Attachment 5 - Drawings.pdf

PDF 3 MB Posted Jul 28, 2026

Attached to: Midgley Bridge Observation Site Parking Lot
Solicitation number: 127EAX26Q0068
Issued by: Department of Agriculture Forest Service

About this file

Written by GovTribe AI · Jul 28, 2026

This document is a set of construction drawings for the Midgley Bridge Observation Site Parking Lot project located in the Coconino National Forest, Red Rock Ranger District, Arizona. The project involves constructing a parking lot with associated infrastructure adjacent to U.S. Highway 89A.

The project scope includes constructing approximately 18.00 feet of asphalt pavement parking stalls (with 9.00-foot typical widths), concrete curbing, concrete ditching, and a concrete apron. The design incorporates one accessible parking space with van designation signage and standard parking lot striping (4-inch width, 45-degree angle spacing). Site improvements include traffic delineators, "No Parking Any Time" signs, and accessible parking symbols. The drainage system comprises three proposed catch basins connected by approximately 148 linear feet of 18-inch corrugated metal pipe (CMP) storm drain at 1.00 percent slope, with outfall to an existing channel via a concrete headwall structure. Grading and fill requirements necessitate compaction to 90-95 percent Proctor density depending on location. The contractor is responsible for all demolition of existing asphalt pavement through saw-cutting, removal of existing signage and gabion structures, and site preparation. Material specifications include hot-mix Type II asphalt conforming to FP-24 standards, 6-inch aggregate base course, reinforced concrete curbing and catch basins, and Class I or II bedding material for pipe installation. A laydown area measuring approximately 140 feet by 60 feet is designated for contractor material storage and equipment parking during the period of performance.

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Other files

File	Type	Posted
127EAX26Q0068 - Midgley Observation Site Parking Lot.pdf	PDF	Jul 28, 2026
127EAX26Q0068 - Midgley Observation Site Parking Lot.pdf	PDF	Jul 28, 2026
Attachment 3 - Schedule of Items.xlsx	XLSX spreadsheet	Jul 28, 2026
Attachment 4 - Fire Plan.docx	DOCX document	Jul 28, 2026
Attachment 2 - Specifications.docx	DOCX document	Jul 28, 2026
Attachment 6 - Wage Determination.pdf	PDF	Jul 28, 2026
Attachment 1 - Statement of Work.docx	DOCX document	Jul 28, 2026

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FOREST LOCATION MAP

PROJECT LOCATION MAP

TRAVEL DIRECTIONS:

SHEET OF

United States Department of Agriculture Forest Service

MIDGLEY BRIDGE OBSERVATION SITE

FROM THE COCONINO NATIONAL FOREST SUPERVISOR'S OFFICE, TAKE WEST FOREST MEADOWS

STREET AND TURN RIGHT ONTO S WOODLANDS VILLAGE BLVD FOR 0.4 MI, THEN TURN RIGHT ONTO S BEULAH BLVD FOR 23 MI. THIS WILL BRING YOU TO THE MIDGLEY BRIDGE OBSERVATION SITE.

LATITUDE: 34.885496, LONGITUDE: -111.741570.

PARKING LOT

RECOMMENDED BY:

APPROVED:

FOREST ENGINEER

DISTRICT RANGER DATE

DATE

DIRECTOR OF ENGINEERING DATE

FOREST SUPERVISOR DATE

RO FACILITIES PROGRAM MANAGER DATE

5/2 2/2

6 1 3:

C :\U

\73

S-

\20

ARIZONA

COCONINO COUNTY

R03 SOUTHWESTERN REGION

COCONINO NATIONAL FOREST

RED ROCK RANGER DISTRICT

INDEX OF SHEETS

SHEET SHEET TITLE DATE

G-01 COVER SHEET

C-01 SITE PLAN

C-01.1 LAYDOWN AREA

C-01.2 DEMOLITION PLAN

C-02 GRADING PLAN

C-03 DRAINAGE PLAN

C-04.0 CONSTRUCTION DETAILS

C-04.1 CONSTRUCTION DETAILS

C-04.2 STORM DRAIN OUTFALL DETAILS

TRAILHEAD

ENTRANCE

U.S. HIGHWAY 89A

CONCRETE

CURB

CONCRETE

DITCH

9.00'

(TYP.)

18.00'

(TYP.)

CONCRETE

APRON

"NO PARKING ANY TIME" SIGN (R7-1

W/R7-201AP)

"NO PARKING ANY TIME" SIGN (R7-1

W/R7-201AP)

"NO PARKING ANY TIME" SIGN (R7-1

W/R7-201AP)

"NO PARKING ANY TIME" SIGN (R7-1

W/R7-201AP)

"ACCESSIBLE PARKING - VAN" SIGN (R-XX)

TRAFFIC DELINIATOR (TYP.)

8.00'

(TYP.)

4.0'

(TYP.)

