PROPOSAL FORM

NEBRASKA DEPARTMENT OF TRANSPORTATION

LETTING DATE: August 27, 2026

LETTING TIME: 1:30 PM

CALL ORDER: 110

CONTROL NO. SEQ. NO.: 13515 000

TENTATIVE START DATE: 06/01/2027

LOCATION: JCT US-34/N-50

IN COUNTY: CASS

CONTRACT ID: 13515

PROJECT NO.: HSIP-34-7(135)

CONTRACT TIME: 65 Working Days

DBE GOAL: N/A

PREQUALIFICATION CLASS: 3,10 - CONCRETE

PAVEMENT, GENERAL (ALL CLASSES)

COMBINED BID REQUIREMENTS: N/A

GROUP 1

GROUP 3

GROUP 4

GROUP 5

GROUP 8B

GROUP 8C

GROUP 10

GRADING

CONCRETE PAVEMENT

CULVERTS

SEEDING

ELECTRICAL

SIGNING

GENERAL ITEMS

-1-

P R

O F

E S

IO

NAL CIVIL

E

N G I N

E E

R

S T

A T

E

OF NEBRA

S

K A

S

E-9403

McCULLOUGH

STEVEN

Jul 10, 2026

Jct US-34/N-50 Project No. 34-7(135)

Contract ID 13515

- 2 -

NOTICE TO ALL BIDDERS

To report bid rigging activities, call: 1-800-424-9071

The U.S. Department of Transportation (DOT) operates the above toll-free “hotline” Monday through Friday, 8:00 a.m. to 5:00 p.m. eastern time. Anyone with knowledge of possible bid rigging, bidder collusion, or other fraudulent activities should use the “hotline” to report such activities.

The “hotline” is part of the DOT’s continuing effort to identify and investigate highway construction contract fraud and abuse and is operated under the direction of the DOT Inspector General. All information will be treated confidentially, and caller anonymity will be respected.

LETTING QUESTIONS

Prior to the letting, any questions pertaining to the Special Provisions or the Plans for this project should be submitted to NDOT in a written format through the Bid Express (BidX) website at https://www.bidx.com/ne/lettings. Likewise, NDOT will post answers exclusively to the BidX website. All official answers will be identified as “Authorized by NDOT.”

Questions will not be answered verbally.

The NDOT answers posted in BidX are not a part of the contract documents, are provided for information only, and are subject to change. Only the contract documents, including any addenda thereto, should be relied upon by a potential bidder when submitting a bid.

- 3 -

TABLE OF CONTENTS

DIVISION 100 – GENERAL REQUIREMENTS

SPECIAL PROSECUTION AND PROGRESS

STATUS OF UTILITIES

STATUS OF RIGHT-OF-WAY

ENVIRONMENTAL COMMITMENTS

DIVISION 100 – GENERAL REQUIREMENTS AND COVENANTS

DIVISION 200 – EARTHWORK

DIVISION 300 – SUBGRADE PREPARATION, FOUNDATION COURSES,

BASE COURSES, SHOULDER CONSTRUCTION, AND

AGGREGATE SURFACING

DIVISION 400 – LIGHTING, SIGNS, AND TRAFFIC CONTROL

DIVISION 500 – BITUMINOUS PAVEMENT

DIVISION 600 – PORTLAND CEMENT CONCRETE PAVEMENTS

DIVISION 800 – ROADSIDE DEVELOPMENT AND EROSION CONTROL

DIVISION 900 – INCIDENTAL CONSTRUCTION

DIVISION 1000 – MATERIAL DETAILS

FHWA-1273 REQUIRED CONTRACT PROVISIONS FEDERAL-AID220

CONSTRUCTION CONTRACTS

EXECUTIVE ORDER 11246

DAVIS-BACON WAGE DETERMINATION

TRAINING SPECIAL PROVISIONS

- 4 -

SPECIAL PROVISIONS

FOR

FEDERAL AID

PROJECT NO. 34-7(135)

GENERAL CONDITIONS

(1-1-0826)

Bids for the work contemplated in this proposal form will be received at the office of the Nebraska Department of Transportation in Room 109 of the Central Office Building at 1500 Nebraska Parkway at Lincoln, Nebraska, until the date and time shown on page 1 of the Proposal.

a. Bids submitted by mail should be addressed to the Nebraska Department of Transportation, c/o Contract Lettings Section, P.O. Box 94759, Lincoln, NE 68509-4759.

b. Bids submitted electronically over the internet, shall be submitted using www.bidx.com.

Contractors contemplating submitting a bid for this contract must submit a request to bid via the Department’s ‘Request for Bidding Document’ website at:

https://dot.nebraska.gov/business-center/bid-request-planholder-registration/. An Authorization to Bid will only be issued to, and bids accepted from, Contractors who are prequalified for the Prequalification Class indicated on page 1 of the Proposal Form.

Bids will be opened, and the bid totals will be read via the Department’s designated online meeting platform immediately following the letting date and time indicated on page 1 of the Proposal. Access information for the online bid opening will be available on the BidX Letting webpage a minimum of 2 days prior to the opening, and can be found by selecting the applicable letting from: https://www.bidx.com/ne/lettings.

The 2017 Edition of the Standard Specifications for Highway Construction, including all amendments and additions thereto effective at the date of the contract, are made a part of these Special Provisions, through reference.

The Required Contract Provisions, Form FHWA 1273, (Rev. 10-23), and the Notice of Requirement for Affirmative Action to Ensure Equal Employment Opportunity and Standard Federal Equal Employment Opportunity Construction Contract Specifications dated November 3, 1980, are attached to and are a part of this proposal form.

