OR DOT 18(2)_Traffic Management Plan.pdf

TRANSPORTATION MANAGEMENT PLAN

OR DOT 18(2), OR-58: Fix-It Corridor Culverts

July 29, 2022

WSP USA

July 29, 2022 OR DOT 18(2), OR-58: Fix-It Corridor Culverts Transportation Management Plan WFLHD & ODOT

Western Federal Lands & Oregon Department of Transportation

TRANSPORTATION MANAGEMENT PLAN

OR DOT 18(2), OR-58: Fix-It Corridor Culverts

Table of Contents

1.0 PROJECT BACKGROUND

1.1 INTRODUCTION

1.2 PROJECT AREA BOUNDARIES

1.3 PROPOSED IMPROVEMENTS

1.4 TMP GOALS

2.0 PROJECT AREA CHARACTERISTICS

2.1 EXISTING ROADWAY CONDITIONS

2.2 TRAFFIC VOLUME AND CLASSIFICATION DATA

2.3 LOCATION OF OTHER CONTRUCTION PROJECTS

2.4 PROJECT STAKEHOLDERS

2.5 LOCAL LAND USE

3.0 FACTORS IMPACTING CONSTRUCTION

3.1 PROJECT SCHEDULE

3.2 HOLIDAYS AND SPECIAL EVENTS

3.3 SEASONAL RESTRICTIONS

3.4 EXISTING VEHICLE RESTRICTIONS

3.5 AVAILABLE ALTERNATE ROUTES

3.6 CONSTRUCTION NOISE REGULATIONS

3.7 WORK ZONE LANE CLOSURE RESTRICTIONS

3.8 PROPOSED IMPROVEMENTS AND POTENTIAL IMPACTS TO TRAFFIC FLOW

4.0 POTENTIAL MOBILITY ISSUES

4.1 PUBLIC INVOLVEMENT

4.2 REDUCTION REVIEW ROUTE

5.0 TRAFFIC MANAGEMENT AND OPERATIONAL STRATEGIES

5.1 DECISION TREE

5.2 TEMPORARY PEDESTRIAN ACCESSIBLE ROUTE PLAN (TPARP)

5.3 TRAFFIC CONCEPT AND MANAGEMENT

5.4 PUBLIC INFORMATION AND OUTREACH STRATEGIES

July 29, 2022 OR DOT 18(2), OR-58: Fix-It Corridor Culverts Transportation Management Plan WFLHD & ODOT

5.5 MOTORIST INFORMATION/ITS STRATEGIES

5.6 CONSTRUCTION STRATEGIES

6.0 INCIDENT MANAGEMENT PLAN

6.1 EMERGENCY COMMUNICATION PLAN

6.2 CONTINGENCY PLANS

7.0 MOBILITY COMMUNICATION PLAN

July 29, 2022 OR DOT 18(2), OR-58: Fix-It Corridor Culverts Transportation Management Plan WFLHD & ODOT

1.0 PROJECT BACKGROUND

1.1 INTRODUCTION

Oregon Route 58 (OR-58), also known as the Willamette Highway No. 18 is a state highway in Oregon between Interstate 5 (I-5) and U.S. Route 97 (US97). OR-58 is on the National Highway System and is classified as Rural Other Principal Arterial and designated as an ODOT priority, freight route and federal truck route.

The OR DOT 18(2) OR-58: Fix-It Corridor Culverts Project is a partnership between the Western Federal Lands Highway Division (WFLHD) of the Federal Highway Administration (FHWA) and the Oregon Department of Transportation (ODOT). The Project will repair or replace existing culverts on an approximately 82 mile corridor along the OR-58 that are rated as being in “Poor” or “Critical” condition in ODOT's Drainage Facility Management System (DFMS). ODOT has identified 97 culverts that are either in poor or critical condition. Culvert issues range from rusted out inverts, open joints, general barrel damage to complete collapse of the structure. This project will repair or replace 54 culverts to fit within available funding.