24.00'

9.00'

7.00'

18.00'

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

5/2 2/2

6 1 5:

C :\U

\73

S-

\20

N 3.D

W G;

(R03)

SOUTHWEST REGION

MIDGLEY BRIDGE

TRAIL HEAD

PARKING LOT

COCONINO

NATIONAL FOREST

RED ROCK RANGER DISTRICT

SITE PLAN

05/22/2026

A.PORRAS

A. PORRAS C-01

002 009

GENERAL NOTES:

1. CONTRACTOR IS RESPONSIBLE FOR ALL MATERIALS, LABOR, EQUIPMENT,

AND PERMITS OR APPROVALS FROM AUTHORITIES HAVING JURISDICTION

(AHJ) REQUIRED TO COMPLETE THE WORK DESIGNATED IN THESE PLANS

AND ELSEWHERE IN THE ASSOCIATED CONTRACT DOCUMENTS.

2. CONTRACTOR SHALL COMPLY WITH ALL FEDERAL, STATE, AND LOCAL LAWS,

ORDINANCES, AND REGULATIONS.

3. CONTRACTOR IS RESPONSIBLE FOR SECURING ALL MATERIALS, EQUIPMENT,

IMPROVEMENTS, AND HAZARDOUS CONDITIONS AT THE PROJECT SITE FROM

ACCESS BY THE GENERAL PUBLIC.

4. CONTRACTOR IS RESPONSIBLE FOR ADMINISTERING ANY

PERMITS/APPROVALS/TRAFFIC CONTROL PLANS/SCHEDULES/INSPECTION AS

REQUIRED BY THE ARIZONA DEPARTMENT OF TRANSPORTATION (ADOT).

WORK SHALL NOT COMMENCE WITHIN THE HIGHWAY 89A RIGHT-OF-WAY

UNTIL ADOT HAS GIVEN APPROVAL TO COMMENCE WORK. CONTRACTOR

SHALL COMPLY WITH ALL REQUIREMENTS IMPOSED BY ADOT.

5. TOPOGRAPHIC DATA IS PROVIDED FOR THE CONTRACTORS CONVENIENCE,

THE TOPOGRAPHIC DATA IS NOT CERTIFIED AND SHALL NOT BE RELIED UPON

FOR ACCURACY. EXISTENCE OF PHYSICAL BENCHMARKS SHOWN SHALL NOT

BE RELIED UPON

6. A GEOTECHNICAL INVESTIGATION HAS NOT BEEN COMPLETED FOR SOILS

LOCATED AT THIS SITE. THE CONTRACTOR SHOULD EXPECT TO ENCOUNTER

ROCK AT THIS SITE. CONTRACTOR SHALL BE RESPONSIBLE FOR REMOVAL OF

ANY ROCK/SOIL THAT IS REQUIRED TO CONSTRUCT THE IMPROVEMENTS AS

SHOWN ON THESE DRAWINGS.

7. CONTRACTOR SHALL ACHIEVE HORIZONTAL DIMENSIONS OF

PAVEMENT/STRIPING AS SHOWN ON THESE DRAWINGS.

8. CONTRACTOR MAY ELECT TO DEVIATE FROM THE PAVEMENT

GRADES/ELEVATIONS SHOWN ON THIS PLAN. ALL DEVIATIONS SHALL BE

SUBMITTED TO THE COR IN WRITING. THE MINIMUM ALLOWABLE SLOPE ON

ASPHALT PAVEMENT SHALL BE 1.0%, THE MAXIMUM ALLOWABLE ALGEBRAIC

DIFFERENCE IN SLOPE OF ASPHALT PAVEMENT SHALL BE 10.0% FOR DRIVE

AISLE AND PARKING AREAS. MAXIMUM SLOPE OF THE DRIVE AISLE AND

PARKING STALLS SHALL BE 8.0% MAXIMUM SLOPE OF DITCHES SHALL BE

33.3% CROSS SLOPE. EDGE OF ASPHALT SHALL MATCH EXISTING PAVEMENT

TO REMAIN IN GRADE AND ALIGNMENT. CONTRACTOR SHALL MAINTAIN

POSITIVE DRAINAGE THROUGHT ENTIRE PROJECT SITE DURING

CONSTRUCTION AND AT FINAL CONDITION.

9. CONTRACTOR IS RESPONSIBLE FOR LIMITING EROSION AND SEDIMENT

TRANSPORT DUE TO CONSTRUCTION ACTIVITIES. ANY SOIL

TRACK-OUT/TRANSPORT ONTO THE ADJACENT ROADWAY SHALL BE

REMOVED AND RETURNED TO PROJECT LIMITS OR LAWFULLY DISPOSED OF

OFF-SITE.

10. CONTRACTOR IS RESPONSIBLE FOR REPAIR OR REPLACEMENT OF ANY

DAMAGE TO EXISTING IMPROVEMENTS CAUSED BY THE DIRECT OR INDIRECT

ACTIONS OF THE CONTRACTOR OR THEIR SUBCONTRACTORS. REPAIR OR

REPLACEMENT MUST MATCH OR EXCEED THE CONDITIONS/PERFORMANCE

OF THE IMPROVEMENT AT COMMENCEMENT OF CONTRACT WORK.

