2-25-049-STRT 400 W Sidewalk Improvements - Signed.pdf

PDF 7 MB Posted Jul 30, 2026

Attached to: 2027 Concrete Project
Solicitation number: 26-003 - 2027 Concrete Project
Issued by: Utah County, Utah

About this file

Written by GovTribe AI · Jul 30, 2026

This is a set of construction drawings prepared by the City of Orem, Utah, Engineering Division for the 400 W Sidewalk Improvements project, designed by Dallin Marsh in July 2026. The project encompasses the installation of 535 lineal feet of new concrete sidewalk, curb and gutter, concrete bus pads, and ADA-compliant ramps on 400 West from University Parkway to approximately 1386 South in Orem. The work is divided into three sections: a south section from station 100+00 to 101+48, a middle section from 200+00 to 204+04, and a north section from 300+00 to 301+43. The project includes replacement of existing concrete elements, installation of one 8.5-foot by 8-foot concrete bus pad with sign relocation coordinated with the Utah Transit Authority, removal and replacement of 225 linear feet of guardrail, and preservation or protection of existing utilities including fire hydrants, electrical manholes, utility boxes, and streetlights. The contractor is required to develop and implement a Storm Water Pollution Prevention Plan prior to construction and coordinate with the Utah Transit Authority throughout construction regarding bus routes, stops, and signage.

The engineer's estimate for the project is between $750,000 and $850,000. Key construction specifications require imported pipe bedding, maintenance of driveway access during construction with steel plates for concrete curing, survey and location of all manhole covers and water valves with concrete collars raised flush to new asphalt surfaces, asphalt joint placement at striping locations rather than wheel paths, and protection of section corners during construction. The contractor is responsible for all survey staking within the City's OREM97 survey datum, potholing and locating all existing utilities, and handling roadway reconstruction using either 5 inches of HMA PG 64-34 asphalt with 8 inches of untreated base course for other streets or 7 inches of HMA PG 64-34 asphalt with 8 inches of untreated base course for UDOT right-of-way. Road closures require approval from the City Engineer and notification to Public Safety, Waste Management, the Post Office, affected school districts, and UTA.

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File	Type	Posted
3-26-003 2027 Concrete Project Construction Plans - Signed.pdf	PDF	Jul 30, 2026
1-26-003 Contract Docs and Specifications Base - Signed.pdf	PDF	Jul 30, 2026

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DEVELOPMENT SERVICES

ENGINEERING DIVISION

56 NORTH STATE ST

OREM, UT 84057

CITY OF OREM

JULY 2026

CITY OF OREM, COMMUNITY DEVELOPMENT, ENGINEERING DIVISION

DRAWINGS FOR THE CONSTRUCTION OF:

