Attachment_A_Statement_of_Work.pdf

Repair Roadway Damage on Company Creek Road North Cascades National Park Attachment A: Statement of Work

NORTH CASCADES NATIONAL PARK SERVICE COMPLEX

NORTH CASCADES NATIONAL PARK

ROSS LAKE NATIONAL RECREATION AREA

LAKE CHELAN NATIONAL RECREATION AREA

STEHEKIN, WASHINGTON

Repair Roadway Damage on Company Creek Road

PMIS NO. 324826

STATEMENT OF WORK

NATIONAL PARK SERVICE

PACIFIC WEST REGION

February 2022

Repair Roadway Damage on Company Creek Road North Cascades National Park

1.0 - GENERAL

1.1 DESCRIPTION OF WORK

A. The work of this contract consists of stabilizing a road and riverbank along the Stehekin River at the North Cascades National Park (NOCA).

B. All work will be performed under a single firm fixed price contract.

1.2 DEFINITION OF CONTRACT LINE ITEMS

Base Item No. 1 – Purchase and transport rock to storage location.

Purchase and transport 250 tons of large rock to NPS designated storage location at the maintenance yard “fairway” in Stehekin. The 250 tons of large rocks shall comply with Federal Highway Administration (FHWA) Class 5 riprap specifications

Base Item No. 2 – Transport rock to worksite and construct one new rock barb and repair one existing rock barb.

Transport approximately 80 cubic yards of large rock to installation site at mile post 2.2 on Company Creek Road. The Contractor will use NPS-furnished rock that is stored at the NPS maintenance fairway.

Construct one rock barb and repair an existing rock barb in the channel according to specifications in Enclosure A. No machinery is allowed below OHWM (Ordinary High- Water Mark).

After construction, transport remaining rock to the NPS maintenance area fairway for storage.

Base Item No. 3 – Transport gravel to worksite and elevate 650 linear feet of roadway

Transport approximately 910 cubic yards of material to installation site at mile post 2.2 on Company Creek Road. The Contractor will use NPS-furnished material located at the Company Creek gravel pit.

Elevate 300 feet of roadway to a height of three feet. Roadway width is 20 feet. The westward edge of elevated roadway will need to be tapered to existing road elevation for a length of approximately 250 feet. The eastward edge of the elevated road will be tapered to the existing road surface at ~3 percent grade (a distance of ~100 feet). Road base will be composed of pit-run and surfaced with 5/8 inch minus crushed gravel.

Details are provided in Enclosure B.

After construction, transport all remaining material to the Company Creek gravel pit for storage.

Repair Roadway Damage on Company Creek Road North Cascades National Park

Base Item No. 4 –Transport large rock and gravel to worksite and construct 100 linear feet of grade control.

Transport approximately 70 cubic yards of material to installation site at mile post 2.2 on Company Creek Road. The Contractor may use NPS-furnished material located at the Company Creek gravel pit.

Construct 100 linear feet of grade control structures. Each structure is essentially a trench that is 6ft wide and 3ft deep and filled mainly with large native rocks, and has sand and gravel washed in to fill voids. Details are provided in Attachment B.

After construction, transport all remaining material to the Company Creek gravel pit for storage.

Option Item A – Transport large rock and gravel to worksite and construct 50 linear feet of grade control.

Transport 35 cubic yards of material from Company Creek gravel pit to the installation site at mile post 2.2 on Company Creek Road.

Construct 50 linear feet of grade control structures. Each structure is essentially a trench that is 6ft wide and 3ft deep and filled mainly with large native rocks, and has sand and gravel washed in to fill voids. Details are provided in Attachment B.

After construction, transport all remaining material to the Company Creek gravel pit for storage.

1.3 LOCATION

A. The work is in Stehekin, Washington, at the north end of Lake Chelan. The site is remote, and there is no road access to Stehekin, though there are roads within Stehekin Valley.

B. The NPS will clear snow from the road to ease access to the property, if necessary. However, the Contractor shall remove snow in and around where work will occur.

C. NPS-concessionaire and private lodging options may be available in Stehekin. Maps, description, accommodations, and services may be viewed at www.lodgeatstehekin.com, http://www.nps.gov/noca/planyourvisit/stehekin.htm, www.stehekinvalley.com, and www.stehekin.com.

