RoadInventoryReport_Fort_Raleigh_National_Historic_Site_Cycle5.pdf

Road Inventory and Condition Assessment

Fort Raleigh National Historic Site

FORA

Cycle 5 Report

Prepared By: Federal Highway Administration Road Inventory Program (RIP) Data Collected: 01/2014 Report Date: 06/2014

Raleigh

Columbia

Charlotte

Virginia Beach

Fort Raleigh National Historic Site in

North Carolina

Sources: Esri, DeLorme, NAVTEQ, USGS, Intermap, iPC, NRCAN, Esri Japan, METI, Esri China (Hong Kong), Esri

Fort Raleigh National Historic Site

DCV = Data Collection Vehicle

TABLE OF CONTENTS

SECTION PAGE

1. INTRODUCTION 1 - 1

2. PARK ROUTE INVENTORY

Route IDs, Subcomponents & Changes Report (As Applicable) 2 – 1

3. PARK SUMMARY INFORMATION

Paved Route Miles and Percentages by Functional Class and PCR 3 – 1 DCV Road Condition Summary 3 – 3 Parkwide DCV Condition Summary 3 – 4

4. PARK ROUTE LOCATION MAPS

Route Location Key Map 4 – 1 Route Location Area Map 4 – 2 Route Condition Key Map – PCR Mile by Mile 4 – 3 Route Condition Area Map – PCR Mile by Mile 4 – 4

5. PAVED ROUTE CONDITION RATING SHEETS

CRS Pages 5 – 1

6. MANUALLY RATED PAVED ROUTE CONDITION RATING SHEETS

MRR Pages 6 – 1

7. PARKING AREA CONDITION RATING SHEETS

Paved Parking Area Pages 7 – 1

8. PARKWIDE / ROUTE MAINTENANCE FEATURES SUMMARIES

Parkwide Maintenance Features Summary 8 – 1 DCV Route Maintenance Features Summary 8 – 2 Structure List 8 – 3

9. ROUTE MAINTENANCE FEATURES ROAD LOGS

Route Maintenance Features Road Logs 9 – 1

10. APPENDIX

Explanation of Changes to the RIP Index Equations and Determination of PCR 10 – 1 Explanation of the Excellent, Good, Fair and Poor Condition Descriptions 10 – 2 Description of Rating System 10 – 3 Surface Distresses 10 – 5 Index Formulas 10 – 12 Data Collection Vehicle Subsystems 10 – 16 Geodatabase – Background and Metadata 10 – 19 Glossary of Terms and Abbreviations 10 – 20

Section 1 Introduction

1-1

INTRODUCTION

The Federal Highway Administration, (FHWA), in the mid 1970s, was charged with the task of identifying surface condition deficiencies and corrective priorities on National Park Service (NPS) roads and parkways. Additionally, FHWA was tasked with establishing an integrated maintenance features inventory, locating features such as culverts, guardrails, and signs, among others, along NPS roads and parkways. As a result, in 1976 the NPS and FHWA entered into an MOA (Memorandum Of Agreement) which established the RIP (Road Inventory Program). This MOA was terminated and revised in 1980 to establish a new MOA aiming to update RIP data and develop a long-range program to improve and maintain NPS roads to designated condition standards and establish a maintenance management program.

The FHWA completed this initial phase of the RIP in the early 1980s. As a result of this effort, each NPS site included in the study received a RIP Report known as the “Brown Book” which included the information collected during this first RIP phase.

In the 1990s, the effort was again renewed to update and maintain the RIP data. By this time the computer age was upon us and a process was employed that relied heavily on electronic data collection and computer technology. A cyclical program was developed and the RIP completed two cycles of data collection from 1994 to 2001. Cycle 1, starting in 1994, was conducted in 44 “large parks” (parks containing 10 or more paved route miles). Cycle 2 began in 1997 and comprised 79 large parks and 5 small parks totaling 4,874 paved route miles. Each of these parks received a RIP Report known as the “Blue Book”. Cycle 3, from 2001 to 2004, was conducted in all parks, large and small, that contained any paved routes, including parking areas and, again, each park received a RIP Report and associated electronic files.

Cycle 4 was initiated in the spring of 2006 covering 86 large parks and several associated small parks consisting of 5,553 paved route miles and 6,232 paved parking areas. Data collection has been completed for Cycle 4 and all data has been delivered to the NPS.

In 2005, the FHWA began implementing the use of a Pavement Management System (PMS) to assist the NPS in prioritizing Pavement Maintenance and Rehabilitation activities. The PMS used by FHWA is the Highway Pavement Management Application (HPMA) and this software has the ability to store inventory and condition data from RIP and forecast future performance using prediction models. Outputs include performance and condition reports at the National, Regional, Park, or Route level. A regional prioritized list and optimization have been produced for most regions and the Federal Highway Deferred Maintenance is calculated via the HPMA.

In an effort to improve the accuracy of treatment recommendations and pavement condition descriptions, an extensive study was completed throughout 2010 that has resulted in changes to the RIP condition reporting method, specifically the distresses and indexes that comprise the Pavement Condition Rating (PCR). It was determined that a better representation of PCR could

1-2 be achieved by modifying the relative impact certain distresses would have on the overall rating.

The changes that were implemented were endorsed by management at both the FHWA and NPS in October 2010. These changes will allow greater use of RIP and HPMA data for not simply condition data reporting, but also as a reliable tool for project identification and selection.

Because of these changes, the PCR Condition ratings reported in Cycle 5 do not directly relate to the condition ratings reported in previous cycle RIP Reports. For more detailed information about the changes, see Section 3 and Section 10 in this RIP Report.

Cycle 5 has launched in the summer of 2010 and will again comprise all parks, large and small, that are served by paved roads and/or parking areas. For Cycle 5, the decision was made to collect condition data in large parks on Functional Class 1, 2, and 7 paved routes only, as well as any new routes that were previously not collected. In small parks, all paved routes and parking areas will be collected. As a result, this will include 81 large parks with 4,459 paved route miles and 231 small parks with 529 paved route miles and associated paved parking areas.

Since 1984, the Road Inventory Program has been funded through the Federal Lands Highway Park Roads and Parkways (PRP) Program. Currently, coordination of the RIP with FLH is under the NPS Washington Headquarters Park Facility Management Division. The FLH Washington office coordinates policy and prepares national reports and needs assessment studies for Congress.

In 1998, the Transportation Equity Act for the 21st Century (TEA-21) amended Title 23 U.S.C., and inserted Section 204(a)(6) requiring the FHWA and NPS, to develop by rule, a Pavement Management System (PMS) applied to park roads and parkways serving the National Park System.

FLH is responsible for the accuracy of all data presented in this report. Any questions or comments concerning the contents of this report should be directed to the national RIP Coordinator located in Sterling, Virginia.

Respectfully, FHWA RIP Team

FHWA/Eastern Federal Lands FHWA/Central Federal Lands 21400 Ridgetop Circle 12300 West Dakota Ave Sterling, VA 20166 Lakewood, CO 80228

(703) 404-6371 (720) 963-3556

Section 2 Park Route Inventory

Section 3 Park Summary Information

FORA: PAVED ROUTE MILES AND PERCENTAGES

BY FUNCTIONAL CLASS AND PCR

Pavement Condition Rating (PCR) Poor (0-60) Fair (61-84) Good (85-94) Excellent (95-100) TOTAL

F.C. MILES % MILES % MILES % MILES % MILES

1 0.04 2.50% 0.22 13.75% 0.54 33.75% 0.80 5 0.02 1.25% 0.08 5.00% 0.45 28.13% 0.55 6 0.14 8.75% 0.03 1.88% 0.08 5.00% 0.25

Totals 0.14 8.75% 0.09 5.63% 0.38 23.75% 0.99 61.88% 1.60

Note:

Explanation of the Excellent, Good, Fair and Poor Condition Descriptions

In addition to the RIP Index changes that have been implemented in Cycle 5, we will also aim to provide greater assistance in translating excellent/good/fair/poor categories into pavement needs categories. The PCR can be used to indicate the place in the Pavement Life Cycle and the types of treatments that should be considered now and into the future.

