1 file I M:\WPFILES\Francie\AGENDA.IRC 2002-0583 r ` LARIMER ENGINEERING DEPARTMENT COUNTY Post Office Box 1190 Fort Collins, Colorado 80522-1190 (970)498-5700 COMMITTED TO EXCELLENCE FAX (970)498-7986 SPEED ZONE SURVEY: LARIMER COUNTY ROAD 904 (WELD COUNTY ROAD I) DATE: MARCH 7, 2002 AUTHOR: CHRISTOPHER SAFFORD AND BILL GLEIFORST I. Location County Road Number: Larimer County Road 904 (CR 904) Starting and Ending Locations: From SH 56 to CR 10(WCR 46) By Milepoints: Milepoints 3.000 to 4.018 II. General Remarks This speed study was initiated by request of residents in both Weld and Larimer Counties. III. Prevailing Vehicle Speeds Radar Check—Not Taken Jamar Classifiers— Location of Data Collection: County Road 904, approximately 0.5 mile north of SH 56 Dates of Data Collection: Monday,January 7, 2002 to Wednesday, January 9, 2002 Conditions During Data Collection: Dry& Sunny, approximately 40 °F 85th Percentile Speeds for Vehicles in: (1) Northbound -* 54 mph (2) Southbound —> 52 mph (3) Overall —> 53 mph Limits of Pace(10 mph range) for Vehicles in: (1) Northbound —>41 — 50 mph (2) Southbound —>41 — 50 mph (3) Overall -*41 — 50 mph c:A windows V temp Acr904speedsmdy(1).doc • IV. Physical Features Design or Existing Speed Limit: The design speed limit for this open county road is unknown. Currently the speed limit for this stretch of CR 904 is not posted, therefore the statutory speed limits for the state of Colorado apply. The statutory speed limit for open county roads is 55 miles per hour. Measurable Physical Features: This road segment is 1.018 miles in length, and contains 14 residential accesses, 5 farm accesses,no business accesses, 2 accesses to the Berthoud Cemetery, no private or subdivision road intersections, and two intersections at each end of the section. The two intersecting roads along this stretch of CR 904 are SH 56 at milepoint 3.000, and CR 10 (WCR 46) at milepoint 4.018. Roadway Surface and Characteristics: This 1.020-mile section of road exhibits a bituminous chip-seal surface and averages approximately 22 feet in width. The surface was in fair condition at the time of testing with some minor bumps and dips. The shoulders are gravel, average 1 to 2 feet in width and vary in position existing either on- level or on-grade. Vertical Alignment Information: There are no vertical curves along this stretch Horizontal Alignment Information: CURVE MILE POSTED ADVISORY SAFE SPEED(M.P.H.) NUMBER POINT SPEED (M.P.H.) SIGNS Northbound Southbound 1 3.3 N/A(55 mph) None 45 45 2 3.4 N/A(55 mph) None 45 45 3 3.7 N/A(55 mph) None 35 40 4 3.8 N/A(55 mph) None 40 35 V. Test Run Information Test runs were performed in both directions using a two-wheel drive, full-sized, pickup truck and a Dodge Stratus passenger car. The average test run speed was 45 mph with runs ranging from 35 mph to 55 mph at 5 mile per hour increments. It should be noted that speeds less than 40 mph were excessively restrictive and difficult to maintain. This section of County Road 904 was traversed comfortably at 45 miles per hour. No handling problems were experienced at this speed. Speeds in excess of 45 miles per hour, however,produced the following difficulties: 1. Vehicles from the dairy farm at the southern end of the stretch usually drag mud and dirt onto the roadway causing the roadway to be slick is some places. 2. At speeds of 50 miles per hour or greater,traffic entering the roadway from residential driveways and intersecting roads could cause problems. 3. The horizontal curves near the middle of the section should be advised at 35 mph. Minor handling difficulties, including wheel bounce, were experienced at speeds in excess of 50 mph throughout portions of the stretch due to surface irregularities. c:\windows\tempkr904speedstudy(1).doc Page 2 of4 VI. Accident Experience Data contained in the Larimer County accident file shows the occurrence of six accidents on this stretch of CR 904 between 1/1/1996 and 11/30/2001. One of these accidents resulted in injury. A brief description of each accident follows: 1. Milepoint 3.00,Property Damage Only, 2/9/1996: Vehicle 1 was eastbound on State Highway 56 and rear-ended Vehicle 2, which was stopped at the intersection with CR 904 to make a left turn on to CR 904. 