400 W SIDEWALK IMPROVEMENTS

- SIDEWALK AND CROSSWALK TO BUS STOPS - 07/29/2026

PROJECT VICINITY MAP SYMBOLS DRAWING INDEX

LOCATION MAP

ABBREVIATIONS

CITY OF OREM

ENGINEERING DIVISION

COMMUNITY DEVELOPMENT

OREM, UT 84057

56 NORTH STATE ST

(801) 229-7107

APPROVAL CITY ENGINEER

APPROVAL COMMUNITY DEVELOPMENT DIRECTOR

DESIGN: DALLIN MARSH

DATE: JULY 2026

2000 NORTH

1600 NORTH

1200 NORTH

800 NORTH

400 NORTH

CENTER ST

400 SOUTH

800 SOUTH

1200 SOUTH

1600 SOUTH

2000 SOUTH

N S

GENERAL INFORMATION

PROJECT NUMBER: 25-049

SHEET

TITLENUMBER

TITLE SHEET1

GENERAL INFO AND LOCATION MAP2

RD-2

IRR IRRIGATION

OC ON CENTER

OUTSIDE DIAMETEROD

LIP OF GUTTER

NOT IN CONTRACT

NOT TO SCALE

NIC

NTS

MH MANHOLE

SIDEWALK

TOP OF WALK

TOP OF CONCRETE

TELEPHONE

EOA EDGE OF ASPHALT

END VERTICAL CURVE

FIRE HYDRANT

INSIDE DIAMETER

GAS

EVC

FLOW LINE

CONTROL POINT

DUCTILE IRON

END CURB RETURN

ECR

EC END CURVE

ELEVATION

CTV

CABLE TV

TYP

WATER

TYPICAL

ENGINEERING STATION

POINT OF TANGENCY

POINT ON CURVE

POINT OF INTERSECTION

POLYVINYL CHLORIDE

RIGHT OF WAY

STORM DRAIN

SANITARY SEWER

POINT OF CURVATURE

POLE, POWER

CURB & GUTTER

BEGIN VERTICAL CURVE

CORRUGATED METAL PIPE

CONC

CMP

CAST IRON

CLEANOUT

CONCRETE

BVC

BM BENCH MARK

CATCH BASIN

R/W

STA

PVC

PRV

ASPHALT CONCRETE

BEGIN CURVE

BEGIN CURB RETURN

.BCR

POC

S S

EXISTING CATCH BASIN

EXISTING CLEANOUT

EXISTING MANHOLE

EXISTING PRESSURE REDUCER

EXISTING SUMP

EXISTING WATER METER

EXISTING FIRE HYDRANT

EXISTING WATER VALVE

NEW CATCH BASIN

NEW CLEANOUT

NEW MANHOLE

NEW PRESSURE REDUCER

NEW SUMP

NEW WATER METER

NEW FIRE HYDRANT

NEW WATER VALVE

NEW WATER CROSS

NEW WATER TEE

NEW WATER ELBOW

NEW WATER SLEEVE

NEW WATER REDUCER

NEW WATER PLUG

NEW STREETLIGHTEXISTING STREETLIGHT

EXISTING POLE

EXISTING POLE WITH ANCHOR

SECTION CORNER

CONTROL POINT

SIGN

CONIFEROUS TREE DECIDUOUS TREE

CURB, GUTTER & SIDEWALKCG&SW

ROAD CENTERLINERCL

PRESSURE REDUCING VALVE

EXISTING UTILITIES NEW UTILITIES

INVERT ELEVATIONINV

HDPE

REINFORCED CONCRETE PIPERCP

CL CENTERLINE

FO FIBER OPTIC

HIGH-DENSITY POLYETHYLENE

G-1

RD-3

PROJECT

AREA

UNIVERSITY PARKWAY

NORTH SECTION 300+00 TO 301+43

DESIGN ENGINEER DALLIN MARSH 229-7478

PROJECT MANAGER JOHN WIRTHLIN 229-7336

SEWER CHAD JOHNSON 229-7485

WATER QUINN FENTON 229-7546

STORM DRAIN CHELSEA LINDSEY 229-7574

STREETS BILL PETERSON 229-7537

STREET LIGHTS JUSTIN GAINES 229-7527

SIGNS TRENT MALLINSON 229-7519

TRAFFIC CONTROL JOHN DORNY 229-7320

SWPPP RYAN CASPER 229-7573

CONTACTS

GENERAL NOTES

TOP OF ASPHALTTA

RD-1

OVERVIEW

MIDDLE SECTION 200+00 TO 204+04

SOUTH SECTION 100+00 TO 101+48

ANGLE POINTAP

400 W SIDEWALK IMPROVEMENTS

- SIDEWALK AND CROSSWALK TO BUS STOPS -

1. THE CONTRACTOR IS TO READ AND UNDERSTAND THE M&P SPECIAL

CONDITIONS LOCATED IN THE SPECIFICATIONS. EACH LINE ITEM IS

COVERED IN DETAIL WITH EXTRA INFORMATION THAT MAY NOT BE FOUND

ON THE PLANS.

2. UNDERGROUND UTILITIES ARE APPROXIMATE. THE CONTRACTOR IS

RESPONSIBLE TO POTHOLE, LOCATE AND PROTECT ALL EXISTING UTILITIES.

THE CONTRACTOR IS RESPONSIBLE TO POTHOLE EXISTING UTILITIES TO

VERIFY ELEVATION AND LOCATION.

3. THE CONSTRUCTION SURVEY STAKING IS TO BE PROVIDED BY THE

CONTRACTOR. ALL SURVEY ACTIVITIES SHALL BE PERFORMED WITHIN THE

CITY'S “OREM97” SURVEY DATUM, UNLESS OTHERWISE NOTED.

