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Colorado 2006 Five Percent Report

This report is in response to the Federal requirement that each state describe at least 5 percent of its locations currently exhibiting the most severe highway safety needs, in accordance with Sections 148(c)(1)(D) and 148(g)(3)(A), of Title 23, United States Code.  Each state’s report is to include potential remedies to the hazardous locations identified; estimated costs of the remedies; and impediments to implementation of the remedies other than costs.  The reports included on this Web site represent a variety of methods utilized and various degrees of road coverage.  Therefore, this report cannot be compared with the other reports included on this Web site.

Protection from Discovery and Admission into Evidence—Under 23 U.S.C. 148(g)(4) information collected or compiled for any purpose directly relating to this report shall not be subject to discovery or admitted into evidence in a Federal or State court proceeding or considered for other purposes in any action for damages arising from any occurrence at a location identified or addressed in the reports.

Additional information, including the specific legislative requirements, can be found in the guidance provided by the Federal Highway Administration,
http://safety.fhwa.dot.gov/safetealu/fiveguidance.htm.

Colorado Department of Transportation
Highway Safety Improvement Program Annual Report 2006

5 Percent Report

HSIP 5% Report Synthesis

This report listing represents a minimum of 5% of the locations in Colorado that exhibit an accident history greater than the statewide average (see Table 2).  There are no impediments to implementing the suggested countermeasures other than funding.  The methodology of pattern recognition and direct diagnostics techniques was used to generate this listing.  This methodology was developed to conduct diagnostic analysis of safety problems for different classes of roads in various environments.  This methodology is based on numerous research papers[1] and actual applications of the theories and principles in Colorado.  Revised brief excerpts from these papers are below explaining the methodology used.  All safety programs and analysis methods are available and are used on all public roads in Colorado.

There is an established consensus among traffic safety researchers that a nonlinear relationship exists between traffic exposure and safety.  This relationship is reflected by the safety performance functions (SPFs) calibrated for various classes of roads and intersections.  One of the main uses of SPFs is to identify locations with potential for accident reduction.  While this application is certainly important, the use of SPFs provides no information related to the nature of the accident occurrence.  Without being able to relate accident frequency and severity to roadway geometrics, traffic control devices, roadside features, roadway condition, driver behavior, or vehicle type, it is not possible to develop effective countermeasures.  A methodology was developed to provide guidance in diagnostics of safety problems, recognition of accident patterns, and development of appropriate countermeasures.  Considering that traffic accidents can be viewed as random Bernoulli trials, it is possible to detect deviation from the statistical process by computing observed cumulative probability for each of the accident characteristics.  Detection of an accident pattern at an intersection suggests the presence of an element in the roadway environment that triggered a deviation from a random statistical process in the direction of reduced safety.  Identification of such an element always provides a critical clue to accident causality.

A framework of 84 normative parameters was developed to provide a knowledge base for diagnostic analysis of different classes of roads in rural and urban environments.  Because traffic accidents can be viewed as random Bernoulli trials, it is possible to detect deviation from the random statistical process by computing the observed cumulative probability for each of the 84 normative parameters.  The 84 parameters can be grouped into 11 general categories: accident type, severity, accident location, road condition, direction of travel, lighting condition, vehicle type, human factors, driver condition, weather condition, and time of day.  It is important to note that some, but not all, normative parameters within the same safety performance function (SPF) change with annual average daily traffic (AADT).  For instance, in general, the severity of accidents gradually decreases and the distribution of accidents by accident type changes with AADT.  With this in mind, 84 normative parameters were stratified for three ranges of AADT: low, medium, and high.  In the process of assessing the nature and magnitude of safety problems at specific locations, SPF analysis should be used in conjunction with an appropriate diagnostic investigation by using the pattern recognition algorithm.  The stratification of the diagnostic parameters by AADT improves the ability to identify accident patterns more accurately.  For instance, for the low range of AADT on two-lane mountainous roads, the average proportion of head-on collisions is 2%, while it is 8% for the high range of AADT.  Not accounting for this change would lead to misdiagnosis of the problem.  While level of service of safety (LOSS) provides a means of assessment of the magnitude of the safety problem, it is important to understand that accident patterns susceptible to correction may exist with or without overrepresentation in total frequency, as detected by SPF.

Colorado has a extensive crash data and roadway inventory system available in database format.  Some of the information is electronically gathered, transferred, and processed, while much of it though is still done on paper and later translated to electronic format.  Colorado’s goal for a fully automated traffic records system and timely collection of data is 2010.

For more information, please contact Bryan Allery, Traffic Engineer, Colorado Department of Transportation, 303.757.9967.

[1] Kononov, J and Janson, B, Diagnostic Methodology for the Detection of Safety Problems at Intersections In Transportation Research Record 1784, TRB, National Research Council, Washington, D.C., 2002 and;
Kononov, J and Allery, B, Level of Service of Safety Conceptual Blueprint and Analytical Framework In Transportation Research Record 1840, TRB, National Research Council, Washington, D.C., 2003.

