construction_details_2026.pdf

PDF 3 MB Posted

Attached to
2026 City of Decatur Church St and Clairemont Ave Quick Build Safety Project
Solicitation number
PE-64458-NONST-2026-000000025
Issued by
Dekalb County, Georgia

About this file

This file contains construction details and technical specifications from the Georgia Department of Transportation for the 2026 City of Decatur Church Street and Clairemont Avenue Quick Build Safety Project. The project is a tactical urbanism implementation initiative designed to deliver accelerated, cost-effective safety improvements to designated roadways in Decatur, Georgia. The construction details document provides standardized specifications for pavement markings, railroad grade crossing signage and warning devices, shared bicycle lane markings, sidewalk and curb cut ramps, detectable warning surfaces, sign posts and mounts, raised pavement markers, and downtown crosswalk speed table details. The specifications include multiple marking types and dimensions for various roadway configurations, ranging from single-lane to two-lane installations, with detailed area measurements and placement guidelines. The document references compliance with the Manual on Uniform Traffic Control Devices (MUTCD) 2009 Edition and includes advance warning sign placement tables and guidelines for railroad crossings with both active and passive traffic control systems.

The specifications detail specific materials and installation requirements, including hot-applied preformed plastic (thermoplastic) for pavement markings applied to both asphalt and concrete pavements. Shared bicycle lane markings are to be placed no greater than every 250 feet, with additional symbols at intersecting roads and 6 feet beyond crosswalks. The document establishes minimum clearance requirements, centerline distances, and preferred placement locations for various markings and signage. All work must comply with current AASHTO guidelines for bicycle facilities and state design policies as established by the Georgia Department of Transportation Chief Engineer and State Design Policy Engineer.

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DEPARTMENT OF TRANSPORTATION

STATE OF GEORGIA

NUMBER(SUBMITTED)

(APPROVED)

DES.

TRA.

CHK.

B Y

R E

V

IS

IO

N D

A T

E

STATE PROJECT NUMBER

GA.

NO.

SHEET

SHEETS

TOTAL

REV.

50’-0"

8’

R R

W

R R W

W

9024A

STANDARD

SEPT., 1982NO SCALE

R.M.U.

G.M.E.

R.K.C.

R .M .U

R .M .U

R .M .U

R .M .U

R .M .U

A D

W

(3

S

IG

N S

U P

D A

T E

O

M .U .T .C .D

A D

D ’L

S

P E

C

C O

N D

R .R

M A

R K

IN

G S

R

L O

C A

T E

D

C O

N D

N O

T E S

1-

1-

(FOR CROSSINGS WITH ACTIVE DEVICES)

T

O P

S T

O P

R 1-

R 1-

W10-2(36)

W10-2(36)

8’

X

20’

20’

ROADWAY PAVEMENT MARKINGS SHALL BE ADDED FOR ALL RAILROAD CROSSING UPGRADES.

Y

IE

L D

R 1-

OR

Y

IE

L D

R 1-

OR

R E

L O

C A

T E

D

R .R

S T

A N

D A

A

R K

IN

G

TYPICAL PAVEMENT MARKINGS

C H

A

.U .T .C .D

R E

V

IS

V A

N C

E

P

L A

C E

M E

N T

R R

W

W

W

R R

R R

M D

N C

O R

R E

C T

P

C L

N D

IT

IO

N S

(Source: 2009 Edition MUTCD)

GUIDELINES FOR ADVANCE PLACEMENT OF WARNING SIGNS

ADVANCE PLACEMENT DISTANCE

Distance Table

Warning Sign

X = Advance Placement of

See Guidelines for

X

15’

15’

ACCORDANCE WITH SECTION 2C.05 AND TABLE 2C-4 OF THE M.U.T.C.D.