4. THE CONTRACTOR IS REQ'D TO DEVELOP AND IMPLEMENT A STORM

WATER POLLUTION PREVENTION PLAN (SWPPP) ACCORDING TO

SPECIFICATION 01 57 00 BEFORE CONSTRUCTION BEGINS. THE SWPPP IS

TO BE SUBMITTED TO THE CITY OF OREM DEVELOPMENT SERVICES FOR

APPROVAL.

5. THROUGHOUT CONSTRUCTION THE CONTRACTOR IS REQUIRED TO NOTIFY

AND COORDINATE WITH THE UTAH TRANSIT AUTHORITY (UTA)

CONCERNING BUS ROUTES, BUS STOPS, AND UTA ROUTE SIGNS.

6. ROADWAY RECONSTRUCTION / TRENCH PATCH REQUIREMENTS:

OTHER STREETS

5" HMA PG 64-34 ASPHALT W/ 1/2" MAX. AGGREGATE & 8" UNTREATED BASE

COURSE

UDOT ROW

7" HMA PG 64-34 ASPHALT W/ 1/2" MAX. AGGREGATE & 8" UNTREATED BASE

COURSE

7. IMPORTED PIPE BEDDING IS REQ'D. IF EXCAVATED MATERIAL IS FOUND TO

BE SUITABLE FOR BEDDING, THE CITY WILL ASK THE CONTRACTOR FOR A

CREDIT.

8. THE CONTRACTOR IS REQ'D TO MAINTAIN DRIVEWAY PARKING ACCESS TO

ALL APARTMENT BUILDINGS, BUSINESSES, HOMES, ETC. DURING

CONSTRUCTION. STEEL PLATES ARE REQ'D WHILE THE NEW CONCRETE

CURES FOR THE CURB, GUTTER, AND SIDEWALK FOR ANY DRIVEWAY

ENTRANCES AFFECTED.

9. THE CONTRACTOR IS RESPONSIBLE TO SURVEY AND LOCATE ALL MANHOLE

COVERS AND WATER VALVES IF NEEDED DURING PAVING. ALL MANHOLES

AND WATER VALVES ARE TO BE RAISED BY THE CONTRACTOR WITH

CONCRETE COLLARS TO BE FLUSH WITH THE NEW ASPHALT SURFACE.

10. WHENEVER FEASIBLY POSSIBLE THE CONTRACTOR IS REQUIRED TO HAVE

ALL ASPHALT JOINTS PLACED AT THE STRIPING LOCATIONS AND NOT IN

THE WHEEL PATH LOCATIONS.

11. ALL SECTIONS CORNERS MUST BE PROTECTED DURING THE

CONSTRUCTION PROCESS. ANY DAMAGED OR DISTURBED SECTION

CORNERS MUST BE RE-SURVEYED AT THE CONTRACTORS EXPENSE AND

VERIFIED WITH THE CITY SURVEYOR.

12. ROAD CLOSURES WILL ONLY BE ALLOWED WITH APPROVAL FROM THE CITY

ENGINEER. FOR ANY ROAD CLOSURES CONTRACTOR MUST NOTIFY PUBLIC

SAFETY, WASTE MANAGEMENT, POST OFFICE, ANY SCHOOL DISTRICTS

AFFECTED, AND UTA.

EXISTING STRUCTURE

OR FACILITY

1430 SOUTH

B-1 BUS PAD 1 DETAIL

D-1 DETAILS

D-2 DETAILS

BA 4A UDOT DETAIL

BA 4D1 UDOT DETAIL

B D-

D- 1B

SS 6in

SS 8in

SS 8in SS 8in

SS 8in

SS 8in SS 8in

SS 8in

SD 12in

SD 15in

15in

8i n

8in

SD 8in

W 8in

W in

W 12in

2i n

W 12in W 12in

W 12in

W 1in

W W

100+48

100+00

D- 1C

D-1A

203+99

300+00 30 1+

301+38

KPDMDM

W O

W S

G-1

15075

SCALE: 1" = 150' (11"x 17" SHEET SIZE)

