Plans, Project #24-05-62-01, East Road Maintenance, Hawthorn Lake WMA, Mahaska Co.pdf

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PROJECT DESCRIPTION AUTHORIZATION TO BID

DATEENGINEERING BUREAU CHIEF

DATEAUTHORIZATION - PARKS | WILDLIFE | FISHERIES | LAW ENFORCEMENT | FORESTRY

DIRECTORY

COMPANY

ADDRESS

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PROJECT MANAGER CONSTRUCTION INSPECTOR

BRUCE L.

FLIPPIN

19513

AWOI

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UNDER THE LAWS OF THE STATE OF IOWA.

DECISIONS WITH REGARD TO THE DESIGN WERE MADE BY ME

PREPARED UNDER MY SUPERVISION AND THAT ENGINEERING

I HEREBY CERTIFY THAT THIS ENGINEERING DOCUMENT WAS

PAGES COVERED BY THIS SEAL:

MY LICENCE RENEWAL DATE IS DECEMBER 31, 20

PRINTED OR TYPED NAME

SIGNATURE DATE

BRUCE L. FLIPPIN

A.01 jason.kruse@dnr.iowa.gov

515-250-3707

JASON KRUSE

IOWA DEPARTMENT OF NATURAL RESOURCES

bruce.flippin@dnr.iowa.gov

515-281-8685

515-689-8009

BRUCE L. FLIPPIN

DES MOINES, IA, 50321

6200 PARK AVENUE

IOWA DEPARTMENT OF NATURAL RESOURCES

DNR PROJECT #24-05-62-01

DOT PROJECT # SP-00SP-0(10)—7C-00

MAHASKA COUNTY, IOWA

ROAD MAINTENANCE

HAWTHORN LAKE WMA EAST

FOR

CONSTRUCTION DOCUMENTS

IOWA DEPARTMENT OF NATURAL RESOURCES

D.01

C.01

B.05

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SITE PLAN

QUANTITIES AND GENERAL INFORMATION

TYPICAL CROSS SECTIONS AND DETAILS

TYPICAL CROSS SECTIONS AND DETAILS

TYPICAL CROSS SECTIONS AND DETAILS

TYPICAL CROSS SECTIONS AND DETAILS

TYPICAL CROSS SECTIONS AND DETAILS

LOCATION MAP

COVER SHEET

replacement, ditch construction and a small amount of silt removal at the boat ramp.

This project consists of granular roadway maintenance - blading/shaping, spreading new rock, culvert

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ITEM

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ESTIMATE REFERENCE INFORMATION

DESCRIPTION

ESTIMATED PROJECT QUANTITIES

ITEM NO. ITEM UNIT TOTAL

GENERAL NOTES

C.01

2552 - REPLACEMENT OF UNSUITABLE BACKFILL MAT'L (CLASS II PIPE BEDDING)

2533 - MOBILIZATION

2528 - TRAFFIC CONTROL

2518 - SAFETY CLOSURE

2507 - EROSION STONE

2416 - CULV, CONC RDWY PIPE, 18"

2416 - APRON, CONC, 18"

2312 - GRANULAR SURFACING ON ROAD, CLASS A CRUSHED STONE - 2, 3, 4-INCH

2127 - RECONSTRUCTION OF ROADBED - BLADING/SHAPING

2125 - RESHAPING DITCHES

2102 - EXCAVATION, CL 10, WASTE

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7.22 fence, rock ditch checks, silt basins or silt dikes.

to install and maintain erosion control features on the project. This may involve seeding, silt The contractor is expected to have materials, equipment, and labor available on a daily basis finish grade.

The contractor shall shape graded area to maintain surface drainage. All elevations are to caused by such work.

additional compensation will be allowed to the contractor for any interference or delay determine their existence and exact location and to avoid damage thereto. No claims for existence of which is presently not known or shown. It is the contractor’s responsibility to their locations must be considered approximate only. It is possible there may be others, the structures and utilities have been plotted from available surveys and records and therefore access to these facilities for necessary modification of services. Underground facilities, of those utilities prior to the beginning of any construction. The contractor shall be afforded construction area, it shall be the responsibility of the contractor to notify the DNR Engineer Where utilities and fixtures are shown as Existing on the plans or encountered within the will be subject to the approval of the DNR Engineer.

equipment or use these areas for storage of materials. Storage, parking and service areas construction limits. The contractor will not be permitted to park or service vehicles and The contractor shall not disturb desirable grass areas and desirable trees outside the stated in the plans or approved by the DNR Engineer.

hauled to these sites. No material shall be placed within the right-of-way, unless specifically into the work involved on this project. No payment for overhaul will be allowed for material material (excavated material or broken concrete) which is not desirable to be incorporated It shall be the contractor’s responsibility to provide waste areas or disposal sites for excess proceeding with the work.

shall notify the DNR Engineer of any discrepancies, omissions, and/or conflicts prior to The contractor shall verify, at the site, all dimensions and conditions shown on the plans and to the plans, specification, special provisions and contract.

visit the project site shall not relieve the contractor from performing the work in accordance themselves with the actual job conditions prior to bidding and the start of work. Failure to The contractor shall visit the site and inspect the project area and thoroughly familiarize ordinances.

All work shall conform to and be performed in accordance with all applicable codes and

Verify actual locations and elevations with DNR Engineer.

C. DOT approved source.

B. Fill to haunch of culvert.

A. Use for pipe bedding - Use Class II material11

A. Follow Iowa DOT specification section 2528, subsection N -Safety Closure, 1. Road Closures for set-up.8

B. DOT approved source.

A. Place at the inlet of new culvert.7

E. DOT approved source.

D. Wrap and pin ALL connections - use type 3 connections.

C. Use existing flowline elevations for new culvert installation.

B. Dispose of existing culvert offsite.

A. Remove and replace existing culvert.5-6

D. Quantities based on a 4-inch depth.

C. DOT approved source.

B. Roll after spreading.

A. A final leveling of the aggregate after being dumped, is required.4

D. DO NOT WASTE HIGH SHOULDER MATERIAL IN DITCH!

C. Remove any high shoulder areas, before spreading new rock. See sheet B.01 for details.

B. Re-establish roadway crown: 4% positive drainage each way from centerline; 4% across the width in banked sections.

A. Repair potholes by scarifying surrounding area to depth of pothole and recompacting.3

D. Spoil may be spread in field west of ditch. No more than 6-inches deep.

C. DNR Field Engineer will mark inflection point - Leave a 20-foot wide area for field access.

B. Positive drainage to existing culvert: ~0+00 to 100+00 drains to roadway culvert. ~100+00 to 600+00 drains to site culvert.

A. Make a ditch approximately 2-foot deep and 4-foot wide - See Sheet B.02 for details.2

C. Dispose of spoil offsite.

B. Remove at the direction of the DNR Field Engineer.

A. This item for removing gravel/silt, above and below water level, on and around the boat ramp.1