Exhibit A Standard Provisions and Specifications.pdf

PROJECT NAME

I-5: SB MP9.7 Scaling Project

Pacific Highway Jackson County

DESCRIPTION OF WORK

Work includes scaling remaining unstable failed materials +/- 1500 cubic yards and removing approximately 12 +/- trees and small shrubs within the vicinity of the rockfall. Offsite spoils removal will not be required.

It is the contractor’s responsibility to determine utility or facility conflicts and contact and coordinate with the appropriate utility company or government agency. All utility involvement shall be considered incidental to the project and no separate payment will be made.

Project Manager Cathy Harshman

Oregon Department of Transportation Region 3 District 8

100 Antelope Road White City, Oregon.

541-890-0304 Mobile

Standard Specifications

The 2024 Oregon Standard Specifications for Construction (“Standard Specifications”) include detailed technical specifications in Sections 00200 and beyond that apply to this ITB and any resulting Contract. Some sections of the technical specifications may be identified and modified in the Special Provisions below. Sections of the technical specifications not identified in the Special Provisions remain applicable to the Contract according to their original terms.

Sections in Part 00100 of the Standard Specifications (General Conditions) are not applicable to the Contract unless they are specifically identified in the Plans and Specifications as being applicable. (See ITB Section C.1.6 for a link to the applicable General Conditions.) However, if a technical specification (Parts 00200 and beyond) references a section from Part 00100, that section from Part 00100 applies to the Contract for purposes of supporting and giving full effect to the specification that referenced it. Bidders can access the Standard Specifications online at:

http://www.oregon.gov/ODOT/Business/Pages/Standard_Specifications.aspx

Temporary Work Zone Traffic Control:

All traffic control devices and measures shall comply with the 2011 Manual on Uniform Traffic Control Devices, including its revisions (http://mutcd.fhwa.dot.gov/) and ODOT Standard Drawings (https://www.oregon.gov/ODOT/Engineering/Pages/Standards.aspx) http://www.oregon.gov/ODOT/Business/Pages/Standard_Specifications.aspx http://mutcd.fhwa.dot.gov/ https://www.oregon.gov/ODOT/Engineering/Pages/Standards.aspx

SPECIAL PROVISIONS

SECTION 00210 - MOBILIZATION

Comply with Section 00210 of the Standard Specifications.

SECTION 00220 - ACCOMMODATIONS FOR PUBLIC TRAFFIC

Comply with Section 00220 of the Standard Specifications modified as follows:

SECTION 00225 - WORK ZONE TRAFFIC CONTROL

Comply with Section 00225 of the Standard Specifications modified as follows:

SECTION 00290 - ENVIRONMENTAL PROTECTION

Comply with Section 00290 of the Standard Specifications

SECTION 00380 - ROCK SLOPE SCALING

Section 00380, which is not a Standard Specification, is included in this Project by Special Provision.

Description

00380.00 Scope - This Work consists of furnishing Materials, Equipment, labor, Incidentals, supervision, and service personnel required to perform Rock Slope scaling on the Project as shown and directed.

The Work will be done under the direction of the Engineer. The Contractor’s Rock Slope scaling operations shall at all times be according to the Engineer's instructions.

00380.01 Definitions:

Machine Scaling - Scaling performed using standard or specialized equipment with a hydraulic hammer as well as a bucket or other attachments approved by the Engineer.

Scaling - Removal of vegetation, loose Rock and Soil from the Slope at locations shown or as directed.

Scaler - A person qualified under 00380.02(b) actively performing Scaling.

Scaling Supervisor - A Scaler qualified under 00380.02(b) in direct supervision of Scaling and in direct contact with the Engineer.

Spoils - Any Rock, Soil, vegetation, or other debris generated by Scaling.

Hand Scaling - Scaling using hand tools, hydraulic jacks, pneumatic pillows, or other tools or Equipment approved by the Engineer.

Block Reduction – Reduction in size of rock blocks on existing slope prior to scaling/removal from slope as directed.

Temporary Rockfall Containment System - A suspended or ground-mounted containment system capable of preventing all Spoils from entering the travel lanes of the Roadway.

00380.02 Submittals - Provide the following submittals to the Agency for review and approval:

(a) Rock Slope Scaling Work Plan - At least 7 Calendar Days before beginning Work on each Slope submit the following:

The Scaling sequence and schedule.

Site access.

The types of tools and Equipment to be used.

The number of machine Scalers, hand Scalers, and Scaling Supervisor to be employed on the Project.

Temporary Rockfall Containment System plans and details.

Block reduction methods.

Provisions to protect adjacent facilities.

Proposed herbicide for stump treatment. Include manufacturer’s safety data sheets.

(b) Personnel Qualifications - At least 10 Calendar Days before the preconstruction conference, submit the following:

Submit the company's experience relevant to the Project.

Submit a project reference list of at least 3 separate projects, completed in the last 5 years, with scaled slope dimensions equal to or larger than those shown in the Plans. Include a brief description of each project and the owner's contact person's name and current phone number for each project listed.

Submit a list identifying the Scaling Supervisors and Scaling personnel assigned to the Project. Experience shall be relevant to the anticipated Scaling operations and any special construction techniques required.

Scaling Supervisor must have at least 3 years of experience in this role and a minimum of 1,500 hours of rope access Scaling experience.

Each hand Scaler must have at least 1 year of experience in this role and a minimum of 1,000 hours of rope access Scaling experience.

Each Scaling machine operator must have at least 1 year of experience in this role and a minimum of 1,000 hours of Machine Scaling experience with the Equipment submitted in 00380.02(a).