\2 5-

B U

W \D

N \D

W G\

\2 5-

.D W

N U

5' SIDEWALK

SHEET RW-1

SHEET RW-2

SHEET RW-3

O F

M , U

N G

M M

U N

2' ASPHALT PATCH

7’ MONOLITHIC CURB,

GUTTER, AND SIDEWALK

(THICKENED EDGE)

SS 6in

SS 8in

SS 8inSS 8in

SS 8in

SD 15in

W 8in

W 12in

W 12in 100+48

100+00

INSTALL ADA RAMP

EXISTING SIGN TO RELOCATE 2' FROM

BACK OF SIDEWALK & 2' FROM BUS PAD

INSTALL CONCRETE BUS PAD (8.5'x8')

SEE B-1 FOR DETAILS

PRESERVE AND PROTECT

FIRE HYDRANT

D-1 A

PROTECT & PRESERVE

UTILITY BOXES

INSTALL CONCRETE FLATWORK (32 SQFT.)

AROUND EXISTING BOXES AND UTILITIES

98+23 98+50 99+00 99+50 100+00 100+50 101+00

SLOPE = 9.20%

I =

+0 0.

I =

+4 8.

O F

M , U

N G

M M

U N

SCALE: 1" = 20' (11"x 17" SHEET SIZE)

\2 5-

B U

W \D

N \D

W G\

\2 5-

.D W

2' ASPHALT PATCH

5' SIDEWALK

KPDMDM

W S

RD-1

N U

TBC

B D-

D- 1B

SS 8in

15in

8i n

W 8in

W 12in

W 12in W 12in

W 12in

100+48

D- 1C

D-1

203+99

300+00

301+38

199+50 200+00 200+50 201+00 201+50 202+00 202+50 203+00 203+50 204+00 204+50 205+00

SLOPE = 9.00%

SLOPE = -5.63%

SLOPE = 1.71%

SLOPE = 8.50%

I =

+0 0.

06 VP

I =

+7 5.

I =

+9 9.

PVI STA: 203+00.00

PVI ELEV: 4704.81

K: 14.72

LVC: 100.00

O F

M , U

N G

M M

U N

SCALE: 1" = 40' (11"x 17" SHEET SIZE)

\2 5-

B U

W \D

N \D

W G\

\2 5-

.D W

INSTALL ADA RAMP

REMOVE AND REPLACE

225' OF GUARDRAIL

PROTECT AND PRESERVE

ELECTRICAL MANHOLE (2)

INSTALL ADA RAMP KPDMDM

W S

RD-2

N U

5' SIDEWALK

7’ MONOLITHIC CURB,

GUTTER, AND SIDEWALK

(THICKENED EDGE)

2' ASPHALT PATCH

PROTECT & PRESERVE STREETLIGHT

8i n

2i n

W 12in W 12in

D- 1C

203+99

300+00

301+38

299+50 300+00 300+50 301+00 301+50 302+00

I =

+0 0.

I =

+4 3.

PVI STA: 300+25.00

PVI ELEV: 4705.61

K: 4.72

LVC: 30.00

SLOPE = 3.50%

SLOPE = -2.86%

O F

M , U

N G

M M

U N

SCALE: 1" = 20' (11"x 17" SHEET SIZE)

\2 5-

B U

W \D

N \D

W G\

\2 5-

.D W

2' ASPHALT PATCH

7’ MONOLITHIC CURB,

GUTTER, AND SIDEWALK

(THICKENED EDGE)

INSTALL ADA RAMP

EXISTING SIGN

KPDMDM

W S

RD-3

N U

REMOVE AND REPLACE

225' OF GUARDRAIL

100+48

100+00

4670.40

4670.24

4671.02

4671.18

-2.0%

-9.2%

KPDMDM

W S

B-1

SCALE: 1" = 10' (11"x 17" SHEET SIZE)

\2 5-

B U

W \D

N \D

W G\

\2 5-

.D W

N U

COORDINATE SIGN RELOCATION WITH UTA

CONCRETE BUS PAD (8.5' x 8')

8.00'

8.50'

O F

M , U

N G

M M

U N

NOTES:

1. CUT ASPHALT T-PATCH TO WIDTH OF TRENCH, CONSTRUCT PIPELINE & RESTORE SUB-SURFACE. THEN CUT ASPHALT 12" WIDER THAN THE TRENCH ON EACH SIDE. REMOVE ASPHALT & FINISH RESTORATION. IF TRENCH WALLS COLLAPSE OR WIDEN CUT 12" FROM THAT NEW FINAL WIDTH.

