121-GUIDE_SHEET_-_Perpendicular_Ramp(s).pdf
PDF 315 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 detailing specifications for concrete sidewalk ramps and curb ramp construction standards applicable to the City of Bridgeport's Citywide Sidewalk, Curb, Apron & ADA Ramp Repair and Replacement project. The guide provides technical specifications for three types of perpendicular ramp configurations (Types 11, 12, and 13) with detailed dimensional and slope requirements to ensure compliance with Public Right-of-Way Accessibility Guidelines (PROWAG). Key specifications include maximum ramp slopes of 8.33 percent (with a typical slope of 7.1 percent), minimum turning spaces of 48 inches, maximum transverse slopes of 2.0 percent (typical 1.5 percent), detectable warning surfaces extending a minimum of 2 feet, and maximum vertical surface discontinuities at joints not exceeding one-quarter inch. All ramps must include coarse broom finishes transverse to the surface and be constructed to prevent water accumulation. The specifications comply with PROWAG Draft 2013 Guidelines and Connecticut Department of Transportation Engineering Directive ED-2019-7, with provisions for updates upon official adoption of the final PROWAG rule.
Electronic bid submissions for the Citywide Sidewalk, Curb, Apron & ADA Ramp Repair and Replacement project are due by 2:00 pm on Tuesday, September 22, 2026, through the City of Bridgeport's e-Procurement Portal (OpenGov). Bidders must create a free account at https://procurement.opengov.com/signup and submit responses through the portal. Written questions must be submitted by 5:00 pm on Tuesday, September 8, 2026, with answers published as addenda on the procurement website. Bidders are required to monitor the OpenGov Procurement portal regularly for any issued addendums. Submissions will be publicly opened at the Department of Public Purchases, 2nd floor, 999 Broad Street, Bridgeport, CT 06604.
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Text version
48" MIN.
2.0% MAX.
1.5% TYP.
TURNING SPACE
8.33% MAX.
7.1% TYP.
RAMP SLOPE
SIDEWALK CURBING INCLUDED
WITH RAMP (TYP.)
NON-WALKING SURFACE
2.0% MAX.
1.5% TYP.
TURNING SPACE
8.33% MAX.
7.1% TYP.
RAMP SLOPE
8.33% MAX.
7.1% TYP.
RAMP SLOPE
8.33% MAX.
7.1% TYP.
RAMP SLOPE
NON-WALKING SURFACE
WITH RAMP (TYP.)
SLOPED CURBING INCLUDED
SIDEWALK CURBING INCLUDED WITH RAMP (TYP.)
SIDEWALK CURBING INCLUDED WITH RAMP (TYP.)
60" MIN.
(TYPE 11)
NON-WALKING SURFACE
PERPENDICULAR RAMP WITH
(TYPE 12)
AND NON-WALKING SURFACE
PERPENDICULAR RAMP WITH SIDEWALK CURB
(TYPE 13)
WITH NON-WALKING SURFACE
PERPENDICULAR RAMP
R=2' MIN. (TYP.)
R=2' MIN. (TYP.)
CURBING
NON-WALKING
SURFACE
CURBING
CURBING
NON-WALKING
SURFACE
(REVEAL SHALL NOT EXCEED 12")
SIDEWALK CURBING
48" MIN.
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
ONCE OFFICIALLY THE LAW.
UPDATED VALUES WILL BE MADE TO COMPLY WITH PROWAG FINAL RULE
7. ALL GUIDESHEET VALUES COMPLY WITH PROWAG DRAFT 2013 GUIDELINES.
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 NOTE 6)
DETECTABLE WARNING
60" MIN.
0" - 1/4" MAX.
LIP HEIGHT
SURFACE (SEE NOTE 6)
DETECTABLE WARNING
0" - 1/4" MAX.
LIP HEIGHT
2.0% MAX.
1.5% TYP.
TURNING SPACE
8.33% MAX.
7.1% TYP.
RAMP SLOPE
8.33% MAX.
7.1% TYP.
RAMP SLOPE
NON-WALKING SURFACE
WITH RAMP (TYP.)
SLOPED CURBING INCLUDED
60" MIN.
(REVEAL SHALL NOT EXCEED 12")
SIDEWALK CURBING
48" MIN.
CURBING
WITH RAMP (TYP.)
SIDEWALK CURBING INCLUDED
NON-WALKING SURFACE
R=2' MIN. (TYP.)
SURFACE (SEE NOTE 6)
DETECTABLE WARNING
0" - 1/4" MAX.
LIP HEIGHT
8.33% MAX.
7.1% TYP.,
RAMP SLOPE
60" MIN.
NON-WALKING SURFACE
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 5 OF 11
CONCRETE SIDEWALK RAMPS
TRANSPORTATION
DEPARTMENT OF
CONNECTICUT
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