1264R420R0005 - Attachment 3 - Special Project Specs.pdf

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FEDERAL HIGHWAY ADMINISTRATION

EASTERN FEDERAL LANDS HIGHWAY DIVISION

SPECIAL CONTRACT REQUIREMENTS

Project MO ERFO FS 2017-1(2) Gooseneck Low Water Crossing

Mark Twain National Forest

The following Special Contract Requirements amend and supplement the Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects (FP-14), U. S. Department of Transportation, Federal Highway Administration.

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Section 104. — CONTROL OF WORK

104.03(c). Delete the first sentence of the first paragraph and substitute the following:

Furnish one full-size (24-inch by 36-inch) paper copy of the plans from the Government-provided electronic plans, and use this set of plans exclusively for as-built drawings.

104.05. Add the following:

Operate loaded vehicles hauling material at speeds not exceeding 40 miles per hour or the posted speed limit, whichever is lower, and spaced at 500-foot minimum intervals. When hauling on bridges, do not exceed 25 miles per hour or the posted speed limit, whichever is lower, or operate more than 1 loaded hauling vehicle at a time.

Submit access routes along with hauling vehicles and equipment to be used to the CO for approval prior to mobilizing equipment. Do not damage existing Forest roads, culverts and bridges with construction equipment or hauling vehicles. Hauling will only be permitted from the west of the project on Forest Service Road (FSR) 3412. Minimize hauling over completed pavement.

Section 108. — PROSECUTION AND PROGRESS

108.01. Delete the first sentence of the second paragraph and substitute the following:

A preconstruction conference will be held after the contract is awarded and at least 7 days before beginning work. Coordinate with the CO to ensure that the following agencies and municipalities are invited to the preconstruction conference:

Sam Watts, Windstream Communications, 417-708-1425, samuel.watts@windstream.com

108.01. Add the following:

No work will be permitted on National legal holidays.

If the Contractor finds it necessary to work on one of these restricted days, request approval from the CO at least 7 days before the planned work.

Section 152. — CONSTRUCTION SURVEY AND STAKING

152.04. Delete the last sentence of the eighth paragraph and substitute the following:

Reestablish any missing initial reference lines, control points, and stakes set by the Government.

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152.05. Delete the text of Subsections (h), (i), (j), and (k); they are not required.

Section 154. — CONTRACTOR SAMPLING AND TESTING

154.02. Add the following:

Submit proposals for using alternate AASHTO or state department of transportation approved test methods in writing for approval. Alternate methods may be allowed based on documented equivalence to the method specified.

154.03. Add the following:

Deliver the Government’s portion of the sample or split sample in an acceptable container suitable for shipment to the CO.

Section 156. — PUBLIC TRAFFIC

156.04. Delete the first paragraph and substitute the following:

Accommodate traffic according to the MUTCD, contract traffic control plan, Section 635, and this Section:

(a) Ensure safe and efficient vehicular traffic (including emergency vehicles) at all times during construction.

(b) Schedule and perform work to minimize disruption to public traffic.

156.05(b). Add the following:

Maintain access to private residences along the project location at all times. When the west approach to the project is closed, maintain access to the project from Route C-10, located on the southeast low water crossing approach at approximately Sta. 14+00 Right.

156.07(d). Add the following:

The Contractor may use 40 feet from the left and 45 feet from the right of the centerline along the low water crossing as shown in the plans as a staging area. Obtain approval from the CO before using this location for staging.

Restore staging areas to their original condition as directed by the CO.

156.08. Add the following:

Nighttime operations are permitted upon approval by the CO. Submit request to the CO for

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156.09. Delete the second sentence and substitute the following:

The superintendent may serve as the traffic control supervisor provided the requirements of Subsection 156.03 are met.

Section 157. — SOIL EROSION AND SEDIMENT CONTROL

157.01. Add the following:

This work includes updating and maintaining a SWPPP.

157.04. Add the following:

This project is covered under the Missouri Department of Natural Resource, Land Disturbance Permit Number MORA14891.

Update the Government-provided draft SWPPP in accordance with the EPA and State requirements using the information provided in the plans, specifications, and permits obtained for the project. Submit an electronic copy of the SWPPP to the CO at least 7 days before the preconstruction conference in accordance with Subsection 104.03 for approval.

Update the SWPPP constantly throughout the project as work is performed and when changes are made to the project. Maintain a copy of the current SWPPP on-site at all times.

Post a notice of the project and SWPPP near the main entrance of the construction site.

Upon completion of construction, submit a Notice of Termination (NOT) to the Missouri Department of Natural Resources. Provide a copy of the NOT and evidence of its submission.

157.18. Add the following:

Progress payments for updating and maintaining a SWPPP will be paid as follows:

25 percent of the pay item amount will be paid upon acceptance of the SWPPP.

An additional 50 percent of the pay item amount will be prorated based on total work complete.