The Engineer will respond within 7 Calendar Days after receipt of the submittal. Do not begin Work on any Scaling until approved by the Engineer.

Materials

00380.10 Herbicide for Stump Treatment - A solution of Triclopyr herbicide (with at least 40% Triclopyr as the active ingredient).

Equipment

00380.20 Temporary Rockfall Containment System - Provide a Temporary Rockfall Containment System capable of preventing all Spoils from entering the travel lanes of the Roadway. The containment system may be ground-mounted or suspended.

00380.21 Scaling Tools and Equipment - Provide hand tools, portable hydraulic wedges, air pillows or other power tools and associated Equipment necessary to perform Rock Slope Scaling. Other tools or Equipment may include air compressors, hydraulic pumps, and Equipment necessary to access the Slope.

Provide Equipment, machines and tools customarily used for Scaling. Replace Equipment, machines or tools that are unsatisfactory to the Engineer.

00380.22 Machine Scaling Equipment - Furnish equipment sufficient to perform the required Scaling. Provide all necessary attachments such as excavator buckets, hydraulic hammers (breakers), rippers, and grapples.

Labor

00380.30 Personnel Qualifications – Provide on-site Scaling Supervisors, Scalers, and Scaling machine operators who meet the experience requirements of 00380.02(b).

00380.31 Personnel:

(a) Scaling Supervisor - Provide a minimum of 1 Scaling Supervisor(s) for each hand scaling shift.

(b) Scaling Personnel - Provide a minimum of __2__ Scalers for each hand scaling shift.

The Engineer may suspend the Scaling if the Contractor substitutes unapproved personnel during construction. Submit requests for substitution of on-site Scaling Supervisor, qualified Scaling personnel or qualified Machine Scaling personnel to the Engineer for approval, who will have 7 Calendar Days to respond. Additional costs resulting from the suspension of Work due to the changing of personnel will be at no additional cost to the Agency.

Construction

00380.41 Vegetation Removal - Except as noted in 00380.42, flush-cut brush and trees on the Slope and within 10 feet of the crest of the Slope and leave the root wad intact for all trees and brush cut from the crest of the slope to 10 feet upslope of the crest. Within 2 minutes of cutting each tree or shrub, wick and saturate stumps with the herbicide listed in the approved work plan.

Apply this herbicide to all trees and shrubs cut. Complete initial tree felling prior to performing other Scaling Work.

00380.42 Scaling - Begin Scaling at the top of the Slope and proceed downwards toward the bottom of the Slope, removing loose Rock and Soil as the work progresses. Remove vegetation, including root wads, from the area being scaled. Reduce blocks as directed.

The Engineer will inspect the Work as Scaling progresses to determine if additional Machine Scaling is needed. If additional Slope Scaling is required, continue to scale the Slope as directed.

Only scale sections of the Slope protected by the approved containment system. If Scaling Spoil escapes the containment system, cease Scaling operations until the containment system is repaired or modified to contain the Spoil.

00380.46 Block Reduction - Reduce block size to avoid damage to infrastructure and personnel.

Measurement

00380.80 Measurement

(a) Hand Scaler - The quantity of hand Scalers will be measured on the time basis. The measured number of hours will start from the time the hand Scaler is equipped and begins to ascend the Slope to the time the hand Scaler descends the Slope in any Work shift.

(b) Scaling Supervisor - The quantity of Scaling Supervisor will be measured on the time basis.

The measured number of hours will start from the time the hand Scalers are equipped and begin to ascend the Slope to the time the hand Scalers descend the Slope in any Work shift.

(c) Machine Scaling - The quantity of Machine Scaling will be measured on the time basis. The measured number of hours will start from the time the operator positions the Equipment and begins Scaling to the time the operator moves the Equipment away from the area being scaled or at the cease of daily operation. No measurement of quantities for the support personnel necessary for the Machine Scaling Equipment will be made.

(d) Temporary Rockfall Containment System - No measurement of quantities will be made for the Temporary Rockfall Containment System.

Payment

00380.90 Payment - The accepted quantities of Work performed under this Section will be paid for at the Contract unit price, per unit of measurement, for the following items:

Pay Item Unit of Measurement

(a) Hand Scaler ................................................................. Hour

(b) Scaling Supervisor ........................................................ Hour

(c) Machine Scaling........................................................... Hour

(d) Temporary Rockfall Containment System .................Lump Sum

Payment will be payment in full for furnishing and placing all Materials, and for furnishing all Equipment, labor, and Incidentals necessary to complete the Work as specified.

No separate or additional payment will be made for:

Hand Scaling tools and Equipment

Operator and support personnel necessary for the Machine Scaling Equipment Block reduction equipment or materials.

I-5 SB MP9.7

Scope of Work for I-5 MP 9.7, 9/24/2025

Background and Scope of Work:

On March 17, 2025, a rock mass failure occurred at the subject location. Some materials at the base of the slope have been cleaned up, but additional mitigation work is required to eliminate loose and failed materials remaining on the slope. Approximately 1,500 cubic yards of failed soil and rock remain on the slope. The failure’s headscarp is approximately 180 feet above the road surface, with benched slopes below. The headscarp is set back approximately 200 feet from the edge of pavement. Failed blocks remaining on the slope vary in size. Larger blocks measured an estimated maximum dimension of 20-25.

Smaller shrubs and approximately 12 trees should be removed during cleanup activities.

In summary, the goal of the rockfall mitigation at I-5 MP9.7 involves scaling remaining unstable failed materials and cutting trees and shrubs within the vicinity of the rockfall.