The General Wage Decision issued under the Davis-Bacon and Related Acts is attached to and is a part of this proposal form.

- 5 -

SPECIAL PROSECUTION AND PROGRESS

(Stabilized Subgrade Type Lime)

At the Engineers’ discretion, Subgrade Preparation may be used in lieu of Stabilized Subgrade Type Lime as shown in the plans for small and irregular areas where it’s not practical to use a reclaimer.

(SUBGRADE PREPARATION)

There are drainage pipes that cross under the roadway that have minimal clearance over them. The Contractor shall exercise care when performing the subgrade preparation work so that the culverts are not damaged. Work associated with exercising such care will not be measured for payment and shall be considered subsidiary to other items of work for which direct payment is made.

(General Requirements)

1. The Plans and these Special Provisions depict phasing sequences that are to be used in the construction of this project. Any deviation from these phasing sequences shall require the approval of the Engineer.

2. The Contractor shall install, maintain, and remove all signs and devices for the detour route. Paragraph 3. of Subsection 104.04 in the Standard Specifications is void.

(Coordination With Others)

The Contractor for this project shall be required to coordinate signing and construction activities with the Contractor for project STP-HSIP-1-7(110), CN: 13469, US-34 - Murdock.

This project is scheduled to be let to contract in the October 1, 2026 letting. This project consists of grading, culvert work, guardrail, asphalt milling and resurfacing, one bridge repair, and two bridge replacements.

- 6 -

STATUS OF UTILITIES

Project No.: HSIP-34-7(135) Control No.: 13515 Location: Jct US-34/N-50

The following information is current as of June 29, 2026.

All utility work has been completed or the necessary arrangements have been made for the required utility work to be undertaken and completed as required for proper coordination with the physical construction schedules. If any utility facilities are encountered and deemed to be in conflict during construction, the relocation work will be concurrent with construction.

The Contractor is directed to review Subsection 105.06 of the NDOT Standard Specifications for Highway Construction, 2017 Edition for additional information regarding cooperation with utilities.

The Contractor should request a utility status update at the project pre-construction conference, and/or prior to start of work. Any utility adjustments or interruption of service for the convenience of the Contractor shall be the sole responsibility of the Contractor.

To arrange for utilities to locate and flag their underground facilities, contact Nebraska One Call at 1-800-331-5666 or dial 811.

After review of the project, the following utility companies have facilities within the project limits:

Charter Communications/Spectrum Are conflicts with this facility anticipated? NO Description of existing location(s) and facility type:

Charter Communications does not have any facilities within the project limits.

Contact Information:

Brian Keiffer, 816-539-5017, brian.keiffer@charter.com

Nebraska City Utilities Are conflicts with this facility anticipated? NO Description of existing location(s) and facility type:

Nebraska City Utilities does not have any facilities within the project limits.

Contact Information:

Logan Crunk, 402-873-3353, logan.crunk@ncunebcity.com

Omaha Public Power District Are conflicts with this facility anticipated? YES Description of existing location(s) and facility type:

Omaha PPD has overhead power facilities within the project limits. They have overhead power that comes from the southwest to the south side of US-34, then runs east parallel to US-34.

- 7 -

Description of conflict(s):

Omaha PPD has 7 poser poles that are in conflict with the temporary construction of the shoofly beginning at approximate Sta. 1009+90 to approximate Sta. 1020+75.

Relocation Work and Schedule:

Omaha PPD is developing relocation plans and will relocate either temporarily or permanently prior to the beginning of the project work.

Contact Information:

Kenneth Porter 402-917-7792, kporter@oppd.com Michael Willey, 531-226-2150, mkwilley@oppd.com

Otoe Country Rural Water District #3 Are conflicts with this facility anticipated? YES Description of existing location(s) and facility type:

Otoe Co RWD #3 has an 8” water main the runs parallel to N-50, in private easement throughout the project. Otoe Co RWD #3 also has a 2” tater main that tees off of the 8” main at the southwest corner of the intersection then runs east parallel to US-34 on the south side.

Description of conflict(s):

Both the 8” and 2” water mains are in conflict with the temporary construction of the shoofly.

Relocation Work and Schedule:

Relocation plans are being developed, and relocation work will be completed prior to the beginning of the project work.

Contact Information:

Scott Bruns, 402- 269-7311, ruralwater@futuretk.com

Segra/Unite Private Networks Are conflicts with this facility anticipated? YES Description of existing location(s) and facility type:

Segra has underground cable in conduit the runs parallel to US-34 on the north side. At the northwest corner of the intersection there is a splice enclosure with underground cable in conduit, continuing south. At the northeast corner of the intersection there is a splice enclosure with underground cable continuing south.

Description of conflict(s):

Segra’s facilities on the south side of the intersection and on both the west and east sides of N-50 are in conflict with the grading for the shoofly.

Relocation Work and Schedule:

Segra is developing relocation plans and will complete their relocations prior to the beginning of the project work.

Contact Information:

Jeremy Beck, 402-278-4891, Jeremy.Beck@segrafiber Ryan Tanner, 402-860-0869, ryan.tanner@upnfiber.com

Viaero Fiber Networks Are conflicts with this facility anticipated? NO Description of existing location(s) and facility type:

Viaero Fiber Networks has buried fiber that runs parallel to US-34 on the north side.

Additional coordination with Contractor:

Potholing may be required at this location for field verification of the facility, see the “POTHOLING” and “UTILITY COORDINATION AND COMMUNICATION” Special Provisions included in this contract.

- 8 -

Additional Comments:

Viaero Fiber Networks will locate their facilities and protect in place. Contractor is to put Viaero on standby when working within 4 feet of their facilities.

