139-GUIDE_SHEET_-_Driveway(s).pdf
PDF 331 KB Posted
- Solicitation number
- CWB014279
- Issued by
- Fairfield County, Bridgeport City, Connecticut
About this file
This is a Connecticut Department of Transportation design guide sheet for concrete sidewalk ramps prepared by the Connecticut Transportation Department. The document establishes technical specifications and construction standards for driveway crossings and curb ramps throughout Connecticut municipalities, including the City of Bridgeport. The guide sheet details four primary driveway crossing types: Type 29 and Type 31 configurations for signalized, stop-controlled, or yield-controlled intersections with detectable warning surfaces, and Type 30 and Type 32 configurations for unsignalized crossings without stop or yield control. The specifications address ramp slopes (8.33% maximum, 7.1% typical), turning space requirements (2.0% maximum, 1.5% typical), curb lip heights (0" to 1/4" maximum), and minimum width requirements (48 inches) for sidewalk ramps and non-walking surfaces. The guide sheet was last updated October 30, 2024, and complies with the Public Right-of-Way Accessibility Guidelines (PROWAG) Draft 2013 requirements, with provisions for future updates when the PROWAG Final Rule is officially adopted.
The document provides nine general notes establishing construction and design requirements, including specifications that curb ramps shall have a coarse broom finish transverse to the slope direction, vertical surface discontinuities at joints shall not exceed one inch, removal of existing sidewalk for new ramp installations shall be to the nearest expansion or contraction joint, the running slope of curb ramps shall not exceed 8.33 percent, and detectable warning surfaces shall extend two feet minimum in the direction of pedestrian travel and span the entire ramp opening. Water accumulation is prohibited within the pedestrian access route. These technical standards serve as the baseline specifications for the City of Bridgeport's Citywide Sidewalk, Curb, Apron & ADA Ramp Repair and Replacement project with a bid submission deadline of September 22, 2026, at 2:00 pm through the OpenGov Procurement Portal.
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Text version
8.33% MAX.
7.1% TYP.
RAMP SLOPE
2.0% MAX.
1.5% TYP.
TURNING SPACE
8.33% MAX.
7.1% TYP.
RAMP SLOPE
2.0% MAX.
1.5% TYP.
TURNING SPACE
8.33% MAX.
7.1% TYP.
RAMP SLOPE
2.0% MAX.
1.5% TYP.
TURNING SPACE
8.33% MAX.
7.1% TYP.
RAMP SLOPE
2.0% MAX.
1.5% TYP.
TURNING SPACE
8.33% MAX.
7.1% TYP.
RAMP SLOPE
8.33% MAX.
7.1% TYP.
RAMP SLOPE
2.0% MAX.
1.5% TYP.
SPACE
TURNING
8.33% MAX.
7.1% TYP.
RAMP SLOPE
(TYPE 30)
WITH NON WALKING SURFACE
UNSIGNALIZED, NO STOP CONTROL OR YIELD DRIVEWAY CROSSING
48" MIN.
48" MIN.
INCLUDED WITH RAMP
SIDEWALK CURBING (TYP.)
48" MIN.
48" MIN.
LIP HEIGHT 0" - 1/4" MAX. (TYP.)
INCLUDED WITH RAMP
SIDEWALK SLOPE CURBING (TYP.)
NON-WALKING SURFACE
CURBING
48" MIN.
48" MIN.
48" MIN.
48" MIN.
(TYPE 29)
WITH DETECTABLE WARNING SURFACE AND NON WALKING SURFACE
DRIVEWAY CROSSING SIGNALIZED, STOP CONTROLLED OR YIELD
8.33% MAX.
7.1% TYP.
RAMP SLOPE
GENERAL NOTES:
¼
WITHIN THE PEDESTRIAN ACCESS ROUTE.
9. CURB RAMPS SHALL BE CONSTRUCTED SO THAT WATER WILL NOT ACCULATE
GUIDELINES (PROWAG) SEE ENGINEERING DIRECTIVE ED-2019-7.
