130-GUIDE_SHEET_-_Restricted_Pedestrian_Crossing_Ramp(s).pdf
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- Solicitation number
- CWB014279
- Issued by
- Fairfield County, Bridgeport City, Connecticut
About this file
This is a design guide sheet issued by the Connecticut Department of Transportation establishing technical standards for restricted pedestrian crossing ramps and concrete sidewalk ramps. The guide provides detailed specifications for sidewalk ramp construction, including Type 20 ramps with non-walking surfaces featuring restricted pedestrian crossing and turning spaces, and Type 21 ramps with landings at the bottom. The document includes multiple ramp configurations with specific dimensional requirements, such as maximum running slopes of 8.33 percent (7.1 percent typical), minimum 48-inch widths, 60-inch minimum turning spaces with 2.0 percent maximum slope (1.5 percent typical), and minimum 2-foot radius curves. Detectable warning surfaces must extend a minimum of 2 feet in the direction of pedestrian or vehicle travel and span the entire ramp opening. The guide references compliance with the Public Right-of-Way Accessibility Guidelines (PROWAG) Draft 2013 and Connecticut DOT Engineering Directive ED-2019-7. The specifications are intended to support the City of Bridgeport's Citywide Sidewalk, Curb, Apron & ADA Ramp Repair and Replacement project, with electronic bid submissions due by 2:00 pm on Tuesday, September 22, 2026, through the City's OpenGov Procurement Portal.
Additional specifications outlined in the guide include coarse broom finish surfaces transverse to ramp slopes, vertical surface discontinuities at joints not exceeding 1/4 inch maximum lip height, removal of existing sidewalk to the nearest inch for new ramp installations, and curb ramp construction designed to prevent water accumulation within pedestrian access routes. Sloped curbing is included with ramp installations, and reveal heights are not to exceed 12 inches. The guide sheet represents Sheet 8 of 11 from the Connecticut Department of Transportation Highway Standards and Guide Sheets, last updated October 30, 2024, and serves as a technical resource for contractors and engineers implementing ADA-compliant pedestrian infrastructure improvements.
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Text version
8.33% MAX.
7.1% TYP.
RAMP SLOPE
CURBING
CURBING
SURFACE
NON-WALKING
SURFACE
NON-WALKING
48" MIN. 48" MIN.
8.33% MAX.
7.1% TYP.
RAMP SLOPE
8.33% MAX.
7.1% TYP.
RAMP SLOPE
CURBING
CURBING
SURFACE
NON-WALKING
SURFACE
NON-WALKING
48" MIN.
48" MIN.
2.0% MAX.
1.5% TYP.
TURNING SPACE
(TYPE 20)
WITH NON-WALKING SURFACE
RESTRICTED PEDESTRIAN CROSSING SIDEWALK RAMP
(TYPE 21)
WITH LANDING AT BOTTOM AND NON-WALKING SURFACE
RESTRICTED PEDESTRIAN CROSSING
WITH RAMP (TYP.)
SLOPED CURBING INCLUDED
WITH RAMP (TYP.)
SIDEWALK CURBING INCLUDED
60" MIN.
R=2' MIN. (TYP.)
R=2' MIN. (TYP.)
(REVEAL NOT TO EXCEED 12")
SLOPED CURBING INCLUDED WITH RAMP (TYP.)
GENERAL NOTES:
¼
TRAVEL AND SPAN THE ENTIRE RAMP OPENING.
6. DETECTABLE WARNING SURFACES SHALL EXTEND 2 FEET MIN. IN THE DIRECTION OF PEDESTRIAN
OR HIGHWAYS.
STREET CROSSINGS, PEDESTRIAN REFUGE ISLANDS AND RAILROAD CROSSINGS ALONG STREETS
5. DETECTABLE WARNING SURFACES SHALL BE INSTALLED ON SIDEWALK RAMPS AT PEDESTRIAN
REQUIRE THE RAMP LENGTH TO EXCEED 15 FEET.
4. THE RUNNING SLOPE OF THE CURB RAMP SHALL BE 8.33 PERCENT MAXIMUM BUT SHALL NOT
EXPANSION OR CONTRACTION JOINT.