5% Project List

Highway Information Description ADT Accident History Dates Type of Improvement B/C Cost Estimate
Reg Hwy Sec From To PDO INJ FAT From To
1 6 F 220.00 225.00 SH 6 Between Apapahoe Basin and the Top of Loveland Pass 1,395 44 13 0 01/01/99 12/31/03 Centerline Rumple Strips and Shoulder Paving 1.12 $   600,000
1 9 CD Various SH9C from Fairplay to I-70/SH9D from I-70 to Summit Co Line 6,592 724 274 6 01/01/96 12/31/98 VMS for Weather, High Wind, Adverse Conditions 3.70 $   600,000
1 24 C 453.86 454.87 SH024C @ Lincoln 2,632 11 5 0 01/01/96 12/31/98 Upgrade to 12" LED's and Backing Plates 1.48 $     50,000
1 25 A 171.70 172.30 I-25 Near Larkspur 46,886 58 25 1 01/01/02 12/31/04 Anti-Icing System 1.74 $   700,000
1 25 A 174.50 181.00 I-25 S/O Castle Rock 54,059 98 81 3 01/01/01 12/31/02 New Median Guard Rail or Cable Rail 8.10 $   699,362
1 67 E 117.40 124.00 SH67 west of Sedalia 1,358 37 27 0 01/01/99 12/31/03 Median rumble strips 7.86 $     50,000
1 70 A 202.50 205.00 I-70 near Frisco 33,394 171 58 3 01/01/99 12/31/03 Median rail 10.21 $   465,000
1 70 A 205.00 207.00 I-70 near Silverthorne 29,689 129 45 2 01/01/99 12/31/03 Median rail 7.75 $   285,000
1 70 A 210.00 212.00 I-70 at Upper Straight Creek 28,642 145 30 1 01/01/99 12/31/03 Guard rail 1.11 $   100,000
1 70 A 221.30 224.50 I-70 West of Bakerville 25,815 120 54 1 01/01/99 12/31/03 Median rail 4.87 $   590,000
1 70 A 237.00 241.00 I-70 Near Idaho Springs 39,670 240 86 3 01/01/99 12/31/03 VMS Signs for EB and WB 1.83 $   750,000
1 70 A 241.10 243.30 I-70 near Hidden Valley 42,741 147 76 2 01/01/99 12/31/03 Median rail 17.82 $   155,000
1 70 A 246.50 251.30 I-70 near Evergreen Pkwy 37,892 288 108 6 01/01/99 12/31/03 Median rail 6.12 $   885,000
1 74 A 7.05 7.10 SH 74 at Upper Bear Creek Rd 20,945 8 2 0 01/01/01 12/31/03 WB Left Turn Lane 1.12 $   150,000
1 83 A 53.00 65.00 Parker Road between Long Ave and Bayoud Gulch Rd 28,062 818 205 1 01/01/01 12/31/03 Restripe for 3 thru lanes for the entire corridor 4.52 $ 1,000,000
1 91 A 11.90 12.20 Cable Rail for Off Road Accidents at Outside Corners of Two Curves 3,912 8 5 0 01/01/98 12/31/02 Type 3 Guardrail on curves 1.48 $   150,000
1 91 A 18.50 20.00 SH91 near Copper Mountain 3,912 6 11 0 01/01/98 12/31/02 Type 3 Guardrail on curves 1.77 $   250,000
1 119 A 2.20 22.70 SH119 from MP 2.0 to Boulder-Gilpin County Line 6,520 164 128 2 01/01/96 12/31/98 VMS for Weather, High Wind, Adverse Conditions 2.33 $   250,000
1 285 D 163.50 248.37 SH285 from S/O Co Rd 402 to SH 8 Interchange 7,488 811 388 13 01/01/96 12/31/98 VMS for Weather, High Wind, Adverse Conditions 3.24 $   880,000
1 285 D 184.00 194.00 VMS for NB Adverse Weather Conditions 3,334 71 28 7 01/01/98 12/31/02 VMS, NB 3.61 $   255,000
1 285 D 196.00 206.00 VMS for SB Adverse Weather Conditions 2,865 85 30 7 01/01/98 12/31/02 VMS, SB 1.96 $   255,000
1 285 D 224.90 224.98 SH285 at CR 72 near Bailey 8,915 23 10 0 01/01/98 12/31/02 Relocate intersection, modify access by consolidation 1.27 $   538,000
1 Elbert Rd Co Rd 25-41 south of SH 86 1,746 2 3 0 05/01/03 09/30/05 Intersection geometric improvements 4.06 $     74,000
1 Various SH Location SH006F, SH009C, SH009D, SH085B 9,999 0 0 0 01/01/96 12/31/98 Upgrade to 12" LED's and Backing Plates 3.73 $   300,000
2 24 A 278.09 278.60 SH24A in Divide 14,007 22 5 0 01/01/96 12/31/98 Add Two-Way Left Turn w/Raised Median, Upgrade Signals, Access Control 1.16 $   400,000
2 24 A 293.60 293.70 SH24A at Fountain Ave/Topeka Ave 27,685 96 62 2 01/01/96 12/31/98 New Signals and Realign Intersection 2.04 $   175,000
2 24 A 294.70 296.60 SH 24 from MP 294.70 to MP 296.60 25,534 114 54 2 01/01/99 12/31/03 Install guardrail at selected sections of the roadway 1.40 $   750,000
2 24 A 318.68 318.78 SH24A at Dodge Road E/O Colorado Springs 13,403 9 13 1 01/01/96 12/31/98 New Signal, Right Turn Decel Lane 1.70 $   200,000
2 24 A 322.48 322.59 SH24A at Judge Orr Rd E/O Colorado Springs 6,695 5 8 1 01/01/96 12/31/98 Realign Intersection to match, add left turn lanes, signalize 1.57 $   300,000
2 24 G 306.98 306.98 SH 24 at SH 83 66,000 206 49 0 01/01/99 12/31/01 Widen N, S and E approaches, provide dual N & S lefts and E right turn lane 2.53 $   600,000
2 25 A 20.50 21.90 I-25 north of Trinidad 9,855 4 12 3 01/01/99 12/31/03 MBGR, culvert extensions, regrading and tree trimming 1.42 $   350,000
2 25 A 102.50 105.80 I-25 from MP 102.50 to MP 105.80 26,138 58 26 2 01/01/99 12/31/03 Install median cablerail and at selected locations between I-25 and Frontage Road 2.51 $ 1,100,000