Contact Information:

Brian Sonney, 308-370-0200, brian.sonney@viaerofiber.com Shannon McKenzie, 970-467-3159 O 970-467-4040 M, shannon.mckenzie@viaerofiber.com

Windstream Communications Are conflicts with this facility anticipated? YES Description of existing location(s) and facility type:

Windstream has buried fiber throughout the project limits. They have buried fiber that runs parallel to US-34 on the north side. Windstream also has buried fiber that runs parallel to N-50 on the west side, north of the intersection and on the east side, south of the intersection.

Description of conflict(s):

Windstream’s facilities on the south side of the intersection and on both the west and east sides of N-50 are in conflict with the grading for the shoofly.

Relocation Work and Schedule:

Windstream is developing relocation plans and will complete their relocations prior to the beginning of the project work.

Additional coordination with Contractor:

Potholing may be required at this location for field verification of the facility, see the “POTHOLING” and “UTILITY COORDINATION AND COMMUNICATION” Special Provisions included in this contract.

Contact Information:

Todd J. Williams, 531-510-8528, todd.j.williams@windstream.com Stephanie Laux, 402-676-6376, stephanie.laux@windstream.com

NDOT Owned Utilities There are existing NDOT Owned Utilities within the project limits.

ITS Camera Tower Are conflicts with this facility anticipated? YES Description of existing location(s):

Approximate Sta. 1015+45, 95’ RT.

Description of conflict(s):

The ITS camera tower and its power service are in conflict with the project.

Relocation Work and Schedule:

The ITS facilities will be relocated with the project.

Traffic Signals Are conflicts with this facility anticipated? Yes Description of existing location(s):

Four Stop Sign Flashers at the intersection of US-34 and N-50. Two stop sign beacons for the northbound N-50 traffic at approximate Sta. 204+80. Also, two stop sign beacons for the southbound N-50 traffic at approximate Sta. 2006+00. LT.

Description of conflict(s):

All stop signs and beacons are in conflict with the project.

Relocation Work and Schedule:

All stop signs and beacons will be removed with the project.

- 9 -

Lighting Are conflicts with this facility anticipated? Yes Description of existing location(s):

Lighting is located at all four corners at intersection of US-36 and N-50.

Description of conflict(s):

All NDOT lighting facilities are in conflict with the project.

Relocation Work and Schedule:

All NDOT lighting facilities will be relocated with the project.

To arrange for utilities to locate and flag their underground facilities, see the “STATE OWNED UTILITIES LOCATE NOTIFICATION” Special Provision included in this contract.

NDOT Owned Utilities that are found to be in conflict during construction and are not previously required to be relocated as part of the contract, will be relocated by the contractor as extra work as detailed in Section 109.05 of the NDOT Standard Specifications for Highway Construction, 2017 Edition.

STATUS OF RIGHT OF WAY

July 8, 2026

The right of way for Project Number 34-7(135), Control Number 13515 has been acquired and physical possession is held by the State of Nebraska and ready for the contractor’s use, except tracts listed below.

Unacquired Right-of-Way Tracts as follows:

Tract Number

Contract Name Status of Tract Anticipated Completion

Date

2 R&P Baxter Land, LLC Condemnation, Hearing Date Set

August 13, 2 (tenant) Hudson Reed Condemnation, Hearing Date Set

August 13, Right-of-Way Tracts with Pay Items:

Tract Number

Pay Items Station Distance

Left

Distance

Right none

• No encroachments on the old right of way.

• The Contractor will not be able to perform work on any tract listed as “Unacquired Right of Way Tracts” until legal and physical possession has been acquired by the State

- 10 -

• The balance of the right of way has been acquired in accordance with the Federal Highway Administration directives covering the acquisition of real property.

• No residential occupants were required to be relocated.

• All necessary arrangements have been made for the right of way clearance to be undertaken and completed concurrently with the highway construction.

NOTICE TO BIDDERS

(Environmental Commitments)

1. Below are the Conservation Conditions that will be required for this project. All conditions and regulations of any permit obtained for this project shall be followed by the contractor.

CONSERVATION MEASURE FOR ENVIRONMENTALLY SENSITIVE AREAS

1. The Contractor shall not stage, store, waste or stockpile materials and equipment in undisturbed locations, or in known/potential wetlands and/or known/potential streams that exhibit a clear “bed and bank” channel. Potential wetland areas consist of any area that is known to pond water, swampy areas or areas supporting known wetland vegetation or areas where there is a distinct difference in vegetation (at lower elevations) from the surrounding upland areas.

a. Attachment 1 includes the NDOT Wetland Fact Sheet and map(s) of potential wetlands and/or other potential regulated waters features. These features were identified from a desktop review of published resources. The above condition pertains to the areas as listed on Attachment 1. If access to any of these areas is required to complete the project construction, the Engineer shall coordinate with the Technical Resources Unit to determine need for field verification and/or permitting requirements prior to disturbance of the area.

GENERAL THREATENED AND ENDANGERED SPECIES CONSERVATION CONDITIONS

CONSERVATION CONDITIONS

1. The Contractor shall fully implement conservation conditions within the project limits as shown on the plans.

EARLY CONSTRUCTION STARTS

1. Contractor requests for early construction starts shall be coordinated by the Engineer with the NDOT Environmental Section for approval to ensure avoidance of listed species sensitive lifecycle timeframes. Early start requests may require consultation with the USFWS and NGPC. Agency coordination time will vary depending on species and project location.

- 11 -

T&E SPECIES

1. If federal or state listed species are observed during construction, Contractor shall contact the Engineer who will contact the NDOT Environmental Section to determine if additional species conservation conditions would be required prior to continuing project construction activities. Contact NDOT Environmental for a reference of federal and state listed species. Coordination with the USFWS and NGPC may be required depending on the species identified and construction activities.