1.2 PROJECT AREA BOUNDARIES

The Project is located within the Willamette Valley, Cascades, and Eastern Cascades Slopes and Foothills ecoregions in Lane County and Klamath County, Oregon. The Project begins on OR-58 at approximately MP 2.73 and ends at approximately MP 84.97. Figure 1-1 provides a Project location and vicinity Map.

Figure 1-1: Project Location vicinity map

July 29, 2022 OR DOT 18(2), OR-58: Fix-It Corridor Culverts Transportation Management Plan WFLHD & ODOT

1.3 PROPOSED IMPROVEMENTS

The proposed project consists of repairing or replacing 54 culverts with a span of 1 foot to 20 feet on OR- 58 that are rated as being in “Poor” or “Critical” condition in ODOT's Drainage Facility Management System (DFMS). The shallow culverts requiring replacement will be constructed by digging trenches through the road and the deeper culverts will be replaced by drilling under the road. The scope elements include, but are not limited to:

• Filling or excavating at least 50 percent of the material directly above a culvert, unless this volume is exclusively composed of the top 1 foot of material.

• Constructing of a new culvert, overflow pipe, apron, or wingwall, within the channel.

• Widening/extending of a culvert, wingwall or apron

• Cumulatively through time making repairs or patches to over 50 percent of the culvert’s linear length.

• Replacing any part of a culvert except for culvert ends that have become misaligned or eroded and which are replaced to their original configuration.

• Making any replacements, modifications, patches, repairs to the existing culvert that are different to the original configuration, and which reduces the level of fish passage by native migratory fish.

• Strip lining

• Spot and localized repairs

• Spray on coatings

• Cured in place technologies

• Spiral wound lining

• Paving inverts

• Adding or extending end treatments

• Replacing one to three segments of the interior sections of a culvert

• Replacing road pavement and subbase above culverts

1.4 TMP GOALS

The purpose of this project-level Transportation Management Plan (TMP) is to address traffic related impacts of the Project during the construction in a cost-effective, timely, and safe manner. This TMP includes a discussion on the strategies to minimize disruptions to traffic while considering vehicular, pedestrian, and work zone safety, and summarizes the proposed traffic control concepts to be used during construction. This plan will be updated as the design progresses to include and accommodate any changes through final plans.

This TMP incorporates the following elements:

• Project Area Characteristics

• Description of the existing condition

• Traffic volume and classification data

• Identification of other projects in the area that will require coordination

• Identification of project stakeholders

• Local land use

• Identification of holidays, local events, and seasonal restrictions

• Existing Vehicle restrictions

• Alternate routes

July 29, 2022 OR DOT 18(2), OR-58: Fix-It Corridor Culverts Transportation Management Plan WFLHD & ODOT

• Construction Noise Regulations

• Identification of lane closure restrictions

• Identification of traffic mobility issues during construction

• Public information and communication plan

• Facilitates consideration of safety and mobility impacts of work zones; and Implements management strategies to mitigate impacts to traffic.

• Factors impacting traffic control and construction staging plans

• Access for Pedestrian including those with disabilities and bicycle connectivity and mobility through the work zone

• Access to businesses during construction

• Incident management plan

2.0 PROJECT AREA CHARACTERISTICS

2.1 EXISTING ROADWAY CONDITIONS

OR-58 runs in a southeast–northwest direction, connecting US97 north of Chemult with I-5 south of Eugene. It links the Willamette Valley and Central Oregon, crossing the Cascade Range at Willamette Pass. OR-58 is generally a two-lane highway with a posted speed limit of 55 mph. Some locations around business, properties and commercial access have median turn lanes and narrow shoulders that vary in width throughout the corridor. Typical roadway characteristics are shown on Table 2-1 below.