11. PROJECT SITE IS LIMITED ON SPACE. AT NO TIME SHALL CONTRACTOR

CAUSE TRAFFIC HAZARDS DUE TO TRUCKS ENTERING/LEAVING SITE,

DELIVERIES TO THE SITE, STORAGE OF EQUIPMENT OR MATERIALS, OR ANY

OTHER ACTIONS THAT MAY CAUSE DISRUPTION OF TRAFFIC FLOW ON THE

ADJACENT HIGHWAY. CONTRACTOR SHALL COMPLY WITH ALL REGULATIONS

CONTAINED IN THE MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES

(MUTCD), AS ADOPTED BY ADOT.

Feet 0 20 40

LEGEND

PROPOSED ASPHALT PAVEMENT

PROPOSED SIGN W/POST

PROPOSED TRAFFIC DELINEATOR

PROPOSED EDGE OF ASPHALT

PROPOSED CONCRETE CURB

PROPOSED PARKING LOT STRIPING

(4 INCH WIDTH, SPACED 18 INCHES

ON CENTER, 45°ANGLE)

PROPOSED ACCESSIBLE

PARKING SYMBOL STRIPING

PROPOSED PARKING LOT

STRIPING (WHITE, 4 INCH WIDTH)

PROPOSED CONCRETE PAVEMENT

EXISTING FENCE

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PROPOSED LAYDOWN AREA PROPOSED PROJECT AREA

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

5/2 2/2

6 1 5:

C :\U

\73

S-

\20

N 3.D

W G;

(R03)

SOUTHWEST REGION

MIDGLEY BRIDGE

TRAIL HEAD

PARKING LOT

COCONINO

NATIONAL FOREST

RED ROCK RANGER DISTRICT

LAYDOWN AREA

05/22/2026

A.PORRAS

A. PORRAS C-01.1

003 009

GENERAL NOTES:

1. LAYDOWN AREA IS FOR STORAGE OF MATERIALS AND EQUIPMENT, AND

PARKING FOR VEHICLES DIRECTLY RELATED TO THE CONTRACT WORK

DURING THE PERIOD OF PERFORMANCE.

2. CONTRACTOR SHALL RECEIVE PERMISSION FROM THE COR PRIOR TO USE

OR STORAGE OF MATERIALS IN THE LAYDOWN AREA.

3. ALL EQUIPMENT AND MATERIALS MUST BE REMOVED FROM THE LAYDOWN

AREA AND PROJECT AREA PRIOR TO CONTRACT CLOSE OUT.

4. CONTRACTOR IS RESPONSIBLE FOR SECURING ALL MATERIALS, EQUIPMENT,

AND HAZARDOUS CONDITIONS AT THE LAYDOWN AREA, FROM ACCESS TO

THE GENERAL PUBLIC.

5. CONTRACTOR PERSONNEL ARE NOT AUTHORIZED TO USE HIGHWAY 89A FOR

AS PEDESTRIANS.

6. CONTRACTOR SHALL NOT DISTURB THE EXISTING GRADE OR VEGETATION

LOCATED AT THE LAYDOWN AREA.

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U.S. HIGHWAY 89A

EXISTING GATE

(TO REMAIN)

CONTRACTOR SHALL SAW CUT FULL DEPTH

OF ASPHALT COURSE ALONG JOINT

BETWEEN HIGHWAY AND PARKING LOT

PAVEMENT.

CONTRACTOR SHALL REMOVE ALL

ASPHALT CONCRETE

EXISTING SIGN AND GABION SHALL

BE REMOVED

GENERAL NOTES:

1. CONTRACTOR IS RESPONSIBLE FOR ALL MATERIALS, LABOR, EQUIPMENT,

AND PERMITS OR APPROVALS FROM AUTHORITIES HAVING JURISDICTION

(AHJ) REQUIRED TO COMPLETE THE WORK DESIGNATED IN THESE PLANS

AND ELSEWHERE IN THE ASSOCIATED CONTRACT DOCUMENTS.

2. CONTRACTOR SHALL COMPLY WITH ALL FEDERAL, STATE, AND LOCAL LAWS,

ORDINANCES, AND REGULATIONS.

3. CONTRACTOR IS RESPONSIBLE FOR SECURING ALL MATERIALS, EQUIPMENT,

IMPROVEMENTS, AND HAZARDOUS CONDITIONS AT THE PROJECT SITE FROM

ACCESS BY THE GENERAL PUBLIC.

4. CONTRACTOR IS RESPONSIBLE FOR ANY PERMITS, APPROVALS, FEES,

TRAFFIC CONTROL PLANS, SCHEDULES, AND INSPECTION AS REQUIRED BY

THE ARIZONA DEPARTMENT OF TRANSPORTATION (ADOT). WORK SHALL NOT

COMMENCE WITHIN THE HIGHWAY 89A RIGHT-OF-WAY UNTIL ADOT HAS GIVEN

APPROVAL TO COMMENCE WORK. CONTRACTOR SHALL COMPLY WITH ALL

REQUIREMENTS IMPOSED BY ADOT.