2 25 A 129.75 133.50 I-25 near Fountain 35,148 80 46 10 01/01/98 12/31/02 Guardrail, median rail, spot improvements and increased delineation 4.09 $   540,000
2 45 A 1.26 1.36 SH45A at Prairie 16,624 301 185 2 01/01/96 12/31/98 Upgrade Signals, Mast Arms, Heads, and Detectors 1.98 $   100,000
2 45 A 3.90 3.99 SH 45 at Red Creek Springs Road/Rutgers Avenue 25,617 43 18 1 01/01/03 12/31/05 Signal upgrades and geometric improvements 1.63 $   600,000
2 45 A 3.90 4.00 SH45A at Rutgers 22,683 74 36 0 01/01/96 12/31/98 Upgrade Signals, Mast Arms, Heads, and Detectors 2.48 $   100,000
2 45 A 5.02 5.12 SH45A at Goodnight 20,702 64 38 0 01/01/96 12/31/98 Upgrade Signals, Mast Arms, Heads, and Detectors 1.31 $   100,000
2 45 A 7.07 7.17 SH 45 and 24th St in Pueblo 21,377 14 8 0 01/01/98 12/31/02 Install new signal 1.31 $   180,000
2 50 A 263.00 266.70 SH 50 between MP 263.00 and MP 266.70 3,157 14 20 0 01/01/99 12/31/03 Install guardrail along sections of WB SH 50 1.16 $   525,000
2 50 A 279.18 279.42 SH50 at 15th and 16th, also Main and 15th in Canon City 20,309 58 15 1 01/01/99 12/31/03 Relocate signal, install roundabout at nearby location 4.25 $   366,885
2 50 A 279.32 279.42 SH50A at 16th/Main 22,522 98 32 0 01/01/96 12/31/98 Upgrade Signals, Mast Arms, Heads, Detectors, Close S Frnt Rd, Rt Turn Lanes 2.26 $   300,000
2 50 A 280.26 280.36 SH50A at Reynolds 20,488 188 79 1 01/01/96 12/31/98 Upgrade Signals, Mast Arms, Heads, and Detectors, Coordinate with Frntg Rd 1.16 $   200,000
2 50 A 309.74 309.82 SH 50 at Purcell Boulevard 26,589 54 38 0 01/01/99 12/31/03 Widening Purcell Blvd, upgrade signals, and signal timing 1.58 $ 1,400,000
2 50 A 313.15 313.80 SH50 in Pueblo between Fortino and Wills 34,953 177 98 1 01/01/99 12/31/03 Widening, Singal Improvements, Turn Lanes, Access Modifications 2.17 $ 2,878,066
2 50 A 313.47 313.57 SH50A at Baltimore 27,744 98 47 2 01/01/96 12/31/98 Upgrade Signals, Mast Arms, Heads, and Detectors 1.76 $   100,000
2 50 B 335.71 335.76 SH50 at SH 209 at Avondale 3,983 5 6 0 01/01/99 12/31/03 Left turn lane 1.06 $   280,000
2 50 B 368.88 368.98 SH50B at SH71 6,219 31 7 0 01/01/96 12/31/98 New Signal 2.57 $   100,000
2 50 B 381.50 383.50 SH 50 near La Junta 3,792 5 7 1 01/01/98 12/31/02 Shoulder widening, rumble strips and guardrail 1.20 $   449,000
2 50 C 2.81 2.91 SH50C at Aspen 22,392 175 86 3 01/01/96 12/31/98 Upgrade Signals, Widen Approaches, Improve Radii 1.70 $   150,000
2 69 A 66.5/72.5 67.5/73.5 2 Curves on SH 69 near Westcliffe 682 6 14 2 01/01/98 12/31/02 Install beacons, chevrons, widen shoulders and install guardrail 11.03 $   300,000
2 83 A 21.19 21.29 SH83A at Shoup Road 8,313 15 13 0 01/01/96 12/31/98 Add Left and Right Turn Lanes, and Lighting at Intersection 1.84 $   200,000
2 94 A 8.04 8.14 SH94A at Curtis (Co Rd 439) 7,683 17 9 0 01/01/96 12/31/98 Add Left Turn Lanes, Upgrade Signals 1.83 $   174,000
2 115 A 3.80 6.80 SH 115 from MP 3.80 to MP 6.80 5,576 44 31 1 01/01/99 12/31/03 Install guardrail at selected locations and shoulder widening where needed 3.11 $   762,571
2 115 A 4.61 4.71 SH115A at McKenzie 6,859 142 88 0 01/01/96 12/31/98 Add Left and Right Turn Lanes, Lighting, and Reconfigure Intersection 1.16 $   200,000
2 165 A 18.65 23.90 SH 165 from MP 18.65 to MP 23.90 998 4 9 1 01/01/99 12/31/03 Install guardrail at selected curves, steep drop-offs, and along crest of the dam  4.75 $   500,000
2 165 A 18.65 23.90 SH165 near the San Isabel Reservoir 988 4 9 1 01/01/99 12/31/03 MBGR 4.75 $   500,000
2 Airport Rd and S. Powers Blvd Airport Rd. and S. Powers Blvd 133,800 71 29 1 10/01/02 09/30/05 Add accel lane south of airport (SB) and rebuild signals 1.69 $   250,000
2 E. Platte Ave E. Platte Ave from Union Blvd to Hancock Ave 35,300 93 36 1 09/30/02 09/30/05 Rebuild intersections and install center median 3.01 $   300,000
2 El Paso at Fillmore El Paso St at Fillmore St 46,500 45 6 0 03/31/03 03/31/06 Signal and PED upgrades, realignment N/S leg of intersection 1.28 $   250,000
2 Purcell Blvd at Industrial Blvd Purcell Blvd at Industrial Blvd west of Pueblo 14,626 14 6 0 01/01/03 12/31/05 Install new signal, lane signage, striping and advanced warning 1.03 $   399,700
2 Union Blvd/Fillmore St/Circle Dr Union Blvd and Fillmore St/Circle Dr in Co Springs 88,000 112 26 0 09/30/00 09/30/03 Install 3rd left turn lane, EB, and modify timing 1.71 $   200,000
3 6 D 99.20 99.28 SH 6 and 9th in Silt 4,161 19 4 0 01/01/98 12/31/02 Roundabout 1.28 $   400,000
3 24 A 173.25 174.00 SH 24 near Tennessee Pass 3,268 10 3 0 01/01/00 12/31/02 Flatten curves, add shoulders 1.38 $   290,000