Table 2-1. Traffic Characteristics

Functional Classification Urban Principal Arterial, Commercial Corridor*

Average Daily Traffic (AADT) 1,700 to 16,000

Heavy Vehicle Percentage 12.8% to 43.4%

Vertical Clearance Route Yes

Design Speed 55 MPH

Posted Speed 55 MPH

NHS/Non-NHS NHS

Typical Lane Width 12’

Typical Number of Lanes 2

Shoulder Width Varies

2.2 TRAFFIC VOLUME AND CLASSIFICATION DATA

Traffic counts obtained by ODOT show varying 2019 Annual Average Daily Traffic (AADT) and heavy vehicle percentages along the corridor by milepoint.1 Note traffic count data represents existing conditions and is not adjusted to the construction year (2023). In general, traffic volumes are higher at the west end of the corridor, while truck percentages are higher at the east end. Table 2-2 shows volumes and heavy vehicle percentage2 by milepoint:

1 Source: https://highway.odot.state.or.us/cf/highwayreports/traffic_parms.cfm, effective 12/31/2019.

2 Truck percentages FHWA Classes 4-13.

https://en.wikipedia.org/wiki/U.S._Route_97_(Oregon) https://en.wikipedia.org/wiki/Chemult,_OR https://en.wikipedia.org/wiki/Interstate_5_(Oregon) https://en.wikipedia.org/wiki/Eugene,_OR https://en.wikipedia.org/wiki/Willamette_Valley https://en.wikipedia.org/wiki/Central_Oregon https://en.wikipedia.org/wiki/Cascade_Range https://en.wikipedia.org/wiki/Willamette_Pass https://en.wikipedia.org/wiki/Willamette_Pass https://en.wikipedia.org/wiki/Speed_limit https://highway.odot.state.or.us/cf/highwayreports/traffic_parms.cfm

July 29, 2022 OR DOT 18(2), OR-58: Fix-It Corridor Culverts Transportation Management Plan WFLHD & ODOT

Table 2-2. ODOT Traffic Count Data

Milepoint AADT Heavy Vehicle

Percentage

3.95 14,000 12.87

5.73 12,100 14.8

8.55 9,100 12.87

9.53 9,800 12.87

11.42 9,200 12.87

13.19 6,700 28.75

20.65 8,400 19.33

34.31 7,100 19.33

34.47 8,200 19.33

34.87 9,100 19.33

35.48 6,400 19.33

35.85 5,400 19.33

37.26 3,200 42.35

45.18 3,300 42.35

67.4 2,300 43.45

69.41 2,500 43.45

72.9 1,700 43.45

2.3 LOCATION OF OTHER CONTRUCTION PROJECTS

In order to minimize mobility impacts to the public during construction, it is critical to coordinate between other construction projects in proximity of the project area. The OR-58: Fix-It Corridor Culverts Project is currently scheduled to begin construction in January 2023 with completion by October 2023. The WFLHD OR58: Coast Fork Willamette River to Lower Salt Creek Bridges project will likely be under construction during the same time period as the culvert repair/replacement work. Coordination between the two projects will be necessary, as they are separate projects and may be done by different contractors.

Additional outreach to ODOT construction staff will be undertaken as design progresses to determine whether other projects in the corridor or in adjacent corridors (such as OR126) will be underway during the same timeframe.

2.4 PROJECT STAKEHOLDERS

The ODOT Community Affairs Section and the consultant team will work with some of the project’s interested parties during the design phase. ODOT Community Affairs will coordinate with the local Commissions, neighborhood associations, emergency services providers and other interested parties along the project location, as applicable. ODOT has created a website for this project on the Region 2 Projects Page and will continue to notify the public about the project and progress at the following address: https://www.oregon.gov/odot/projects/pages/project-details.aspx?project=20102.

The communication efforts seek to inform impacted and interested individuals, businesses, jurisdictions, and organizations. The Public Involvement process will seek to inform and engage the following types of affected and interested people and organizations in the Project area:

— Tribal Nations (Agency initiates with direction to team.)