6. CONTRACTOR SHALL ADHERE TO ALL REQUIREMENTS OF THE ARIZONA

POLLUTANT DISCHARGE ELIMINATION SYSTEM (AZPDES) (ADMINISTERED BY

THE ARIZONA DEPARTMENT OF ENVIRONMENTAL QUALITY (ADEQ)). THESE

REQIERMENTS INCLUDE BUT ARE NOT LIMITED TO; A STORM WATER

POLUTION PREVENTION PLAN (SWPPP), NOTICE OF INTENT (NOI),

CONSTRUCTION GENERAL PERMIT (CGP) AND ALL ASSOCIATED FEES, AND

INSTALLATION AND MAINTENANCE OF ALL BEST MANAGEMENT PRACTICES

(BMP) DURING THE DURATION OF THE CONSTRUCTION ACTIVITIES AND

AZPDES PERMIT PERIOD.

7. CONTRACTOR IS RESPONSIBLE FOR LIMITING EROSION AND SEDIMENT

TRANSPORT DUE TO CONSTRUCTION ACTIVITIES. ANY SOIL

TRACK-OUT/TRANSPORT ONTO THE ADJACENT ROADWAY SHALL BE CLEANED

AND RETURNED TO PROJECT LIMITS OR LAWFULLY DISPOSED OF OFF-SITE.

8. A GEOTECHNICAL INVESTIGATION HAS NOT BEEN COMPLETED FOR SOILS

LOCATED AT THIS SITE. THE CONTRACTOR SHOULD EXPECT TO ENCOUNTER

ROCK AT THIS SITE. CONTRACTOR SHALL BE RESPONSIBLE FOR REMOVAL OF

ANY ROCK/SOIL THAT IS REQUIRED TO CONSTRUCT THE IMPROVEMENTS AS

SHOWN ON THESE DRAWINGS.

9. CONTRACTOR IS RESPONSIBLE FOR REPAIR OR REPLACEMENT OF ANY

DAMAGE TO EXISTING IMPROVEMENTS CAUSED BY THE DIRECT OR INDIRECT

ACTIONS OF THE CONTRACTOR OR THEIR SUBCONTRACTORS. REPAIR OR

REPLACEMENT MUST MATCH OR EXCEED THE CONDITIONS/PERFORMANCE

OF THE IMPROVEMENT AT COMMENCEMENT OF CONTRACT WORK.

10. PROJECT SITE IS LIMITED ON SPACE. AT NO TIME SHALL CONTRACTOR

CAUSE TRAFFIC HAZARDS DUE TO TRUCKS ENTERING/LEAVING SITE,

DELIVERIES TO THE SITE, STORAGE OF EQUIPMENT OR MATERIALS, OR ANY

OTHER ACTIONS THAT MAY CAUSE DISRUPTION OF TRAFFIC FLOW ON THE

ADJACENT HIGHWAY. CONTRACTOR SHALL COMPLY WITH ALL REGULATIONS

CONTAINED IN THE MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES

(MUTCD), AS ADOPTED BY ADOT.

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

(R03)