Excellent/New: PCR of 95-100. Pavements in this range will require only spot repairs

The information in this table is derived from the PMS_20 table in the Park database, which only contains processed data from routes collected with the Data Collection Vehicle (DCV). Information for Manually Rated Routes (MRR) and Parking Areas is not reported in this table. Only Functional Class 1, 2, & 7 routes, and any new routes not previously collected by RIP, are collected in Large Parks.

Good: PCR of 85-94. Pavements in this range will likely be candidates for Preventive Maintenance. Examples include Chip and Slurry Seals, Micro Surfacing and Thin Overlays.

Fair: PCR of 61-84. Pavements in this range will likely be candidates of Light Rehabilitation (L3R). Examples include single-lift overlays up to 2.5 inches in total thickness, milling and overlays.

Poor: PCR of 0-60. Pavements in this range will likely be candidates of Heavy Rehabilitation or Reconstruction (H3R or 4R). Examples include Pulverization, Multiple Lift Overlays, and Reconstruction.

3-1

At this time, specific Maintenance and Rehabilitation activities should be evaluated and recommended at the project level. Site-specific conditions that influence treatment type should be determined based on performing a subsurface investigation and/or pavement condition survey, and not be based solely on RIP data. Additionally, RIP produces a snapshot of conditions the year in which the data was collected. For further information or to obtain additional Pavement Management System’s data from our Highway Pavement Management Application (HPMA) please contact the Eastern Federal Lands pavement team.

3-2

FORA: DCV ROAD CONDITION SUMMARY

DCV - Data Collection Vehicle

ROUTE

NUMBER ROUTE NAME

FUNCT

CLASS

PAVED

LENGTH

SURFACE

TYPE

AVERAGE

SURFACE

CONDITION

RATING (SCR)

AVERAGE

PAVEMENT

CONDITION

RATING (PCR)

0010 FR RD FORT RALEIGH ROAD 1 0.50 ASPHALT 96 96

0011 FR RD NATIONAL PARK DRIVE 1 0.30 ASPHALT 94 94

0400 FR RD THEATER ACCESS ROAD 6 0.11 ASPHALT 88 88

0401 FR RD PEAR PAD ROAD 5 0.55 ASPHALT 96 96

0404 FR RD WATER TOWER ROAD 6 0.14 ASPHALT N/A 45

Data Collected 01/2014

96 94

N/A

96 94

0010 0011 0400 0401 0404

SC

R

/P C

R

ROUTE NUMBER

DCV ROAD CONDITION SUMMARY

AVERAGE SURFACE

CONDITION RATING (SCR)

AVERAGE PAVEMENT

CONDITION RATING (PCR)

3-3

FORA: PARKWIDE DCV CONDITION SUMMARY

AVERAGE

PAVEMENT

CONDITION

RATING (PCR)

AVERAGE

ROUGHNESS

CONDITION

INDEX (RCI)

AVERAGE

SURFACE

CONDITION

RATING (SCR)

AVERAGE

RUT INDEX

AVERAGE

ALLIGATOR

CRACKING

INDEX

AVERAGE

LONGITUDINAL

CRACKING

INDEX

AVERAGE

TRANSVERSE

CRACKING

INDEX

AVERAGE

PATCHING

INDEX

91 N/A 95 97 100 99 97 100

All Index values are based on Data Collection Vehicle (DCV) driven roads that were collected in Cycle-5.

Roughness data is only collected on routes with lengths greater than 0.5 miles and a posted speed limit of 25 MPH or greater.

Data Collected 01/2014

N/A

95 97 100 99 97 100

AVERAGE PAVEMENT

CONDITION RATING

(PCR)

AVERAGE ROUGHNESS

CONDITION INDEX (RCI)

AVERAGE SURFACE

CONDITION RATING

(SCR)

AVERAGE RUT INDEX AVERAGE ALLIGATOR

CRACKING INDEX

AVERAGE

LONGITUDINAL

CRACKING INDEX

AVERAGE

TRANSVERSE

CRACKING INDEX

AVERAGE PATCHING

INDEX

R

AT

IN

G

CYCLE 5 PARKWIDE CONDITION SUMMARY

3-4

Section 4 Park Route Location Maps

Copyright: © 2013 National Geographic Society

4-1º

Fort Raleigh National Historic Site Route Location Map

Key Map

0.2 0 0.20.1 Miles

Cycle 5 Collected Routes

Rte 5064

Rte 0401

Rte 0011

Rte 0010

Rt e

Rte 0400

Rte 0903

Rte 0902

Rte 0904

Rte 0901

Rte 0900ZZ

Rte 0908

Rte 0905

Copyright: © 2013 National Geographic Society

4-2º0.2 0 0.20.1 Miles

Fort Raleigh National Historic Site Route Location Map

Area 1

Unique colors used to differentiate routes

Copyright: © 2013 National Geographic Society

4-3º0.2 0 0.20.1 Miles

Fort Raleigh National Historic Site Route Condition Map

PCR - Mile by Mile Key Map

Note: Only routes collected by the DCV in Cycle-5 are displayed.

* If the PCR rating is not available for a section, the SCR rating will be displayed. See appendix for definitions and formulas.

PCR

(61 - 84)

Fair (85 - 94)

Good (95 - 100)

Excellent No Data (0 - 60)

Poor

Rte 0401

Rte 0011

Rte 0010

Rt e

Rte 0400

Copyright: © 2013 National Geographic Society

4-4º0.2 0 0.20.1 Miles

Fort Raleigh National Historic Site Route Condition Map

PCR - Mile by Mile Area 1

* If the PCR rating is not available for a section, the SCR rating will be displayed. See appendix for definitions and formulas.

PCR

(61 - 84)

Fair (85 - 94)

Good (95 - 100)

Excellent No Data (0 - 60)

Poor

Section 5 Paved Route

Condition Rating Sheets

Copyright: © 2013 National Geographic Society º

* If the PCR rating is not available for a section, the SCR rating will be displayed. See appendix for definitions and formulas.

PCR

(61 - 84)

Fair (85 - 94)

Good (95 - 100)

Excellent No Data (0 - 60)

Poor

Rte 00100

ROUTE: 0010 FR RD FORT RALEIGH ROAD

FORA : FORT RALEIGH NATIONAL HISTORIC SITE

COLLECTED: 1/21/2014

SOUTHEAST REGION TOTAL LENGTH: 0.50 Miles Section Number 0 Section Length (mi) 0.50 Cross Section Information

Number of Lanes 1 Paved Width (ft) 22 Lane Width (ft) 17

Roadway Condition Information SCR (Surface Condition Rating) 96 PCR (Pavement Condition Rating) 96

Distress Index Values Structural Crack Index 99 Transverse Cracking Index 96 Patching Index 100 Rutting Index 99 Roughness Condition Index (RCI) NC

NOTES:

Structural Crack Index is a combination of the Longitudinal Cracking Index and Alligator Cracking Index.

See Section 10 for explanation of SCR, PCR, & all Distress Index Values.

NC - Not Collected N/A - Not Applicable 5-1

R O

U T

E : 0

FR

R

D F

O R

T R

A L

E

IG

H R

O A

D

* If the PCR rating is not available for a section, the SCR rating will be displayed. See appendix for definitions and formulas.