— City of Lowell

— Lane County

— City of Eugene

— Crescent Lake businesses

— ODOT Motor Carrier Transit Division

— Crater Lake National Park

— State Parks Department https://www.oregon.gov/odot/projects/pages/project-details.aspx?project=20102

July 29, 2022 OR DOT 18(2), OR-58: Fix-It Corridor Culverts Transportation Management Plan WFLHD & ODOT

— City of Chemult

— Town of Oakridge

— City of Crescent

— City of Klamath Falls

— Town of Westfir

— Town of Dexter

— Town of Pleasant Hill

— Middle Fork Ranger Station – Willamette National Forest

— Crescent Ranger Station - Deschutes National Forest

— Lane Transit District (LTD): Diamond Express

— Recreational interests

— Central Oregon Visitors Association

— Travel Lane County

— Trucking/Freight interests

— Emergency services

— Cycling & mountain biking interests

— Business interests

— School districts

— Private property owners along corridor

If winter construction was to occur, key stakeholders would also include Willamette Pass Ski Area, Mt.

Bachelor, and other winter activity interests.

2.5 LOCAL LAND USE

The Project is generally located within the Willamette Valley, Cascades, and Eastern Cascades Slopes and Foothills ecoregions. Most of the corridor is undeveloped, forested land, far from residences and businesses. Pedestrian and bicycle traffic is legally permitted along the highway, although highway usage by these modes is relatively low given the rural nature of the land. The topography varies throughout the Project limits ranging from flat areas generally on the west end of the Project with steeper rolling hills and mountains eastward to the Project limits. The roadway is generally un-curbed with roadside ditches on either side. Some locations, generally on the west end of the Project have curbs near bridge crossings.

3.0 FACTORS IMPACTING CONSTRUCTION

3.1 PROJECT SCHEDULE

Notice to Proceed for the design project was issued in November of 2018, and the PS&E packaged deliverable is scheduled for Fall of 2021. Construction of the project is anticipated to be completed in three seasons starting in spring 2022. The work will be completed by summer of 2024. Table 3-1 shows the Project Design Schedule

Table 3-1. Project Design Schedule

Task Submittal Date

Draft DAP Package 1 9/30/2020

Draft DAP Package 2 11/30/2020

Final DAP Package 1 11/11/2020

Final DAP Package 2 1/29/2021

Advance Plans 5/4/2021

PS&E: 8/5/2022

Bid Opening 11/03/2022

3.2 HOLIDAYS AND SPECIAL EVENTS

The traffic control sections of construction specifications will take into consideration major events and travel times. Key stakeholders may be consulted during design to identify events or time periods that would be of concern if road closures needed to occur. Construction methods such as open trench versus trenchless may mitigate community impacts such as road closures or their duration. An example period of

July 29, 2022 OR DOT 18(2), OR-58: Fix-It Corridor Culverts Transportation Management Plan WFLHD & ODOT concern would include peak tourism season during the summer months of June through September and potential events of concern might include:

— 4 Peaks Music Festival — Mountain Bike Oregon Festival— Balloons over Bend

— Bend Brewfest — Bend Summer Festival

— The Newberry Event Music

& Arts Festival

— Blackberry Jam Festival (Lowell, OR)

— Concerts by the Deschutes at Les Schwab Amphitheater

— Cycle Oregon

— FAT-55 Oakridge Mountain Bike Marathon

— High Desert Rhubarb Festival

— Oregon Bach Festival

— Oregon Country Fair — Sunriver Art Fair — Prefontaine Classic

— Keg and Cask Festival — Sunriver Music Festival

— Coordination with the

OR58 seismic bridge rehabilitation project

The following is a list of the holidays and special events during which closures are not allowed as indicated in the project Special Contract Requirements:

• 1st day of January - New Years’ Day

• 3rd Monday of January - Martin Luther King, Jr. Day

• 3rd Monday of February - Presidents' Day

• Last Monday of May - Memorial Day

• 19th day of June - Juneteenth

• 4th day of July - Independence Day

• 1st Monday of September - Labor Day

• 2nd Monday of October - Columbus Day

• 11th day of November – Veterans’ Day

• 4th Thursday of November - Thanksgiving Day

• 25th day of December - Christmas Day

• Other days declared holidays by the Congress or the President; and

• If a holiday occurs on a Saturday, the preceding Friday is also a legal holiday. If a holiday occurs on a Sunday, the Monday following is also a legal holiday.