SOUTHWEST REGION

MIDGLEY BRIDGE

TRAIL HEAD

PARKING LOT

COCONINO

NATIONAL FOREST

RED ROCK RANGER DISTRICT

DEMOLITION PLAN

05/14/2026

A.PORRAS

A. PORRAS

X.XXX

C-01.2 001 100

Feet 0 20 40

LEGEND

ASPHALT PAVEMENT

TO BE REMOVED

PROPOSED SAW CUT

EXISTING FENCE

EXISTING EDGE OF ASPHALT

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996.00

997.00

998.00

999.00

1000.00

1001.00

995.50

996.50

997.50

998.50

999.50

1000.50

995.65

995.72

995.81

995.94

996.14

996.65

EP997.47

997.98

998.68

998.84

999.75

1000.52

1001.10

1001.22

1001.00

1001.16

1000.79

1000.80

999.87

999.31

999.15

999.07

998.74

998.48

1000.50

1000.77

1000.25

999.96

999.42

999.58

999.44

998.94

998.71

998.68

998.10 TP

998.11

998.25

997.28

998.06

997.62

996.59

996.67

997.54

997.60

996.79

995.96

995.43 TP

996.40

995.77

995.55

995.57

995.73

996.04

996.17

995.18

995.16

1000.69

1001.03

1001.12

1001.52

1001.47

1001.12

1000.44

999.53

998.81

998.17

996.40

995.03

995.94

996.08

996.01

996.09

996.17

996.25

996.34

996.44

EP EP

996.84

996.48

996.35

996.25

996.29

995.90

996.18

995.42

995.48

1001.18

1001.06

1001.38

1001.18TP

1001.44

1001.02

1001.11

1001.47

1002.31

1001.09

1001.55

1002.38

1000.66

1001.20

1001.74

999.83

1000.34

1000.88

999.13

999.44

999.88

998.48

998.73

999.01

998.22

998.78

999.53

1000.37

998.04

998.54

999.08

997.86

998.32

998.84 997.74

998.40

999.06

997.21

998.23 996.26

996.77

997.18 996.33

997.82

996.31

996.80

-6 .9

1001.0

1002.0

1001.5

U.S. HIGHWAY 89A

999.0

1000.0

998.5

999.5

1000.5

996.0

997.0

998.0

996.5

997.5

-7 .0

-6 .1

-6 .3

-6 .5

-9 .7

-1 0.2

-6

-2 .5

-1.2%

-2 .4

% -2.6%

-3 .8

-3.7%

-4 .2%

-5 .7

-2.9% -2

996.00

997.08

998.22

999.18

998.25

997.28

996.20

999.11

999.02

999.12

999.10

-1 .0

-1.2%

995.50

998.01

999.73

999.34

998.95

995.55

995.47

995.39

995.21

995.04 994.8

994.7

994.6

994.3

993.2

992.9

992.3

991.5

989.2

989.5

987.2

985.2

985.0983.6

983.3

981.8

981.7

996.06'

995.36 995.75

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

5/2 2/2

6 1 5:

C :\U

\73

S-

\20

N 3.D

W G;

(R03)

SOUTHWEST REGION

MIDGLEY BRIDGE

TRAIL HEAD

PARKING LOT

COCONINO

NATIONAL FOREST

RED ROCK RANGER DISTRICT

GRADING AND

DRAINAGE PLAN

05/22/2026

A.PORRAS

A. PORRAS C-02

005 009

LEGEND

EXISTING MAJOR CONTOUR

PROPOSED SIGN W/POST

PROPOSED TRAFFIC DELINEATOR

PROPOSED EDGE OF ASPHALT

PROPOSED CONCRETE CURB

PROPOSED PARKING LOT STRIPING

(4 INCH WIDTH, SPACED 18 INCHES

ON CENTER, 45°ANGLE)

PROPOSED PARKING LOT

STRIPING (WHITE, 4 INCH WIDTH)

EXISTING MINOR CONTOUR

EXISTING FENCE

PROPOSED MAJOR CONTOUR

PROPOSED MINOR CONTOUR

1000.52

1000.25

1001.74

EXISTING NATURAL GRADE

SPOT ELEVATION

EXISTING EDGE OF PAVEMENT

SPOT ELEVATION

EXISTING TOP OF PAVEMENT

SPOT ELEVATION

998.23PROPOSED SPOT ELEVATION

1001.0

1001.5

1000.00

1000.50

PROPOSED CATCH BASIN

PROPOSED STORM DRAIN

GENERAL NOTES:

1. CONTRACTOR IS RESPONSIBLE FOR ALL MATERIALS, LABOR, EQUIPMENT,

AND PERMITS OR APPROVALS FROM AUTHORITIES HAVING JURISDICTION

(AHJ) REQUIRED TO COMPLETE THE WORK DESIGNATED IN THESE PLANS

AND ELSEWHERE IN THE ASSOCIATED CONTRACT DOCUMENTS.

2. CONTRACTOR SHALL COMPLY WITH ALL FEDERAL, STATE, AND LOCAL LAWS,

ORDINANCES, AND REGULATIONS.

3. CONTRACTOR IS RESPONSIBLE FOR SECURING ALL MATERIALS, EQUIPMENT,

IMPROVEMENTS, AND HAZARDOUS CONDITIONS AT THE PROJECT SITE FROM

ACCESS BY THE GENERAL PUBLIC.

4. CONTRACTOR IS RESPONSIBLE FOR ADMINISTERING ANY

PERMITS/APPROVALS/TRAFFIC CONTROL PLANS/SCHEDULES/INSPECTION AS

REQUIRED BY THE ARIZONA DEPARTMENT OF TRANSPORTATION (ADOT).

WORK SHALL NOT COMMENCE WITHIN THE HIGHWAY 89A RIGHT-OF-WAY

UNTIL ADOT HAS GIVEN APPROVAL TO COMMENCE WORK. CONTRACTOR

SHALL COMPLY WITH ALL REQUIREMENTS IMPOSED BY ADOT.

5. TOPOGRAPHIC DATA IS PROVIDED FOR THE CONTRACTORS CONVENIENCE,

THE TOPOGRAPHIC DATA IS NOT CERTIFIED AND SHALL NOT BE RELIED UPON

FOR ACCURACY. EXISTENCE OF PHYSICAL BENCHMARKS SHOWN SHALL NOT

BE RELIED UPON

6. A GEOTECHNICAL INVESTIGATION HAS NOT BEEN COMPLETED FOR SOILS

LOCATED AT THIS SITE. THE CONTRACTOR SHOULD EXPECT TO ENCOUNTER

ROCK AT THIS SITE. CONTRACTOR SHALL BE RESPONSIBLE FOR REMOVAL OF

ANY ROCK/SOIL THAT IS REQUIRED TO CONSTRUCT THE IMPROVEMENTS AS

SHOWN ON THESE DRAWINGS.