LOCATED IN ACCORDANCE WITH TABLE 2C-4 OF THE M.U.T.C.D. THE MINIMUM DISTANCE BETWEEN THE SIGNS SHALL BE IN

INSTALLED UPSTREAM FROM THE YIELD AHEAD OR STOP AHEAD SIGN. THE YIELD AHEAD OR STOP AHEAD SIGN SHALL BE

IF A YIELD AHEAD OR STOP AHEAD SIGN IS INSTALLED ON THE APPROACH TO THE CROSSING, THE W10-1 SIGN SHALL BE

WITH RR SIGNALS AND/OR GATES

SIGNING & MARKING AT CROSSINGS

RAILROAD GRADE CROSSINGS

GREATER

OR

100 FEET

A

B

C

A

C

C

C

C

THE EDGE OF THE TRACKS AND THE EDGE OF PARALLEL ROADWAY.

BETWEEN THE PARALLEL ROADWAY AND THE TRACKS WHERE THERE IS OVER 100 FT BETWEEN

INTERSECTION APPROACH TO THE CROSSING, THEN PAVEMENT MARKINGS SHOULD BE PLACED

WHEN THE INTERSECTION ROADWAY IS CONTROLLED BY A STOP OR YIELD SIGN AT THE

D

E

SEE PLANS IF NECESSARY FOR STOP OR YIELD AHEAD SIGNS.

POSTED OR STATUTORY HIGHWAY SPEED IS 40 MPH OR GREATER.

GATES ARE LOCATED, AND AT ALL OTHER GRADE CROSSINGS WHERE THE

PAVED APPROACHES TO GRADE CROSSINGS WHERE SIGNALS OR AUTOMATIC

IDENTICAL MARKINGS SHALL BE PLACED IN EACH APPROACH LANE ON ALL

1. A W10-11 SIGN SUPPLEMENTED BY A W10-11A SIGN SHOULD BE USED WHERE

THERE IS A HIGHWAY INTERSECTION IN CLOSE PROXIMITY TO THE GRADE

CROSSING AND AN ENGINEERING STUDY DETERMINES THAT ADEQUATE SPACE

IS NOT AVAILABLE TO STORE A DESIGN VEHICLE(S) BETWEEN THE HIGHWAY

INTERSECTION AND THE TRAIN.

2. THE W10-11 AND W10-11a SIGNS SHOULD BE MOUNTED IN ADVANCE OF THE

GRADE CROSSING AT AN APPROPRIATE LOCATION TO ADVISE DRIVERS OF

THE SPACE AVAILABLE FOR HIGHWAY VEHICLE STORAGE BETWEEN THE

HIGHWAY INTERSECTION AND THE GRADE CROSSING.

E E

(MPH)

SPEED

0-20

65 475

100 225

ACCORDINGLY BY THE ENGINEER.

TIONS OF ROADWAY, ADJUSTMENTS WILL BE MADE

CURVATURE, SIGHT DISTANCE, OR PHYSICAL CONDI-

WHERE THIS DISTANCE IS DISRUPTED BY GRADES,*

MINIMUM

CROSSING)

(ACTIVE DEVICES

CONDITION B

MINIMUM

ONLY)

CROSSING

DEVICES

(PASSIVE

CONDITION A

W a (3

W (3

SHOWN FOR CONDITION B.