PCR

(61 - 84)

Fair (85 - 94)

Good (95 - 100)

Excellent No Data (0 - 60)

Poor

Rte 0011

ROUTE: 0011 FR RD NATIONAL PARK DRIVE

FORA : FORT RALEIGH NATIONAL HISTORIC SITE

COLLECTED: 1/21/2014

SOUTHEAST REGION TOTAL LENGTH: 0.30 Miles Section Number 0 Section Length (mi) 0.30 Cross Section Information

Number of Lanes 2 Paved Width (ft) 19 Lane Width (ft) 8

Roadway Condition Information SCR (Surface Condition Rating) 94 PCR (Pavement Condition Rating) 94

Distress Index Values Structural Crack Index 97 Transverse Cracking Index 94 Patching Index 99 Rutting Index 99 Roughness Condition Index (RCI) NC

NOTES:

Structural Crack Index is a combination of the Longitudinal Cracking Index and Alligator Cracking Index.

See Section 10 for explanation of SCR, PCR, & all Distress Index Values.

NC - Not Collected N/A - Not Applicable 5-2

R O

U

TE

: 0

FR

R D

N A

TI

O

N A

L

PA

R K

D R

IV

E

* If the PCR rating is not available for a section, the SCR rating will be displayed. See appendix for definitions and formulas.

PCR

(61 - 84)

Fair (85 - 94)

Good (95 - 100)

Excellent No Data (0 - 60)

Poor

Rte 0400

ROUTE: 0400 FR RD THEATER ACCESS ROAD

FORA : FORT RALEIGH NATIONAL HISTORIC SITE

COLLECTED: 1/21/2014

SOUTHEAST REGION TOTAL LENGTH: 0.11 Miles Section Number 0 Section Length (mi) 0.11 Cross Section Information

Number of Lanes 1 Paved Width (ft) 12 Lane Width (ft) 12

Roadway Condition Information SCR (Surface Condition Rating) 88 PCR (Pavement Condition Rating) 88

Distress Index Values Structural Crack Index 99 Transverse Cracking Index 99 Patching Index 99 Rutting Index 88 Roughness Condition Index (RCI) NC

NOTES:

Structural Crack Index is a combination of the Longitudinal Cracking Index and Alligator Cracking Index.

See Section 10 for explanation of SCR, PCR, & all Distress Index Values.

NC - Not Collected N/A - Not Applicable 5-3

R O

U

TE

: 0

FR

R D

T H

EA

TE

R A

C C

ES

S

R O

* If the PCR rating is not available for a section, the SCR rating will be displayed. See appendix for definitions and formulas.

PCR

(61 - 84)

Fair (85 - 94)

Good (95 - 100)

Excellent No Data (0 - 60)

Poor

Rte 0401

ROUTE: 0401 FR RD PEAR PAD ROAD

FORA : FORT RALEIGH NATIONAL HISTORIC SITE

COLLECTED: 1/21/2014

SOUTHEAST REGION TOTAL LENGTH: 0.55 Miles Section Number 0 Section Length (mi) 0.55 Cross Section Information

Number of Lanes 2 Paved Width (ft) 18 Lane Width (ft) 10

Roadway Condition Information SCR (Surface Condition Rating) 96 PCR (Pavement Condition Rating) 96

Distress Index Values Structural Crack Index 99 Transverse Cracking Index 99 Patching Index 100 Rutting Index 96 Roughness Condition Index (RCI) NC

NOTES:

Structural Crack Index is a combination of the Longitudinal Cracking Index and Alligator Cracking Index.

See Section 10 for explanation of SCR, PCR, & all Distress Index Values.

NC - Not Collected N/A - Not Applicable 5-4

R O

U

TE

: 0

FR

R D

P

EA

R P

A D

R O

* If the PCR rating is not available for a section, the SCR rating will be displayed. See appendix for definitions and formulas.

PCR

(61 - 84)

Fair (85 - 94)

Good (95 - 100)

Excellent No Data (0 - 60)

Poor

Rt e

ROUTE: 0404 FR RD WATER TOWER ROAD

FORA : FORT RALEIGH NATIONAL HISTORIC SITE

COLLECTED: 1/21/2014

SOUTHEAST REGION TOTAL LENGTH: 0.14 Miles Section Number 0 Section Length (mi) 0.14 Cross Section Information

Number of Lanes 1 Paved Width (ft) 8 Lane Width (ft) 8

Roadway Condition Information SCR (Surface Condition Rating) NC PCR (Pavement Condition Rating) 45

Distress Index Values Structural Crack Index NC Transverse Cracking Index NC Patching Index NC Rutting Index NC Roughness Condition Index (RCI) NC

NOTES:

Structural Crack Index is a combination of the Longitudinal Cracking Index and Alligator Cracking Index.

See Section 10 for explanation of SCR, PCR, & all Distress Index Values.

NC - Not Collected N/A - Not Applicable 5-5

R O

U

TE

: 0

FR

R D

W A

TE

R

T O

W

ER

R O

Section 6 Manually Rated Paved Route

6-1

MANUALLY RATED ROUTE CONDITION RATING SHEETS

No data available for this section.

Section 7 Parking Area

FORT RALEIGH NATIONAL HISTORIC SITE

Route 0900ZZ

FR RD VISITOR CENTER PARKING AREAS

FROM ROUTE 0010 (FR RD FORT RALEIGH ROAD)

TO ROUTE 0010 (FR RD FORT RALEIGH ROAD)

Summary Record

Route Number

Public / NonPublic Lane Miles *

0900ZZ PUBLIC 0.37

Culverts Drop Inlets Curb

0 0

CONCRETE

CURB

* Lane miles are based on 11' lane widths

7-1

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 2/5/2013

Area (sq ft) 21,402

Gates

Surface Type

AS

PCR

SUMMARY/63

º270 0 270135 Feet

Rte 0903

Rte 0900AZ

Rte 0900BZ Rte 0900CZ

Rte 0010

Route 0900AZ

FR RD VISITOR CENTER LOOP PARKING A

FROM ROUTE 0010 (FR RD FORT RALEIGH ROAD)

TO ROUTE 0010 (FR RD FORT RALEIGH ROAD)

Subcomponent Record

Route Number

Public / NonPublic Lane Miles *

0900AZ PUBLIC 0.16

Culverts Drop Inlets Curb

0 0

CONCRETE

CURB

* Lane miles are based on 11' lane widths

7-2

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 2/5/2013

Area (sq ft) 9,512

Gates

Surface Type

AS

PCR

FAIR/73

º360 0 360180 Feet

Rte 0900AZ

Rte 0900BZ Rte 0900CZ

Rte 0903

Route 0900BZ

FR RD VISITOR CENTER LOOP PARKING B

FROM ROUTE 0010 (FR RD FORT RALEIGH ROAD)

TO ROUTE 0010 (FR RD FORT RALEIGH ROAD)

Subcomponent Record

Route Number

Public / NonPublic Lane Miles *

0900BZ PUBLIC 0.14

Culverts Drop Inlets Curb

0 0

CONCRETE

CURB

* Lane miles are based on 11' lane widths

7-3

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 2/5/2013

Area (sq ft) 8,017

Gates

Surface Type

AS

PCR

POOR/45

º360 0 360180 Feet

Rte 0900AZ

Rte 0900BZ Rte 0900CZ

Rte 0903

Route 0900CZ

FR RD VISITOR CENTER LOOP PARKING C

ADJACENT TO ROUTE 0010 (FR RD FORT RALEIGH ROAD)

