Oregon Department of Transportation Region   1                        
                           
                                       
  2006 - Top 10% Sites Investigative Report - By Hwy, MP                        
Region Dist. Rte. Hwy Rdwy Road Name (and Direction)
 BMP EMP ADT Crashes Fatals SPIS # Type  * Analysis Date Problem Description Potential Remedies Estimated Costs Impediments to Implementation line #    
                                    14    
1 02A I-5 001 1 PACIFIC - NORTHBOUND ONLY 286.41 286.59 134,900 12   57.72 5% 08/24/06 NB I-5 is an urban fwy that services commuters bound for I-205 and the Portland metro area. Major crash types are Rear (5/8) and Side Swipe Overtake (SS-O, 2/8).  There were 2 Inj “A” crashes between 2001 and 2005, 1 rear and 1 SS-O.  A Preservation project will include this location (Key 13702, 2007, $6 million) and will improve pavement, signs and striping. $6,000,000   15    
1 02A I-5 001 1               5%   Most of the crashes occurred from 3pm - 6pm with only 1 crash on Wet road.  Congestion occurs just before the Elligsen on ramp merge to I-5.  South of the Elligsen on ramp is the Stafford Rd on ramp beneath the Boones Ferry overpass.  A project on I-205 (Key 12874, late 2007, $36 million) will add a lane and reduce congestion here. $36,000,000   16    
1 02A I-5 001 1               5%   Drivers are merging on to I-5 from Stafford Rd. while drivers from Elligsen on ramp are approaching I-5 at the same time. The two on ramps are too close, causing congestion in peak hours. NEW  Add a through lane and an auxiliary lane through the I-205 exit. $34,000,000   17    
1 02A I-5 001 1               5%           18    
1 02A I-5 001 1 PACIFIC - SOUTHBOUND ONLY 286.41 286.59         5% 08/24/06 SB I-5 between is an urban fwy that services commuters south bound from I-205 and the Portland metro area.  Major crash types are Rear and Side Swipe Overtake (SS-O). There were no Inj A or fatal crashes between 2001 and 2005.

 A Preservation project will include this location (Key 13702, 2007, $6 million) and will improve pavement, signs and striping. $6,000,000   19    
1 02A I-5 001 1               5%   Most of the crashes occurred between 6am – 9am and 3pm and 9pm with 4 crashes occurring on Dry road and 3 on Wet road.  The SPIS site is just before the Stafford Rd. N. Wilsonville exit 289 off ramp. NEW  Add an auxiliary lane from I-205 to Stafford Road. $39,000,000   20    
1 02A I-5 001 1               5%   North of this site is the I-205 on ramp to I-5 southbound. The short distance between I-205 and Exit 289 and congestion along I-5 during peak hours includes vehicles weaving for Exit 289, cause further conflicts.       21    
1 02A I-5 001 1               5%           22    
                                    23    
1 02A I-5 001 1 PACIFIC - NORTHBOUND ONLY 286.91 287.09 134,900 20 2 65.03 5% 08/24/06 NB I-5 is an urban fwy that services commuters bound for I-205 and the Portland metro area. 91% of the crash types are Rear end and SS-Overtake.  There were no Inj “A” nor fatal crashes between 2001 and 2005. Most crashes occurred from 3 - 6 pm  A Preservation project will include this location (Key 13702, 2007, $6 million) and will improve pavement, signs and striping. $6,000,000   24    
1 02A I-5 001 1               5%   Crashes markedly increased in 2005. Congestion occurs just before the Elligsen on ramp merge to I-5.  South of the Elligsen on ramp is the Stafford Rd on ramp beneath the Boones Ferry overpass.   A project on I-205 (Key 12874, late 2007, $36 million) will add a lane and reduce congestion here. $36,000,000   25    
1 02A I-5 001 1               5%    Drivers are merging on to I-5 from Elligsen while congestion is being created from drivers setting up for the I-205 exit just to the north. NEW  Add a through lane and an auxiliary lane through the I-205 exit. $34,000,000   26    
1 02A I-5 001 1               5%           27    
1 02A I-5 001 1 PACIFIC - SOUTHBOUND ONLY 286.91 287.09         5% 08/24/06 SB I-5 is an urban fwy that services commuters south bound from I-205 and the Portland metro area. Rear and Side Swipe Overtake (SS-O) crashes are 54% of the crashes here. There were 2 fatal crashes and 1 Inj A crash between 2001 and 2005.

 A Preservation project will include this location (Key 13702, 2007, $6 million) and will improve pavement, signs and striping. $6,000,000   28    
1 02A I-5 001 1               5%   Most of the crashes occurred between noon and 6 pm.  The SPIS site is just before the Stafford Rd / Elligson exit. N. Wilsonville  NEW  Add an auxiliary lane from I-205 to Stafford Road. $39,000,000   29    
1 02A I-5 001 1               5%   North of this site is the I-205 ramp to I-5 southbound. The short distance between I-205 and Exit 289 and congestion along I-5 during peak hours includes vehicles weaving for Exit 289, cause further conflicts.       30    
1 02A I-5 001 1               5%           31    
                                    32    
1 02A I-5 001 1 PACIFIC - NORTHBOUND ONLY 288.91 289.09 137,400 32   69.74 5% 08/24/06 NB I-5 is an urban fwy that services commuters bound for the Portland metro area. 91% of the crash types were Rear end and SS-Overtake.  There were 2 Inj “A” crashes between 2001 and 2005. Most crashes occurred from 6 am - noon A Preservation project will include this location (Key 13702, 2007, $6 million) and will improve pavement, signs and striping. $6,000,000   33    
1 02A I-5 001 1               5%   Crashes increased from 2003 - 2005. Congestion occurs here due to 2 lanes of I-205 merging to I-5 northbound (1 add lane, 1 auxiliary). The short distance to the Nyberg exit to the north causing weaving problems and conflicts. NEW  Add a lane through the Nyberg exit.  Braid the Nyberg and I-205 ramps and (if needed) fix the super on the curving Nyberg ramp. $51,000,000   34    
1 02A I-5 001 1               5%           35    
1 02A I-5 001 1               5%           36    
1 02A I-5 001 1 PACIFIC - SOUTHBOUND ONLY 288.91 289.09         5% 08/24/06 SB I-5 is an urban fwy that services commuters south bound from the Portland metro area. Rear and Side Swipe Overtake (SS-O) crashes were 91% of the crashes here. There were no fatal crashes and nor Inj A crashes between 2001 and 2005.

 A Preservation project will include this location (Key 13702, 2007, $6 million) and will improve pavement, signs and striping. $6,000,000   37    
1 02A I-5 001 1               5%   Most of the crashes occurred between 3 pm and 6 pm.  The site is just north of the off ramp to I-205. North is the Nyberg ramp to I-5 southbound. The short distance between these ramps causes congestion and weaving conflicts. A project on I-205 (Key 12874, late 2007, $36 million) will add a lane and reduce congestion here. $36,000,000   38    
1 02A I-5 001 1               5%           39    
1 02A I-5 001 1               5%