2. Milepoint 3.32, Property Damage Only, 11/30/1997: Vehicle 1 was northbound on CR 904 and ran off the left side of the road. 3. Milepoint 3.30, Injury, 10/9/1999: Vehicle 1 was northbound on CR 904 and ran off the left side of the road. 4. Milepoint 3.00, Property Damage Only, 4/16/2000: Vehicle 1 was northbound on CR 904 and vehicle 2 was westbound on State Highway 56. Vehicle 1 did not yield at the stop sign and pulled out in front of Vehicle 2. 5. Milepoint 3.00,Property Damage Only, 5/21/2000: Vehicle 1 was eastbound on State Highway 56 and attempted a left turn. Vehicle 1 skidded through the intersection with CR 904 and off the northeast corner of the intersection. 6. Milepoint 3.28,Property Damage Only, 7/15/2000: Vehiclel was southbound on CR 904, went off the right side of the road, and struck a metal and cement dam for irrigation with its front. VII. Traffic Characteristics and Control Average Daily Traffic Information: CR 904 North of SH 56 605 600 1998/21 CR 904 North of SH 56 575 600 2000/30 CR 904 South of CR 10 (WCR 46) 419 400 1998/21 CR 904 South of CR 10 (WCR 46) 477 475 2000/30 CR 904 @ Milepoint 3.5 *** 364 365 2002/02 *** This count was taken by a Jamar Classifier •Functional Classification: This section of Larimer County Road 904 is classified as a Minor Collector Turning Movements and Control: Turning motions along this section of CR 904 are primarily ingress and egress motions involving field and residential accesses. There is heavier turning traffic at the south end with the dairy operation involving trucks and farm vehicles and traffic turning to and from the Berthoud Cemetery. c:AwindowsV temp Acr904speedsmdy(1).doc Page 3 of4 - ' Parking and Loading Vehicles: No parking or loading vehicles were observed during the duration of this study. However,occasional use of the roadway by these types of vehicles, especially near the dairy, is assumed to exist. Commercial Vehicles: A few commercial vehicles were observed and occasional use of CR 904 by farm equipment was also noted. The majority of the traffic appeared to be local in nature, and was primarily limited to passenger cars and pickup trucks. Vehicle Conflicts With Pedestrians,Bicyclists, Animals,etc.: Minimal conflict with pedestrians and bicyclists is expected to exist given the composition of the roadside density that occurs along this section of CR 904. There could be some pedestrian conflict from uses associated with the cemetery. Pedestrians from the residences along the roadway may occasionally use this stretch of CR 904 for commuting or recreational purposes. Domestic animals may occasionally drift away from residences and enter the roadway from time to time. Traffic Signal or Traffic Control Device Information: SIGN MILEPOINT DIRECTION CONTROLLED Stop 3.012 Southbound Stop Ahead Symbolic 3.881 Northbound Stop 3.998 Northbound Note: Guide Signs and Object Markers not included in table VIII. Comments Test drives indicate that the majority of this road can be driven at speeds up to 45 MPH comfortably and safely. The 85th percentile speeds obtained from the traffic counters are in excess of 50 MPH. However, there are potential for conflicts with farm equipment, trucks and pedestrians near the south end of this roadway near the dairy operation and the cemetery. There is a lot of dirt tracked onto the roadway from the dairy operation and cemetery. The dirt can make this portion of the road slick when it is wet and covers up the centerline pavement markings. The road surface throughout the section has an average width of 22 feet, which is somewhat narrow at higher speeds. There are also horizontal curves located near the middle of the section that have safe advisory speeds of 35 and 40 MPH. Due to these factors a speed limit of 40 MPH should be considered. IX. Recommendations It is recommended that CR 904 from SH 56 to CR 10 (WCR 46) be posted with a speed limit of 40 mph. It is also recommended that the reverse curve located near milepoint 3.7 be posted with reverse curve warning signs with 35 MPH advisory speed plates. Approved By: X Date: Mark Peterson, Larimer County Engineer c:\windows\temp\cr904speedstudy(I).doc Page 4 of 4 . • • LARIMER ENGINEERING DEPARTMENT COUNTY Post Office Box 1190 Fort Collins, Colorado 80522-1190 (970)498-5700 COMMITTED TO EXCELLENCE FAX(970)498-7986 SPEED ZONE SURVEY: LARIMER COUNTY ROAD CR 904 (WELD COUNTY ROAD 1) DATE: MARCH 7, 2002 AUTHOR: CHRISTOPHER M. SAFFORD I. Location County Road Number: Larimer County Road 904 (CR 904) Starting and Ending Locations: From CR 10 (WCR t6) to CR 12 (WCR 48) By Milepoints: Milepoints 4.018 to 5.026 II. General Remarks This speed study was initiated by request of