REFUELING

1. The contractor shall conduct refueling outside of those sensitive areas identified on the plans, in the contract, and/or marked in the field.

RESTRICTED ACTIVITIES

1. The following project activities shall, to the extent possible, be restricted to between the beginning and ending points (stationing, reference posts, mile markers, and/or section-township-range references) of the project, within the right-of-way designated on the project plans: borrow sites, burn sites, construction debris waste disposal areas, concrete and asphalt plants, haul roads, stockpiling areas, staging areas, and material storage sites.

2. For activities outside the project limits, the Contractor shall refer to the Nebraska

Game and Parks Commission website to determine which species ranges occur within the off-site area. The Contractor shall plan accordingly for any species surveys that may be required to approve the use of a borrow site, or other off-site activities. The Contractor shall review the T&E Matrix agreement (on NDOT’s website), where species survey protocols can be found, to estimate the level of effort and timing requirements for surveys.

3. Any project related activities that occur outside of the project limits must be environmentally cleared/permitted with the Nebraska Game and Parks Commission as well as any other appropriate agencies by the contractor and those clearances/permits submitted to the Engineer prior to the start of the above listed project activities. The Contractor shall submit information such as an aerial photo showing the proposed activity site, a soil survey map with the location of the site, a plan-sheet or drawing showing the location and dimensions of the activity site, a minimum of 4 different ground photos showing the existing conditions at the proposed activity site, depth to ground water and depth of pit, and the “Platte River depletion status” of the site. The Contractor shall receive notice of acceptance from NDOT environmental, prior to starting the above listed project activities. These project activities cannot adversely affect state and/or federally listed species or designated critical habitat.

WASTE/DEBRIS

1. The Contractor shall dispose of construction waste/debris in areas or a manner that will not adversely affect state and/or federally listed species and/or designated critical habitat.

- 12 -

POST CONSTRUCTION EROSION CONTROL

1. Erosion control activities carried out by NDOT Maintenance or others after construction is complete, but prior to project close-out, shall adhere to any standard conservation conditions for species designated for the project limits during construction.

NORTHERN LONG-EARED BAT

1. The Contractor shall ensure all operators, employees, and contractors working in areas of Indiana bat, NLEB, or TCB suitable habitat are aware of all Transportation Agency environmental commitments, including all applicable AMMs.

TRAFFIC DISRUPTION

1. The duration of the N-50 detour and temporary roads along US-34 and N-50 shall be less than 135 working days.

2. The Contractor shall coordinate with project US-34 to Murdock (CN 13469, STP-

HSIP-1-7(110)), prior to the start of construction. This coordination is to avoid traffic conflicts with the detours and overlapping construction schedules.

ACCESS DISRUPTION

1. The Contractor shall maintain access to adjacent properties at all times during construction. Access may be disrupted temporarily at times due to construction activities but shall not be closed.

HISTORIC PROPERTIES

1. No grading or project activities, including but not limited to, working, staging, borrowing, stockpiling, or storing material and/or equipment, shall occur beyond the required temporary easement within the boundary of the Sensitive Areas listed below:

a. Kehlbeck Farmstead located at 16510 O Street, Avoca (STA 1015+39 Lt to

2,653.80 feet east of the junction of US-34 and N-50 along US-34/STA 2006+08 Rt to 2,628.78 feet north of the junction of US-34 and N-50 along N-50, MM 352.46 to MM 352.95 (US-34)/MM 62.98 to MM 63.46 (N-50)).

UNEXPECTED WASTE

1. If contaminated soils/groundwater or unexpected wastes are discovered, the

Contractor shall stop all work within the immediate area. The Contractor shall secure the area of the discovery and notify the Engineer. The Contractor shall not reenter the discovery area until notified by the Engineer. At the time of discovery, the Engineer and Contractor shall utilize the NDOT Unexpected Waste Action Plan (UWAP) to coordinate appropriate actions. The Contractor is required by NDOT's Standard Specification Section 107 (legal relations and responsibilities to the public) to handle and dispose of regulated material in accordance with applicable laws.

- 13 -

BORROW SITE

1. Any material needed shall be provided by the Contractor. The Contractor shall try to obtain borrow from an upland site to prevent depletion issues. If the borrow site is within a depletion area of concern, the Contractor shall coordinate with the appropriate agencies and NDOT to offset or minimize impacts. The Contractor shall obtain all environmental clearances and permits required for the borrow site prior to obtaining borrow material for the project.

2. The Contractor shall have a staging area for the project where material and equipment for the project is stored (e.g., re-steel, forms, etc.). The Contractor shall be required to dispose of material removed as part of the project described above and miscellaneous obstructions encountered and removed along the project. The disposal shall be the responsibility of the Contractor. A waste site may be needed.

The Contractor shall be responsible to obtain all permits and clearances and all conditions of those permits shall be followed.

CONSTRUCTION STORMWATER

1. This project requires a Construction Stormwater Permit and that a Storm Water Pollution

Prevention Plan (SWPPP) be maintained for the project. The Contractor shall understand the terms and conditions of the general National Pollutant Discharge Elimination System (NPDES) permit that authorizes the storm water discharges associated with activity from the construction site. For reference, the general permit is posted on the Department’s website.

- 14 -

STATUS OF ENVIRONMENTAL COMMITMENTS

Control No. 13515 Project No. HSIP-34-7(135) Project Name: Jct US-34/N-50

Reviewed and Approved by:

Christina Bavougian 402-479-3547 4/28/2026 Environmental Project Manager Phone No. Date

404 Permit Required Yes Reviewed and Approved

No

HH 4/28/26

Initials

Date

Comments: No 404 permit required.

