25-024 ITB 23230205 - Typicals.pdf

PDF 657 KB Posted Aug 7, 2025

Attached to: ITB 25-024
Solicitation number: 336-ITB 25-024
Issued by: Clinton County, Iowa

About this file

Written by GovTribe AI · Dec 1, 2025

This is a technical specifications document for the Iowa Communications Network (ICN) detailing standard construction details for handhole placement and installation. The document provides construction guidance for the Grimes State Office Building telecommunications infrastructure project located at 400 East 14th Street, Des Moines, Iowa. The specifications outline the standard handhole dimensions of 24 inches by 36 inches by 30 inches and include detailed installation requirements for fiber optic cable, HDPE duct, wire mesh, and associated telecommunications infrastructure. The drawings indicate typical handhole placement with specifications for cable routing, splicing, and locating pedestal installation. The document specifies the use of 3/4-inch crushed rock (excluding pea gravel) as the foundation material and includes requirements for fiber cable taping, coiling around handhole walls, and minimum spacing parameters. All construction must comply with ICN standards and require coordination through One Call (1-800-292-8989 or 811) prior to any excavation or trenching activities to locate buried fiber optic cables and prevent damage to existing infrastructure.

The document reflects revision history spanning from August 2015 through October 2023, indicating ongoing refinement of ICN construction standards. The specifications mandate that construction professionals use these drawings for general information purposes only and maintain compliance with precise ICN placement requirements through direct coordination with ICN representatives. The technical details address critical safety protocols, proper cable management techniques, grounding procedures for locate pedestals using solid bare copper wire, and terminal board configuration within splice enclosures. Contractors must secure locate pedestals by placing them over steel posts and ensure ground wires are bonded to ground rods with six inches of exposure. The document emphasizes the importance of warning buried fiber optic cable locations before any digging or trenching operations occur within the project area.

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Other files

File	Type	Posted
23230205 - Geotechnical Evaluation Report.pdf	PDF	Aug 7, 2025
25-024 ITB 23230205 - Scope of Work (SOW).pdf	PDF	Aug 7, 2025
1331623-event.pdf	PDF	Aug 7, 2025
25-024 ITB OSP Log# 23230205 Clinton Co.pdf	PDF	Aug 7, 2025
25-024 ITB 23230205 - Engineering plans.pdf	PDF	Aug 7, 2025

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37 5/8" 37 5/8"

24"x36"x30" HAND HOLE

1==111==111==1........,...... __ 11-1

. 11 -.--------,---1----'-T---,'

FIBER/

WIRE MESH 12" min. 30"

CABLE

6" 26"

HOPE

DUCT

~CABLE

5-6" TAPE CABLES TOGETHER FIBER

MATCHING LENGTHS CABLE

WHERE POSSIBLE. HOPE DUCT

COIL CABLE AROUND 3/4" CRUSHED ROCK (NO GRAVEL INSIDE HH) WALLS OF HANDHOLE

DO NOT USE PEA GRAVEL OR OTHER ROUND STONE

3" 24" TYPICAL

35 5/8" 5' LOCATE PEDESTAL

STEEL POST MIN.

(U- OR T-POST) ----.

TYPICAL '

s SPLICE MARKER p ~ L I

5' 6" ± C

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26"

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I G

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IOWA COMMUNICATIONS NETWORK 4 REVISION 8-21-15 8 REVISION 7-19-18 THIS DRAWING IS PROVIDED FOR GENERAL CONSTRUCTION DETAIL

5 8-19-16 9 REVISION 11-4-19 INFORMATION ONLY AND IS NOT TO BE USED REVISION

GRIMES STATE OFFICE BUILDING HANDHOLE TYPICAL ICN STANDARD TO DETERMINE PRECISE ICN PLACEMENT. 6 REVISION 8-24-16 10 REVISION 6-30-21 400 EAST 14TH STREET CALL ONE CALL BEFORE EXCAVATION 24" X 36" X 30" 7 REVISION 12-11-17 11 REVISION 10-11-23 DES MOINES, IOWA 50319 (1-B00-292-8989 OR 811) ICNC:, 2014, COPr WITH PERMISSION TYPICAL HANDHOLE SCALE: NONE SIZE: 11 x 17 O:\AutoCAD standards\TYPICALS\TYPICAL-HH PLACEMENT.dwg

HANDHOLE PLACEMENT TYPICAL

24" X 36" X 30" HAND HOLE

AutoCAD SHX Text 24"x36"x30" HAND HOLE

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HDPE DUCT

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CABLE

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SOIL GRADE

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FIBER

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CABLE

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FIBER

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CABLE

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HDPE

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DUCT

AutoCAD SHX Text TAPE CABLES TOGETHER MATCHING LENGTHS WHERE POSSIBLE. COIL CABLE AROUND WALLS OF HANDHOLE

AutoCAD SHX Text

TYPICAL LOCATE PEDESTAL

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TYPICAL SPLICE MARKER

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STEEL POST (U- OR T-POST)

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3/4" CRUSHED ROCK (NO GRAVEL INSIDE HH)

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DO NOT USE PEA GRAVEL OR OTHER ROUND STONE

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WIRE MESH

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SCALE:

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SIZE:

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GRIMES STATE OFFICE BUILDING

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ICN

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, COPY WITH PERMISSION

AutoCAD SHX Text O:\AutoCAD Standards\TYPICALS\TYPICAL-HH PLACEMENT.dwg

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DES MOINES, IOWA 50319

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400 EAST 14TH STREET

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THIS DRAWING IS PROVIDED FOR GENERAL

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INFORMATION ONLY AND IS NOT TO BE USED

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TO DETERMINE PRECISE ICN PLACEMENT.