3 40 A 230.00 233.00 SH 40 End Sections 13,334 34 8 0 01/01/02 12/31/04 End Section for Barrier Rail 10.26 $   350,000
3 50 A 35.33 35.43 SH 50 at Road 28-1/2 12,267 5 15 1 01/01/99 12/31/03 Install new signal - county agreed to inlcude a dilemma zone system in the design 1.14 $   681,725
3 50 A 93.01 93.07 SH 50 and Park Ave in Montrose 16,263 32 12 0 01/01/98 12/31/02 New Signal 1.10 $   250,000
3 70 A 153.00 167.00 I-70 West of Vail 26,635 437 151 4 01/01/02 12/31/04 Wildlife Fencing 4.00 $   750,000
3 70 A 171.00 173.50 I-70 between MP 171.00 and MP 173.50 (Dowd Canyon) 32,821 136 48 1 01/01/01 12/31/03 Wildlife fence, drainage improvements, extension of EB on ramp, signing, striping and lighting 2.29 $   600,000
3 70 B 0.40 1.30 SH 70B between MP 0.40 and MP 1.30 (Industrial Development) 20,098 19 7 1 01/01/01 12/31/03 Realignment, signalization and median channelization as well as access control 4.17 $   500,000
3 70 B 11.80 12.00 SH70B at the Peachtree Shopping Center 24,600 30 20 0 01/01/99 12/31/03 Consolidate 3 unsignalized accesses into 1 signalized intersection 1.68 $   700,000
3 70 Z 0.70 1.07 SH 70Z in Grand Junction 12,956 157 43 0 01/01/98 12/31/02 Signal improvements, timing 3.69 $   150,000
3 82 A 0.18 0.18 SH 82 at Pine St in Glenwood 26,871 72 13 0 01/01/98 12/31/02 Geometry and signal upgrades 2.28 $   100,000
3 82 A 7.00 11.00 SH 82 between MP 7.00 and MP 11.00 21,788 103 31 2 01/01/01 12/31/03 New deer fence, repair of existing deer fence and installation of WA passages 1.29 $ 1,000,000
3 82 A 11.70 11.70 SH 83 and SH 133 intersection in Carbondale 16,312 20 18 1 01/01/99 12/31/01 Double left for WB 3.92 $   643,000
3 82 A 34.46 34.50 SH 82 at Smith Way 15,326 12 12 1 01/01/99 12/31/03 Signalization, auxiliary lanes, channelization, regrading and dilemma zone 1.00 $ 1,700,000
3 82 various SH 82 near Carbondale, Aspen 20,107 116 53 1 01/01/98 12/31/02 Dilemma zone 3.19 $   300,000
3 114 A 0.00 18.00 SH 114 Cochetopa Canyon Curve Correction 465 49 14 1 01/01/99 12/31/03 Curve Corrections, Rock Removal, CL Rumbles?, Shoulders @ Spot Locations 1.02 $   150,000
3 133 A 46.00 51.50 SH 133 between Redstone and Marble Guardrail 1,567 22 7 1 01/01/01 12/31/03 New guardrail installations 6.45 $   600,000
3 550 B 127.74 128.74 SH 550 at Niagara 22,670 153 48 0 01/01/01 12/31/03 Dual WB left turn lanes, single right turn lane, close adjacent driveway 1.44 $   300,000
3 550 B 128.01 128.24 Highway 550 from Church St to Niagara Rd 20,714 55 19 0 01/01/01 12/31/03 Raised median 1.87 $   250,000
3 550 B 128.88 128.95 SH550 and S 5th St in Montrose 24,260 38 15 2 01/01/98 12/31/02 New signal 2.32 $   475,000
3 23 Road 23 Road at G Road 3,467 8 12 1 01/01/00 12/31/05 Roundabout to replace stop controlled intersection 2.38 $   920,000
3 31.5 Rd 31.5 Rd. at SH 70B and E.5 Rd. 22,850 44 36 2 01/01/99 12/31/03 Complete reconfiguration, pedestrian improvements, channelization 6.44 $   500,000
3 50 and 550 SH 50 at Park Ave. and SH 550 at South 5th St. in Montrose 40,523 39 17 2 01/01/00 12/31/02 General signal upgrades 2.17 $   400,000
3 High School Road High School Road in Mesa County 34,520 22 20 2 01/01/99 12/31/01 Intersection relocation and realignment 8.65 $   584,000
3 Patterson Ave. at 7th St. Intersection of Patterson and 7th St in Grand Junction 43,227 40 7 0 01/01/00 12/31/03 Install right turn lane for EB traffic 1.82 $   198,000
4 1 A 1.84 1.84 SH1 at Weld County Road 54 5,718 4 6 0 01/01/01 12/31/03 Add new signal, NB and SB left turn lanes and dilemma zone protection 1.94 $   120,000
4 6 J 388.90 397.60 SH 6 near Merion and Atwood 956 24 9 2 01/01/98 12/31/01 Shoulder widening, delineators and signing 1.59 $   200,000
4 6 J 434.60 435.67 SH 6 from MP 434.6 to MP 435.67 1,567 5 1 1 01/01/98 12/31/00 Widen shoulders, rumble strips, delineators and striping 11.98 $   150,000
4 7 A 5.60 7.00 SH 7 near Estes Park 1,951 3 5 0 01/01/98 12/31/01 Slope flattening, shoulder widening, signing and guardrail 1.05 $   275,000
4 7 A 19.15 24.60 SH 7 from MP 19.15 to MP 24.6 1,450 13 11 1 01/01/98 12/31/00 Widen shoulders, flatten sideslopes, improve signing and add guardrail 5.87 $   100,000
4 7 A 25.90 29.50 SH 7 between Raymond and Lyons 1,449 7 4 0 01/01/98 12/31/01 Slope flattening, guardrail, delineators and signing 1.58 $   175,000
4 14 B 95.20 96.70 SH 14 from MP 95.2 to MP 96.7 1,550 2 4 0 01/01/98 12/31/00 Guardrail and striping 2.99 $   100,000
4 14 C 152.11 152.20 SH 14 at WCR 33 5,245 2 3 0 01/01/02 12/31/04 Construct left turn lanes on mainline 1.13 $   240,000