Individual 401 Water Quality Certification Required Yes

State Title 117 Waters (COE Non-Jurisdictional) Yes

Floodplain Permit Required Yes

Comments: No floodplain permit required

Historic Clearance Yes Tier II Approved 11/17/2025, Supplemental Evaluation 3/6/2026

Reviewed and Approved

KMT 4/27/2026

Initials Date

Comments: No Historic Properties Affected

Threatened & Endangered Species Clearance Required

Yes

Final Biological Assessment Approved – 9/23/2025

Reviewed and

NGPC – NA

No USFWS – NA MG 4/28/2026

Comments: May Affect, Not Likely to Adversely Affect

Environmental Clearance Yes NDOT or FHWA CE-2 approved 4/17/26

Reviewed and Approved

N/A

TDO 4/28/2026

Hazardous Materials Reviewed and

JDB 4.23.2026

NPDES/Stormwater Permit No.:

Stormwater permit required. Will obtain prior to letting. Reviewed and

RP 4/22/26

- 15 -

ENVIRONMENTAL COMMITMENTS

Control No.: 13515 Project No.: HSIP-34-7(135)

Project Name: Jct US-34/N-50

Below are the Conservation Conditions that will be required for this project. All conditions and regulations of any permit obtained for this project will be followed by the contractor.

(Responsible Party for the measure is found in parentheses)

Conservation Measure for Environmentally Sensitive Areas

The Contractor shall not stage, store, waste or stockpile materials and equipment in undisturbed locations, or in known/potential wetlands and/or known/potential streams that exhibit a clear “bed and bank” channel. Potential wetland areas consist of any area that is known to pond water, swampy areas or areas supporting known wetland vegetation or areas where there is a distinct difference in vegetation (at lower elevations) from the surrounding upland areas.

(Contractor, NDOT District)

• Attachment 1 includes the NDOT Wetland Fact Sheet and map(s) of potential wetlands and/or other potential regulated waters features. These features were identified from a desktop review of published resources. The above condition pertains to the areas as listed on Attachment 1. If access to any of these areas is required to complete the project construction, the NDOT construction project manager shall coordinate with the Technical Resources Unit to determine need for field verification and/or permitting requirements prior to disturbance of the area. (Contractor, District Construction)

Contact Person: Heidi Hillhouse, Ecologist, (402) 479-3901

General Threatened and Endangered Species Conservation Conditions

A-1 Changes in Project Scope. If there is a change in the project scope, the project limits, or environmental commitments, the Highway Project Manager shall coordinate with the NDOT Environmental Section to evaluate potential impacts prior to implementation.

Environmental commitments are not subject to change without prior written approval from the NDOT Environmental Section. (District Construction)

A-2 Conservation Conditions. Conservation conditions are to be fully implemented within the project limits as shown on the plans. (District Construction, Contractor)

A-3 Early Construction Starts. Contractor requests for early construction starts must be coordinated by the Project Construction Engineer with the NDOT Environmental Section for approval to ensure avoidance of listed species sensitive lifecycle timeframes. Early start requests may require consultation with the USFWS and NGPC. Agency coordination time will vary depending on species and project location. (District Construction, Contractor)

- 16 -

A-4 T&E Species. If federal or state listed species are observed during construction, the

Highway Project Manager will contact NDOT Environmental Section to determine if additional species conservation conditions would be required prior to continuing project construction activities. Contact NDOT Environmental for a reference of federal and state listed species. Coordination with the USFWS and NGPC may be required depending on the species identified and construction activities. (NDOT Environmental, District Construction, Contractor)

A-5 Refueling. Refueling will be conducted outside of those sensitive areas identified on the plans, in the contract, and/or marked in the field. (Contractor)

A-6 Restricted Activities. The following project activities shall, to the extent possible, be restricted to between the beginning and ending points (stationing, reference posts, mile markers, and/or section-township-range references) of the project, within the right-of-way designated on the project plans: borrow sites, burn sites, construction debris waste disposal areas, concrete and asphalt plants, haul roads, stockpiling areas, staging areas, and material storage sites.

For activities outside the project limits, the contractor should refer to the Nebraska Game and Parks Commission website to determine which species ranges occur within the off-site area. The contractor should plan accordingly for any species surveys that may be required to approve the use of a borrow site, or other off-site activities. The contractor should review the T&E Matrix agreement (on NDOT’s website), where species survey protocols can be found, to estimate the level of effort and timing requirements for surveys.

Any project related activities that occur outside of the project limits must be environmentally cleared/permitted with the Nebraska Game and Parks Commission as well as any other appropriate agencies by the contractor and those clearances/permits submitted to the District Construction Project Manager prior to the start of the above listed project activities. The contractor shall submit information such as an aerial photo showing the proposed activity site, a soil survey map with the location of the site, a plan-sheet or drawing showing the location and dimensions of the activity site, a minimum of 4 different ground photos showing the existing conditions at the proposed activity site, depth to ground water and depth of pit, and the “Platte River depletion status” of the site.