3.3 SEASONAL RESTRICTIONS

Due to high elevations and snow season, winter shutdown will restrict construction activities. Based on discussions with ODOT Maintenance staff, do not perform work on culverts above 1700 feet in elevation from October 31 of any given year through April 15 of the successive year (dates inclusive).

3.4 EXISTING VEHICLE RESTRICTIONS

A Mobility Considerations Checklist (See Appendix A) and Decision Tree Form (See Appendix B) have been prepared as supporting documents to this TMP for Motor Carrier Transportation Division (MCTD) review. No existing mobility restrictions have been identified at this time. However, when construction starts, the project team needs to coordinate with MCTD and obtain the most current information on

July 29, 2022 OR DOT 18(2), OR-58: Fix-It Corridor Culverts Transportation Management Plan WFLHD & ODOT vehicle restrictions that may affect the project sites. The contractor should verify restrictions on the MCTD website prior to setting up temporary traffic control within the project limits.

3.5 AVAILABLE ALTERNATE ROUTES

There are no detours anticipated for this project, and no viable alternate routes exist. As design progresses, additional review will be necessary to determine the impact of and coordinate project construction activities with any projects happening concurrently on OR126, which is a critical route pair with OR58 for freight.

3.6 CONSTRUCTION NOISE REGULATIONS

Construction noise variances may be required for this project from Lane and Klamath Counties. During construction, the variances will be available at the Construction Project Manager’s office.

3.7 WORK ZONE LANE CLOSURE RESTRICTIONS

During construction at locations where the roadway width does not allow for two lanes of traffic (e.g., in areas with narrow shoulders, no center turn lane or climbing lane), a single lane will be closed with flaggers or pilot vehicle to control traffic based on the construction activity and method employed. Several culverts are located at side streets or private accesses to the highway. When constructing replacement culverts at these locations, access will always need to be maintained (brief ~20-minute closures may be necessary at times and would need to be coordinated with property owners and/or the jurisdiction that maintains the access).

Project lane closure restrictions are summarized as follows:

All culverts except culverts at MP 2.73 and MP 15.51

Single lane closures allowed during the following periods:

• Monday – Friday: 6am to 7pm, except Fridays between Memorial Day to Labor Day week-ends there will be no lane closures after noon.

• Saturday – no lane closures allowed

• Sunday – no lane closures allowed

Culvert at MP 2.73

Single lane closures allowed during the following periods:

• Monday – Thursday: 9:00 am to 3:00 pm;

• Friday – 9:00 am to 1:00 pm, except between Memorial Day to Labor Day week ends there will be no lane closures after noon.

• Saturday – no lane closures allowed

• Sunday –no lane closures allowed

Culvert at MP 15.51

Single lane closures allowed 24-hour per day, starting 6am Monday through 7pm Friday, limited to a total of 10 days (5 days in each direction), except between Memorial Day to Labor Day week ends there will be no lane closures after noon.

July 29, 2022 OR DOT 18(2), OR-58: Fix-It Corridor Culverts Transportation Management Plan WFLHD & ODOT

3.8 PROPOSED IMPROVEMENTS AND POTENTIAL IMPACTS

TO TRAFFIC FLOW

Most of the culvert construction will occur in two phases at each site while maintaining at least one 14-feet wide travel lane in each direction. Many sites do not have enough width to accommodate two-way traffic and flagging will be required to accommodate traffic. Traffic control for locations that require flagging can deploy the use of an Automatic Flagger Assistance Device (AFAD) or install a temporary signal for sites with longer construction durations. Per ODOT recommendations a minimum clear roadway width of 16’ will be maintained at all times.