The remaining portion of the pay item amount will be paid at final acceptance.

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Section 201. — CLEARING AND GRUBBING

201.03. Add the following:

Do not perform tree cutting operations between April 1 and November 1.

201.05(b). Delete the second and third sentence and substitute the following:

Remove all stumps and downed trees within the clearing and grubbing areas.

Section 203. — REMOVAL OF STRUCTURES AND OBSTRUCTIONS

203.04(b). Add the following:

The removal of structures and obstructions includes low water crossing concrete slabs and footings, gabion rock, gates, and barbed wire fences.

203.05(b). Delete the Subsection and substitute the following:

(b) Burn. Burning is prohibited.

203.05(c). Delete the Subsection and substitute the following:

(c) Bury. Burying debris is prohibited.

203.08. Add the following:

Progress payments for removal work by the lump sum will be paid as follows:

(a) 25 percent of the pay item amount will be paid after the start of removal operations.

(b) An additional 25 percent of the pay item amount will be paid following completion of 50 percent of the removal work.

(c) Payment of the remaining portion of the pay item amount will be paid when the removal work is completed as determined by the CO.

Section 207. — EARTHWORK GEOSYNTHETICS

207.09. Add the following:

Measure geotextile required for riprap under Section 251.

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Section 302. — MINOR CRUSHED AGGREGATE

302.02 Add the following:

Bedding and backfill 710.06

302.07 Add the following:

When measuring bedding and backfill material by the cubic yard, measured in place.

Section 501. — MINOR CONCRETE PAVEMENT

501.15. Add the following:

For the key wall section of the pavement, measure the square yard length horizontally along the edge of the pavement and the square yard width vertically.

Section 552. — STRUCTURAL CONCRETE

552.03(g). Add the following:

Use Type V Portland cement for concrete used in precast concrete box culverts.

Use Type I or II Portland cement in all other concrete.

552.03(v). Add the following:

Provide Class A(AE) concrete with a minimum 28-day compressive strength of 5,000 pounds per square inch.

552.09(b)(4). Add the following:

Provide for compressive strength testing of the concrete cylinders by an independent laboratory, qualified to perform the testing, and as approved by the CO.

Section 602. — CULVERTS AND DRAINS

602.01. Add the following:

This work includes developing a load rating for the box culvert.

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602.02. Add the following:

Preformed expansion joint fillers 712.01(b)(1) Separation-stabilization geotextile 714.01 Nonshrink grout 725.13(b)

602.03. Delete the third paragraph and substitute the following:

Construct cast-in-place extensions of precast box culverts, wingwalls, curbs, and cut-off walls for box culverts according to Section 552. Submit design drawings and details with supporting calculations for precast box culverts and the cast-in-place elements of box culverts, according to Subsection 104.03.

602.03. Add the following to the fourth paragraph:

Use excavated in-place stream material as the select topping backfill inside the reinforced concrete box culverts as shown in the plans.

602.03. Add the following:

Furnish metallic-coated corrugated steel pipe.

Install separation-stabilization geotextile according to Section 207 and as shown in the plans.

Use excavated in-place stream material as the select topping backfill inside the reinforced concrete box culverts as shown in the plans.

Once the construction is completed, provide LRFR load rating based on the as-built plans conforming to the “Manual for Bridge Evaluation, 2nd Edition, with 2011, 2013, 2014, 2015, 2016 Interim Revisions, and 2018”. Provide electronic pdf format files of as-built plans, calculations, and load rating summary using forms provided.

Load rate the culvert for Inventory and Operating using the following live loads/trucks/vehicles:

HL-93, H20, HS20, Type 3, Type 3S2, Type 3-3, SU4, SU5, SU6, SU7, EV2, and EV3.

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602.04. Add the following:

Place nonshrink grout according to Section 552 and as shown in plans.

Place preformed expansion joint fillers according to Section 552 and as shown in plans.

602.08. Add the following:

Separation-stabilization geotextile will be evaluated under Section 207.

602.09. Add the following:

Measure wingwalls, curbs, and cut-off walls under Section 552.

Section 625. — TURF ESTABLISHMENT

625.03. Add the following:

Do not use limestone.

Do not use fertilizer.

625.07. Add the following:

Prepare a native seed mix conforming to Table 625-1. One source of the seed mix can be found at Hamilton’s Native Outpost, https://www.hamiltonnativeoutpost.com/product_info.php?item_id=5.

Apply seed at the rates shown in Table 625-1 for both methods.