4 14 C 219.76 226.30 SH 14 from MP 219.76 to MP 226.3 1,366 8 6 1 01/01/98 12/31/00 Widen shoulders, flatten sideslopes, improve signing and striping 10.04 $   200,000
4 25 A 262.30 262.50 I-25 at Windsor, west ramp intersection 18,187 17 11 0 01/01/01 12/31/03 Widen ramp shoulders, restripe to 2 lanes and add 500' of length 1.03 $   250,000
4 34 A 64.70 66.30 SH 34 near Estes Park 5,196 23 13 0 01/01/98 12/31/01 Auxiliary lanes, signing and delineators 1.21 $   225,000
4 34 A 110.18 110.29 SH 34 at 35th Avenue 32,331 48 22 0 01/01/01 12/31/03 Reconfiguring WB left and right turn lanes 1.01 $   416,815
4 34 A 111.95 111.99 SH 34 at 11th Avenue 29,015 44 19 1 01/01/01 12/31/03 Signal, lighting, and video detection improvements 1.91 $   477,250
4 34 A 119.17 119.19 SH 34 at SH 37 in Kersey 6,649 9 5 1 01/01/98 12/31/01 Signs and flashing beacons 1.88 $   125,000
4 34 D 3.55 3.60 SH34 at 83rd Ave in Greeley 15,187 11 5 0 01/01/01 12/31/04 Add left turn lanes for EB and WB 1.02 $   350,000
4 36 B 0.97 1.48 SH 036B near Estes Park E/O SH 7A Jct 6,660 16 10 0 01/01/96 12/31/98 Replace Wood Posts and Wire w/MBGR to Separate Vehicles from Lake/Peds 1.03 $     87,500
4 36 B 34.99 35.02 SH 36 at SH 119 (Iris Ave) 29,037 45 24 0 01/01/01 12/31/03 Additional EB thru lane, NB and SB LT lanes and raised PED crossings 3.89 $   310,000
4 36 B 38.00 47.00 Ramp Metering at Various Locations 69,780 635 310 6 01/01/00 12/31/02 Ramp meters at WB Interlocken, WB McCaslin and EB Foothills 10.23 $   401,000
4 36 D 168.59 172.52 SH 36 from MP 168.59 to MP 172.52 841 2 2 1 01/01/98 12/31/00 Widen shoulders, flatten sideslopes, improve signing and striping 1.37 $   100,000
4 37 A 2.84 6.70 SH 37 from MP 2.84 to MP 6.7 1,681 7 7 0 01/01/98 12/31/00 Flatten sideslopes and improve signing and striping 5.93 $     75,000
4 42 A 1.95 1.97 SH 42 at South Boulder Road 14,204 68 20 1 01/01/99 12/31/03 Widening, geometric improvements, double lefts, protected-only 1.04 $ 2,550,000
4 52 A 1.15 7.25 SH 52 at 79th, 95th, SH287 and CR901 12,212 102 72 3 01/01/01 12/31/03 Dilemma zone protection at 4 intersections 2.56 $   100,000
4 52 A 3.16 3.18 SH 52 at North 95th St. in Boulder County 10,815 12 6 0 01/01/98 12/31/02 Widen NB and SB approaches along with turn lanes on traffic signals 2.23 $   150,000
4 52 A 27.46 27.47 SH 52 at Co Rd 41 4,532 1 2 2 01/01/01 12/31/03 Construct left turn lanes on mainline 13.83 $   300,000
4 52 A 52.00 54.60 SH 52 from MP 52 to MP 54.6 443 1 3 0 01/01/98 12/31/00 Widen shoulders and flatten sideslopes 1.37 $   100,000
4 55 A 2.24 4.50 SH 55 from MP 2.24 to MP 4.50 near Crook 833 2 5 0 01/01/98 12/31/00 Widen shoulders, flatten sideslopes and new striping 1.68 $   200,000
4 60 A 2.08 4.56 SH 60 from MP 2.08 to MP 4.56 1,195 4 6 0 01/01/98 12/31/00 Widen shoulders, flatten sideslopes and new striping 1.75 $   150,000
4 61 A 32.50 35.00 SH 61 near Sterling 1,047 1 2 1 01/01/01 12/31/03 Flatten side slopes, signs and guardrail 3.53 $   350,000
4 66 B 36.58 37.38 SH 66 from MP 36.58 to MP 37.38 8,225 70 29 1 01/01/98 12/31/00 Improve turn lanes, add guardrail, signing and striping 6.20 $   100,000
4 66 B 46.10 50.70 SH 66 west of Platteville 6,807 77 33 3 01/01/02 12/31/04 Signing, delineators, shoulder widening, slope flattening, pipe extension and auxiliary lanes 3.80 $   260,000
4 71 D 130.10 134.64 SH 71 from MP 130.1 to MP 134.64 946 2 5 0 01/01/98 12/31/00 Flatten sideslopes and improve signing and striping 1.75 $   150,000
4 71 D 153.00 157.20 SH 71 from MP 153 to MP 157.2 1,070 4 3 1 01/01/98 12/31/00 Flatten sideslopes and improve signing and striping 2.50 $     75,000
4 71 E 181.70 195.00 SH 71 from MP 181.7 to MP 195 355 6 6 0 01/01/98 12/31/00 Flatten sideslopes, add guardrail and improve signing 1.95 $   150,000
4 72 B 41.03 47.50 SH 72 from MP 41.03 to MP 47.5 1,232 14 10 1 01/01/98 12/31/00 Flatten sideslopes, add guardrail and improve signing and striping 2.48 $   200,000
4 76 A 57.90 59.70 I 76 in Weld County between Roggen and Wiggins 8,477 21 13 3 01/01/98 12/31/01 Slope flattening, bridge rail and signing 1.23 $   275,000
4 85 C 239.09 241.40 SH 85 from MP 239.09 to MP 241.4 19,458 36 34 2 01/01/98 12/31/00 Accel/Decel lanes, striping and rumble strips 1.53 $ 2,500,000
4 85 C 296.20 298.20 SH 85 from MP 296.2 to MP 298.2 1,654 4 3 0 01/01/98 12/31/00 Flatten sideslopes, rumble strips, signing and striping 2.22 $   100,000
4 119 B 46.02 46.12 SH 119 at Jay Road in Boulder County NE of Boulder 48,940 47 30 1 01/01/98 12/31/01 Signals, guardrail, lighting, signing and striping 1.11 $   550,000