The contractor must receive notice of acceptance from NDOT environmental, prior to starting the above-listed project activities. These project activities cannot adversely affect state and/or federally listed species or designated critical habitat. (NDOT Environmental, District Construction, Contractor)

A-7 Waste/Debris. Construction waste/debris will be disposed of in areas or a manner that will not adversely affect state and/or federally listed species and/or designated critical habitat. (Contractor)

A-8 Post Construction Erosion Control. Erosion control activities carried out by NDOT

Maintenance or others after construction is complete, but prior to project close-out, shall adhere to any standard conservation conditions for species designated for the project limits during construction. (NDOT Maintenance, District Construction, Contractor)

- 17 -

S-1 Fencing. When project-related fence construction/relocation work is required to be done prior to the start of construction, and if the fence work occurs outside urban or cropland areas that are not within swift fox or mountain plover range, then fencing can be installed/relocated at any time using the following criteria:

a. the fencing is temporary in nature and/or consists of only hand-driven posts

b. the work does not compact the soils (ex. through the use of heavy equipment) or cause soil disturbance beyond the driving of posts

c. within the whooping crane migration corridor, work occurring within a half of a mile of wetlands or perennial waters will occur between the hours of 10:00 am to 4:00pm when the work is between March 6 – April 29 or October 9 – November

15. If the fencing work cannot meet these criteria, then NDOT Right-of-Way Division shall coordinate with NDOT Environmental Section prior to the completion of Right-of-way negotiations.

S-3 Revegetation. All permanent seeding and plantings (excluding managed landscaped areas) shall use species and composition native to the project vicinity as shown in the Plan for the Roadside Environment. However, within the first 16 feet of the road shoulder or within high erosion prone locations, tall fescue or perennial ryegrass may be used at minimal rates to provide quick groundcover to prevent erosion, unless state or federally listed threatened or endangered plants were identified in the project area during surveys.

If listed plants were identified, any seed mix requirements identified during resource agency consultations shall be used for the project. (NDOT Environmental)

S-4 Sensitive Areas. Environmentally Sensitive Areas will be marked on the plans, in the field, or in the contract by NDOT Environmental for avoidance. (NDOT Environmental, NDOT Roadway Design, District Construction)

S-6 Permanent LED Lighting (NDOT Design Commitment): Only LED roadway luminaries listed on the NDOT “Nebraska Qualified Material Vendors List” will be considered for use on Nebraska highway lighting projects. Proposed changes to the following LED lighting requirements would require resource agency (USFWS and/or NGPC) coordination and approval prior to installation:

• Nominal CCT – 3000 +/- 300 K

• BUG Ratings – Maximum nominal Backlight (N/A), Uplight (0), Glare (N/A)

• Lumen Output – N/A

Any proposed changes to the listed requirement(s) must be presented to the NDOT Environmental Section for Agency Coordination and approval.

GAMM1 Ensure all operators, employees, and contractors working in areas of Indiana bat, NLEB, or TCB suitable habitat are aware of all Transportation Agency environmental commitments, including all applicable AMMs.

NDOT Construction Project Managers should contact NDOT Environmental at 402-479-3546 or matthew.greiner@nebraska.gov at least 30 days prior to construction start to schedule required surveys.

Contact Person: Matthew Greiner, Ecologist, (402) 479-4419

- 18 -

Utilities

Utility relocation or replacement is not anticipated for the project. If utility relocation or replacement is required in a later phase of the project, a re-evaluation shall be required if: (1) federal funds will be used for the utility work; or (2) the project construction contractor will be responsible for the work. If this utility work is identified during final design, the project sponsor shall initiate the re-evaluation prior to project letting. If the work is identified during construction, the project sponsor shall initiate the re-evaluation prior to commencing utility work. (NDOT Environmental, NDOT District)

If either one of the above two conditions does not apply, later relocation or replacement of utilities shall be coordinated through NDOT and the Contractor per NDOT's Standard Specifications for Highway Construction, Subsection 105.06. Any environmental permits required for these utility relocations or replacements shall be the responsibility of the Utility.

(NDOT District, Utility Provider(s))

Traffic Disruption

The duration of the N-50 detour and temporary roads along US-34 and N-50 must be less than 135 working days. In addition, the detour must create less than 10 miles of adverse (out-of direction) travel within an urban environment and less than 30 miles in a rural setting with access provisions for local traffic. (Contractor)

The Contractor shall coordinate with the contractor for US-34 to Murdock (CN 13469, STP- HSIP-1 -7(110)), prior to the start of construction, to ensure that potential traffic conflicts resulting from project detours and overlapping construction schedules will be avoided.

(Contractor)

Access Disruption

Access to adjacent properties shall be maintained at all times during construction. Access may be disrupted temporarily at times due to construction activities but shall not be closed.

(Contractor)

Public Involvement

A minimum of one news release shall go to all local and area media, and be posted on the NDOT website, prior to the start of construction work. (NDOT District, NDOT Communications)

Contact Person: Talon O’Connor, NEPA Specialist, (402) 479-3553

Historic Properties

A Sensitive Area has been identified on this project. The Sensitive Area encompasses the Kehlbeck Farmstead located at 16510 O Street, Avoca (STA 1015+39 Lt to 2,653.80 feet east of the junction of US-34 and N-50 along US-34/STA 2006+08 Rt to 2,628.78 feet north of the junction of US-34 and N-50 along N-50, MM 352.46 to MM 352.95 (US-34)/MM 62.98 to MM

63.46 (N-50)). No construction activities, including but not limited to, working, staging, borrowing, stockpiling, or storing material and/or equipment, shall occur beyond the required temporary easement. (Contractor)

Contact Person: Katie Turner, Section 106 Specialist, (402) 479-3514

- 19 -

Unexpected Waste

If contaminated soils/groundwater or unexpected wastes are discovered, the Contractor shall stop all work within the immediate area. The Contractor shall secure the area of the discovery and notify the Highway Project Manager (HPM). The Contractor shall not reenter the discovery area until notified by the HPM. At the time of discovery, the HPM and Contractor shall utilize the NDOT Unexpected Waste Action Plan (UWAP) to coordinate appropriate actions. The actions to be carried out by the HPM are (but not limited to): verification that the Contractor has suspended construction activities in the area of the discovery, contact the Roadside Development & Compliance Unit (RDCU) hazmat representative and make an entry into AASHTOware Project that an unexpected waste discovery was made. The HPM shall then utilize the UWAP Notification Form (NDOT Form 691) to properly document the extent and type of waste. The HPM will ensure that proper disposal of the waste and any required health and safety mitigation is implemented by the Contractor. The Contractor is required by NDOT's Standard Specification Section 107.11 (Hazardous Material Discoveries) to handle and dispose of regulated material in accordance with applicable laws.

