1. Interstate 15 North Phase 4 Cost Estimates 09/03/2015

2. I-15 North Phase 4 – Cost Estimates
Summary of Alternative 1 and 2 Costs
I-15 NORTH PHASE PRELIMINARY COST ESTIMATE
ITEM
ALTERNATIVE 1
ALTERNATIVE 2
ALT 1 - ALT 2
ROADWAY
$ ,008,300.00
$ ,118,595.00
(110,295)
STRUCTURES
$ ,896,655.00
$ ,463,600.00
10,433,055
TRAFFIC
$ ,491,000.00
$ ,435,000.00
56,000
UTILITIES
$ ,400.00
$ ,650.00
(410,250)
DRAINAGE
$ ,669,405.00
$ ,968,380.00
(298,975)
LANDSCAPE/AESTHETICS
$ ,127,223.00
$ ,737,137.00
390,086
EROSION CONTROL
$ ,204.00
$ ,857.00
48,347
MOBILIZATION
$ ,552,244.00
$ ,851,686.00
700,558
SUBTOTAL CONSTRUCTION
$ ,889,187.00
$ ,881,219.00
10,007,968
CONTINGENGY
$ ,577,837.40
$ ,576,243.80
2,001,594
TOTAL CONSTRUCTION COST
$ ,020,000.00
$ ,310,000.00
12,710,000
RIGHT-OF-WAY COST
$ ,683,280.00
$ ,132,960.00
550,320
TOTAL COST
$ ,703,280.00
$ ,442,960.00
13,260,320

3. I-15 North Phase 4 – Cost Estimates
Cost Estimation Wizard

4. I-15 North Phase 4 – Cost Estimates
Discussion of Items of Work
Clearing and Removals
Retaining Walls
Traffic Items
Utilities
Drainage

5. I-15 North Phase 4 – Cost Estimates
Clearing and Removals:
$2,000, Lump Sum (~1.5%)
Existing Roadway - 665,000 sf
Traffic Signals - 2 each
Overhead Signs - 3 each
Signage (ground mounted)
Street Lights
Barrier Rail
Metal Beam Guardrail
Curb Gutter and Sidewalk (Centennial Parkway)
Driveway Connections (Range Road)
Clearing and Grubbing
Fencing and Misc.

6. I-15 North Phase 4 – Cost Estimates
Retaining Walls – Unit Costs
COST VS. HEIGHT SUMMARY
Height (FT)
Unit Cost 12
$24.00 15
$30.00 16
$32.00 20
$40.00 22
$48.00 34
$68.00 45
$90.00 53
$106.00 61
$122.00 65
$130.00

7. I-15 North Phase 4 – Cost Estimates
Retaining Walls – Cost Break Out
I-15 NORTH PHASE 4 - RETAINING WALLS
LOCATION
ALTERNATIVE 1
ALTERNATIVE 2
Alignment
Description
Length (ft)
Hmax (ft)
Area (SF)
Unit Cost
Cost
"NW" (RT)
Approach to UPRR Overcrossing
347 53
18391 $
$ ,949,446.00
318
16854
$ ,786,524.00
Approach to Centennial Parkway crossing - 95 34
3230 $
$ ,640.00
"CP-R3" (LT)
Past UPPR on 215EB
980 15
14700 $
$ ,000.00
"R1" (RT)
UPRR to Tropical Pkwy.
1119 61
68259 $
$ ,327,598.00
1116 65
72540 $
$ ,430,200.00
"EN" (RT)
CC215 east of UPRR
275 16
4400 $
$ ,800.00
Approach to one-way frontage Rd.
116 22
2552 $
$ ,496.00
"ES" (RT)
191 45
8595 $
$ ,550.00
"ES" (LT)
Past one-way frontage Rd. 38 20
760 $
$ ,400.00
"SW" (LT)
Approach to Tropical Pkwy crossing 80 12
960 $
$ ,040.00
"SW" (RT)
Past Tropical Pkwy crossing 70
2380
$ ,840.00
Total
$ 11,344,290
$ 12,062,244

8. I-15 North Phase 4 – Cost Estimates
Traffic Items
Striping: Length in miles from Conceptual Plans
Per mile cost based on estimated number of raised pavement markers and painted striping
Signing: Estimated 10 Overhead Signs
Traffic Signals: 4 “T” intersections at $350k each
2 Full intersections at $500k each
Lighting: Estimated number high mast lights and street lights for
each alternative.
ITS: Minimum ITS improvements. Two changeable message signs
on CC 215 and 4 CCTV Cameras for interchange.
Traffic Control: 3 Year construction duration in low congestion area