residents in both Weld and Larimer Counties. III. Prevailing Vehicle Speeds Radar Check—None Taken Jamar Classifiers—None Taken IV. Physical Features Design or Existing Speed Limit: The design speed limit for this open county road is unknown. Currently the speed limit for this stretch of CR 904 is not posted,therefore the statutory speed limits for the state of Colorado apply. The statutory speed limit for open county roads is 55 miles per hour. Measurable Physical Features: This road segment is 1.008 miles in length, and contains six residential accesses, 2 field accesses,no farm accesses,no business accesses,no private or subdivision road intersections and two county road intersections. The two intersecting roads along this stretch of CR 904 are CR 10 (WCR 46) at milepoint 4.018, and CR 12 (WCR 48) at milepoint 5.026. Roadway Surface and Characteristics: This road is maintained by Larimer County by re-grading the surface and coating with magnesium chloride to control the dust. However, this stretch of road does not have the required six inches of gravel at the surface to keep the road in good condition for a longer period of time. For this reason, the surface of the road is usually muddy causing the road to be slippery in places. The road surface is c:\windows\temp\cr904speedstudy(2).doc - also rough with potholes and bumps. Larimer County has plans to properly maintain this stretch as soon as the east drainage ditch is moved. When this maintenance is performed, the road should wear the same at the stretch from CR 12 (WCR 48)to SH 60. The required maintenance should be performed either during the summer of 2002 or 2003. For more information about the status of this stretch concerning roadway surface and construction, contact Rick Gavaldon at(970) 498-4514 Vertical Alignment Information: There are no vertical curves along this stretch Horizontal Alignment Information: There are no horizontal curves along this stretch V. Test Run Information Test runs were performed in both directions using a two-wheel drive, full-sized,pickup truck. The average test run speed was 30 mph with runs ranging from 20 mph to 40 mph at 5 mile per hour increments. It should be noted that speeds less than 30 mph were excessively restrictive and difficult to maintain. This section of County Road 904 was traversed comfortably at 30 miles per hour and to a lesser extent at 35 miles per hour. No handling problems were experienced at this speed. Speeds in excess of 35 miles per hour, however, produced the following difficulties: 1. The rear of the truck fish tailing 2. When the roadway is wet or the surface had degraded from traffic, the vehicle had other handling difficulties. Minor handling difficulties, including wheel bounce,were experienced at speeds in excess of 35 mph throughout portions of the stretch due to surface irregularities. VI. Accident Experience Data contained in the Larimer County accident file shows the occurrence of two accidents on this stretch of CR 904 (WCR 1)between 1/1/1996 and 11/30/2001. None of these accidents resulted in injury. A brief description of each accident follows: 1. Milepoint 4.80, Property Damage Only, 11/12/1999: Vehicle 1 was southbound on CR 904 and vehicle 2 was northbound on CR 904. Vehicle 1 drifted into the northbound lane and struck Vehicle 2. 2. Milepoint 5.00, Property Damage Only, 2/11/2000: Vehicle 1 was southbound on CR 904 and lost traction on some ice, skidded off the left side of the road,and flipped over. c:A windows A temp\cr904speedstudy(2)doc Page 2 • VII. Traffic Characteristics and Control Average Daily Traffic Information: LOCATION R-ADT A-ADT YRWK CR 904 North of CR 10 (WCR 46) 200 190 1998/21 CR 904 North of CR 10 (WCR 46) 198 200 2000/30 CR 904 South of CR 12 (WCR 48) 200 190 1998/21 CR 904 South of CR 12 (WCR 48) 211 210 2000/30 Functional Classification: This section of Larimer County Road 904 (WCR I) is classified as a Minor Collector. Turning Movements and Control: Turning motions along this section of CR 904 are primarily ingress and egress motions involving field and residential accesses. Parking and Loading Vehicles: No parking or loading vehicles were observed during the duration of this study. However, occasional use of the roadway by these types of vehicles is assumed to exist. Commercial Vehicles: No commercial vehicles were observed during the course of this study. The majority of the traffic appeared to be local in nature, and was primarily limited to