3-Estimated Bore Hole Diameter Std.Dwg 100140.pdf
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- Solicitation number
- 26-275
- Issued by
- Washington County, Utah
About this file
This is a standard engineering drawing document prepared by the City of St. George Engineering Department detailing specifications for a horizontal directional drill (HDD) bore hole installation beneath Interstate 15 at the 400 East crossing. The drawing specifies an anticipated 12-inch diameter borehole with an 11-inch diameter comparison reference, and details the installation of three 3-inch conduits with 3.5-inch outside diameter schedule 40 or IPS 13.5 HDPE continuous conduit per SGES standards or approved equal. The technical specifications include precise measurements for conduit placement, curb and gutter details (Type HB30-7 and HB30-8), concrete sidewalk configurations, and standard road cross-sections. All concrete is required to be Class "A" material. The drawing establishes the bore alignment and profile parameters that contractors must follow without deviation unless prior written approval is obtained from the City.
The specifications establish engineering standards and constraints that bidders must comply with when submitting proposals for the guided horizontal directional drill project. The work involves installing underground power conduits to replace existing overhead distribution facilities, requiring contractors to maintain strict adherence to the stamped plans regarding elevations and offsets. Bidders are required to submit a bid bond equal to 5 percent of the bid amount, issued by a surety company licensed in Utah and acceptable to the City of St. George. A 100 percent performance bond covering labor and materials will be required upon contract award. These technical and bonding requirements establish the baseline for contractor qualification and project execution standards.
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Text version
weston.nelson Engineer
(7) 3" CONDUITS (3.5" O.D.) SCHEDULE 40 OR IPS 13.5 HDPE CONTINUOUS CONDUIT PER SGES STANDARDS, OR APPROVED EQUAL weston.nelson Length Measurement 1'-0" weston.nelson Length Measurement 0'-3 1/2" weston.nelson Engineer
ANTICIPATED 12" DIAMETER BOREHOLE
weston.nelson Engineer
11" DIAMETER COMPARISON
weston.nelson Engineer
ANTICIPATED BOREHOLE DIAMETER
DATE
VI I
RIPTI N
1-------30"--------1
-6', R= 1/2" r J 1\ 4]/2"
14" j" \1I1281 /2~" ====:::::::~I i
Y
_ -1-3/8" '\7'\7~:j'\7'\7''\7 '\7 --+ L I~R=1/2" \i' '\7 6'
L==::::::::============l ~/2" 1-7-3/8" -1----22-5/8" -----'
STANDARD CURB & GUTTER
(TYPE HB30-7)
NOTES:
1. ALL CONCRETE SHALL BE
CLASS "A".
r== 30"
8' R=2S"
STANDARD CURB & GUTTER
(TYPE HB30-8)
CITY OF ST. GEORGE FNGINEERING DEPARTMENT
STANDARD CURB & GUTTER
DETAILS
ANA W.N.
100 110F1
APPROVED:
DATE: BY: LBB
weston.nelson Rectangle
OAT
I Fl.
r---------------------------------~A}-----------------------------------, r CONCRETE SIDEWALK r----{ID r----.-~2.s··---,-----<·c r---r..Lr-lf-® ® C0 HOT MIX A~HALT~
\ T _\ r (MIN.) l \ -~~o~jo~====~~~~~~·~·~~o~~o~~==~~::~:2:%:::§~==~~t~,~·~-,~~G·it·~·~~====~~
1 l §oolo,\O 1 j <lo'
0 ~ \__UNTREATED ROAD
MARK
A
B c D
E(MIN)
F
G H
BASE GRAVEL
MC-70 PRIME
COAT REQUIRED
UNTREATED ROAD '-._CONCRETE CURB
BASE GRAVEL & GUTTER (NOT TO SCALE)
DIMENSIONS
LOCAL COLLECTOR
MAJOR
COLLECTOR
50' 60' 66'
1' o' 0.5'
4' 5' 5'
17.5' 22.5' 25'
2.5" 3" 3"
SEE STANDARD SPECIFICATIONS
4" FOR SIDEWALK, 6" FOR DRIVEWAY APRONS
4" UNDER SIDEWALKS, 6" UNDER DRIVEWAYS
ARTERIAL
80'
0'
5'+
32.5' 3.5"
MAJOR
ARTERIAL
>80'
VARIES
6'+
>32.5
4"
NOTES:
VI
Rl Tl N BY
1- MAXIMUM ALLOWABLE DIFFERENCE IN CURB ELEVATION SHALL BE 12
INCHES AND MUST HAVE CITY ENGINEER APPROVAL PRIOR TO ITS USE.
2- FOR ROADS IN OR SERVING INDUSTRIAL AREAS, ASPHALT AND BASE
THICKNESS SHALL BE INCREASED ACCORDING TO PROVISIONS FOR
HEAVY TRUCK TRAFFIC.
3- MINIMUM ASPHALT THICKNESS IS SHOWN. THICKNESS SHALL BE BASED
UPON ACTUAL ENGINEERING ANALYSIS, BUT IN NO CASE SHALL IT BE
LESS THAN THE MINIMUM.
CITY OF ST. GEORGE ENGINEERING DEPARTMENT
STANDARD ROAD CROSS SECTIONS
AN A . N .
14D I10F1
APPROVED:
DATE: I BY: LBB
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