Subcomponent Record

Route Number

Public / NonPublic Lane Miles *

0900CZ PUBLIC 0.07

Culverts Drop Inlets Curb

0 0

CONCRETE

CURB

* Lane miles are based on 11' lane widths

7-4

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 2/5/2013

Area (sq ft) 3,873

Gates

Surface Type

AS

PCR

FAIR/73

º360 0 360180 Feet

Rte 0900AZ

Rte 0900BZ Rte 0900CZ

Rte 0903

Route 0901

FR RD GROUP HEADQUARTERS PARKING

FROM ROUTE 0011 (FR RD NATIONAL PARK DRIVE)

TO ROUTE 0011 (FR RD NATIONAL PARK DRIVE)

Route Number

Public / NonPublic Lane Miles *

0901 NONPUBLIC 0.20

Culverts Drop Inlets Curb

0 0

CONCRETE

CURB

* Lane miles are based on 11' lane widths

7-5

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 2/5/2013

Area (sq ft) 11,751

Gates

Surface Type

AS

PCR

FAIR/73

º210 0 210105 Feet

Rte 0011

Rte 090

Rte 0401 Rte 0901

Route 0902

FR RD MAINTENANCE AREA PARKING

FROM ROUTE 0401 (FR RD PEAR PAD ROAD)

TO MAINTENANCE AREA

Route Number

Public / NonPublic Lane Miles *

0902 NONPUBLIC 0.55

Culverts Drop Inlets Curb

0 0 NO CURB

* Lane miles are based on 11' lane widths

7-6

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 2/5/2013

Area (sq ft) 31,930

Gates

Surface Type

AS

PCR

POOR/45

º230 0 230115 Feet

Rte 0401

Rte 0902

Rte 0908

Rte 0905

Route 0903

FR RD THEATER PARKING

FROM ROUTE 0010 (FR RD FORT RALEIGH ROAD)

TO ROUTE 0900ZZ (FR RD VISITOR CENTER PARKING AREAS)

Route Number

Public / NonPublic Lane Miles *

0903 PUBLIC 3.30

Culverts Drop Inlets Curb

0 0

CONCRETE

CURB

* Lane miles are based on 11' lane widths

7-7

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 2/5/2013

Area (sq ft) 191,717

Gates

Surface Type

AS

PCR

POOR/45

º540 0 540270 Feet

Rte 0011

Rte 0010

Rte 0400

Rte 0903

Rte 0900AZ

Rte 0900BZ

Rte 0900CZ

Route 0904

FR RD ELIZABETHAN GARDEN PARKING

ADJACENT TO ROUTE 0011 (FR RD NATIONAL PARK DRIVE)

Route Number

Public / NonPublic Lane Miles *

0904 PUBLIC 0.28

Culverts Drop Inlets Curb

0 0

CONCRETE

CURB

* Lane miles are based on 11' lane widths

7-8

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 2/5/2013

Area (sq ft) 16,189

Gates

Surface Type

AS

PCR

POOR/45

º210 0 210105 Feet

Rte 0401 Rte 0401

Rte 0011 Rte 0904

Rte 0901

Route 0905

ELIZABETHAN GARDEN MAINTENANCE FACILITY

FROM ROUTE 0401 (FR RD PEAR PAD ROAD)

TO MAINTENANCE FACILITY

Route Number

Public / NonPublic Lane Miles *

0905 NONPUBLIC 0.02

Culverts Drop Inlets Curb

0 0 NO CURB

* Lane miles are based on 11' lane widths

7-9

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 2/5/2013

Area (sq ft) 1,404

Gates

Surface Type

AS

PCR

POOR/45

º140 0 14070 Feet

Rte 0401

Rte 0902

Rte 0905

Route 0908

MRC PARKING LOT

FROM ROUTE 0902 (FR RD MAINTENANCE AREA PARKING)

TO PARKING

Route Number

Public / NonPublic Lane Miles *

0908 NONPUBLIC 0.05

Culverts Drop Inlets Curb

0 0 NO CURB

* Lane miles are based on 11' lane widths

7-10

Curb & Gutter

NO CURB AND

GUTTER

Date Visited 2/5/2013

Area (sq ft) 3,030

Gates

Surface Type

AS

PCR

GOOD/90

º125 0 12562.5 Feet

Rte 0902

Rte 0908

Section 8 Parkwide/Route

Maintenance Features Summaries

FORA: PARKWIDE MAINTENANCE FEATURES SUMMARY

Includes DCV, MRL, MRP & PKG routes collected in Cycle-5

FEATURE LINEAR FEET COUNT

BRIDGE -- 0

CATTLE GUARD -- 0

CULVERT -- 5

CURB 1,356 --

DROP INLET -- 0

GATE -- 4

GUARD/GUIDE RAIL 0 --

CABLE 0 --

NON-CABLE 0 --

GUARD/GUIDE WALL 0 --

BOLLARD 0 --

TEMPORARY BARRIER 0 --

NON TEMP/BOLLARD 0 --

INTERSECTION -- 44

LOW WATER CROSSING 0 0

MILE MARKER -- 0

OVERPASS -- 0

PARK BOUNDARY -- 0

PAVED DITCH 0 --

PULLOUT 0 0

RAILROAD CROSSING -- 0

RETAINING WALL 0 0

SIGN -- 43

STATE BOUNDARY -- 0

TRAFFIC LIGHT -- 0

TUNNEL 0 0

Data Collected 01/2014

Notice: Culverts and drop inlets were marked by NPS and inventoried by RIP in Cycle 5 on all DCV driven routes. Culverts and drop inlets were also collected on all Manually Rated Routes and Paved Parking areas. Those totals are reflected below.

8-1

FORA: DCV ROUTE MAINTENANCE FEATURES SUMMARY

FEATURE R

O

U

TE

FR

R D

F O

R T

R A

L

EI

G H

R O

A D

R O

U

TE

FR

R D

N A

T

IO

N A

L P

A R

K D

R

IV

E

R O

U

TE

FR

R D

T H

E A

T E

R A

C C

E

SS

R O

A D

R O

U

TE

FR

R D

P E

A R

P A

D R

O A

D

R O

U

TE

FR

R D

W A

T E

R T

O W

E R

R O

A D

UNIT

BRIDGE EACH

CATTLE GUARD EACH

CULVERT EACH

CURB LINEAR FEET

DROP INLET EACH

GATE EACH

GUARD/GUIDE RAIL LINEAR FEET

CABLE LINEAR FEET

NON-CABLE LINEAR FEET

GUARD/GUIDE WALL LINEAR FEET

BOLLARD LINEAR FEET

TEMPORARY BARRIER LINEAR FEET

NON TEMP/BOLLARD LINEAR FEET

INTERSECTION EACH

LOW WATER CROSSING EACH

LOW WATER CROSSING LINEAR FEET

MILE MARKER EACH

OVERPASS EACH

PARK BOUNDARY EACH

PAVED DITCH LINEAR FEET

PULLOUT EACH

PULLOUT LINEAR FEET

RAILROAD CROSSING EACH

RETAINING WALL EACH

RETAINING WALL LINEAR FEET

SIGN EACH

STATE BOUNDARY EACH

TRAFFIC LIGHT EACH

TUNNEL EACH

TUNNEL LINEAR FEET

Data Collected 01/2014

0 0 0 0

0 0 0 0

Notice: Culverts and drop inlets were marked by NPS and inventoried by RIP in Cycle 5.

0 0

0 0 0

0 0

0 0

0 0

0 0

0 0

8-2

STRUCTURE LIST

No data available for this section.

Data Collected 01/2014 8-3

Section 9 Route Maintenance Features

Road Logs

FROM

MILEPOST

TO

MILEPOST FEATURE SIDE COMMENT

ROUTE 0010: FR RD FORT RALEIGH ROAD

FORA: ROUTE MAINTENANCE FEATURES ROAD LOG

Culverts and drop inlets were marked by NPS and inventoried by RIP in Cycle 5 on all paved routes.

