attachment_1_bid_306_24.pdf

PDF 159 KB Posted Jun 28, 2024

Attached to: Concrete Barriers
Solicitation number: Bid 306-24
Issued by: Rockingham County, Sanbornville CDP, New Hampshire

About this file

Written by GovTribe AI · Jun 28, 2024

This document is a technical drawing and specifications for a single slope precast double-faced concrete barrier, Standard No. GR-19, used in state and local infrastructure projects. The barrier is designed to meet NCHRP Report 350 TL-4 requirements and includes details on the reinforcement, materials, construction, and dimensions. The drawing provides a plan view, elevation, and cross-section of the barrier, as well as a structural reinforcement schedule. Key specifications include a minimum 28-day compressive strength of 4,000 PSI, epoxy-coated reinforcing steel, galvanized I-beams and structural tubes, and smooth uniform surface finishes. This standard drawing would be referenced in state and local roadway and infrastructure construction projects where these concrete barriers are required.

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GUARDRAIL STANDARD

GR-19

06-16-2010

5'-0"10'-0"

20'-0"

(TYP.)

4" 8" 8"

1'-0"

@ 4" =

3 SP.

@ 6" = 2'-0"

4 SPACES

1'-0"

@ 4" =

3 SP.

@ 6" = 2'-0"

4 SPACES12 SPACES @ 12" = 12'-0"

(TYP.)

#4 STIRRUP BAR

(5 NS & 5 FS)

#4 LONGITUDINAL BARS

(TYP.)

#6 LOOP BAR

(TYP.)

#6 LOOP BAR (TYP.)

#4 STIRRUP BAR

(TOP)

#4 LONGITUDINAL BARS

(BOTTOM)

#4 LONGITUDINAL BARS

(TYP.)

†" Â STUD

(TYP.)

†" Â STUD

CONNECTION DETAIL

SEE BARRIER

5'-0"

(TYP.)

LIFTING SLOT

(TYP.)

LIFTING SLOT

ELEVATION

PLAN

(TYP.)

†" Â STUD

(TYP.)

HSS 4 x 2 x Š S 3 x 7.5

BARRIER CONNECTION DETAIL

(TYP.)

2•" CLEAR

#6 LOOP BAR

P A

C E

E A

C H

C E

L O

N G I

T U

D I

R S

#4 STIRRUP

2•"

SECTION A-A (REINFORCEMENT)

FRONT SIDE FRONTSIDE

†" SLOT

TOP

(TYP.)

†" Â STUD 8" LONG

S 3 x 7.5

(TYP.)

1…" CENTER-To-CENTER

(TYP.)

1‚"

(TYP.)

•" Â HOLES

(TYP.)

Ž"

HSS 4 x 2 x Š

STRUCTURAL TUBE DETAILS I-BEAM DETAILS

NO.DESCRIPTION SIZE

STIRRUPS #4

LOOP BAR #6 2

#4 10

3'-3"

#4 STIRRUP BAR

" 2

6•"

1'-3"

7'-11"

8'-11"

19'-8"

6•"

L = 8"

2‡" R

60° (TYP.)

#6 LOOP BAR (TOP VIEW)

S 3 x 7.5

(SEE STANDARD NO. DL-1)

MEDIAN BARRIER DELINEATOR

ITEM 621.1 - RETROREFLECTIVE

PERSPECTIVE VIEW

9†"

THE PAVEMENT

BELOW THE SURFACE OF

MINIMUM OF 3" EMBEDMENT

COURSE

WEARING

COURSE

BINDER

(TYP.)

7‰"

(TYP.)

1" RADIUS

(SEE STRUCTURAL TUBE DETAILS)

HSS 4 x 2 x Š

(TYP.)

(LEVEL)

2'-0"

(TYP.)

(EACH FACE)

LONGITUDINAL

LENGTH

UNBENT

CONCRETE BARRIER REINFORCING SCHEDULE

2. I-BEAMS AND STRUCTURAL TUBES SHALL BE GALVANIZED AFTER FABRICATION.

3. STUD WELDING SHALL BE IN ACCORDANCE WITH ITEM 547.

GENERAL NOTES

REQUIREMENTS OF NCHRP REPORT 350, TL 4.

1. THE CONCRETE BARRIER DETAILS, AS SHOWN ON THIS SHEET, ARE IN COMPLIANCE WITH THE

4. SHOP DRAWINGS, SHALL INCLUDE REINFORCING SCHEDULE.

REINFORCEMENT SHOWN IS THE MINIMUM REQUIRED.

2. ALL REINFORCING STEEL SHALL BE AASHTO M31 (ASTM-A615) GRADE 60, EPOXY COATED.

MATERIAL NOTES

3. EACH BARRIER UNIT SHALL INCLUDE ONE S 3 x 7.5 AS SHOWN ON THIS PLAN SHEET.

B A

R R I

E R

6" (TYP.)

1" (TYP.)

2" R (TYP.)

9" (TYP.)

4" (TYP.)

(TYPICAL ON TANGENT)

‚" OPEN JOINT

TYPE

EXPOSED EDGES OF CONCRETE SHALL BE CHAMFERED ƒ", UNLESS NOTED OTHERWISE.

FREE OF DEFECTS AND IRREGULARITIES. CASTING DATE SHALL BE SHOWN ON BARRIER. ALL

COMPRESSION STRENGTH OF 4,000 PSI. BARRIERS SHALL HAVE A SMOOTH UNIFORM SURFACE

1. THE BARRIERS SHALL BE LIGHT COLORED CLASS "AA" CONCRETE HAVING A MINIMUM 28 DAY

2" DEEP MAX.

EXCAVATABLE

FLOWABLE FILL,

CONCRETE CLASS F,

5. LEVELING PADS OR SHIMMING MATERIAL SHALL BE SUBSIDIARY TO THE BARRIER ITEM.

UNIFORM SURFACE MEETING A SURFACE ROUGHNESS OF 1000 MICROINCHES OR BETTER (ANSI B46.1).

4. SLOTS IN STRUCTURAL TUBES SHALL BE CUT WITH MECHANICALLY GUIDED MEANS TO A SMOOTH, SINGLE SLOPE

PRECAST DOUBLE-FACED

CONCRETE BARRIER

11-05-2010

5. PAID FOR UNDER APPROPRIATE 606 ITEMS, OR AS SHOWN ON PLANS.

SINGLE SLOPE

PRECAST DOUBLE-FACED

CONCRETE BARRIER

END VIEW (MASONRY)

04-03-2014

2•" I.R. (TYP.)

S T

A N

D A

R D P

L A

N S

STANDARD

NO.

STANDARD

REVISION DATE

*.DGN FILE NAME

RFB 306-24: Attachment 1

File details come from the government source that posted it. Updated Jun 28, 2024.