EXISTING RAILROAD ACTIVE WARNING DEVICES

H

IG

H W

A Y

T R

A C

K

N

D

B E

T W

E E

N

X

F

E T

B E

H

IN

U

T R

A C

K S

H

IG

H W

N

D

B E

T W

E E

N

E T

(O P

T

IO

N A

L

W b (3

S T

O P

Y

IE

L D

W

IS LESS THAN 100 FEET FROM CROSSING

TYPICAL SIGN SYSTEM WHERE PARALLEL ROADWAY

IS 100 FEET OR GREATER FROM CROSSING

TYPICAL SIGN SYSTEM WHERE PARALLEL ROADWAY

W

IF THE DISTANCE BETWEEN THE TRACKS AND A PARALLEL HIGHWAY, FROM THE EDGE OF THE TRACKS TO THE EDGE OF THE

PARALLEL ROADWAY, IS LESS THAN 100 FEET, W10-2, W10-3, OR W10-4 SIGNS SHALL BE INSTALLED ON EACH APPROACH OF

THE PARALLEL HIGHWAY TO WARN ROAD USERS MAKING A TURN THAT THEY WILL ENCOUNTER A GRADE CROSSING SOON AFTER

MAKING A TURN, AND A W10-1 SIGN FOR THE APPROACH TO THE TRACKS SHALL NOT BE REQUIRED TO BE BETWEEN THE TRACKS

AND THE PARALLEL HIGHWAY.

SIGN PLACEMENT SHOULD BE IN ACCORDANCE WITH THE GUIDELINES FOR INTERSECTION WARNING SIGNS IN THE M.U.T.C.D.

W10-2, W10-3, OR W10-4 SIGNS SHOULD NOT BE USED ON THE PARALLEL HIGHWAY.

W10-1 SIGN SHOULD BE INSTALLED IN ADVANCE OF THE GRADE CROSSING, AND THE

OF THE TRACKS TO THE EDGE OF THE PARALLEL ROADWAY, IS 100 FEET OR MORE, A

IF THE DISTANCE BETWEEN THE TRACKS AND THE PARALLEL HIGHWAY, FROM THE EDGE

50’-0"

WARNING SIGN PLACEMENT

SEE TABLE FOR ADVANCE

GREATER

OR

100 FEET

NOTES:

SEE PLANS FOR STOP, YIELD AND RAILROAD WARNING SIGN LOCATIONS.

20 FEET BEYOND RR WARNING SIGN (W10-1)

CENTER LINE PROHIBITING PASSING IN APPROACH TO CROSSING SHALL EXTEND MINIMUM OF

EXTEND FROM THE EDGE OF PAVEMENT TO AT LEAST HALFWAY ACROSS THE PAVEMENT.

WHERE CENTERLINE AND/OR EDGE LINES DO NOT EXIST, RR SYMBOL MARKINGS SHALL

1.

2.

3.

4.

5.

6.

TRACKS

ROADWAY TO EDGE OF

FROM EDGE OF PARALLEL

LESS THAN 100 FEET

TRACKS

ROADWAY TO EDGE OF

FROM EDGE OF PARALLEL

LESS THAN 100 FEET

B B

F

D

D

NOTES:

SEE NOTE

E

SEE TABLE FOR ADVANCE WARNING SIGN PLACEMENT

NOTES:

INTERSECTION.

OF THE STORAGE SPACE BETWEEN THE TRACKS AND THE HIGHWAY

SIGN OR JUST PRIOR TO THE SIGNALIZED INTERSECTION TO REMIND DRIVERS

GRADE CROSSING AT THE HIGHWAY INTERSECTION UNDER THE STOP OR YIELD

3. OPTIONAL - A STORAGE SPACE (W10-11B) SIGN MAY BE MOUNTED BEYOND THE

STATE DESIGN POLICY ENGINEER

CHIEF ENGINEER

R R

R R

R R

R R

W (3

W10-3(36)

W10-3(36)

SEE MUTCD FOR DETAILS OF PAVEMENT MARKINGS AT PASSIVE RAILROAD CROSSINGS

SEE MUTCD FOR CONDITION A (PASSIVE TRAFFIC CONTROL SYSTEMS)*

C J

B

E

U

T C

D

R E

V

N O

T

N D

N O

CONSTRUCTION DETAILS

NUMBER

B Y

R E

V

IS

IO

N D

A T

E

STATE PROJECT NUMBER

GA.

NO.