Notice:

0.000 ROUTE BEGIN N/A FROM ROUTE 5064 (U.S. HIGHWAY 64)0.000

0.000 INTERSECTION RIGHT ROUTE 5064 (U.S. HIGHWAY 64)0.000

0.008 CURB RIGHT N/A0.000

0.000 INTERSECTION LEFT ROUTE 5064 (U.S. HIGHWAY 64)0.000

0.002 CULVERT N/A N/A0.002

0.006 CURB LEFT N/A0.004

0.005 SIGN LEFT REGULATORY, STOP0.005

0.014 INTERSECTION LEFT ROUTE 0010 (FR RD FORT RALEIGH ROAD) SPUR0.014

0.017 SIGN LEFT GUIDE, ISLAND FARM WILDLIFE REFUGES VISITOR CENTER0.017

0.017 SIGN LEFT GUIDE, ROANOKE ISLAND0.017

0.021 INTERSECTION RIGHT ROUTE 0010 (FR RD FORT RALEIGH ROAD) SPUR0.021

0.032 SIGN LEFT REGULATORY, GRAPHIC SIGN NO TEXT0.032

0.034 SIGN RIGHT GUIDE, NATIONAL PARK SERVICE0.034

0.048 SIGN LEFT WARNING, GRAPHIC SIGN NO TEXT0.048

0.064 SIGN RIGHT REGULATORY, SPEED LIMIT 200.064

0.127 SIGN RIGHT GUIDE, ELIZABETHAN GARDENS FT. RALEIGH VISITOR

CENTER THE LOST COLONY

0.127

0.158 SIGN LEFT REGULATORY, SPEED LIMIT 200.158

0.165 INTERSECTION LEFT ROUTE 0011 (FR RD NATIONAL PARK DRIVE)0.165

0.167 SIGN LEFT GUIDE, ELIZABETHAN GARDENS FT. RALEIGH VISITOR

CENTER THE LOST COLONY

0.167

0.168 SIGN LEFT GUIDE, UNABLE TO READ FROM VIDEO0.168

0.168 SIGN LEFT GUIDE, UNABLE TO READ FROM VIDEO0.168

0.188 SIGN LEFT GUIDE, ELIZABETHAN GARDENS0.188

0.195 SIGN N/A REGULATORY, ONE WAY0.195

0.196 INTERSECTION LEFT ROUTE 0010 (FR RD FORT RALEIGH ROAD)0.196

0.497 ONE-WAY N/A N/A0.196

0.209 CURB LEFT N/A0.197

0.216 INTERSECTION LEFT ROUTE 0010 (FR RD FORT RALEIGH ROAD) SPUR0.216

0.222 CURB LEFT N/A0.217

0.228 INTERSECTION LEFT ROUTE 0010 (FR RD FORT RALEIGH ROAD) SPUR0.228

9-1Data Collected 01/2014

TO

MILEPOST FEATURE SIDE COMMENT

ROUTE 0010: FR RD FORT RALEIGH ROAD

FORA: ROUTE MAINTENANCE FEATURES ROAD LOG

Culverts and drop inlets were marked by NPS and inventoried by RIP in Cycle 5 on all paved routes.

Notice:

0.260 CULVERT N/A N/A0.260

0.282 SIGN RIGHT GUIDE, THEATER PARKING & BOX OFFICE VISITOR CENTER

CIVIL WAR MARKER

0.282

0.293 INTERSECTION RIGHT ROUTE 0903 (FR RD THEATER PARKING)0.293

0.339 CURB RIGHT N/A0.320

0.324 SIGN RIGHT WARNING, SLOW PEDESTRIAN CROSSING0.324

0.341 INTERSECTION RIGHT ROUTE 0900CZ (FR RD VISITOR CENTER LOOP PARKING C)0.341

0.363 CURB RIGHT N/A0.352

0.367 SIGN RIGHT GUIDE, UNABLE TO READ FROM VIDEO0.367

0.368 INTERSECTION RIGHT ROUTE 0900BZ (FR RD VISITOR CENTER LOOP PARKING B)0.368

0.398 CURB RIGHT N/A0.372

0.376 SIGN RIGHT REGULATORY, DO NOT ENTER0.376

0.402 INTERSECTION RIGHT ROUTE 0900BZ (FR RD VISITOR CENTER LOOP PARKING B)0.402

0.418 CURB RIGHT N/A0.403

0.419 INTERSECTION RIGHT ROUTE 0900AZ (FR RD VISITOR CENTER LOOP PARKING A)0.419

0.460 CURB RIGHT N/A0.423

0.466 INTERSECTION RIGHT ROUTE 0900AZ (FR RD VISITOR CENTER LOOP PARKING A)0.466

0.487 CURB RIGHT N/A0.467

0.470 INTERSECTION LEFT ROUTE 0010 (FR RD FORT RALEIGH ROAD) SPUR0.470

0.474 SIGN LEFT REGULATORY, KEEP RIGHT0.474

0.479 CURB LEFT N/A0.474

0.479 SIGN LEFT REGULATORY, UNABLE TO READ FROM VIDEO0.479

0.481 INTERSECTION LEFT ROUTE 0010 (FR RD FORT RALEIGH ROAD) SPUR0.481

0.496 CURB LEFT N/A0.483

0.497 INTERSECTION LEFT ROUTE 0010 (FR RD FORT RALEIGH ROAD)0.497

0.497 INTERSECTION N/A ROUTE 0010 (FR RD FORT RALEIGH ROAD)0.497

0.497 ROUTE END N/A TO END OF LOOP0.497

9-2Data Collected 01/2014

TO

MILEPOST FEATURE SIDE COMMENT

ROUTE 0011: FR RD NATIONAL PARK DRIVE

FORA: ROUTE MAINTENANCE FEATURES ROAD LOG

Culverts and drop inlets were marked by NPS and inventoried by RIP in Cycle 5 on all paved routes.

Notice:

0.000 ROUTE BEGIN N/A FROM ROUTE 0010 (FR RD FORT RALEIGH ROAD)0.000

0.000 INTERSECTION LEFT ROUTE 0010 (FR RD FORT RALEIGH ROAD)0.000

0.000 INTERSECTION RIGHT ROUTE 0010 (FR RD FORT RALEIGH ROAD)0.000

0.000 SIGN N/A GUIDE, 64 EXIT TO HWY 64 WATERSIDE THEATRE VISITOR

CENTER

0.000

0.079 CURB RIGHT N/A0.000

0.005 SIGN LEFT REGULATORY, STOP0.005

0.024 SIGN RIGHT REGULATORY, SPEED LIMIT 200.024

0.080 INTERSECTION RIGHT ROUTE 0901 (FR RD GROUP HEADQUARTERS PARKING)0.080

0.087 SIGN RIGHT GUIDE, OUTER BANKS GROUP SUPPORT OFFICE

ELIZABETHAN GARDENS

0.087

0.091 CULVERT N/A N/A0.091

0.122 INTERSECTION RIGHT ROUTE 0901 (FR RD GROUP HEADQUARTERS PARKING)0.122

0.123 INTERSECTION LEFT ROUTE 0401 (FR RD PEAR PAD ROAD)0.123

0.128 SIGN LEFT GUIDE, PEAR PAD0.128

0.128 SIGN LEFT GUIDE, UNABLE TO READ FROM VIDEO0.128

0.157 SIGN LEFT REGULATORY, SPEED LIMIT 200.157

0.184 INTERSECTION LEFT ROUTE 0011 (FR RD NATIONAL PARK DRIVE)0.184

0.301 ONE-WAY N/A N/A0.184

0.221 CURB RIGHT N/A0.219

0.220 SIGN LEFT GUIDE, UNABLE TO READ FROM VIDEO0.220

0.223 SIGN RIGHT GUIDE, THE ELIZABETHAN GARDENS OPEN DAILY 10AM - 4 PM0.223

0.244 INTERSECTION RIGHT ROUTE 0904 (FR RD ELIZABETHAN GARDEN PARKING)0.244

0.291 CURB RIGHT N/A0.288

0.301 INTERSECTION LEFT ROUTE 0011 (FR RD NATIONAL PARK DRIVE)0.301

0.301 INTERSECTION N/A ROUTE 0011 (FR RD NATIONAL PARK DRIVE)0.301

0.301 ROUTE END N/A TO END OF LOOP0.301

9-3Data Collected 01/2014

TO

MILEPOST FEATURE SIDE COMMENT

ROUTE 0400: FR RD THEATER ACCESS ROAD

FORA: ROUTE MAINTENANCE FEATURES ROAD LOG

Culverts and drop inlets were marked by NPS and inventoried by RIP in Cycle 5 on all paved routes.