4 119 B 54.36 54.44 SH119 at Hover Rd 26,514 59 29 1 01/01/01 12/31/03 Extend NB LTL's 250 feet and SB RT accel lane 1.22 $     75,000
4 138 A 1.85 3.50 SH 138 northeast of Sterling 3,537 6 9 1 01/01/98 12/31/01 Signing, lighting, auxiliary lanes, widen shoulders and improve sight distance 1.23 $   175,000
4 144 A 1.48 13.30 SH 144 from MP 1.48 to MP 13.3 319 6 6 1 01/01/98 12/31/00 Widen shoulders, flatten sideslopes, rumble strips, signing and striping 1.68 $   200,000
4 157 A 2.20 2.26 SH 157 at SH 7 82,680 105 64 0 01/01/99 12/31/03 Additional SB thru lane, extend SB to WB accel lane and raised PED crossing 2.46 $   185,000
4 257 A 6.90 8.03 SH 257 in Weld County South of Windsor 7,263 14 8 0 01/01/98 12/31/01 Shoulder Improvements 1.00 $   150,000
4 257 A 14.50 14.56 SH 257 at Weld County Road 74, north of Windsor 4,034 20 16 1 01/01/01 12/31/03 Install new signal 2.52 $   500,000
4 287 C 331.65 331.70 SH 287 at 19th St 11,951 6 8 0 01/01/02 12/31/03 Install new traffic signal 1.47 $   370,000
4 287 C 335.06 335.16 SH 287 at 29th St. in Loveland 27,670 35 31 0 01/01/98 12/31/02 Signal upgrades with minor geometry changes 1.68 $   375,000
4 287 C 335.73 335.77 SH287 at 37th St 29,757 15 17 0 01/01/01 12/31/03 Signal upgrades and minor geometric improvements 2.39 $   365,000
4 287 C 339.05 341.59 SH287 at Carpenter, Trilby, Skyway and Fossil Creek 27,286 160 91 3 01/01/01 12/31/03 Dilemma zone protection at 4 intersections 3.45 $   165,000
4 287 C 341.00 344.50 SH287 in Ft Collins 38,837 854 256 2 01/01/01 12/31/03 Dilemma zone and lane useage signs 5.37 $   205,000
4 287 C 342.23 342.28 SH 287 at Kensington 37,337 58 16 0 01/01/01 12/31/03 Extend LT lanes, add pole mounted signals, LT phasing for side street, video detection and ped upgrades 2.32 $   120,000
4 287 C 342.31 343.31 SH 287 at Boardwalk 39,884 249 82 1 01/01/01 12/31/03 Extend SB to EB LT lane, add Prot-only phasing, signs, Ped upgrades and EB and WB pole signals 13.51 $   100,000
4 287 C 342.52 342.54 SH287 at Troutman 37,337 51 13 1 01/01/01 12/31/03 Convert NB and SB to Prot only, add pole mounted heads, add lane useage signs 73.94 $     50,000
4 287 C 343.30 343.36 SH287 at Monroe 42,390 98 32 0 01/01/01 12/31/03 Add pole mounted signals, extend left turn lanes, add P+P for side street, upgrade ped heads, install cameras 6.61 $   100,000
4 287 C 343.70 343.75 SH287 at Swallow Rd 42,390 88 16 0 01/01/01 12/31/03 Extend SB LTL 200 feet 2.20 $   150,000
4 287 C 344.15 344.21 SH287 at Drake 42,964 112 29 0 01/01/01 12/31/03 Lane useage signs and remove red-light running cameras 1.08 $     40,000
4 287 C 344.65 344.68 SH287 at Rutgers 44,543 29 4 0 01/01/01 12/31/03 Extend SB right turn lane, add P+P timing, install count-down ped heads and improve ped crossing 1.27 $     50,000
4 287 C 345.18 345.22 SH287 at Prospect 43,884 83 21 0 01/01/01 12/31/03 Install LED's and left turn lane useage signs 2.84 $     50,000
4 287 C 345.33 345.33 SH 287 and Lake St. 48,600 38 6 0 01/01/99 12/31/02 Raised median through intersection (convert to right-in right-out) 4.13 $   190,000
4 287 C 347.70 347.77 SH 287 at Hickory and Conifer 22,004 25 15 0 01/01/01 12/31/03 Widening for an additional left turn lane 1.25 $   385,000
4 287 C 354.71 354.71 SH287 at CR 54G 7,953 3 6 2 01/01/01 08/07/05 Move RT lane over and move stop bar on 54G forward, tree trimming 16.01 $   150,000
4 287 C 370.94 372.50 SH 287 from MP 370.94 to MP 372.5 3,693 6 5 0 01/01/98 12/31/00 Flatten sideslopes, add rumble strips and guardrail 2.41 $   100,000
4 287 C 381.70 384.40 SH 287 south of the Wyoming state line 3,717 10 12 1 01/01/98 12/31/01 Slope flattening, wire safety fence, signing and rockfall mitigation 2.26 $   275,000
4 385 D 259.37 260.75 SH 385 from MP 259.37 to MP 260.75 1,163 1 0 1 01/01/98 12/31/00 Improve signing and striping 7.19 $     50,000
4 392 A 0.00 0.07 SH392 over I-25 18,187 26 13 0 01/01/02 12/31/04 Add left turn lane for WB to SB, radius improvements, realign NB ramps across from one another 1.00 $   175,000
4 392 B 11.53 11.55 SH 392 at Co Rd 31 4,945 3 5 0 01/01/01 12/31/03 Construct left turn lanes on mainline 1.24 $   325,000
4 392 B 13.53 13.63 SH392 at Co Rd 35 5,012 2 4 0 01/01/01 12/31/03 Construct left turn lanes on mainline 1.36 $   200,000
4 392 B 20.98 22.00 SH 392 from MP 20.98 to MP 22 1,303 8 4 1 01/01/98 12/31/00 Widen shoulders and add guardrail 1.09 $   150,000
4 402 A 0.99 1.01 SH 402 at Co Rd 11H 15,136 6 6 0 01/01/01 12/31/03 Construct left turn lanes on mainline 1.36 $   350,000