7. CONTRACTOR MAY ELECT TO DEVIATE FROM THE PAVEMENT

GRADES/ELEVATIONS SHOWN ON THIS PLAN. ALL DEVIATIONS SHALL BE

SUBMITTED TO THE COR IN WRITING. THE MINIMUM ALLOWABLE SLOPE ON

ASPHALT PAVEMENT SHALL BE 1.0%, THE MAXIMUM ALLOWABLE ALGEBRAIC

DIFFERENCE IN SLOPE OF ASPHALT PAVEMENT SHALL BE 10.0% FOR DRIVE

AISLE AND PARKING AREAS. MAXIMUM SLOPE OF THE DRIVE AISLE AND

PARKING STALLS SHALL BE 8.0% MAXIMUM SLOPE OF DITCHES SHALL BE

33.3% CROSS SLOPE. ACCESSABLE PATH BETWEEN ACCESSIBLE PARKING,

TRAILHEAD ENTRANCE, AND RESTROOM SHALL HAVE A MAXIMUM RUNNING

SLOPE OF 5% AND MAXIMUM CROSS SLOPE OF 2%. EDGE OF ASPHALT SHALL

MATCH EXISTING PAVEMENT TO REMAIN IN GRADE AND ALIGNMENT.

CONTRACTOR SHALL MAINTAIN POSITIVE DRAINAGE THROUGHOUT ENTIRE

PROJECT SITE DURING CONSTRUCTION AND AT FINAL CONDITION.

8. CONTRACTOR IS RESPONSIBLE FOR LIMITING EROSION AND SEDIMENT

TRANSPORT DUE TO CONSTRUCTION ACTIVITIES. ANY SOIL

TRACK-OUT/TRANSPORT ONTO THE ADJACENT ROADWAY SHALL BE

REMOVED AND RETURNED TO PROJECT LIMITS OR LAWFULLY DISPOSED OF

OFF-SITE.

9. CONTRACTOR IS RESPONSIBLE FOR REPAIR OR REPLACEMENT OF ANY

DAMAGE TO EXISTING IMPROVEMENTS CAUSED BY THE DIRECT OR INDIRECT

ACTIONS OF THE CONTRACTOR OR THEIR SUBCONTRACTORS. REPAIR OR

REPLACEMENT MUST MATCH OR EXCEED THE CONDITIONS/PERFORMANCE

OF THE IMPROVEMENT AT COMMENCEMENT OF CONTRACT WORK.

10. PROJECT SITE IS LIMITED ON SPACE. AT NO TIME SHALL CONTRACTOR

CAUSE TRAFFIC HAZARDS DUE TO TRUCKS ENTERING/LEAVING SITE,

DELIVERIES TO THE SITE, STORAGE OF EQUIPMENT OR MATERIALS, OR ANY

OTHER ACTIONS THAT MAY CAUSE DISRUPTION OF TRAFFIC FLOW ON THE

ADJACENT HIGHWAY. CONTRACTOR SHALL COMPLY WITH ALL REGULATIONS

CONTAINED IN THE MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES

(MUTCD), AS ADOPTED BY ADOT.

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996.00

997.00

998.00

995.50

996.50

997.50

995.65

995.72

995.81

995.94

996.14

996.65

EP997.47

997.98

998.68

EP998.48

998.10 TP

998.11

998.25

997.28

998.06

997.62

996.59

996.67

997.54

997.60

996.79

995.96

995.43 TP

996.40

995.77

995.55

995.57

995.73

996.04

996.17

995.18

995.16

998.17

996.40

995.03

995.94

996.08

996.01

996.09

996.17

996.25

996.34

996.44

996.25

995.90

996.18

995.42

995.48

998.54

999.08

997.86

998.32

998.84 997.74

998.40

999.06

997.21

998.23 996.26

996.77

997.18 996.33

997.82

996.31

996.80

-6 .9

U.S. HIGHWAY 89A

998.5

996.0

997.0

998.0

996.5

997.5

-7 .0

-6 .1

-6 .3

-6 .5

-9 .7

-1 0.2

-6

-2 .5

-1.2%

-2 .4

% -2.6%

-3 .8

996.00

997.08

998.22 998.25

997.28

996.20

999.02

999.10

PROPOSED CATCH BASIN

TOP OF GRATE = 996.06

INV. (W) = 992.59'

PROPOSED 18" CMP @

1.00%

PROPOSED 18"

CMP

995.50

998.01

PROPOSED OUTFALL TO

DAYLIGHT

INV. = 990.92'

995.55

995.47

995.39

995.21

995.04

982.4

994.8 994.7

994.6

994.3

993.2

992.9

992.3

991.5

989.2

989.5

987.2

985.2

985.0983.6

983.3

981.8

981.7

996.06'

PROPOSED CATCH BASIN

TOP OF GRATE = 995.75'

INV. (E) = 992.23'

INV. (W) = 992.13'

PROPOSED CATCH BASIN

TOP OF GRATE = 995.36'

INV. (E) = 991.52'

INV. (W) =991.42'

PROPOSED

18" CMP @

1.00%

1+50

1+58

995.36 995.75

N (F

STATION (FEET)

ALIGNMENT - (1) PROFILE

-0+050+000+501+001+501+65

PROPOSED CATCH BASIN

TOP OF GRATE = 996.06

INV. (W) = 992.59'

PROPOSED OUTFALL TO

DAYLIGHT

INV. = 990.92'