Notice:

0.000 ROUTE BEGIN N/A FROM ROUTE 0903 (FR RD THEATER PARKING)0.000

0.000 INTERSECTION LEFT ROUTE 0903 (FR RD THEATER PARKING)0.000

0.000 INTERSECTION N/A ROUTE 0903 (FR RD THEATER PARKING)0.000

0.000 INTERSECTION RIGHT ROUTE 0903 (FR RD THEATER PARKING)0.000

0.038 INTERSECTION RIGHT UNPAVED ROAD0.038

0.073 SIGN LEFT GUIDE, TICKET OFFICE PARKING LOT VISITOR CENTER0.073

0.088 SIGN RIGHT REGULATORY, UNABLE TO READ FROM VIDEO0.088

0.107 SIGN LEFT GUIDE, UNABLE TO READ FROM VIDEO0.107

0.114 INTERSECTION N/A ROUTE 0405 (FR RD THEATER BACKSTAGE ACCESS ROAD)0.114

0.114 ROUTE END N/A TO BEGINNING OF ROUTE 0405 (FR RD THEATER BACKSTAGE

ACCESS ROAD)

0.114

9-4Data Collected 01/2014

TO

MILEPOST FEATURE SIDE COMMENT

ROUTE 0401: FR RD PEAR PAD ROAD

FORA: ROUTE MAINTENANCE FEATURES ROAD LOG

Culverts and drop inlets were marked by NPS and inventoried by RIP in Cycle 5 on all paved routes.

Notice:

0.000 ROUTE BEGIN N/A FROM ROUTE 0011 (FR RD NATIONAL PARK DRIVE)0.000

0.000 INTERSECTION LEFT ROUTE 0011 (FR RD NATIONAL PARK DRIVE)0.000

0.000 INTERSECTION RIGHT ROUTE 0011 (FR RD NATIONAL PARK DRIVE)0.000

0.000 INTERSECTION N/A ROUTE 0901 (FR RD GROUP HEADQUARTERS PARKING)0.000

0.005 SIGN LEFT REGULATORY, STOP0.005

0.006 SIGN RIGHT GUIDE, SERVICE ROAD RESIDENCE AREA0.006

0.042 CULVERT N/A N/A0.042

0.057 SIGN RIGHT REGULATORY, SPEED LIMIT 150.057

0.057 SIGN RIGHT WARNING, SLOW CHILDREN AT PLAY0.057

0.096 INTERSECTION LEFT ROUTE 0404 (FR RD WATER TOWER ROAD)0.096

0.138 SIGN RIGHT WARNING, SLOW PEDESTRIAN CROSSING0.138

0.178 SIGN LEFT WARNING, SLOW PEDESTRIANS CROSSING0.178

0.281 INTERSECTION RIGHT ROUTE 0905 (ELIZABETHAN GARDEN MAINTENANCE

FACILITY)

0.281

0.283 SIGN RIGHT REGULATORY, DELIVERIES0.283

0.283 SIGN RIGHT REGULATORY, UNABLE TO READ FROM VIDEO0.283

0.296 INTERSECTION LEFT ROUTE 0902 (FR RD MAINTENANCE AREA PARKING)0.296

0.326 CULVERT N/A N/A0.326

0.516 INTERSECTION LEFT ROUTE 0401 (FR RD PEAR PAD ROAD)0.516

0.546 ONE-WAY N/A N/A0.516

0.546 INTERSECTION LEFT ROUTE 0401 (FR RD PEAR PAD ROAD)0.546

0.546 INTERSECTION N/A ROUTE 0401 (FR RD PEAR PAD ROAD)0.546

0.546 ROUTE END N/A TO END OF LOOP0.546

9-5Data Collected 01/2014

TO

MILEPOST FEATURE SIDE COMMENT

ROUTE 0404: FR RD WATER TOWER ROAD

FORA: ROUTE MAINTENANCE FEATURES ROAD LOG

Culverts and drop inlets were marked by NPS and inventoried by RIP in Cycle 5 on all paved routes.

Notice:

0.000 ROUTE BEGIN N/A FROM ROUTE 0401 (FR RD PEAR PAD ROAD)0.000

0.000 INTERSECTION LEFT ROUTE 0401 (FR RD PEAR PAD ROAD)0.000

0.000 INTERSECTION RIGHT ROUTE 0401 (FR RD PEAR PAD ROAD)0.000

0.141 DEBRIS ON ROAD N/A N/A0.000

0.006 GATE N/A N/A0.006

0.006 SIGN LEFT GUIDE, UNABLE TO READ FROM VIDEO0.006

0.010 SIGN LEFT GUIDE, CLOSED0.010

0.010 SIGN RIGHT GUIDE, CLOSED0.010

0.141 INTERSECTION N/A DEAD END0.141

0.141 ROUTE END N/A TO END AT SHED ON LEFT0.141

9-6Data Collected 01/2014

Section 10 Appendix

10-1

Explanation of Changes to the RIP Index Equations and Determination of PCR

In 2005, the FHWA began implementing the use of a Pavement Management System to assist the National Park Service in prioritizing Pavement Maintenance and Rehabilitation activities.

The PMS used by FHWA is the Highway Pavement Management Application (HPMA) and this software has the ability to store inventory and condition data from RIP and forecast future performance using prediction models. Outputs include performance and condition reports at the National, Region, Park, or Route level. A regional prioritized list and optimization have been produced for most regions and the Federal Highway Deferred Maintenance is calculated via the HPMA as well.

In an effort to improve the accuracy of treatment recommendations and pavement condition descriptions in relation to the distresses and indexes that comprise the Pavement Condition Rating (PCR), an extensive study was completed throughout 2010 that resulted in changes to the Road Inventory Program condition reporting method and specifically, the calculation of PCR. It was determined that a better representation of PCR could be achieved by modifying the relative impact certain distresses would have on the overall rating.

Through the use of HPMA data, it was noted that false failure indicators existed with the existing PCR model, and that it would be necessary to reduce their impact. The distresses affected in this way were Rutting and Roughness. Conversely, experience showed that roadways with extensive cracking present were often shown to have a high PCR. Therefore, the crack index models were adjusted to be more sensitive to changes in crack severity or quantity. It was also determined that these issues were not due to a problem with data acquisition (i.e. the RIP “van”), but with the way the collected data was processed. The final change was to provide guidance on when to use the Roughness Condition Index (RCI) in the PCR calculation. Roughness data is of little value to determining overall condition on routes that, due to their length or geometrics, have lower vehicle operating speeds. Therefore, in Cycle 5, only routes that have lengths of one half mile or greater and posted speed limits of 25 mph or greater will have RCI reported and included in the PCR calculations.

