115-GUIDE_SHEET_-_Perpendicular_Ramp(s)_with_Street.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 standards for perpendicular concrete sidewalk ramps with street crossings. The guide provides technical specifications for ADA-compliant curb ramp construction applicable to the City of Bridgeport's Citywide Sidewalk, Curb, Apron & ADA Ramp Repair and Replacement project. The document outlines dimensional requirements, slope tolerances, surface finishes, and detectable warning specifications for two curb ramp types (Type 6 and Type 7) used in various intersection configurations. Key specifications include maximum running slopes of 8.33 percent, minimum 48-inch turning spaces, 48-inch minimum maneuvering spaces, 60-inch minimum detectable warning extensions, maximum 1/4-inch lip heights, and coarse broom finish requirements transverse to ramp slope. Vertical surface discontinuities at joints are limited to 1/4 inch maximum, and water drainage requirements must be incorporated into construction. The guide references compliance with Public Right-of-Way Accessibility Guidelines (PROWAG) Draft 2013 and notes that updated values will conform to PROWAG Final Rule upon official adoption. The specifications apply to pedestrian access routes, street crossings, pedestrian refuge islands, and railroad crossings along streets, with technical infeasibility forms required when physical constraints prevent full compliance.
The document is part of Connecticut Department of Transportation's January 2025 Highway Standards and Guide Sheets collection and establishes the baseline technical requirements for the Bridgeport sidewalk and ramp repair project, with bids due September 22, 2026. The guide sheet serves as a reference document to ensure all submitted bids and subsequent construction work meet state accessibility and design standards. No pricing information, set-asides, or funding details are contained within this technical specification document.
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Text version
2.0% MAX.
1.5% TYP. 48" MIN.
1.5% TYP.
8.33% MAX.
7.1% TYP.
RAMP SLOPE
WITH RAMP (TYP.)
SLOPED CURBING INCLUDED
TURNING SPACE
48" MIN.
CROSSWALKCROSSWALK
MAX.
10%
MAX.
10%
NON-WALKING SURFACE
CURBING
2.0% MAX.
1.5% TYP.
RAMP SLOPE
WITH RAMP (TYP.)
SLOPED CURBING INCLUDED
TURNING SPACE
48" MIN.
SPACE
MANEUVERING
48" MIN. x 48" MIN.
CROSSWALKCROSSWALK
0" - 1/4" MAX.
LIP HEIGHT
MAX.
10%
MAX.
10%
CURBING
(TYPE 6)
WITH TURNING SPACE AT TOP
PERPENDICULAR RAMP
BUILDING LIMITS
RESTRICTED STRUCTURE OR
SURFACE (SEE NOTE 6)
DETECTABLE WARNING
SPACE
MANEUVERING
48" MIN. x 48" MIN.
60" MIN.
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
(TYPE 7)
WITH TURNING SPACE AT TOP
PERPENDICULAR RAMP
2.0% MAX.
1.5% TYP. 48" MIN.
RAMP SLOPE
WITH RAMP (TYP.)
SLOPED CURBING INCLUDED
TURNING SPACE
48" MIN.
CROSSWALKCROSSWALK
MAX.
10%
MAX.
10%
NON-WALKING SURFACE
CURBING
2.0% MAX.
1.5% TYP.
RAMP SLOPE
WITH RAMP (TYP.)
SLOPED CURBING INCLUDED
TURNING SPACE
48" MIN.
SPACE
MANEUVERING
48" MIN. x 48" MIN.
CROSSWALKCROSSWALK
0" - 1/4" MAX.
LIP HEIGHT
MAX.
10%
MAX.
10%
CURBING
(TYPE 6)
WITH TURNING SPACE AT TOP
PERPENDICULAR RAMP
BUILDING LIMITS
RESTRICTED STRUCTURE OR
SURFACE (SEE NOTE 6)
DETECTABLE WARNING
SPACE
MANEUVERING
48" MIN. x 48" MIN.
60" MIN.
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
(TYPE 7)
WITH TURNING SPACE AT TOP
PERPENDICULAR RAMP
PROJECT TITLE: PROJECT NO.: DRAWING NO.:
SHEET NO.:
12/27/2024
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\A-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 3 OF 11
CONCRETE SIDEWALK RAMPS
TRANSPORTATION
DEPARTMENT OF
CONNECTICUT
SITUATIONS WHERE USED.
INFEASIBLE. A TECHNICAL INFEASIBILITY FORM IS REQUIRED IN
PHYSICAL CONSTRAINTS MAKE COMPLIANCE TECHNICALLY
ONLY BE PERMITTED IN ALTERATIONS WHERE THE EXISTING
APEX OF THE INTERSECTION SERVING TWO CROSSWALKS SHALL
TYPE 6 & 7 OR A SINGLE CURB RAMP PLACED AT THENOTE:
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