4.0 POTENTIAL MOBILITY ISSUES

4.1 PUBLIC INVOLVEMENT

The purpose of the Public Involvement (PI) program is to build awareness and understanding about the Project, gather input about ways of mitigating construction impacts, and keep affected stakeholders up to date during construction. Early information and outreach may encourage drivers to use alternate routes or plan trips to avoid peak traffic times. The public involvement goals are to:

• Communicate complete, accurate, understandable, and timely information to the public throughout the Project.

• Help the public understand the purpose of the Project and its importance for safe travel and a healthy environment .

• Actively engage all affected and interested stakeholders about construction impacts to inform construction timing and process.

• Provide timely and accessible information about all construction impacts and detours.

ODOT is leading public involvement efforts for the project. General public involvement recommendations were prepared as part of the Public Involvement Plan during the scoping phase. Outreach to stakeholders will occur as the project moves forward. ODOT has created a website for this project on the Region 2 Projects Page and will continue to notify the public about the project and progress at the following address:

https://www.oregon.gov/odot/projects/pages/project-details.aspx?project=20102

4.2 REDUCTION REVIEW ROUTE

OR-58 is a Reduction Review Route. No permanent reductions in vehicle carrying capacity are anticipated.

5.0 TRAFFIC MANAGEMENT AND OPERATIONAL STRATEGIES

This section includes the various traffic management strategies that will be considered to help meet the performance goals for traffic management and maintain work zone safety.

5.1 DECISION TREE

ODOT’s Work Zone Decision Tree Matrix (Form #734-5042) included in Appendix B has been prepared to document traffic management and operational strategies and the reasoning behind the decision for their use on the project. The proposed closures needed during the culvert repairs are designed to create a safe work zone large enough for construction vehicles and equipment balanced with the continued movement of traffic and freight.

https://www.oregon.gov/odot/projects/pages/project-details.aspx?project=20102

July 29, 2022 OR DOT 18(2), OR-58: Fix-It Corridor Culverts Transportation Management Plan WFLHD & ODOT

5.2 TEMPORARY PEDESTRIAN ACCESSIBLE ROUTE PLAN

(TPARP)

Pedestrian traffic is permitted on the shoulder of OR58, but no separate pedestrian paths or sidewalks existing within the corridor. Pedestrian access will be maintained during construction by providing a minimum 5’ clear path for pedestrians where existing shoulders are 5’ or wider. In areas with narrower shoulders, the width of the temporary pedestrian access route provided during construction will match the existing shoulder width. In several locations, flaggers will be present to direct traffic during operations requiring lane closures. In these situations, the flaggers will also help to facilitate the TPAR when sufficient width is not available.

There are certain locations with significant space constraints with guardrail on both sides of the roadway which would make accommodating bikes and pedestrians unfeasible. There are unconventional methods to accommodate bikes and pedestrians at constraint locations, as suggested in ODOT’s Traffic Control

Plans Design Manual. For example, the contractor could be required to transport bikes and pedestrians through the work zone in situations where adequate TPAR width is not available.

5.3 TRAFFIC CONCEPT AND MANAGEMENT

Traffic management during construction will be a concern, especially in areas where the roadway is at its minimum width – two lanes with narrow shoulders and, in some cases, steep cut or fill slopes beyond the pavement. OR-58 is a main artery for freight and passenger vehicle traffic between I-5 and US97 and no viable detour routes exist in the immediate vicinity. This being the case, long term closures of the highway are not recommended. Variable message signs should be used prior to and during construction to alert the public of possible delays on the corridor. These signs may be placed on I-5 and US 97 in addition to

OR-58 so that travelers on these highways are aware of the work and likely delays in the corridor.