passenger cars and pickup trucks. Vehicle Conflicts With Pedestrians,Bicyclists,Animals, etc.: Minimal conflict with pedestrians and bicyclists is expected to exist given the composition of the roadside density that occurs along this section of CR 904. However,pedestrians from the residences along the roadway may occasionally use this stretch of CR 904 for commuting or recreational purposes. Domestic animals may occasionally drift away from residences and enter the roadway from time to time. Traffic Signal or Traffic Control Device Information: SIGN MILEPOINT DIRECTION CONTROLLED Stop 4.031 Southbound Stop Ahead Symbolic 4.117 Southbound T-Intersection Symbolic 4.957 Northbound Large Double Arrow 5.027 Northbound Note: Guide Signs and Object Markers not included in table c:A windows V temp Acr904speedstudy(2).doc Page 3 • VIII. Comments If the road surface was in better condition, a speed limit of 40 mph would be appropriate. Since this is not the case,a lower speed limit is warranted. IX. Recommendations It is recommended to post this section of CR 904 (WCR 1) at 35 mph. The speed limit should be reconsidered once the east side ditch is relocated and the road surface is graveled and treated Approved By: X Date: Mark Peterson, Larimer County Engineer c:\windows\temp\cr904speedstudy(2).doc Page 4 l LARIMER ENGINEERING DEPARTMENT COUNTY Post Office Box 1190 Fort Collins, Colorado 80522-1190 (970)498-5700 COMMITTED TO EXCELLENCE FAX(970)498-7986 SPEED ZONE SURVEY: LARIMER COUNTY ROAD 904 (WELD COUNTY ROAD 1) DATE: MARCH 712002 AUTHOR: CHRISTOPHER M. SAFFORD AND BILL GLEIFORST I. Location County Road Number: Larimer County Road 904 (CR 904) Starting and Ending Locations: From CR 12 (WCR 48) to SH 60 By Milepoints: Milepoints 5.026 to 6.150 II. General Remarks This speed study was initiated by request of residents in both Weld and Larimer Counties. III. Prevailing Vehicle Speeds Radar Check—Not Taken Jamar Classifiers— Location of Data Collection: County Road 904, approximately 0.5 miles north of CR 12 (WCR 48) Dates of Data Collection: Monday, January 7, 2002 to Wednesday, January 9, 2002 Conditions During Data Collection: Dry& Sunny, approximately 40 °F 85th Percentile Speeds for Vehicles in: (1) Northbound -+46 mph (2) Southbound —>47 mph (3) Overall -* 46 mph Limits of Pace(10 mph range) for Vehicles in: (1) Northbound -* 36-45 mph (2) Southbound 31 -40 mph (3) Overall -+ 36-45 mph c:A windows V temp ycr904speedstudy(3).doc IV. Physical Features Design or Existing Speed Limit: The design speed limit for this open county road is unknown. Currently the speed limit for this stretch of CR 904 is not posted, therefore the statutory speed limits for the state of Colorado apply. The statutory speed limit for open county roads is 55 miles per hour. Measurable Physical Features: This road segment is 1.124 miles in length, and contains fourteen residential accesses, no farm accesses,no business accesses,two private or subdivision road intersections and two intersections at each end of the section. The two intersecting roads at the ends of the section are CR 12 (WCR 48) at milepoint 5.026, and SH 60 at milepoint 6.150. Roadway Surface and Characteristics: This road is maintained by Larimer County by re-grading the surface and coating with magnesium chloride to control the dust. This type of treatment works very well on a road that does not see much traffic. Vertical Alignment Information: There are no vertical curves that cause significant sight distance problems. Horizontal Alignment Information: CURVE MILE ' POSTED ADVISORY '.. SAFE SPEED(M.P.H.) NUMBER POINT ! SPEED (M P.H.) SIGNS Northbound Southbound 1 5.27 N/A(55 MPH) Yes 20 20 2 5.43 N/A(55 MPH) Yes 20 20 V. Test Run Information Test runs were performed in both directions using a two-wheel drive, full-sized,pickup truck and a Dodge Stratus passenger car. The average test run speed was 40 mph with runs ranging from 30 mph to 50 mph at 5 mile per hour increments. It should be noted that speeds less than 35 mph were excessively restrictive and difficult to maintain. This section of County Road 904 was traversed comfortably at 40 miles per hour in the pickup truck. No handling problems were experienced at this speed. Speeds in excess of 40 miles per hour, however, produced the following difficulties: 1. There are two turns with an advisory speed of 20 MPH in the southern %z mile of the road. 2. At speeds of 45 miles per hour or greater, traffic entering the roadway from residential driveways and intersecting roads could cause problems. 