9. I-15 North Phase 4 – Cost Estimates
Utilities Items
Utility relocation costs based on an evaluation of utility conflicts identified on the conceptual plans.
I-15 North Phase 4 Alternative 2 Utility Relocation Cost Estimate
Location
Utility
Quantity
Unit of Measurement
Unit Price
Preliminary Cost
CC215/Range Road
Relocate 8" Water Line within CC215 and Centennial Parkway R/W
330 LF
$150.00
$49,500.00
Relocate (2) 4" Electric within CC215 and Centennial Parkway R/W
220
$33,000.00
Relocate (2) 4" Telephone within CC215 and Centennial Parkway R/W
Relocate 4" Gas within CC215 and Centennial Parkway R/W
325
$48,750.00
Relocate 24" Water Line within Centennial Parkway R/W
392
$500.00
$196,000.00
Relocate Fire Hydrant within Centennial Parkway R/W 1 EA
$5,000.00
Relocate Fiber Optic within CC215 and Centennial Parkway R/W
250
$200.00
$50,000.00
I-15/CC215 Ramp Crossovers
Upgrade 8" Sanitary sewer line steel encasement
832
$166,400.00
Military Road
Adjust 48" SSMH to grade 2
$2,000.00
$4,000.00
TOTAL
$585,650

10. I-15 North Phase 4 – Cost Estimates
Drainage Items
I-15 Phase-4 Drainage Conceptual Cost Estimates
VTN 8/28/15 CKH
MAJOR (OFFSITE)
ALTERNATIVE 1
ALTERNATIVE 2
ITEM DESCRIPTION
UNIT
UNIT PRICE
QUANTITY
SUBTOTAL
MAJOR REMOVALS
Removal of 6'x3' RCB LF $
215
$ ,200
Removal of 6'x4' RCB $
150
$ ,000
Removal of 10'x3' RCB $
175
$ ,250
Removal of 12'x4' RCB $
350
$ ,000
Removal of Quad 60" RCP Headwall EA
$ ,500.00 1
$ ,500
Removal of 6'X3' RCB Headwall
$ ,000.00 4
$ ,000
Removal of 10'X3' RCB Headwall
$ ,400.00 2
$ ,800
Removal of 12'x4' RCB Headwall
$ ,500.00
$ ,500
Removal of Double 12'x4' RCB Headwall
$ ,000
MAJOR STORM DRAIN
48" Type 1 Manhole
$ ,000.00
$ ,000
$ ,000
60" Type 2 Manhole
$ ,500.00
$ ,500 3
$ ,500
18-Inch RCP Storm Drain Pipe 30
$ ,000
24-Inch RCP Storm Drain Pipe $ 70
$ ,400
740
$ ,800
36-Inch RCP Storm Drain Pipe $
700
$ ,000
955
$ ,800
42-Inch RCP Storm Drain Pipe $
450
$ ,500
490
$ ,700
60-Inch RCP Storm Drain Pipe $
180
$ ,000
470
$ ,000
Rectangular Concrete Channel W=12', D=3.5' $
1,000
$ ,000
Class 150 Riprap Channel W=5', D=4.0', SS=3:1 $
1,010
$ ,600
1,050
$ ,000
Class 300 Riprap Channel W=5', D=3.0', SS=3:1
100
500
$ ,000
Earthen Channel W=5', D=3', SS=3:1 $
475
$ ,125
1,260
$ ,900
Earthen Channel W=14', D=3', SS=3:1 $
560
$ ,680 - $
Earthen Channel W=21', D=2.5', SS=3:1 $
600
$ ,000
6'x4' Reinforced Concrete Box $
1,310
$ ,500
1,520
$ ,000
8'x4' Reinforced Concrete Box $
290
$ ,200
270
$ ,600
12'x4' Recinforced Concrete Box $
$ ,500
24" RCP Headwall $ 6
$ ,100 5
$ ,250
36" RCP Headwall
$ ,475.00 10
$ ,750 8
$ ,800
42" RCP Headwall
$ ,290.00
$ ,580
Quad 60" RCP Headwall
$ ,500.00
$ ,500
6'x4' Type I RCB Headwall
$ ,960.00
$ ,760
$ ,840
8'x4' Type I RCB Headwall
$ ,250.00
$ ,000
12'x4' Type I RCB Headwall
$ ,800.00
$ ,800
Double 12'x4' Type I RCB Headwall
$ ,480.00
$ ,960
Class 300 Riprap Apron 15
$ ,000
$ ,646,705
$ ,005,780
Detailed cost estimate prepared for both alternatives.

11. I-15 North Phase 4 – Cost Estimates
Right-of-way Costs
Bureau of Land Management
Environmental Assessment and Administrative Costs
Alternative 1: $50, (76,327 SF)
Alternative 2: $20, (444 SF)
State of Nevada (National Guard)
Administrative costs to transfer ownership between state agencies
Alternative 1: $20, (21,377 SF)
Alternative 2: $20, (4,045 SF)
Private Properties
Alternative 1: 65,332 SF, 5 owners
Alternative 2: 52,324 SF, 3 owners
Estimated $40.00/SF cost includes administrative and appraisal
costs

12. I-15 North Phase 4 – Cost Estimates
Questions?

13. Project Contact & Questions?
NDOT Project Management Division:
Assistant Chief – Lynnette Russell –
Phone –
Project Manager – Dwayne Wilkinson –
Phone –