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CALL ONE CALL BEFORE EXCAVATION

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(1-800-292-8989 OR 811)

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REVISION

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REVISION

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REVISION

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REVISION

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REVISION

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REVISION

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REVISION

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REVISION

AutoCAD SHX Text 8-21-15

AutoCAD SHX Text 8-19-16

AutoCAD SHX Text 8-24-16

AutoCAD SHX Text 12-11-17

AutoCAD SHX Text 7-19-18

AutoCAD SHX Text 11-4-19

AutoCAD SHX Text 6-30-21

AutoCAD SHX Text 10-11-23

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CONSTRUCTION DETAIL

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HANDHOLE TYPICAL - ICN STANDARD

AutoCAD SHX Text 24" x 36" x 30"

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NONE

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TYPICAL HANDHOLE

TERMINAL BOARD

I.C.N. LOCATE WIRES

WAINING

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ANYWHERE IN

THIS AREA

CALL TOLL FREE

1-800-292-8989

MIN. 5'

s p L I C E

IOWA COMMUNICATIONS NETWORK FOR CONSTRUCTION 11-3-14 5 REVISION 5-19-17

THIS DRAWING IS PROVIDED FOR GENERAL CONSTRUCTION DETAIL

UPDATE 3-13-15 USED 2 6 REVISION 10-11-23 INFORMATION ONLY AND IS NOT TO BE

GRIMES STATE OFFICE BUILDING TO DETERMINE PRECISE ICN PLACEMENT. LOCATE PEDESTAL lYPICAL REVISION 8-21-15 7

400 EAST 14TH STREET CALL ONE CALL BEFORE EXCAVATION DES MOINES, IOWA 50319 TRI-VIEW W ISO LEVER 4 REVISION 9-4-15 8 ICN 2014, PERMISSION (1-B0D-292-8989 OR 811) COPY WITH lYPICAL LOCATE PEDESTAL SCALE: NONE SIZE: 11 x 17 O:\AutoCAD standards\TYPICALS\TYP _LOCATE PEDS.dwg

BOND LOCATE WIRES INSIDE

SPLICE ENCLOSURE

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GROUND WIRE BONDED

TO GROUND ROD

GROUND ROD (6" EXPOSED)

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NOTES�

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CABLE COILS NOT SHOWN

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HAND HOLE

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HDPE DUCT

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CABLE

AutoCAD SHX Text

SOIL GRADE

AutoCAD SHX Text

GROUND ROD (6" EXPOSED)

AutoCAD SHX Text

DUCT (ANY)

AutoCAD SHX Text

LOCATE WIRES

AutoCAD SHX Text

GROUND WIRE

AutoCAD SHX Text S P L I C E

AutoCAD SHX Text

STEEL POST

AutoCAD SHX Text

TERMINAL BOARD

AutoCAD SHX Text

3/4" CRUSHED ROCK

AutoCAD SHX Text

BOND LOCATE WIRES INSIDE SPLICE ENCLOSURE

AutoCAD SHX Text

GROUND WIRE BONDED TO GROUND ROD

AutoCAD SHX Text

OUTSIDE DIAMETER MUST

AutoCAD SHX Text

FIT WITHIN PEDESTAL

AutoCAD SHX Text

WITH STEEL POST

AutoCAD SHX Text

SCALE:

AutoCAD SHX Text

SIZE:

AutoCAD SHX Text

GRIMES STATE OFFICE BUILDING

AutoCAD SHX Text

ICN

AutoCAD SHX Text C

AutoCAD SHX Text

, COPY WITH PERMISSION

AutoCAD SHX Text O:\AutoCAD Standards\TYPICALS\TYP_LOCATE PEDS.dwg

AutoCAD SHX Text

DES MOINES, IOWA 50319

AutoCAD SHX Text

400 EAST 14TH STREET

AutoCAD SHX Text

THIS DRAWING IS PROVIDED FOR GENERAL

AutoCAD SHX Text

INFORMATION ONLY AND IS NOT TO BE USED

AutoCAD SHX Text

TO DETERMINE PRECISE ICN PLACEMENT.

AutoCAD SHX Text

CALL ONE CALL BEFORE EXCAVATION

AutoCAD SHX Text

(1-800-292-8989 OR 811)

AutoCAD SHX Text

FOR CONSTRUCTION

AutoCAD SHX Text

UPDATE

AutoCAD SHX Text

REVISION

AutoCAD SHX Text

REVISION

AutoCAD SHX Text

REVISION

AutoCAD SHX Text

REVISION

AutoCAD SHX Text 11-3-14

AutoCAD SHX Text 3-13-15

AutoCAD SHX Text 8-21-15

AutoCAD SHX Text 9-4-15

AutoCAD SHX Text 5-19-17

AutoCAD SHX Text 10-11-23

AutoCAD SHX Text

CONSTRUCTION DETAIL

AutoCAD SHX Text

LOCATE PEDESTAL TYPICAL

AutoCAD SHX Text

TRI-VIEW W/ISO LEVER

AutoCAD SHX Text

NONE

AutoCAD SHX Text 11 x 17

AutoCAD SHX Text

TYPICAL LOCATE PEDESTAL

Sheets and Views

HH TYP STANDARD_polymer concrete

TYP_LOCATE PEDS-TRIVIEW.pdf

Sheets and Views

TRIVIEW

File details come from the government source that posted it. Updated Dec 1, 2025.