The changes that were implemented were endorsed by management at both the FHWA and NPS.

In order to show the effectiveness of these changes, several sites were ground truth tested to ensure that an improvement was achieved between the relationship of PCR and the actual Maintenance and Rehabilitation needs that were represented. These changes will allow greater use of RIP and HPMA data for not simply condition data reporting, but also as a reliable tool for project identification and selection.

Expla Descr

In additio assistanc be used t be consid

Ex G M Fa Ex Po R O

Specific project le on perfor solely on data was System’s the Easte

Pa ve m en tC on di tio n Ra tin g nation o riptions on to the RI e in translat to indicate th dered now an xcellent/New ood: PCR o

Maintenance.

air: PCR of 61 xamples inclu oor: PCR of ehabilitation

Overlays, and

Maintenanc evel. Site-sp rming a sub n RIP data.

s collected.

s data from ern Federal L of the Ex

P Index cha ing good/fai he place in t nd into the fu w: PCR of 95 1 f 85 94. P Examples in

1 84. Paveme ude single lift 60 or belo or Reconstr Reconstructio e and Rehab pecific cond bsurface inve

Additionall For furthe our Highwa

Lands pavem

Cond

POOR

xcellent, anges that we ir/poor categ the Pavemen future.

100. Pavemen avements in nclude Chip an ents in this ra overlays up t

w. Paveme ruction (H3R on.

bilitation act ditions that in estigation an y, RIP prod er informati ay Pavemen ment team.

P dition Ca

R/Heavy Re

EXCELL

, Good, F ere impleme gories into pa nt Life Cycle nts in this ran n this range nd Slurry Sea nge will likely to 2.5 inches ents in this or 4R). Exa tivities shoul nfluence tre nd/or pavem duces a snap on or to ob nt Manageme

Pavement ategories

R ehabilitat

GOOD/P

ENT/Loca

FA

Fair and ented in Cyc avement nee e and the typ nge will requi will likely ls, Micro Surf y be candidat in total thick range will li amples inclu ld be evalua atment type ment conditio pshot of cond btain additio ent Applicat

Age s and Tre

Reconstru ion

Preventive lized Repa

AIR/Light R

Poor Co cle 5, we wil eds categorie pes of treatm re only spot r be candidate facing and Th tes of Light Re kness, milling ikely be can ude Pulveriza ated and reco e should be d on survey, a ditions the y onal Pavem ation (HPMA eatment uction e Mainten airs Only

Rehabilitat ondition ll provide gr

es. The PCR ments that sh repairs.

es for Preve hin Overlays.

ehabilitation and overlays ndidates of H tion, Multipl ommended a determined b and not be b year in whic ent Manage

A) please co ts nance tion

10-2 n reater R can hould entive

(L3R).

Heavy le Lift at the based based ch the ement ontact

10-3

DESCRIPTION OF RATING SYSTEM

The Federal Highway Administration (FHWA), National Park Service Road Inventory Program (NPS-RIP), collects condition data on paved roads, parkways, and parking areas in park units nationwide. Road surface condition data is collected using an automated Data Collection Vehicle (DCV). Roads having brick, cobblestone, or wood surfaces are not normally surveyed with the DCV, but are manually rated for the purpose of assigning a condition rating. Unpaved roads, parkways, and parking areas are not currently being evaluated for condition. Paved campground pads and driveways are also not currently being evaluated for condition.

The FHWA RIP is implemented based on the premise that an accurate pavement surface condition assessment can be accomplished using automated crack detection technology as applied to digital images. Various methods of pavement condition assessment have been developed over the years with varying degrees of accuracy and acceptance. The use of digital photography to record pavement images and subsequent crack detection and classification has undergone continuous improvements over the past decade. Digital cameras with increasingly superior resolution and high definition have become more affordable, and the proprietary programming code and algorithms have been improved in crack detection software.

With the use of high quality digital photography and automated crack detection software, FHWA RIP is tasked with executing a pavement condition assessment on about 5000 miles of National Park Service roads and parkways. Foremost in setting up the basis of pavement distress identification is employing the distress identification protocols used by FHWA. There is no single distress identification system that is universal among entities conducting a program of distress identification. For the purpose of the NPS-RIP, FHWA employs distress identification protocols that are specific to this program.

FHWA has referenced the “Distress Identification Manual for the Long-Term Pavement Performance Program”, Publication No. FHWA-RD 03-031, June 2003, as the point-of-reference for distress types on NPS pavement. The FHWA RIP distress types are similar to those described in the LTPP manual with some modifications. The document, “Distress Identification Manual for the NPS Road Inventory Program, Cycle 5, 2010-2013” was developed using the “Distress Identification Manual for the Long-Term Pavement Performance Program” as a guideline. Definitions of severity levels based on crack width contained in this document adhere to the LTPP Distress ID Manual. Modifications have been made to the definition of Alligator and Longitudinal Cracking and determination of Alligator Cracking severity. This manual also addresses Rutting and Roughness and its application to NPS-RIP.

In 2010, FHWA RIP began the fifth cycle of data collection in national parks. For Cycle 5, data will be collected in approximately 81 large parks (10 or more paved route miles) on Functional Class 1, 2, and 7 routes plus any new routes or parking areas previously not collected, totaling an estimated 4,459 paved route miles. Additionally, 231 small parks will be collected comprising approximately 529 paved route miles and associated paved parking areas. The data is used to support the National Park Service road maintenance program and Pavement Management System (PMS) developed and maintained by FHWA.

10-4

This “Distress Identification Manual for the NPS Road Inventory Program, Cycle 5, 2010- 2013” will be used as a reference resource in crack detection and classification, determination of distress severity and extent, and in the calculation of distress index values for the FHWA RIP Cycle 5.

10-5

SURFACE DISTRESSES

Surface Condition Rating - SCR

Surface distresses are measured in the primary lane only. In the classification and measurement of all paved surface condition data, results will be reported in the database in record intervals of

0.02 miles (105.6 feet) (smallest granularity) along the route.

Surface distresses determined from digital images Transverse Cracks Longitudinal Cracks Alligator Cracks Patching/Potholes

Surface distress measured by DCV (Data Collection Vehicle) LRMS (Laser Rut Measuring System)

Rutting

Each of the five surface distresses is assigned a computed surface distress index

Transverse Crack Index Longitudinal Crack Index Alligator Crack Index Patching/Pothole Index Rutting Index

Surface distress data are classified as listed above, measured for severity, and quantified for extent. Classification, severity, and extent of these five surface distresses comprise the three main elements for calculation of SCR (Surface Condition Rating).

In addition to the five surface distresses, a Structural Crack Index is computed, which is a combination of the Longitudinal Crack Index and the Alligator Crack Index. The Structural Crack Index is then used in lieu of the LC and AC indices to compute SCR.

Roughness Condition Index - RCI

Additional condition data measured by DCV (lasers and accelerometers) Roughness (IRI)

Roughness is measured by FHWA’s DCV and reported as International Roughness Index (IRI) in inches/mile. Using IRI, the Roughness Condition Index (RCI) is computed.

10-6

Pavement Condition Rating - PCR

Using the SCR (computed from the five surface distresses) and the RCI, an overall Pavement Condition Rating (PCR) is computed. The formula for PCR is:

Asphalt PCR = (0.60 * SCR) + (0.40 * RCI) Concrete PCR = RCI

A detailed description of each distress index formula, roughness index formula, SCR and PCR is provided in this document beginning on page 8.

Each classified surface distress will fall into one or more severity…LOW, MEDIUM, or HIGH based on criteria listed. For each severity, an extent is established based on the measured quantity of the distress within that severity. Within each severity individual distresses are assigned a Maximum Allowable Extent (MAE). For example, LOW severity transverse cracking may be allowed up to 21.1 cracks within a 0.02 interval before it reaches MAE and fails.