Contractor Commitment

If contaminated soils/groundwater or unexpected wastes are discovered, the Contractor shall stop all work within the immediate area. The Contractor shall limit access to authorized personnel within the area of the discovery and notify the Highway Project Manager (HPM). The Contractor shall not reenter the discovery area until notified by the HPM. At the time of discovery, the HPM and Contractor shall utilize the NDOT Unexpected Waste Action Plan (UWAP) to coordinate appropriate actions. The Contractor is required by NDOT's Standard Specification Section 107.11 (Hazardous Material Discoveries) to handle and dispose of regulated material in accordance with applicable laws.

Contact Person: John Buhrmann, Noise, Air Quality & Hazardous Materials Specialist, (402) 479-4766

Borrow Site

Any material needed shall be provided by the Contractor. The Contractor shall try to obtain borrow from an upland site to prevent depletion issues. If the borrow site is within a depletion area of concern, the Contractor shall coordinate with the appropriate agencies and NDOT to offset or minimize impacts. The Contractor shall obtain all environmental clearances and permits required for the borrow site prior to obtaining borrow material for the project.

(Contractor)

The Contractor shall have a staging area for the project where material and equipment for the project is stored (e.g. re-steel, forms, etc.). The Contractor shall be required to dispose of material removed as part of the project described above and miscellaneous obstructions encountered and removed along the project. The disposal shall be the responsibility of the Contractor. A waste site may be needed. The Contractor shall be responsible to obtain all permits and clearances and all conditions of those permits shall be followed. (Contractor)

Contact Person: Carson Jones, Roadside Development Team Lead, (402) 479-3642

- 20 -

Construction Stormwater

This project requires a Construction Stormwater Permit and a Storm Water Pollution Prevention Plan (SWPPP) be maintained for the project. The Contractor shall understand the terms and conditions of the general National Pollutant Discharge Elimination System (NPDES) permit that authorizes the storm water discharges associated with activity from the construction site. For reference, the general permit is posted on the Department’s website. (Contractor)

Contact Person: Ron Poe, Roadside Development Compliance Unit Supervisor, (402) 479-4499

NOTE:

In the event that paleontological remains, including but not limited to fossil bones or other fossilized material, preserved remains, impression, or trace of a once-living thing from a past geological age are discovered in the course of the work, work in the area of the discovery shall immediately cease and the Contractor shall immediately notify the Engineer and the UNL Highway Paleontologist. These fossils can be altered or unaltered remains, such as bones, teeth, and shells, or indirect traces like footprints, burrows, and fossilized dung (coprolites). The contact information for the Highway Paleontologist (Shane Tucker) is:

Nebraska Highway Paleontology Program University of Nebraska State Museum W436 Nebraska Hall, UNL Lincoln, NE 68588-0514

(402) 472-2657

- 21 -

- 22 -

- 23 -

- 24 -

- 25 -

- 26 -

STORMWATER POLLUTION PREVENTION PLAN (SWPPP)

Project No. HSIP-34-7(135), CN 13515, Jct US-34/N-50

SWPPP Prepared by: Ronald Poe, PLA, CPESC

The project has been permitted under the terms and conditions of the current Nebraska Department of Energy and Environment (NDEE) General NPDES for Storm Water Discharges from Construction Sites to Waters of the State of Nebraska (Construction Stormwater Permit) (Part I.A). The Contractor shall understand the requirements of the contract, Construction Stormwater Permit and other environmental permits and commitments associated with the project. Additional environmental permits and commitments may be more restrictive than those identified in the Construction Stormwater Permit. References to the permit requirements are provided throughout the SWPPP. The Engineer will update information in the SWPPP and on the Temporary Erosion Control Plan (TECP) to reflect the current project site conditions.

a. PROJECT SITE LOCATION (Part IV.B.1.d): This safety project is located in Cass County on US-34 at the junction of US-34 and N-50. This project includes the intersection and 1,300 feet of each approach roadway to the intersection.

b. A site location map is provided on the Title Page of the construction plan set.

PROJECT DESCRIPTION (Part IV.B.1.a): The improvements on this project consist of lighting upgrades, drainage upgrades, reconstructing an intersection, and removing and replacing pavement.

Grading beyond the hinge point will be required throughout the entire project.

PROPOSED SEQUENCING OF MAJOR CONSTRUCTION ACTIVITIES (Part IV.B.1.b): The contractor shall provide a construction progress schedule detailing the intended sequencing, phasing, and timing of activities that disturb land within the project limits. Final site stabilization must be included in the schedule (Part IV.B.2.i). Temporary erosion and sediment control shall be shown on the construction schedule as an ongoing activity throughout the construction process.

a. The SWPPP must be implemented from the commencement of construction until final stabilization of the project is achieved.

b. Upon final stabilization of a portion of the project, the Engineer may note on the

Temporary Erosion Control Plan that the area is stabilized and SWPPP inspection requirements will no longer apply to that portion of the project.

Exhibit “A” shows the Best Management Practices that are included for use in the project contract along with the stages of construction for when they are most applicable (Part IV.C). The stages of construction are defined as follows.

a. Preconstruction Stage – As clearing begins and prior to any grubbing or grading work, this is sometimes referred to as the “Initial Phase” of construction.