2. LONGITUDINAL EDGE OF A ROADWAY PATCH SHALL BE CUT TO THE NEAREST SEAM OR ROAD STRIPING (AND/OR OUT OF THE WHEEL-PATH OF VEHICLES.

3. NEW TRENCHES WITHIN 10 FT OF ONE ANOTHER SHALL BE COMBINED INTO A SINGLE PATCH.

4. PATCHES EXTENDING MORE THAN 3 4 OF A ROADWAYS WIDTH SHALL BE EXTENDED TO THE FULL WIDTH OF THE ROAD (GUTTER TO GUTTER). WHEN

TRENCHING IS WITHIN 24" OF A CURB AND GUTTER THE REMOVAL OF THE SURFACE LAYERS MUST BE EXTENDED ALL THE WAY TO THE LIP OF GUTTER.

5. PLACE ASPHALT CONCRETE IN LIFTS NO GREATER THAN 3", OR LESS THAN 2".

6. T-PATCH REQUIRED FOR ALL FINAL ASPHALT PAVEMENT RESTORATION.

7. ASPHALT THICKNESS WILL MATCH THE EXISTING ASPHALT THICKNESS PLUS 1", WITH A MINIMUM OF 4". IF EXISTING ASPHALT THICKNESS IS 6" OR

GREATER, THEN THE ASPHALT PATCH WILL MATCH THE EXISTING THICKNESS.

8. LIMIT LENGTH OF OPEN TRENCHES TO 200 LINEAL FEET DAY OR NIGHT.

BACKFILL IN ROADWAYS OR PARKING AREAS BACKFILL FOR OUTSIDE OF ROADWAYS OR PARKING AREAS

GRADATION

NON-LOAD

LOAD

ROADWAY

TOP SOIL

REUSE

SPOILS

BACKFILL

UTBC/

SUBBASE

ZONE

TYPE

90%

95%

-6"

-3/4"(UTBC)

-3" (SUBBASE)

NOT

SPECIFIED

NOT

SPECIFIED

MAX 12"

COMPACTION

BACK FILL MATERIAL

LIFT THICKNESS

AASHTO T-180

TEST

O F

M , U

N G

M M

U N

5' SIDEWALK

N.T.S.

7’ MONOLITHIC CURB, GUTTER, AND

SIDEWALK (THICKENED EDGE)

N.T.S.

TRENCH DETAILS

N.T.S.

\2 5-

B U

W \D

N \D

W G\

.D W

2'-0"

24" CONCRETE CURB & GUTTER

REQ'D. SEE RW-1.

5' SIDEWALK

R = 1/2"

DOWEL INTO EXITING

CURB & GUTTER

#4 GRADE 60 REBAR

AT 24" O.C.

4" MIN.

COMPACTED

UTBC REQ'D

SUBBASE TO BE A MINIMUM

OF 6" OF A-1 GRADED

MATERIAL. REMOVAL OF

EXISTING MATERIAL AS

DETERMINED BY CITY

ENGINEER.

MINIMUM 5" THICK 2' WIDE

ASPHALT PATCH

EXISTING ROADWAY

SURFACE

4" 3" 9"

2'-0"

24" CONCRETE

CURB &

GUTTER REQ'D.

SEE RW-1.

8" THICKENED EDGE

R = 1/2"

4" MIN.

COMPACTED

UTBC REQ'D

SUBBASE TO BE A MINIMUM

OF 6" OF A-1 GRADED

MATERIAL. REMOVAL OF

EXISTING MATERIAL AS

DETERMINED BY CITY

ENGINEER.

MINIMUM 5" THICK 2' WIDE

ASPHALT PATCH

4" MIN. COMPACTED

UTBC REQ'D

2'-0"

EXISTING 24"

CONCRETE

CURB &

GUTTER

DOWEL INTO EXITING

CURB & GUTTER

#4 GRADE 60 REBAR

AT 24" O.C.

4" MIN.