4 119th St. Intersection of 119th St. and Leon A. Wurl Pwky. in Erie 12,100 18 9 0 04/16/00 11/09/03 Geometric improvements and signalization (changed to Roundabout) 1.17 $   700,000
4 Co Rd 17 and Co Rd 50 County Road 17 and County Road 50 in Larimer County 15,500 15 11 0 02/02/00 09/30/03 Install new signal, modify geometry and dilemma zone protection 1.46 $   108,000
4 CR 9 Boyd Lake Ave. and Eisenhower Blvd. 43,652 32 17 0 01/01/98 01/11/03 Modify EB left turn lane, install LED bulbs 1.82 $   100,000
4 CR32 CR32 at CR9 intersection 10,200 12 7 0 02/11/00 12/14/02 WB left turn lane 1.07 $   206,150
5 141 A 75.32 75.52 Curve Realignment 981 2 7 1 01/01/99 12/31/03 Curve Realignment 2.21 $   700,000
5 160 A 88.29 88.34 SH160 at SH 550 in Durango 23,554 13 10 0 01/01/99 12/31/03 Increase shoulder width, turning radii, advanced warning, timing improvements 1.08 $   300,000
5 160 A 231.80 231.90 Intersection of SH 160 and Victoria St. 19,515 18 6 0 01/01/98 12/31/02 New signal, raised median, geometric improvements 1.13 $   700,000
5 160 A 232.24 233.24 SH 160 at SH 285 19,092 192 40 0 01/01/99 12/31/01 SB double lefts, modify geometry, restrict SB and EB lefts 1.14 $   650,000
5 550 B 105.00 113.00 SH550 near Ridgeway State Park 6,380 54 10 1 01/01/01 12/31/03 Deer gate and double cattle guard 1.90 $   227,000
6 6 H 291.29 291.31 SH 6 at 48th 20,659 25 16 0 01/01/01 12/31/03 Signal upgrades 1.08 $   210,000
6 6 H 292.43 292.53 SH 6 @ 56th Ave 43,096 124 45 0 01/01/01 12/31/03 Upgrade existing span wire trafic signals 2.82 $   400,000
6 7 D 64.06 64.18 SH 7 at Couty Line Road/Flagg Drive 17,506 19 4 1 01/01/99 12/31/03 Install new traffic signals and geometric improvements 2.00 $   600,000
6 8 A 8.63 8.68 SH 8 at SH 121 43,900 44 28 1 01/01/98 12/31/02 Signal upgrades, protected only for NB lefts 3.22 $   225,000
6 25 A 222.37 223.37 I-25 at SH 128 SB on-ramp 94,160 134 43 1 01/01/01 12/31/03 Install ramp meter 2.10 $   130,000
6 26 A 12.92 14.10 SH26B @ Clay, Zuni, Yuma, Tejon, Pecos, Navajo, Lipan, Jason, I-25 36,054 280 112 0 01/01/96 12/31/98 Upgrade Traffic Signals and Ped Signals 1.42 $ 1,575,000
6 26 B 13.19 13.21 SH 26 at Zuni 33,044 20 4 2 01/01/01 12/31/03 Signal upgrades 1.96 $   208,125
6 26 B 13.44 13.46 SH 26 at Tejon 35,219 35 14 0 01/01/01 12/31/03 Signal upgrades 1.03 $   208,125
6 30 A 0.76 0.76 SH 30 at Popular 50,986 64 24 0 01/01/98 12/31/02 Signal upgrades 1.33 $   185,000
6 30 A 0.91 0.92 SH 30 at Roslyn Street 50,990 39 17 0 01/01/01 12/31/03 Singal upgrades 1.37 $   205,000
6 30 A 2.02 2.02 SH 30 at Akron 46,517 34 33 1 01/01/98 12/31/02 Signal upgrades 1.44 $   185,000
6 30 A 2.53 2.53 SH 30 at Florence 47,972 38 12 1 01/01/98 12/31/02 Signal upgrades 1.63 $   185,000
6 30 A 2.65 2.67 SH 30 at Galena Street 49,472 22 18 0 01/01/01 12/31/03 Signal upgrades 1.24 $   205,000
6 30 A 3.83 3.83 SH 83 at SH 30 (Parker Rd. at Havana) 36,057 114 29 0 01/01/99 12/31/01 NB Accel lane for right turns from SH 83 2.58 $   515,000
6 33 A 1.30 1.58 SH33A @ 18th, 19th, and 20th Streets 6,687 65 19 0 01/01/96 12/31/98 Upgrade Traffic Signals and Ped Signals 1.31 $   300,000
6 36 B 47.00 57.00 SH36 at EB On Ramps 87,794 974 330 4 01/01/01 12/31/03 EB Ramp Metering 10.83 $   450,000
6 36 B 49.71 50.71 SH 36 at 104th Avenue (WB on-ramp) 77,935 66 25 0 01/01/01 12/31/03 Install ramp meter 3.01 $   130,000
6 40 C 289.00 290.50 Colfax at Youngfield 24,903 161 60 0 01/01/01 12/31/03 Signal upgrades and roadway realignment 1.07 $   800,000
6 40 C 290.45 290.54 SH 40 at Quail 37,200 40 18 0 01/01/98 12/31/02 Signal upgrades and left turn lane use signing 1.17 $   180,000
6 40 C 293.39 293.42 Colfax at Newland 30,618 19 11 0 01/01/01 12/31/03 Signal upgrades 1.54 $   150,000
6 40 C 297.68 298.00 SH40C @ 12th St, Tremont, Delaware, Cherokee, Bannock 32,295 109 28 0 01/01/96 12/31/98 Upgrade Traffic Signals and Ped Signals 1.11 $   500,000
6 40 C 297.69 297.72 SH 40 at Glenarm/Fox 27,966 21 6 1 01/01/98 12/31/02 Signal upgrades 1.27 $   185,000
6 40 C 299.63 299.70 SH 40 at Josephine 29,721 84 18 0 01/01/98 12/31/02 Signal upgrades 1.12 $   185,000
6 40 C 300.59 301.96 SH40C @ Colorado, Cherry, Elm, Glencoe, Hudson,Ivy, Krameria 29,072 241 88 0 01/01/96 12/31/98 Upgrade Traffic Signals and Ped Signals 1.42 $   900,000
6 40 C 301.89 301.96 SH 40 at Krameria 27,543 48 32 0 01/01/98 12/31/02 Signal upgrades 1.44 $   185,000
6 70 A 258.72 264.46 I-70 between SH 40 and SH 58 77,471 433 140 4 01/01/01 12/31/03 Cable Median Barrier 4.92 $ 1,300,000