3. When the roadway is wet or the surface had degraded from traffic, the vehicles had handing difficulties. Minor handling difficulties, including wheel bounce, were experienced at speeds in excess of 40 mph in the pickup truck and in excess of 35 MPH in the small passenger car, due to surface irregularities. c:\windows\temp\cr904speedsludy(3).doc Page 2 of 4 VI. Accident Experience Data contained in the Larimer County accident file shows the occurrence of two accidents on this stretch of CR 904 between 1/1/1996 and 11/30/2001. None of these accidents resulted in injury. A brief description of each accident follows: 1. Milepoint 5.55,Property Damage Only, 10/2/1997: Vehicle 1 was southbound on CR 904. A non-contact vehicle traveling northbound was driving on the wrong side of the road. Vehicle 1 drove off the right side of the road and collided with a fence. 2. Milepoint 5.15,Property Damage Only, 2-6-2000: Vehicle 1 was traveling on CR 904. A non-contact vehicle was traveling towards Vehicle 1 on the wrong side of the road. Vehicle 1 drove off the right side of the road and collided with a fence. The directions were not specified. VII. Traffic Characteristics and Control Average Daily Traffic Information: LOCATION R-ADT A-ADT YR/WK CR 904 North of CR 12 (WCR 48) 136 130 1998/21 CR 904 North of CR 12 (WCR 48) 139 140 2000/30 CR 904 South of SH 60 255 240 1998/21 CR 904 South of SH 60 271 275 2000/30 CR 904 @ Milepoint 5.53 *** 186 186 2002/02 *** This count was taken by a Jamar Classifier Functional Classification: This section of Larimer County Road 904 is classified as a minor collector Turning Movements and Control: Turning movements along this section of CR 904 are primarily ingress and egress involving field and residential accesses and the private /subdivision road intersections. Parking and Loading Vehicles: No parking or loading vehicles were observed during the duration of this study. However, occasional use of the roadway by these types of vehicles is assumed to exist. Commercial Vehicles: A few commercial vehicles were observed and occasional use of CR 904 by farm equipment was also noted. The majority of the traffic appeared to be local in nature, and was primarily limited to passenger cars and pickup trucks. Vehicle Conflicts With Pedestrians,Bicyclists, Animals, etc.: Minimal conflict with pedestrians and bicyclists is expected to exist given the composition of the roadside density that occurs along this section of CR 904. However,pedestrians from the residences e'.AwindowsAtempkr904speedstudy(3).doc Page 3 of4 along the roadway may occasionally use this stretch of CR 904 for commuting or recreational purposes. Domestic animals may occasionally drift away from residences and enter the roadway from time to time. Traffic Signal or Traffic Control Device Information: SIGN MILEPOINT DIRECTION CONTROLLED Yield 5.033 Southbound Speed Limit 35 *** 5.052 Northbound Turn Left 5.17 Northbound 20 MPH Advisory 5.17 Northbound Turn Right 5.36 Northbound 20 MPH Advisory 5.36 Northbound Turn Right 5.36 Southbound 20 MPH Advisory 5.36 Southbound Turn Left 5.533 Southbound 20 MPH Advisory 5.533 Southbound Stop 6.14 Northbound Large Double Arrow 6.148 Northbound Note: Guide Signs and Object Markers not included in table *** This speed limit sign is not a legal speed limit. Larimer County has no record of installing this sign and no speed study has been performed along this stretch of CR 904. VIII. Comments The test drives in the pickup truck felt safe and comfortable at speeds up to 40 MPH on the majority of this road section. The major restriction for speed along this stretch is the horizontal curves located near the southern end of the road section. Since the advisory speeds for these curves is 20 mph, a speed limit over 35 mph would require an abrupt drop in speed to negotiate the turns. The driver of the small passenger car used in the test runs experienced handling problems due to the surface irregularities at speeds greater than 35 MPH. There has been some new home construction along this section of road as well as a new subdivision road access into Weld County on the east side of the road. IX. Recommendations It is recommended that this stretch of CR 904 (WCR 1) form CR 12 (WCR 48) to SH 60 be posted at 35 mph. Approved By: X Date: Mark Peterson, Larimer County Engineer a\windows\temp\cr904speedstudy(3).doe Page 4 of4 Hello