PROPOSED CATCH BASIN

TOP OF GRATE = 995.75'

INV. (E) = 992.23'

INV. (W) = 992.13'

PROPOSED CATCH BASIN

TOP OF GRATE = 995.36'

INV. (E) = 991.52'

INV. (W) =991.42'

PROPOSED ~61 L.F. OF 18" CSP @ 1.00%

PROPOSED ~37 L.F. OF 18" CSP @ 1.00%

PROPOSED ~50 L.F. OF 18" CSP @ 1.00%

PROPOSED

FINISHED

SURFACE

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

5/2 2/2

6 1 5:

C :\U

\73

S-

\20

N 3.D

W G;

(R03)

SOUTHWEST REGION

MIDGLEY BRIDGE

TRAIL HEAD

PARKING LOT

COCONINO

NATIONAL FOREST

RED ROCK RANGER DISTRICT

STORM DRAIN

PLAN AND PROVILE

05/22/2026

A.PORRAS

A. PORRAS C-03

006 009

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SLOPE

(VARIES)

NOTES:

1. GRADE ADJACENT TO

PAVEMENT SHALL BE

BACKFILLED AND COMPACTED

TO 90 PERCENT PROCTOR.

0.50'

1.00'

VARIES

1.00'

3:1 MAX

EXISTING ASPHALT PAVEMENT

EXISTING AGGREGATE BASE

0.50'

MIN.

0.50' (MIN.)

BEDDING

1.00' (MIN.)

TOP OF PIPE TO NATURAL GRADE OR

TOP OF PIPE TO BOTTOM OF

AGGREGATE BASE COURSE

STORM SEWER/CULVERT

OUTSIDE DIAMETER

0.50'

1.00'

0.83'

AGGREGATE BASE COURSE

ASPHALT COURSE

HAUNCH BETWEEN

BOTTOM OF PIPE AND

SPRINGLINE

NATURAL GRADE

ASPHALT COURSE - 4.0"

AGGREGATE BASE COURSE - 6.0"

SUBGRADE

0.54'

0.50'

1.50' 1.00' 0.50'

1.00'

0.33'

0.50'

(TYP.)

EXPANSION JOINT

W/ SEALANT

1.50' 0.33'

ASPHALT PAVEMENT

CROSS SECTION

ASPHALT PAVEMENT EDGE

AT EXISTING PAVEMENT

ASPHALT PAVEMENT EDGE

AT NATRUAL GRADE

CONCRETE CURB

AND V-DITCH

STORM DRAIN/CULVERT

TRENCH AND BACKFILL

TACK COAT

3:1 MAX0.50'

(MIN.)

TRENCH WALL

SHALL BE VERTICAL

0.25'

(TYP.)

R1.00'

R0.33'

0.33'

0.25'

(TYP.)

4.00'

3.45'

67°'

87°'

0.31' 0.99'

1.00'

0.75'

5.00'

0.50'

4.0' REFLECTOR TO

ADJACENT HIGHWAY

WHITE STRIPE

3.0" X 3.0" (OR 3.0" Ø)

WHITE REFLECTOR

(BOTH SIDES OF

DELINEATOR;

FACING TRAFFIC)

6" ASPHALT PAVEMENT

EPOXY ANCHOR (TYP.)

EPOXY SHALL COMPLETELY FILL VOID

AND SHALL BE FINISHED FLUSH WITH

TOP OF PAVEMENT (TYP.)

NOTES:

1. ASPHALT EPOXY ANCHORS

AND TRAFFIC DELINEATORS

SHALL BE INSTALLED

ACCORDING TO

MANUFACTURE'S

INSTRUCTIONS.

2. ANCHOR HOLES SHALL BE

DRILLED. HOLE SHALL NOT BE

DEEPER THAN 7" AND

DIAMETER OF HOLE SHALL

NOT BE MORE THAN 12" OF THE

DIAMETER OF THE ANCHOR.

3. BOLTS SHALL NOT BE

INSTALLED TO ANCHORS UNTIL

EPOXY IS FULLY CURED, AND

FOR A MINIMUM OF 24 HOURS.

SLOPE

(VARIES)

CONCRETE COURSE - 6.0"

AGGREGATE BASE COURSE - 6.0"

SUBGRADE

CONCRETE PAVEMENT

CROSS SECTION

NOTES:

1. CONCRETE COURSE SHALL MEET

FP-24 SECTION 501 WITH #3 REBAR

PLACED 18" O.C.E.W. IN THE MIDDLE

OF THE CONCRETE COURSE.

2. AGGREGATE BASE COURSE SHALL

CONFORM TO FP-24 SECTION 703

GRADATION C OR D AND SECTION 301.

3. SUBGRADE SHALL BE COMPACTED TO

95% PROCTOR. IF SUBGRADE IS

SOLID/BEDROCK NO COMPACTION IS

NECESSARY.

NOTES:

1. ASPHALT COURSE SHALL BE

HOT-MIX TYPE II CONFORMING TO

FP-24 SECTION 403 . ASPHALT

BINDER SHALL MEET AASHTO M320

PG 76-16. NO RECYCLED ASPHALT

PRODUCTS SHALL BE USED.