COMPACTED

UTBC REQ'D

SUBBASE TO BE A MINIMUM OF 6" OF

A-1 GRADED MATERIAL. REMOVAL OF

EXISTING MATERIAL AS DETERMINED

BY CITY ENGINEER.

REMOVE & DISPOSE OF EXISTING GUARDRAIL

INSTALL NEW MIDWEST 31 INCH W-BEAM GUARDRAIL

SEE UDOT 2027 STANDARD DRAWINGS

REMOVE & DISPOSE OF

EXISTING CURB & GUTTER

EXISTING ROADWAY

SURFACE

5' SIDEWALK

KPDMDM

N U

D-1

RELANDSCAPE COBBLE

TO TOP OF SIDEWALK

4" - 6" COBBLE 12" THICK

REMOVE & DISPOSE OF

EXISTING ASPHALT

REMOVE & DISPOSE OF

EXISTING ASPHALT

LANDSCAPING

THICKENED EDGE

VARIES 8" TO 20"

#4 GRADE 60

REBAR

AT 24" O.C.

REMOVE & EXPOSE

OF EXISTING CURB &

GUTTER

7’ MONOLITHIC CURB, GUTTER, AND

SIDEWALK (THICKENED EDGE)

N.T.S.

4'0" RAMP AT 2% GRADE FROM THE

BACK OF SIDEWALK TO THE EDGE OF

THE DETECTABLE WARNING AREA 2'-0"

DETECTABLE

WARNING

AREA AT 8.33%

MAX. GRADE

6" AREA AT

8.33%

GRADE

1'-6"

GUTTER AT

5% MAX

GRADE

15' RADIUS STANDARD

2% MAX.

STANDARD 6'

SIDEWALK, CURB, &

GUTTER

FLA

RAMP

DOME SPACING SHALL NOT

EXCEED 2.4" O.C AND SHALL

NOT BE LESS THAN 1.6" O.C

10-1/2"7"

3-1/2"

1-1/2"

NOTES:

1. ANY MODIFICATIONS TO THIS STANDARD MUST BE APPROVED BY THE OREM CITY ENGINEER.

2. THE FLARES SHALL NOT EXCEED 8.33% GRADE.

3. THE MINIMUM DISTANCE FROM THE BACK OF SIDEWALK TO THE FLOW LINE OF THE GUTTER

SHALL BE 6'-6" THROUGH THE RAMP.

4. THE RAMP SHALL NOT EXCEED A 2% GRADE.

5. WITH THE EXCEPTION OF THE DETECTABLE WARNING AREA, ALL CONCRETE SURFACES ON

THE RAMP AND FLARES SHALL BE BROOMED ROUGH.

6. THE RAMP & FLARES SHALL BE VISUALLY CONTRASTING.

7. A 7" CONCRETE THICKNESS SHALL BE REQUIRED ON THE RADIUS.

8. A 4" CONCRETE THICKNESS SHALL BE REQUIRED IN THE WALKWAY OUTSIDE OF THE RADIUS

9. WORK FOR ADA RAMP ITEM INCLUDES ALL CURB AND GUTTER, DOWELS, DETECTABLE

WARNING SYMBOL AND FLATWORK FROM THE PC TO THE PT.

10. COLOR OF ADA DETECTABLE WARNING STRIPS / TRUNCATED DOMES SHALL BE YELLOW.

11. TRUNCATED DOMES ON UDOT STREET FRONTAGES ARE REQUIRED TO BE BOLT DOWN TILES.

SECTION A-A

THROUGH RAMP

DETECTABLE WARNINGS

RAISED TRUNCATED DOMES

MAX 2%

SUBBASE TO BE A MINIMUM OF 6" OF A-1

GRADATED MATERIAL. REMOVAL OF EXISTING

MATERIAL AS DETERMINED BY CITY ENGINEER.

4" MIN. COMPACTED UTBC REQ'D

PC - SIDEWALK JOINT (18" STEEL

TEMPLATE OR COLD JOINT)

8.33% MAXIMUM SLOPE IN

THE FLARES AND THE

DETECTABLE WARNING

AREA MIN. 4' WIDE LANDING

PT - SIDEWALK JOINT

(1/8" STEEL TEMPLATE

OR COLD JOINT)

WORK FOR ADA RAMP ITEM INCLUDES ALL CURB

AND GUTTER, DOWELS, DETECTABLE WARNING

SYMBOL AND FLATWORK FROM THE PC TO THE PT

0.2"

0.5" OR 50%

OF BOTTOM

0.9" MIN.