6 72 A 0.23 0.33 SH 72 at 48th Ave 35,382 10 5 1 01/01/01 12/31/03 Upgrade existing span wire signals 1.52 $   400,000
6 72 A 10.60 10.70 SH 72 at SH 93 4,747 18 7 1 01/01/01 12/31/03 Upgrade existing span wire trafic signals and improve channelization 1.64 $   400,000
6 76 A 1.75 5.78 I-76 from Sheridan to I-25 43,699 419 253 7 01/01/99 12/31/03 Cable Median Barrier 13.85 $   800,000
6 76 A 5.00 8.00 I-76 between 74th Ave and I-25 (WB) 59,307 132 47 2 01/01/01 12/31/03 Install VMS 1.48 $   250,000
6 76 A 11.34 11.78 I-76 and 96th Ave Interchange 36,764 26 19 0 01/01/01 12/31/03 Roundabouts at ramp intersections 1.32 $ 2,000,000
6 76 A 16.13 22.41 I-76 between Burlington Canal and Bromley lane 19,591 123 34 2 01/01/01 12/31/03 Install median cable guard rail 2.82 $ 1,400,000
6 83 A 3.83 3.83 SH 83 at SH 30 (Parker Rd. at Havana) 36,057 114 29 0 01/01/99 12/31/01 NB Accel lane for right turns from SH 83 3.59 $   370,000
6 83 A 69.39 70.57 Parker Rd from LeHigh to 225 65,445 463 184 3 01/01/00 12/31/04 Median Barrier 2.00 $ 1,300,000
6 85 C 227.27 227.40 SH 85 at 104th 27,503 91 49 0 01/01/98 12/31/02 Signal upgrades, luminares, curb and sidewalk work, dilemma zone 1.64 $   450,000
6 93 A 7.57 11.78 SH 93 between MP 7.57 and MP 11.78 18,376 94 53 2 01/01/01 12/31/03 VMS and road closure gate  1.34 $   190,000
6 95 A 2.46 2.56 SH 95 at Florida 33,268 54 20 0 01/01/98 12/31/02 Signal upgrades 1.10 $   185,000
6 95 A 7.04 7.05 SH 95 at 26th Avenue 37,342 21 15 0 01/01/01 12/31/03 Signal upgrades 1.02 $   206,667
6 95 A 9.54 10.11 SH 95 between 52nd Ave and 56th Ave 39,098 119 78 0 01/01/01 12/31/03 Contruct median  1.39 $   500,000
6 95 A 10.06 10.16 SH 95 @ 56th Ave/Ralston Rd 44,831 45 25 0 01/01/01 12/31/03 Upgrade existing span wire signals 1.44 $   400,000
6 121 A 1.17 2.17 SH 121 at Chatfield Ave 26,291 28 19 0 01/01/01 12/31/03 Upgrade existing span wire traffic signals 1.11 $   400,000
6 121 A 4.89 4.98 SH 121 at Crestline 53,378 103 51 0 01/01/98 12/31/02 Signal upgrades, luminares, curb and sidewalk work, dilemma zone 1.95 $   400,000
6 121 A 5.30 5.41 SH 121 at Belleview 53,378 121 39 0 01/01/98 12/31/02 Signal upgrades, luminares, curb and sidewalk work, dilemma zone 1.75 $   400,000
6 121 A 5.76 5.86 SH 121 at Layton Ave 53,089 46 33 0 01/01/01 12/31/03 Upgrade existing span wire traffic signals 1.74 $   400,000
6 121 A 12.27 12.38 SH 121 at 5th 62,092 131 26 1 01/01/98 12/31/02 Signal upgrades, countdown ped timers, new lane signage 2.98 $   320,000
6 121 A 17.10 17.20 SH 121 at 52nd 54,949 161 30 0 01/01/98 12/31/02 Signal upgrades, luminares, curb and sidewalk work, dilemma zone 1.43 $   470,000
6 121 A 17.26 17.35 SH 121 at 53rd 45,739 92 27 1 01/01/98 12/31/02 Signal upgrades, luminares, curb and sidewalk work, dilemma zone 1.96 $   400,000
6 128 B 12.17 12.27 SH 128 at SH 287 (120th Ave at Federal Blvd) 37,726 32 21 0 01/01/01 12/31/03 Upgrade existing span wire signals 1.26 $   400,000
6 177 A 0.07 0.15 University Ave at County Line Rd 37,520 95 52 0 01/01/01 12/31/03 Upgrade existing span wire trafic signals 2.98 $   400,000
6 177 A 1.95 2.05 SH 177 at Arapahoe 38,490 118 30 0 01/01/98 12/31/02 Signal upgrades, luminares, curb and sidewalk work, dilemma zone 1.55 $   380,000
6 270 A 2.36 4.57 I-270 from Vasquez to Quebec 55,520 97 61 2 01/01/01 12/31/03 Brifen Median Rail 8.72 $   500,000
6 285 D 257.69 258.06 SH 285 SB (WB) from Federal to Lowell Blvd 65,700 233 52 0 01/01/00 12/31/04 Queue Detection System with Blankout Warning Signs for SB (WB) RE Accidents 2.08 $   250,000
6 285 D 258.49 258.69 SH 285 at Brady Court 64,551 99 30 0 01/01/01 12/31/03 Upgrade existing span wire traffic signals 1.85 $   400,000
6 285 D 260.25 260.35 SH 285 at Sherman Street 59,914 46 22 0 01/01/01 12/31/03 Upgrade existing span wire signals 1.29 $   400,000
6 285 D 263.61 263.68 SH 285 at Holly 59,274 43 17 0 01/01/01 12/31/03 Signal upgrades 1.51 $   205,000
6 287 C 285.24 285.25 SH 287 at 44th 34,280 35 20 1 01/01/01 12/31/03 Signal upgrades 3.06 $   208,333
6 287 C 289.71 289.81 SH 287 at 80th 37,772 95 26 1 01/01/98 12/31/02 Signal upgrades, luminares, curb and sidewalk work, dilemma zone 1.32 $   350,000
6 391 A 0.17 0.19 Kipling at Girton 39,681 30 9 1 01/01/01 12/31/03 Signal upgrades 2.41 $   300,000
6 391 A 2.04 2.14 SH 391 at Jewell 57,600 79 23 0 01/01/98 12/31/02 Signal upgrades and left turn lane use signing 1.64 $   240,000
6 391 A 2.65 2.75 SH 391 at Florida 54,300 43 20 0 01/01/98 12/31/02 Signal upgrades, protected only for NB and SB lefts 2.41 $   305,000
6 391 A 5.34