2. AGGREGATE BASE COURSE SHALL

CONFORM TO FP-24 SECTION 703

GRADATION C OR D AND SECTION

301.

3. SUBGRADE SHALL BE COMPACTED

TO 95% PROCTOR. IF SUBGRADE IS

SOLID/BEDROCK NO COMPACTION

IS NECESSARY.

NOTES:

1. CURB SHALL BE REINFORCED

WITH #4 REBAR, ASTM A615.

PLACED AT LEAST 3 INCHES FROM

SURFACE OF CONCRETE.

LONGITUDINAL REBAR SHALL BE

SPACED 6 INCHES O.C. AND

TRANSVERSE REBAR SHALL BE

PLACED 18 INCHES O.C.

2. CURB SHALL HAVE CONSTRUCTION

JOINTS 18 INCH WIDE AND 12 INCH

DEEP, SPACED NO FURTHER THAN

15 FEET O.C.

3. CONCRETE V-DITCH SHALL HAVE

#3 REBAR SPACED 18" O.C.E.W,

PLACED IN THE CENTER OF THE

SLAB.

4. CONCRETE SHALL HAVE MINIMUM

28 DAY STRENGTH OF 3500 PSI.

2. AGGREGATE BASE COURSE SHALL

CONFORM TO FP-24 SECTION 703

GRADATION C OR D AND SECTION

301.

3. SUBGRADE SHALL BE COMPACTED

TO 95% PROCTOR. IF SUBGRADE IS

SOLID/BEDROCK NO COMPACTION

IS NECESSARY.

4. EXPANSION JOINTS SHALL BE

FILLED WITH SELF-LEVELING,

NON-SAG, EXTERIOR GRADE

CAULK; FLUSH WITH THE TOP OF

SLAB..

5. EXPANSION JOINTS SHALL BE

SPACED NO FARTHER THAN 65

FEET APART.

TRAFFIC DELINEATORSACCESSIBLE PARKING

SYMBOL

NOTES:

1. BEDDING SHALL

CONSIST OF CLASS II

MATERIAL (ASTM D2321)

WITH GREATER THAN

50% PASSING NO. 4

SIEVE, AND SHALL BE

COMPACTED TO 95%

PROCTOR W/ MAXIMUM 6

INCH LIFTS.

2. HAUNCH SHALL CONSIST

OF CLASS II MATERIAL

(ASTM D2321) WITH

GREATER THAN 50%

PASSING NO. 4 SIEVE,

AND SHALL BE

COMPACTED TO 95%

PROCTOR W/ MAXIMUM 3

INCH LIFTS.

3. ABOVE SPRING LINE,

BACKFILL SHALL

CONSIST OF CLASS I OR

II MATERIAL (ASTM

D2321) , AND SHALL BE

COMPACTED TO 95%

PROCTOR W/ MAXIMUM 6

INCH LIFTS.

WHITE, LOW DENSITY POLYETHYLENE TUBE

W/ UV INHIBITOR

RUBBER BASE, TUBE SHALL BE

ATTACHED IN TAMPER PROOF MANNER

#4 REBAR DOWEL

2.0' O.C.

0.25' MIN.

1.0' MAX.

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

5/2 2/2

6 1 5:

C :\U

\73

S-

\20

N 3.D

W G;

(R03)

SOUTHWEST REGION

MIDGLEY BRIDGE

TRAIL HEAD

PARKING LOT

COCONINO

NATIONAL FOREST

RED ROCK RANGER DISTRICT

CONSTRUCTION DETAILS

05/22/2026

A.PORRAS

A. PORRAS C-04.0

007 009

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SLOPE

(TYP.)

PRECAST JOINTS SEALED

WITH BUTYL ROPE (TYP.)

0.50'

0.33'

OVERLAP

0.25'

3.00'

(2) 38" NUT AND BOLT

AT POST OVERLAP

NOTES:

1. FOR SIGN POSTS IN NATURAL GRADE, POST

MAY BE DRIVEN INTO GROUND.

2. FOR SIGN POST IN PAVED AREA, BOTTOM

POST MUST BE EMBEDDED IN CONCRETE.

CONCRETE SHALL MATCH PAVING

ELEVATION AND SHALL BE SLOPED TO SHED

WATER OFF CONCRETE.

3. TOP POST SHALL NOT BE EMBEDDED INTO

CONCRETE OR SOIL.

4. BOTTOM POST SHALL BE GALVANIZED

STEEL, ASTM 123.

5. TOP POST SHALL BE PAINTED GREEN.

6. SIGNS SHALL HAVE HIGH INTENSITY PRISM

(TYPE IV) RETROREFLECTIVE BACKGROUND.

7. SIGNS SHALL CONFORM TO REQUIREMENTS

OF MUTCD AND EM-7100-15.

8. SIGN SHALL BE CENTERED ON POST.

(2) 38" NUT AND BOLT

7.0' (MIN.)

TO BOTTOM

OF SIGN

1.5" MIN.

4" MAX.

(TYP.)

BOTTOM POST