Table 625-1 Composition of Seed Mix

Botanic Name Common Name Weight (Pounds per Acre)

Elympus virginicus Virginia Wild Rye 1.75

Pancium capillare Witch Grass 1.75

Andropogon virginicus Broomsedge 1.75

Scirpus pendulus Nodding Bulrush 1.75

Glyceria striata Fowl Mana Grass 1.75

Chasmanthium latifolium River Oats 1.75

Total Seed 10.5

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625.08. Delete the Subsection and substitute the following:

625.08 Mulching. Apply wheat straw mulch at the rate of 2,000 pounds per acre (2-inch mat).

Do not use non-wheat straw sources

Spread or blow the wheat straw mulch by a mulch spreader utilizing forced air to provide a 2-inch thick mat over 60 to 80 percent of the disturbed soil area.

Section 633. — PERMANENT TRAFFIC CONTROL

633.04. Add the following:

Furnish square tubular steel sign posts for signs.

633.07. Add the following:

When removing and resetting signs, reuse existing posts unless otherwise directed by the CO.

Section 635. — TEMPORARY TRAFFIC CONTROL

635.04(d). Add the following:

Remove or completely cover unnecessary signs in accordance with Subsection 635.07.

635.04(i). Add the following:

Submit a certification indicating that the devices are crashworthy as defined in Subsection 101.04.

635.07. Delete the third paragraph and substitute the following:

Remove or completely cover unnecessary signs, or signs that conflict with the construction signing or the approved traffic control plan. Cover signs that are not removed so that no part of the covered sign is visible to traffic. Use sign covers meeting the following requirements:

(a) Large enough to completely cover the sign;

(b) Easy to attach to and remove from the sign without damaging the sign face. Do not use adhesives, glues, tapes, or mechanical fasteners that mar face of the sign;

(c) Black, non-reflective, and opaque;

(d) Made of plywood (minimum of 3/8-inches thick), aluminum (minimum of 0.040 inches thick), or other acceptable materials that will not be lifted, bent, or damaged by wind as approved by the CO; and

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(e) Durable enough to resist deterioration due to weathering and atmospheric conditions for the duration of the project.

Add the following after Section 637:

Section 646. — ROADSIDE DEVELOPMENT

Description

646.01 This work consists of constructing barbed wire fences.

Material

646.02 Conform to the following Section and Subsections:

Barbed wire 710.01 Fence posts 710.04 Minor concrete 601

Construction Requirements

646.03 Fences and Posts. Conform to Subsection 619.03.

Provide new barbed wire fence matching the wire strand size, post type, and post spacing of the existing fence. Submit design drawings and details of the proposed barbed wire according to Subsection 104.03.

646.04 Grounding Fences. Conform to Subsection 619.04.

646.05 Acceptance. Material for fences and fence posts will be evaluated under Subsections

106.02 and 106.03.

Construction and erection of fences will be evaluated under Subsections 106.02 and 106.04.

Measurement

646.06 Measure the Section 646 pay items listed in the bid schedule according to Subsection

109.02 and the following as applicable.

Payment

646.07 The accepted quantities will be paid at the contract price per unit of measurement for the Section 646 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

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Progress payments for the barbed wire fence installation will be paid as follows:

(a) 25 percent of the pay item amount will be paid after the barbed wire fence installation begins.

(b) An additional 25 percent of the pay item amount will be paid when 50 percent of the barbed wire fence installation is complete.

(c) Payment of the remaining portion of the pay item amount will be paid when 100 percent of the barbed wire fence installation is complete.

Section 703. — AGGREGATE

703.02. Add the following:

Do not use gravel.

703.05(a). Delete the text of Subsections (3) and (4); they are not required.

703.05(b)(1). Add the following:

The gradation only of the aggregate base may conform to the requirements of the Missouri Highways and Transportation Commission’s current edition of the Missouri Standard Specifications for Highway Construction, Section 1007.3.2, Type 5 Aggregate, found at https://www.modot.org/missouri-standard-specifications-highway-construction.

Conform to the requirements of Subsections 703.05(a) and 703.05(b) for all other properties. Submit the request according to Subsection 301.03.

703.05(b). Add the following:

(3) Plasticity index, AASHTO T 90 3 max.

(4) California bearing ratio as determined by 70 percent min.

AASHTO T 193 at 95 percent of maximum dry density in accordance with AASHTO T 180 (Method D).

703.05(c). Add the following:

The gradation only of the aggregate surface course may conform to the requirements of the Missouri Highways and Transportation Commission’s current edition of the Missouri Standard Specifications for Highway Construction, Section 1006.3, Grade A, found at https://www.modot.org/missouri-standard-specifications-highway-construction. Conform to the requirements of Subsections 703.05(a) and 703.05(c) for all other properties. Submit the request according to Subsection 301.03.

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703.06. Delete the Subsection and substitute the following:

Aggregate for Bedding and Backfill. Conform to AASHTO M 43, Size Number 57.

Section 718. — TRAFFIC SIGNING AND MARKING MATERIAL

718.01. Add the following:

For a list of acceptable manufacturers and products, refer to the Sheeting Guide found at http://safety.fhwa.dot.gov/roadway_dept/night_visib/sign_visib/sheetguide/.