8. CTDOT DESIGN STANDARD USE THE PUBLIC RIGHT-OF-WAY ACCESSIBILITY
OFFICIALLY THE LAW.
UPDATED VALUES WILL BE MADE TO COMPLY WITH PROWAG FINAL RULE ONCE
8. ALL GUIDESHEET VALUES COMPLY WITH PROWAG DRAFT 2013 REQUIREMENTS.
INSTALLED ON ADJACENT SIDEWALK RAMP(S).
CONTROL SIGN OR TRAFFIC SIGNAL, DETECTABLE WARNING SURFACE SHALL BE
7. FOR DRIVEWAY WHERE TRAFFIC IS CONTROLLED WITH; YIELD SIGN, STOP
DIRECTION OF PEDESTRIAN TRAVEL AND SPAN THE ENTIRE RAMP OPENING.
6. DETECTABLE WARNING SURFACES SHALL EXTEND 2 FEET MIN. IN THE
RAILROAD CROSSINGS ALONG STREETS OR HIGHWAYS.
AT PEDESTRIAN STREET CROSSINGS, PEDESTRIAN REFUGE ISLANDS AND
5. DETECTABLE WARNING SURFACES SHALL BE INSTALLED ON SIDEWALK RAMPS
BUT SHALL NOT REQUIRE THE RAMP LENGTH TO EXCEED 15 FEET.
4. THE RUNNING SLOPE OF THE CURB RAMP SHALL BE 8.33 PERCENT MAXIMUM
BE TO THE NEAREST EXPANSION OR CONTRACTION JOINT.
3. REMOVAL OF EXISTING SIDEWALK FOR NEW RAMP INSTALLATIONS SHALL
INCH.2. VERTICAL SURFACE DISCONTINUITIES AT JOINTS SHALL NOT EXCEED
THE SLOPE OF THE RAMP.
1. SIDEWALK RAMPS SHALL HAVE A COARSE BROOM FINISH TRANSVERSE TO
SURFACE (SEE NOTES 6 AND 7)
DETECTABLE WARNING
SURFACE (SEE NOTES 6 AND 7)
DETECTABLE WARNING
NON-WALKING SURFACE
CURBING
LIP HEIGHT 0" - 1/4" MAX. (TYP.)
SURFACE (SEE NOTE 6 AND 7)
DETECTABLE WARNING
LIP HEIGHT 0" - 1/4" MAX. (TYP.)
(TYPE 31)
WITH DETECTABLE WARNING SURFACE
DRIVEWAY CROSSING SIGNALIZED, STOP CONTROL OR YIELD
(TYPE 32)
UNSIGNALIZED, NO STOP CONTROL OR YIELD DRIVEWAY CROSSING
NON-WALKING SURFACE
SURFACE (SEE NOTES 6 AND 7)
DETECTABLE WARNING
LIP HEIGHT 0" - 1/4" MAX. (TYP.)
2.0% MAX.
1.5% TYP.
SPACE
TURNING
2.0% MAX.
1.5% TYP.
SPACE
TURNING
2.0% MAX.
1.5% TYP.
SPACE
TURNING
PROJECT TITLE: PROJECT NO.: DRAWING NO.:
SHEET NO.:
10/30/2024
SIGNATURE BLOCK: DRAWING TITLE:
TOWN(S):
VARIOUSTEST PROJECT
PLOTTED DATE:
C:\Users\KIlpatrickdj\State of Connecticut\DOT Engineering Services - Documents\HWY_STD_GUIDE_DWG\B - Going for signatures\Jan 2025 Stnd & Guide Shts\CTDOT_HIGHWAY_GD Jan 2025 [10-30-24].dgn FILE NAME: kilpatrickdj LASTED SAVED BY:
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DESIGNER/DRAFTER: CHECKED BY:
SHEET 11 OF 11
CONCRETE SIDEWALK RAMPS
TRANSPORTATION
DEPARTMENT OF
CONNECTICUT
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