The index formulas are based on a scale of 0-100. A PCR index value of 100 would indicate a “new” road with no measurable distresses or rough ride. A PCR value of 60 is determined to be terminable serviceability and the road is considered failed. The range of index values with condition descriptors is:

POOR (<=60), FAIR (61 - 84), GOOD (85 - 94), EXCELLENT (95 - 100)

Index values are generally computed based on cumulative deducts of the measured severities.

As shown in the index formulas below, as any single severity reaches or exceeds MAE, the index computes to a value of 60 or less, and the road fails for that 0.02 interval.

Note: As a result of a unique combination of measured surface distresses and IRI, index values occasionally compute to less than 0 or greater than 100. In this instance, an index value < 0 defaults to 0. Index values > 100 default to 100. For all indices, a higher value indicates a better road condition, and a lower value indicates a poorer road condition.

On the following page, Table 1 summarizes the different types of distresses measured.

10-7

TABLE 1: Distress Summary

*Note: Roughness is measured on concrete roadways, but surface distresses and rutting are not measured. For concrete, PCR = RCI

ASPHALT-SURFACED PAVEMENT DISTRESS TYPES with RUTTING and ROUGHNESS

DISTRESS TYPE UNIT OF

MEASURE…

…CONVERTED TO DEFINED

SEVERITY

LEVELS?

MEASURED BY

Alligator Cracking Square Feet Percent of Lane Per 0.02 Mile Yes

Digital Image Crack Detection Software

Transverse Cracking Linear Feet Number of Cracks Per

0.02 Mile Yes

Digital Image Crack Detection Software

Longitudinal Cracking Linear feet Percent of Lane Length

Per 0.02 Mile Yes Digital Image Crack Detection Software

Patching/Potholes Square Feet Percent of Lane Per 0.02 Mile No

Digital Image Crack Detection Software

Rutting Inches Rut Depth Per 0.02 Mile Yes DCV – Laser Rut Measuring System (LRMS)

Roughness IRI *RCI Per 0.02 Mile No DCV – Lasers /Accelerometers

10-8

ALLIGATOR CRACKING

Description

Alligator cracking is considered a combination of fatigue and block cracking. It is a series of interconnected cracks in various stages of development. Alligator cracking develops into a many-sided pattern that resembles chicken wire or alligator skin. It can occur anywhere in the road lane. Alligator cracking must have a quantifiable area.

Severity Levels

LOW

An area of cracks with no or very few interconnecting cracks and the cracks are not spalled. Cracks are <= 0.25 in (6mm) in mean width. Cracks in the pattern are no further apart than 1 foot (0.328 m). May be sealed cracks with sealant in good condition and a crack width that cannot be determined.

MEDIUM

An area of interconnected cracks that form a complete pattern. Cracks may be slightly spalled. Cracks are >0.25 in. (6 mm) and <= 0.75 in. (19 mm) or any crack with a mean width <= 19 mm and adjacent low severity cracking. Cracks in the pattern are no further apart than 6 in. (150 mm).

HIGH

An area of interconnected cracks forming a complete pattern. Cracks are moderately or severely spalled. Cracks are >0.75 in (19mm) or any crack with a mean width <= 0.75 in (19mm) and adjacent medium to high severity random cracking.

A combination of observed crack width and crack pattern is used to determine overall severity of alligator cracking. Based on above description of each severity, the highest level of crack width and crack pattern determines overall severity. Table 2 illustrates this.

TABLE 2: Alligator Crack Severity Levels

ALLIGATOR CRACKING SEVERITY

LEVELS

Crack Pattern

LOW MED HIGH

Cr ac k

W id th

LOW

L M H

MED M M H

HI H H H

10-9

LONGITUDINAL CRACKING

Longitudinal cracking occurs predominantly parallel to the pavement centerline. It can occur anywhere within the lane. Longitudinal cracks occurring in the wheelpath may be noteworthy.

Cracks with a mean width of < 0.25 in. (6 mm). Sealed cracks with sealant in good condition and a width that cannot be determined.

MED

Cracks with a mean width > 0.25 in. (6 mm) and <= 0.75 in. (19 mm). Also, any crack with a mean width < 0.75 in. (19 mm) and adjacent random low severity cracking.

HIGH

Cracks with a mean width > 0.75 in. (19 mm). Also, any crack with a mean width < 0.75

in. (19 mm) and adjacent random medium to high severity cracking.

TRANSVERSE CRACKING

Transverse cracking occurs predominantly perpendicular to the pavement centerline. It can occur anywhere within the lane.

Cracks with a mean width of < 0.25 in. (6 mm). Sealed cracks with sealant in good condition and a width that cannot be determined.

Cracks with a mean width > 0.25 in. (6 mm) and <= 0.75 in. (19 mm). Also, any crack with a mean width < 0.75 in. (19 mm) and adjacent random low severity cracking.

Cracks with a mean width > 0.75 in. (19 mm). Also, any crack with a mean width < 0.75

in. (19 mm) and adjacent random medium to high severity cracking.

10-10

PATCHING AND POTHOLES

Patching is an area of pavement surface that has been removed and replaced with patching material or an area of pavement surface that has had additional patching material applied. Patching may encompass partial-lane or full-lane width. On full-lane width patching;

the total, contiguous length of a patch may not exceed 0.30 mi. (0.48 km). Any full-lane width patch exceeding 0.30 mi. in length is considered a pavement change, not a patch for the purposes of distress analysis. Patching must have a quantifiable area.

Potholes are bowl-shaped holes of various sizes occurring in the pavement surface.

There are no stratified severities for Patching/Potholes. They either are present or they are not.

RUTTING

Rutting is a longitudinal surface depression in the wheelpath.

Ruts with a measured depth 0.20” and 0.49”

Ruts with a measured depth 0.50” and 0.99”

Ruts with a measured depth 1.00”

Ruts < 0.20” are not included in the distress calculations.

10-11

ROUGHNESS

Roughness is the measurement of the unevenness of the pavement in the direction of travel. It is measured in units of IRI (International Roughness Index), inches per mile, and is indicative of ride comfort.

There are no stratified severity levels for roughness. The roughness (or smoothness) of a road surface can be defined by IRI in the following table.

TABLE 3: IRI

IRI Descriptions

Type of Road Typical IRI ( in/mile )

New Road, no noticeable roughness <90

Small level of roughness 90 – 126

Road of average roughness 126 – 190

Road with above average roughness 190 – 253

Road with severe roughness 253 – 380

Nearly impassable >380

10-12

INDEX FORMULAS

Note: All index formulas listed below contain MAE applicable to 0.02 mile (105.6 feet) interval.

Alligator Crack Index

AC_INDEX = 100 – 40 * [(%LOW / 35) + (%MED / 15) + (%HI / 5)]

Where:

The values %LOW, %MED and %HI report the percentage of the observed pavement (0.02 mile, primary lane) that contains alligator cracking within the respective severities.

These values range from 0 to 100.

%LOW = Percent of total area (primary lane, 0.02 in length), low severity %MED = Percent of total area (primary lane, 0.02 in length), medium severity %HI = Percent of total area (primary lane, 0.02 in length), high severity

Percent of total area is computed as:

square foot area of alligator crack severity

0.02 mile * lane width

In AC_INDEX, the denominators 35, 15, and 5 are the Maximum Allowable Extents (MAE) for each severity. In other words, we will allow up to 35% of low severity alligator cracking for a 0.02 interval before failure, 15% for medium severity, and so on.

As you can see, if any single severity reaches MAE the resulting index value…