SHEET

SHEETS

TOTAL

DESIGNED

DRAWN

TRACED

CHECKED

DESIGNED

DRAWN

TRACED

CHECKED

DESIGNED

DRAWN

TRACED

CHECKED

T-13A

NO SCALE JANUARY 2000

C D

R

SHEET 1 OF 3

(SINGLE LANE)

8’-0"

8’-0"

1"

7’-11"

8"

8"

4"

8"

8’-0"

AREA = 20.8 FT AREA = 25.4 FT AREA = 25.4 FT

AREA = 33.5 FT

AREA = 38.1 FTAREA = 29.1 FT

2 2

2 2

TYPE 4

AREA = 25.4 FT

TYPE 5 TYPE 6

AREA = 85.0 FT

TYPE 3B

TYPE 3ATYPE 15TYPE 1 TYPE 2

(TWO LANES)

R E

N U

M B

H

O

F

PAVEMENT MARKING WORDS

DETAILS OF

7’-11"

8’-0"

8"

4" 1"

7’-9" 9’-8"

12"

10’-0"

19’-4"

8’-0"

4" 4"

8"

4"

8"

4"

8"

4"

8"

8’-6"

7’-8" 10’-5"

8’-0"

8’-6"

8’-0"

CONSTRUCTION DETAILS

NUMBER

B Y

R E

V

IS

IO

N D

A T

E

STATE PROJECT NUMBER

GA.

NO.

SHEET

SHEETS

TOTAL

DESIGNED

DRAWN

TRACED

CHECKED

DESIGNED

DRAWN

TRACED

CHECKED

DESIGNED

DRAWN

TRACED

CHECKED

T-16A

LANE

SHARED BICYCLE

DETAILS OF

4"

4"

LCL

SHARED LANE ARROW PLACEMENT WITH ON STREET PARKING

SHARED LANE ARROW PLACEMENT WITH NO STREET PARKING

CURB FACE OR EDGE OF PAVEMENT

MINIMUM 4’ FROM EDGE

TRAVEL LANE CENTERLINE

NOT TO SCALE

C

PREFERRED PLACEMENT ON c

OF PAVEMENT OR CURB

CURB FACE OR EDGE OF PAVEMENT

MINIMUM 11’ FROM EDGE

OF PAVEMENT OR CURB

LANE CENTERLINE C

PREFERRED PLACEMENT ON c

CL

TRAVEL DIRECTION

NOT TO SCALE

L

GENERAL NOTES:

1.

2.

3.

4.

BIKE SHARED LANE SYMBOL

FOR THE DEVELOPMENT OF BICYCLE FACILITIES, CURRENT EDITION.

TRAFFIC CONTROL DEVICES, CURRENT EDITION, AND AASHTO GUIDE

FOR ADDITIONAL INFORMATION REFER TO MANUAL ON UNIFORM

ASPHALT AND CONCRETE PAVEMENTS.

APPLIED PREFORMED PLASTIC (THERMOPLASTIC - 659) FOR BOTH

ALL SHARED BICYCLE LANE PAVEMENT SYMBOLS SHALL BE HOT

IN DESIGNATED BIKE LANES.

SHARED LANE MARKINGS SHALL NOT BE PLACED ON SHOULDERS OR

NOT GREATER THAN EVERY 250 FEET THEREAFTER.

INTERSECTING ROAD RADII. ADDITIONAL SYMBOLS SHOULD BE PLACED

EACH INTERSECTION 6 FEET BEYOND THE CROSS WALK OR END OF

SHARED LANE MARKINGS SHALL BE PLACED ON THE FAR SIDE OF

NO SCALE 3-30-16

Detail 9024A Railroad Grade Crossing
Detail A3 Sidewalk & Curb Cut Ramps
Detail A4 DetectableWarningSurface
Detail T03A Sign Post and Mount
Detail T11A Markings Lane Striping
Detail T13A Markings Words
Detail T15C Raised Pavement Markers
Detail T16A Shared Bicycle Lane
Downtown Crosswalk
speed table details #1 and 2

File details come from the government source that posted it. Updated .