Control Measures and Best Management Practices are utilized to plan for construction to begin and ensure that BMPs are in place to protect adjacent properties and resources from construction activities.

- 27 -

b. During Construction Stage – As work is ongoing and advancing towards completion, this is referred to as the “Construction Phase”. During this period of construction, BMPs are utilized to manage the site in accordance with the Construction Stormwater Permit.

c. Final Stabilization Stage – Final Stabilization, also referred to as the “Final

Phase” of construction, contains the work necessary install the permanent vegetation. These BMPs will assist in controlling erosion and establishing vegetation after construction is complete.

Stage of Construction

Control Measures Best

Management Practice

Description Pre-construction During

Construction Final

Stabilization

MANAGING WORK

CONSTRUCTION

OPERATION

SEQUENCING

Delay & Limitation of Soil Disturbance, Timely Implementation of Control Measures, Early Installation of Cross Drains

These BMPs assist in minimizing the amount of open ground at any given time and by reducing the amount of time that soil is disturbed.

X X

VEGETATED

BUFFER

PRESERVATION

AND

ESTABLISHMENT

Vegetation Preservation & Selective Clearing

Vegetated Buffers reduce impacts to adjacent resources.

X X X

TOPSOIL

CONSERVATION

Soil Quality Management

The placement of nutrients to improve the soil can improve vegetation establishment.

X X X

WATER

RESOURCE

ENCROACHMENT

LIMITATION

Sensitive Areas These BMPs restrict activities and material storage that can occur near water resources.

X X

GOOD

HOUSEKEEPING

Dust Management, Concrete

Specifications reduce the potential for

X X

- 28 -

Washout & Slurry Management, Waste Management, Spill Prevention, Street Cleaning contractor activities, materials, and equipment from becoming a source of pollutants.

MANAGING WATER

DEWATERING Dewatering System

Dewatering can occur during construction when water must be removed from a work area.

X

MANAGING EROSION

TEMPORARY

COVER

Cover Crop These BMPs can be used to reduce exposed soil until permanent vegetation can be planted.

X

PERMANENT

VEGETATIVE

COVER

Permanent Seeding & Mulch

Permanent Vegetative Cover refers to the final stabilization of a completed site.

X

EROSION

CONTROL

PRODUCT

Erosion Control Blanket

Erosion Control Products can minimize erosion potential, while protecting the planted seeds and assisting in reinforcing of the plants for long term erosion protection.

X X

MANAGING SEDIMENT

SEDIMENT

BARRIER

Silt Checks BMPs may be placed at the discharge points or in ditches to slow the velocity of water and deposit sediment.

X X X

- 29 -

INLET

PROTECTION

Silt Checks, Silt Fence, Area Inlet Protection, Curb Inlet Protection

Inlet Protection reduces velocity and minimize sediment from entering a closed drainage system.

X X X

Exhibit “A”

1. ACRES OF DISTURBANCE (Part IV.B.1.c): Total area of soil disturbance: 6 acres

a. The Contractor shall obtain a Construction Stormwater Permit and prepare a SWPPP for all contractor controlled borrow, waste or staging sites that exceed 1 (one) acre of disturbed soil (Part 1.C.1.d).

2. Soils Information: Region B – This region is primarily composed of silt loam with clay subsoil. The Missouri Valley soils are a mix of sand, silt and clay that are poorly drained in some areas. Rising from the valley are loess hills of highly erodible silt. The hills transition to less silt over a clay subsoil. This glacial till (clay) is exposed in some areas and tends to be poorly drained. In the west, the loess mantle is thinner with more clay exposed in the rainwater basin.

GENERAL NOTES

The Stormwater Pollution Prevention Plan (Part IV.A-L), Erosion and Sediment Control Plans and Temporary Erosion Control Plan are essential to documenting compliance with the Construction Stormwater Permit. These documents are components of this SWPPP and may be amended by the Engineer during construction as conditions change on the site or as additional BMPs are required to protect environmental resources. All amendments (Part IV.K.

1-3) to the SWPPP will be documented by the Engineer and communicated to the Contractor.

1. Once installed, pollution prevention BMPs shall not be removed without approval from the Engineer.

2. The Contractor shall maintain an organized project while maintaining materials and waste in a manner that eliminates the potential for pollutant runoff. This includes, but is not limited to:

a. Solid waste management

b. Sanitary waste management

c. Material delivery and storage

d. Street cleaning and sweeping

e. Vehicle and equipment fueling, maintenance and washing

SWPPP AVAILABILITY

The Engineer will maintain a copy of this SWPPP (Part IV. L.1-2), the Construction Stormwater Permit Notice of Intent (CSW-NOI), and the temporary erosion control plans on site or at a nearby NDOT construction or maintenance facility. The Engineer will post a sign detailing how

- 30 -and where to obtain access to the SWPPP information at a public accessible location near the construction project. An example SWPPP sign contains the following information:

1. This project operates under the Construction Stormwater Permit and a Stormwater Pollution Prevention Plan (SWPPP). To view the SWPPP and permit information contact the Highway Project Manager.

2. Project Name

3. Control Number and Contract Identification Number

4. Construction Stormwater Permit Number

5. Construction Stormwater Discharge Authorization Number

6. SWPPP Location

7. District Construction Office Main Phone

8. Highway Project Manager Name

9. Highway Project Manager Phone

SITE INSPECTIONS

Environmental Inspections will occur at a minimum of every 14 days and within 24 hours of rain events of 0.25 inches or greater, excluding nonbusiness hours (Part IV.J; Part VII.A.).

Inspections may be reduced to once per month while the ground is frozen during winter months or when the entire site has been stabilized.