Impacts to traffic will vary based on the construction activity and method employed. For culvert replacements, open trench construction is the likely method for culverts less than 20 feet deep.

Construction for open trench replacements is likely to last a few days and would require the contractor to occupy a single lane of the highway. While culvert lining and trenchless construction don’t require cuts into the pavement, they would still impact traffic due to the need to stage equipment near the culvert. For lining, impacts to a traffic lane are likely to last around 5 days (2 days for setup, a day for the lining and 2 days to demobilize). Trenchless installations are likely to last up to 10 days.

In general, the likely method of construction will involve closure of a portion of the roadway while culvert removal and reconstruction takes place in stages. In some locations, a third lane exists (e.g., passing lanes or left turn lanes) that may allow traffic to be maintained in both directions during construction.

Advance signage would be required in this situation to close the third lane and shift traffic as necessary.

In many cases, the roadway width is not adequate to allow closure of a portion of the road and still maintain two-way traffic while construction takes place. In these situations, a single lane will be maintained, with flaggers used to control traffic. In addition to advance signing, temporary transverse rumble strips may be used to alert traffic to an upcoming work zone. These devices can be deployed during flagging and removed at the end of the shift. Because the work takes place in a rural area, noise related to the rumble strips should not be a significant issue.

While the high posted speed on the corridor (generally 55 mph) would typically make steel plating of trenches infeasible, the need to implement single lane operations with flaggers will keep speeds low in the construction zone. Steel plates are anticipated to be used at most culvert locations. Pilot cars may be used if it is determined that traffic over the plates is moving too fast, but due to the short work zones, this is not anticipated. The use of steel plates will allow the contractor to open the entire trench, remove and install the culvert in a single shift, instead of doing the removal and installation in stages. The excavator will straddle the trench, adjacent to traffic. Temporary concrete barrier will not be used in these situations, as it restricts the construction area and significantly increases the duration of the work due to the need to pin and remove barrier at the beginning and end of each work shift. Advance warning

July 29, 2022 OR DOT 18(2), OR-58: Fix-It Corridor Culverts Transportation Management Plan WFLHD & ODOT signage before flagger stations would serve to slow traffic. Speed reduction would only be useful in situations where multiple locations are undergoing work simultaneously. Upon completion of a work shift, construction will either need to be completed at a given culvert site, or the trench will need to be paved with temporary asphalt to open it back up to traffic.

At MP 15.51, the culvert to be installed is likely too large (96”) to complete in a single shift with trench plates. It is anticipated that this culvert will require up to 30 days to install, and work will take place on half of the culvert at a time. The work zone will need to be protected with temporary concrete barrier, and

24-hour flagging, or a portable traffic signal will likely be required.

While the majority of the corridor is undeveloped, forested land, far from residences and businesses, pedestrian and bicycle traffic is legally permitted along the highway. This being the case, non-motorized travel must be accommodated during construction. In many areas, where space is limited, this may mean replicating whatever minimal shoulder accommodations exist prior to construction. For example, if the roadway currently has two-foot shoulders, a minimum of two feet must be maintained outside of the vehicle traveled way during construction. In other locations, it may be possible to provide wider shoulders for pedestrian and bike traffic. Six feet is a desired width if it is achievable.

5.4 PUBLIC INFORMATION AND OUTREACH STRATEGIES

In order to help manage congestion within the project study area during construction, it is critical to make the public aware of the potential delays that maybe incurred while traveling through the project area. Early information and outreach may encourage drivers to use alternate routes or plan trips to avoid peak traffic rush hour times. Hence, public information and outreach is beneficial for maintaining public support for projects, as well as for encouraging changes in travel behavior during construction. ODOT Community Affairs (CA) will have project information available online to inform the public and stakeholders of the project. The project information will be posted on ODOT websites prior to construction and kept up to date during construction.

