Compare two results

Relevant Risks to this Type of Project

#projects #Risks type delivery method size
34 2877 All All 500 M - 1 B
Number Risk Frequency Prob Cost Schedule
1 construction and utility costs 100 0.53 20.96 0.72
2 change orders 100 0.66 3.27 0.77
3 change in design during construction 70.59 0.58 2.87 0.30
4 additional right of way required 70.59 0.43 27.71 1.73
5 higher real estate cost due to development, annexation, rezoning or other changes to currently vacant land that could greatly increase value 64.71 0.23 0.59 1.00
6 different site conditions 64.71 0.31 2.39 0.25
7 changes to architectural, css, landscape design 61.76 0.58 1.13 0.30
8 right of way 55.88 0.61 6.59
9 changes to design standards 55.88 0.21 1.85 0.69
10 right of way acquisition 52.94 0.47 8.61 1.27
11 design changes on bridge or overpass 50.00 0.27 1.55 -2.30
12 permits or agency actions delayed or take longer than expected 50.00 0.13
0.28
13 permit work windows 50.00 0.21
0.62
14 additional preconstruction costs (administration and design extended overheads) due to schedule delays 47.06 0.50 29.58 2.00
15 construction noise 47.06 0.39 0.38 1.00
16 changes in alignment 44.12 0.31 2.25 0.00
17 weather delays 41.18 0.45 0.20 1.99
18 encounter significant archaeological resources 41.18 0.06 0.36 0.16
19 maintenance of traffic 41.18 0.35 1.37 1.42
20 delays during the request for proposal process 41.18 0.50 0.08 1.58
21 delay in acquisition due to design change 38.24 0.33 153.00 1.20
22 adaptive management of (natural environment) mitigation 38.24 0.14
0.18
23 reduction in bridge superstructure depth using fibs 38.24 0.71 -2.40 2.00
24 coordination issues 35.29


25 bridge - changing geotechnical conditions (due to new information) on 8 35.29 0.43 7.86 1.38
26 increase cost for mitigation 35.29 0.65 1.39 3.00
27 delays in utility relocation 35.29 0.13
0.60
28 delays in utility agreements 35.29 0.05
0.03
29 approval for design exceptions - conceptual design - need to submit to fhwa - have had initial discussions 32.35 0.08 1.00 0.20
30 additional sound walls required 32.35 0.20 1.60 2.00
31 design coordination / approvals with other agencies affected by or affecting this project 32.35 0.12
0.58
32 difference in economic conditions compared to revenue forecast assumptions for project opening (below) there may be lower traffic volumes 32.35 0.67

33 design changes impact construction costs and schedule 32.35 0.10 0.08 0.30
34 additional construction easements formerly labeled r-4 32.35 0.50 0.38
35 utility coordination 32.35 0.58
3.10
36 contractor bid price adjustments related to market conditions 32.35 0.40 2.83 2.00
37 change in configuration of one or more interchange 29.41


38 finding new sinkholes in geotech investigation (for section 7a) 29.41 0.08 0.67 1.00
39 determination of secondary impacts to wetlands (for section 8) 29.41 0.08 1.01 0.86
40 utility relocation may not happen on time 29.41 0.23 1.00 1.98
41 unanticipated contaminated or hazardous materials discovered during construction (other than captured separately) 29.41 0.35 0.75 0.14
42 design review delays project schedule 29.41 0.17
0.43
43 changes in design during design 29.41 0.73 -12.20
44 additional refinements to floating bridge design require more wind/wave analysis (construction impact) 29.41 0.41 1.35 0.00
45 change in environmental regulations 29.41 0.33 0.08 0.35
46 changes in tolling locations 29.41 0.46 0.55 0.19
47 erosion control 26.47 0.33 0.79
48 relic sinkhole issues (for section 7a) 26.47 0.21 0.82 0.96
49 changing assumptions on technical issues 26.47 0.38
0.20
50 buried man-made objects and unidentified hazardous materials found in construction 26.47 0.38

51 pressure to deliver project on an accelerated schedule 26.47 0.56 7.50 -3.00
52 connections between segments (for section 7a) 26.47 0.38 1.24 1.00
53 changing geotechnical conditions 26.47 0.30 0.77
54 change to design assumptions for retaining walls 26.47 0.30 1.35
55 delay of funding 26.47 0.04
1.82
56 delays to finish of feis from programmatic enviromental delays 26.47 0.36
0.28
57 section 4(f) resources affected 23.53 0.40

58 design quality control - dbc task 23.53


59 delay in right of way document internal approval process 23.53 0.05
0.04
60 enhancement requests 23.53 0.21 0.25
61 hazardous materials 23.53 0.24 0.01 0.47
62 additional aquatic mitigation resources are required beyond those specified elsewhere 23.53 0.68 0.01 0.07
63 favorable market conditions there may be developer refinances 23.53 0.50 3.50
64 endangered species discovered there may be environmental delays 23.53 0.52
3.08
65 incident management 23.53


66 negative community impacts cause delays 23.53 0.28
1.18
67 environmental compliance - known permit conditions/restrictions - unexpected permit conditions 23.53 0.22 1.00 0.25
68 risk of acquiring additional access 23.53 0.17 0.20
69 federal highway administration approval 23.53 0.43 108.00 1.05
70 subgrade issues- muck 23.53 0.33 0.72
71 work restrictions 23.53


72 risk that there are issues with pontoons after they are accepted from gray's harbor. 20.59 0.31 0.45 0.77
73 additional third party agreements and/or mitigation (other than addressed separately) 20.59 0.38 5.47
74 noise wall is increased in size 20.59 0.19 0.35 0.00
75 contract delay / change in scope due to project staging conflicts 20.59 0.33
1.18
76 pepco utility transmission 20.59 0.43 0.95
77 safety issues 20.59 0.10 0.20
78 matenance during construction 20.59 0.55 0.00 0.20
79 expedite geotechnical investigation 20.59 0.30 1.50 0.00
80 replacement of existing culverts 20.59 0.80 2.40
81 issues gaining city of seattle and city of medina street use permit 20.59


82 replacement strategy decision for ammo road and miramar way oc. 20.59


83 right of way change due to base concept design change 20.59 0.30 55.00
84 consultant contract authority exceeded before design is complete 20.59 0.25 0.05
85 threat of lawsuits 20.59 0.40
2.60
86 outstanding task orders 20.59


87 excavation operation 20.59 0.1775 0.05 0.94
88 structural steel 20.59 0.75 0.00
89 condemnation takeslonger than expected (for section 1a) 20.59 0.107142857142857
0.235714285714286
90 tunnel cross-section immersed tube tunnel (itt) vs. bored tunnel 20.59 0.25 5.00
91 identify potential staging areas and dry dock availability 20.59


92 changes in structure and embankment 20.59 0.175

93 additional ground improvement might be required 20.59 0.165
0.37695
94 changes in profile 20.59 0.345 1.00
95 change in critical staffing during the project 20.59


96 late issue in design discovered, requiring more time to finalize design (for section 7b) 20.59 0.114285714285714 1.00 1
97 cost premium associated with availability of labor 20.59


98 new storm water rule - water quantity and quality issues 20.59 0.2 0.75
99 maintaining local access 20.59 0.85

100 wetland and aquatic habitat mitigation different than assumed 20.59


Export Results