1.4" MAX.

TRUNCATED DOMES (SEE NOTE 11)

O F

M , U

N G

M M

U N

ADA RAMP

N.T.S.

\2 5-

B U

W \D

N \D

W G\

.D W

KPDMDM

N U

D-2

NOTES:

1. THIS IS ONLY A GENERAL DETAIL OF A MODIFIED ADA RAMP. EVERY MODIFIED

RAMP MUST BE ADJUSTED ACCORDINGLY TO FIT TO THE CORNER ON WHICH IT

IS INSTALLED.

2. ANY MODIFICATIONS TO THIS STANDARD MUST BE APPROVED BY THE PROJECT

ENGINEER.

3. THE FLARES SHALL NOT EXCEED 8.33% GRADE.

4. THE MINIMUM DISTANCE FROM THE BACK OF CURBWALL TO THE FLOW LINE OF

THE GUTTER SHALL BE 6'-6" THROUGH THE RAMP.

5. THE RAMP SHALL NOT EXCEED A 2% GRADE.

6. WITH THE EXCEPTION OF THE DETECTABLE WARNING AREA, ALL CONCRETE

SURFACES ON THE RAMP AND FLARES SHALL BE BROOMED ROUGH.

7. THE RAMP & FLARES SHALL BE VISUALLY CONTRASTING.

8. A 7" CONCRETE THICKNESS SHALL BE REQUIRED ON THE RADIUS.

9. A 4" CONCRETE THICKNESS SHALL BE REQUIRED IN THE WALKWAY OUTSIDE

OF THE RADIUS.

10. CURB WALL CAN BE POURED MONOLITHIC WITH THE RAMP.

11. COLOR OF ADA DETECTABLE WARNING STRIPS / TRUNCATED DOMES SHALL BE

YELLOW

4'-0" RAMP FROM THE BACK OF

SIDEWALK INCLUDING

DETECTABLE WARNING AND

TRACE AREA.

2% GRADE

6" SMOOTH AREA

AT 8.33%

GRADE

1'-6"

GUTTER AT 5% MAX

GRADE

DOME SPACING SHALL NOT

EXCEED 2.4" O.C AND SHALL

NOT BE LESS THAN 1.6" O.C

0.5" OR 50%

OF BOTTOM

0.9" MIN; 1.4" MAX

CURB

WALL

5' FLARE MIN.

4' RAMP

5' FLARE

0.2"

HEIGHT VARIES

6'-6"

1-1/2"

DETECTABLE WARNINGS

RAISED TRUNCATED DOMES

N A

-A

R O

U G

H R

MIN.

SUBBASE TO BE A MINIMUM OF 6" OF A-1

GRADATED MATERIAL. REMOVAL OF EXISTING

MATERIAL AS DETERMINED BY CITY ENGINEER.

4" MIN. COMPACTED UTBC REQ'D

8.33% MAXIMUM

SLOPE IN THE

FLARES

RADIUS WILL

VARY

FOR EACH RAMP

CURB

WALL 6"

8.33% MAXIMUM

SLOPE IN THE

FLARES

MODIFIED ADA RAMP

N.T.S.

QUARTER-ROUND ADA RAMP

N.T.S.

K C

U R

B W

G U

W L

DETECTABLE

WARNING

4' S

6" C

U R

" G U

2% M

VARIES

24" CURB & GUTTER

8.33% MAX (62")

6" FACE OF CURB

SUBBASE TO BE A MINIMUM OF 6" OF A-1

GRADATED MATERIAL. REMOVAL OF EXISTING

MATERIAL AS DETERMINED BY CITY ENGINEER.

4" MIN. COMPACTED UTBC REQ'D

N O

R O

A D

E W

/ T R

U N

O M

N C

D O

O N

U D

O T

A R

E R

T O

B E

D O

W N

N A

-A

R O

U G

H R

TRUNCATED DOMES (SEE NOTE 2)

2% SLOPE (43")

File details come from the government source that posted it. Updated Jul 30, 2026.