5.5 MOTORIST INFORMATION/ITS STRATEGIES

In order to reduce delay and congestion during construction, the following Intelligent Transportation Systems (ITS) and other strategies may be used to notify public of upcoming work zones and traffic changes:

• Portable changeable message signs (PCMS): PCMS is a portable electronic sign that can display changeable messages to notify drivers of upcoming construction periods and traffic changes as needed. A Traffic Control Supervisor (TCS) will be employed during every work shift to ensure proper placement of traffic control devices and appropriate messaging.

• Ground mounted signs: Typically installed at the endpoints of work zones alerting motorists of upcoming work zone, lane closures etc. They would also be needed to alert motorists of the availability of Highway Advisory Radio information if/when provided.

• 511 (Highway Advisory Telephone): Inclusion of this project on ODOT’s statewide 511 highway advisory telephone system will help provide travelers with latest information about construction activities and potential delays.

• TripCheck (ODOT’s ITS Website): Including this project on ODOT’s ITS website

(www.tripcheck.com) will help to inform users of construction activities. TripCheck allows motorists to retrieve real time information and weather conditions via the Internet. In addition to the internet, motorists may also call 511 to receive this same information. ODOT also shares this information with WAZE, so users of the popular application receive notifications when approaching construction zones

July 29, 2022 OR DOT 18(2), OR-58: Fix-It Corridor Culverts Transportation Management Plan WFLHD & ODOT

5.6 CONSTRUCTION STRATEGIES

In order to reduce impacts of construction to traffic, several construction strategies such as non-peak nighttime construction, project phasing, coordination with adjacent projects, and a traffic control supervisor dedicated to traffic control will be implemented during construction. A noise variance may be required to allow the Contractor to work at night.

6.0 INCIDENT MANAGEMENT PLAN

Incident management is a planned and coordinated program that helps to detect and remove incidents from the roadway and restore traffic capacity as safely and quickly as possible. Incident Management for this project will rely primarily on ODOT Emergency Response, local police and local fire and rescue response plans. The Emergency Communication Plan and Contingency Plan are two important tools for incident management, described in the following sections.

6.1 EMERGENCY COMMUNICATION PLAN

The Emergency Communications Plan describes communications protocols and lists important contact information for responding to an incident. Important elements of the plan include:

• goals and objectives of the plan

• information for key contacts

• emergency and essential services contacts

• definitions of emergencies along with the response and communications procedures

• roles and responsibilities of those executing the plan

Maintaining an updated list of emergency contacts for use in the event of an incident shall be the responsibility of the contractor.

6.2 CONTINGENCY PLANS

A Contingency Plan includes both work zone and traffic contingencies. The traffic contingency plan addresses specific actions that will be taken to restore or minimize effects on traffic due to excessive delays. This can be due to:

• higher than anticipated traffic demand

• unforeseen accidents

• delay in initiating or removing lane restrictions.

• work zone events

The contractor contingency plan addresses activities under the contactor’s control within the work zone.

7.0 MOBILITY COMMUNICATION PLAN

Communications with regional agencies, local agencies, the freight industry, and public stakeholders about the project and changing work zone conditions are critical to the success of traffic mobility on project area. For this project, media releases will be coordinated and distributed by the ODOT’s Community Affairs staff. ODOT MCTD will be responsible for communications with the freight industry. It is recommended that all other communications not described above be disseminated by ODOT staff.

July 29, 2022 OR DOT 18(2), OR-58: Fix-It Corridor Culverts Transportation Management Plan WFLHD & ODOT

APPENDIX A

PROJECT MOBILITY CONSIDERATIONS CHECKLIST

The following is the Project Mobility Considerations Check List for the project.

July 29, 2022 OR DOT 18(2), OR-58: Fix-It Corridor Culverts Transportation Management Plan WFLHD & ODOT

APPENDIX B

WORK ZONE DECISION TREE

The Work Zone Decision Tree Form was used to evaluate various work zone concepts, strategies, and traffic control devices that may or may not be applicable to the project. The form has been and will continue to be updated at each phase of the project.