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Relevant Risks to this Type of Project

#projects #Risks type delivery method size
70 5637 All All All
Number Risk Frequency Prob Cost Schedule
1 additional right of way required 100.0 0.41 4.55 1.93
2 Utility Cost, Cooperation from utility owners for both reimbursable and non-reimbursable utility relocation. 91.4 0.49 13.69 1.39
3 hazardous materials 87.1 0.39 3.43 1.52
4 construction impacts due to lack of right of way and timely utility relocation 78.6 0.41 0.87 2.52
5 right of way Cost 60.0 0.43 1.08 0.34
6 drainage 60.0 0.37 5.32 2.34
7 different site conditions 57.1 0.51 4.55 0.29
8 delay in obtaining permits and approvals 51.4 0.69 0.06 3.62
9 utility relocation may not happen in time 50.0 0.43 6.01 1.23
10 Operations and maintenance during construction 48.6 0.29 8.34 0.63
11 schedule expectations and constraints 42.9 0.58 12.70 2.76
12 design exceptions approvals 41.4 0.55 17.81 4.18
13 contractor access, staging coordination and constructability issues 40.0 0.75 0.63 3.00
14 difficult utility relocations and conflicts 40.0 0.78 -0.30 1.50
15 local agency coordination 38.6 0.67 15.05 1.50
16 environmental mitigation costs 35.7 0.61 0.89 3.00
17 environmental permits 35.7 0.53 0.11 1.26
18 Contract delay, change orders 35.7 0.41 4.45 0.77
19 accurate and timely traveler information during/after construction 35.7


20 Surface condition impacts construction cost and schedule 34.3 0.34 2.69 0.43
21 higher real estate cost due to development, annexation, rezoning or other changes to currently vacant land that could greatly increase value 34.3 0.13 0.60 1.00
22 right of way acquisition 31.4 0.10 3.63
23 market condition 31.4 0.30 10.88 2.78
24 discovery of unknown utilities during construction 30.0 0.47 0.51 0.72
25 delay in agreements 30.0 0.51 0.25 1.81
26 traffic management 28.6 0.44 0.31 3.17
27 construction funding shortfall 28.6 0.29 16.08 2.38
28 noise mitigation 28.6 0.42 26.25 1.26
29 additional mitigation for section 4(f) impacts 27.1 0.30 13.50 2.00
30 changes in design standards and requirements 27.1 0.31 0.21 0.43
31 construction easements 27.1 0.13
0.28
32 permits or agency actions delayed or take longer than expected 27.1 0.21
0.64
33 permit work windows 27.1 0.24 1.10 0.62
34 defer building elliot road traffic interchange ramps 25.7 0.53 1.79 0.50
35 potential delay in obtaining rod (record of decision) 25.7 0.12 0.15 1.15
36 coordination with other agencies 25.7 0.54 1.29 1.86
37 incident management 25.7 0.36 1.46
38 change in law during construction 25.7 0.40 1.71
39 noise walls 25.7 0.40 18.75 10.00
40 additional sound walls required 24.3 0.21 2.21 0.10
41 potential changes to geotechnical design for foundations 22.9 0.13 0.53 0.34
42 environmental regulations change 22.9 0.50 2.36 -3.80
43 changes to architectural, css, landscape design 22.9 0.48 2.57 0.30
44 design review delays project schedule 21.4 0.00 2.83 0.10
45 design oversights may cause additional costs and delays during design, construction and operations phases 21.4 0.36 5.74 0.49
46 changes in alignment 21.4 0.31
1.92
47 market conditions at bid time different than assumed in the base 20.0
0.84
48 funding delay 20.0 0.41 3.33 5.75
49 landscaping and aesthetics cost may be reduced 20.0 0.10 14.60 0.20
50 construction permitting issues (incl. work restrictions) 20.0


51 bridge design refinement 20.0 0.20 2.59 -0.80
52 bridge - changing geotechnical conditions (due to new information) on 8 18.6 0.35 0.35 2.25
53 archeological finding during construction 18.6


54 legal challenges 18.6 0.20 0.00 1.25
55 federal highway administration approval 18.6 0.45 -2.40 2.00
56 contract delay / change in scope due to project staging conflicts 18.6 0.38 7.61 0.23
57 additional traffic control costs 18.6 0.13 10.50 0.03
58 erosion control 18.6 0.30 6.58 1.38
59 cost premium associated with availability of labor 18.6
3.88
60 reduction in bridge superstructure depth using fibs 18.6 0.31 0.88 0.75
61 consistent message even across stakeholders 18.6 0.50 0.61
62 delay in right of way document internal approval process 17.1
1.00
63 railroad agreements 17.1 0.21 4.41 0.45
64 wind studies completed during the design phase are insufficient for all stages of construction (existing bridge removed, new wb bridge in place) 17.1 0.29 9.09 0.43
65 maintaining local access 17.1 1.00 3.42
66 traffic management - baseline solution does not work 17.1 0.01 0.26 1.70
67 encountering unexpected subsurface conditions 17.1 0.01 1.04 0.02
68 barge delivery is cost prohibitive due to barge draft requirements, permit restrictions, archaeological resources, source of construction materials, etc. 17.1 0.44 5.52 0.37
69 access management/ control of access areas 17.1 0.14 0.50 0.49
70 hurricane, earthquake, terrorist attack, war, pandemic 17.1 0.03 0.00
71 delay in acquisition due to design change 15.7 0.30
0.20
72 weather related interruptions to construction 15.7 0.69

73 design changes on bridge or overpass 15.7 0.55 0.20 3.00
74 material availability 15.7 0.50 0.80 0.00
75 additional third party agreements and/or mitigation (other than addressed separately) 15.7 0.20 5.47
76 safety issues delay project opening 15.7 0.59 0.19 3.09
77 materials quality 15.7 0.53 9.00 0.43
78 new storm water rule - water quantity and quality issues 15.7 0.57 36.60 2.70
79 utility conflicts with drainage system 15.7 0.00 2.83 0.00
80 pressure to deliver project on an accelerated schedule 15.7
0.05 0.52
81 political and policy change 15.7 0.32 7.68 0.22
82 tifia (transportation infrastructure finance and innovation act) 15.7 0.27 5.00 4.88
83 adverse weather 15.7 0.06 0.16 0.27
84 changing assumptions on technical issues 15.7 0.21
0.80
85 difference in economic conditions compared to revenue forecast assumptions for project opening (below) there may be lower traffic volumes 15.7 0.60 7.50 -3.00
86 design builder innovation 14.3


87 developers have requested changes to 51st avenue interchange (project scope change) 14.3 0.63 2.70 0.93
88 change to design assumptions for retaining walls 14.3


89 confined space during construction there may be reduced traffic safety conditions 14.3 0.35 0.64 7.20
90 right of way unable to certify the project before advertising 14.3 0.41 22.60 0.80
91 damage to existing structures during construction (bridge, utilities, cemetery, buildings, etc.) 14.3 0.53 1.00 3.08
92 expedite geotechnical investigation 14.3 0.38
1.19
93 pepco utility transmission 14.3 0.43 1.00 3.26
94 labor shortage 14.3 0.37 1.50 0.00
95 endangered species discovered there may be environmental delays 14.3 0.09 5.67 0.01
96 bridge design put into db contract and not taken forward by the project team 14.3 0.10 0.67 1.00
97 interference from other projects 14.3 0.31 0.46
98 weather delays 14.3 0.48 1.38 -1.69
99 stakeholders request changes 14.3 0.65 1.60 2.40
100 interest rate 14.3 0.51 0.00 -4.50

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