3. REMOVAL OF EXISTING SIDEWALK FOR NEW RAMP INSTALLATIONS SHALL BE TO THE NEAREST
INCH.2. VERTICAL SURFACE DISCONTINUITIES AT JOINTS SHALL NOT EXCEED
1. SIDEWALK RAMPS SHALL HAVE A COARSE BROOM FINISH TRANSVERSE TO THE SLOPE OF THE RAMP.
SURFACE (SEE NOTE 6)
DETECTABLE WARNING
0" - 1/4" MAX.
LIP HEIGHT
0" - 1/4" MAX.
LIP HEIGHT
SURFACE (SEE NOTE 6)
DETECTABLE WARNING
60" MIN.
2.0% MAX.
1.5% TYP.
TURNING SPACE
8.33% MAX.
7.1% TYP.
RAMP SLOPE
8.33% MAX.
7.1% TYP.
RAMP SLOPE
CURBING
CURBING
SURFACE
NON-WALKING
SURFACE
NON-WALKING
48" MIN. 48" MIN.
8.33% MAX.
7.1% TYP.
RAMP SLOPE
8.33% MAX.
7.1% TYP.
RAMP SLOPE
CURBING
CURBING
SURFACE
NON-WALKING
SURFACE
NON-WALKING
48" MIN.
48" MIN.
2.0% MAX.
1.5% TYP.
TURNING SPACE
(TYPE 20)
WITH NON-WALKING SURFACE
RESTRICTED PEDESTRIAN CROSSING SIDEWALK RAMP
(TYPE 21)
WITH LANDING AT BOTTOM AND NON-WALKING SURFACE
RESTRICTED PEDESTRIAN CROSSING
WITH RAMP (TYP.)
SLOPED CURBING INCLUDED
WITH RAMP (TYP.)
SIDEWALK CURBING INCLUDED
60" MIN.
R=2' MIN. (TYP.)
R=2' MIN. (TYP.)
(REVEAL NOT TO EXCEED 12")
SLOPED CURBING INCLUDED WITH RAMP (TYP.)
GENERAL NOTES:
¼
PEDESTRIAN ACCESS ROUTE.
9. CURB RAMPS SHALL BE CONSTRUCTED SO THAT WATER WILL NOT ACCUMLATE WITHIN THE
SEE ENGINEERING DIRECTIVE ED-2019-7.
8. CTDOT DESIGN STANDARD USE THE PUBLIC RIGHT-OF-WAY ACCESSIBILITY GUIDELINES (PROWAG)
WILL BE MADE TO COMPLY WITH PROWAG FINAL RULE ONCE OFFICIALLY THE LAW.
7. ALL GUIDESHEET VALUES COMPLY WITH PROWAG DRAFT 2013 GUIDELINES. UPDATED VALUES
TRAVEL AND SPAN THE ENTIRE RAMP OPENING.
6. DETECTABLE WARNING SURFACES SHALL EXTEND 2 FEET MIN. IN THE DIRECTION OF PEDESTRIAN
OR HIGHWAYS.
STREET CROSSINGS, PEDESTRIAN REFUGE ISLANDS AND RAILROAD CROSSINGS ALONG STREETS
5. DETECTABLE WARNING SURFACES SHALL BE INSTALLED ON SIDEWALK RAMPS AT PEDESTRIAN
REQUIRE THE RAMP LENGTH TO EXCEED 15 FEET.
4. THE RUNNING SLOPE OF THE CURB RAMP SHALL BE 8.33 PERCENT MAXIMUM BUT SHALL NOT
EXPANSION OR CONTRACTION JOINT.
3. REMOVAL OF EXISTING SIDEWALK FOR NEW RAMP INSTALLATIONS SHALL BE TO THE NEAREST
INCH.2. VERTICAL SURFACE DISCONTINUITIES AT JOINTS SHALL NOT EXCEED
1. SIDEWALK RAMPS SHALL HAVE A COARSE BROOM FINISH TRANSVERSE TO THE SLOPE OF THE RAMP.
SURFACE (SEE NOTE 6)
DETECTABLE WARNING
0" - 1/4" MAX.
LIP HEIGHT
0" - 1/4" MAX.
LIP HEIGHT
SURFACE (SEE NOTE 6)
DETECTABLE WARNING
60" MIN.
2.0% MAX.
1.5% TYP.
TURNING SPACE
8.33% MAX.
7.1% TYP.
RAMP SLOPE
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 8 OF 11
CONCRETE SIDEWALK RAMPS
TRANSPORTATION
DEPARTMENT OF
CONNECTICUT
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