D. Public phone service at Stehekin is limited to a single telephone requiring credit or calling card near the landing. Cellular phone service is not available.

E. Public internet access is not available.

F. Transportation is available via two passenger ferries, private boat, or barge to the marina at Stehekin. Materials may be transported to the site by barges, which do not run on a fixed schedule but can be chartered for a fee. Some tools and materials may be transported on the ferries.

http://www.lodgeatstehekin.com/ http://www.nps.gov/noca/planyourvisit/stehekin.htm http://www.stehekin.com/

Repair Roadway Damage on Company Creek Road North Cascades National Park

Transpotation – Information and links to area public transportation (provided for information purposes only, not an endorsement):

Lake Chelan Boat Company (Lady of the Lake) Address: 1418 W Woodin Ave, Chelan, WA 98816 Phone: 509-682-4584 Website: http://ladyofthelake.com/

Stehekin Ferry

Phone: 509-669-5045 Website: https://www.stehekinferry.com/

Mountain Barge Service (MBS) Address: 1222 W. Woodin Ave, Chelan, WA 98816 Phone: 509-682-2493 Email: info@mountainbarge.com

1.4 SCHEDULE

A. Target on-site work dates are approximately April 11 – April 30, 2022, to take advantage of lower river flow and lack of snow on site.

B. Period of performance: Contractor has 30 days to substantially complete the entire work after the date the contractor receives the notice to proceed from the Contracting Officer.

1.5 SPECIAL CONSTRUCTION REQUIREMENTS

A. Contractor shall at all times conduct their operations to ensure the least inconvenience to the public. Confine storage of materials to the work limits of the project.

B. All excess materials and project debris, including all trash from any Contractor generated source, shall be completely removed from the park for reuse, recycling, or environmentally responsible disposal at a down lake site. No disposal of any items shall be allowed within the park or surrounding community. Excavated native soil and brush may be taken to the maintenance area for storage and use by the NPS. This is to be determined by the COR as soil is excavated.

C. Work Restrictions: Work may occur only between 7:00 am and 5:00 pm, Monday through Friday, except those days designated as federal holidays, unless prior permission is granted by the COR.

The Contractor shall propose a schedule, which shall be discussed with the COR. The final schedule shall be approved by the COR prior to the commencement of the actual work.

D. Traffic control: Company Creek Road is the only means to access areas of Stehekin for residents, park staff and visitors. While it is expected delays will occur during work, maximum delay for traffic in any direction shall not exceed 15 minutes. Provide signage on each end of the construction site for notification. The NPS will notify the Stehekin community of the work occurring and to expect delays.

E. Keep project area neat, orderly and in a safe condition at all times.

1.6 FIELD VERIFICATION

A. Field verify all conditions affecting the work of this contract before mobilizing. All provided measurements are estimates only.

http://ladyofthelake.com/ https://www.stehekinferry.com/ mailto:info@mountainbarge.com

Repair Roadway Damage on Company Creek Road North Cascades National Park

1.7 CONSTRUCTION MATERIALS

A. The Contractor shall supply 250 tons of large rocks shall comply with Federal Highway Administration (FHWA) Class 5 riprap specifications.

B. The NPS will supply all other material. Gravel and pit-run material is in the gravel pit area located adjacent to the airstrip near the maintenance area fairway. The intent of the NPS to provide material for this particular use is to limit material brought into Stehekin to the greatest extent possible. The contractor is responsible for hauling material from the gravel pit to the work site.

1.8 WATER AND SANITARY SERVICES

A. Water is not available for Contractor’s use at the work site. NPS shall not provide any water to the contractor.

B. If the contractor plans to draw any amount of surface water (from a river, stream, spring, or lake) for any purpose then they must contact the Washington State Department of Ecology to apply for a permit and follow the limitations on draw rates. Please keep in mind that permits can take 90-120+ days to acquire. https://ecology.wa.gov/

C. If the contractor plans to use groundwater (from a well) then a permit from the Washington State Department of Ecology is required if the contractor will draw more than 5,000 gallons per day for this industrial use. https://ecology.wa.gov/

D. Public restrooms are located at the Stehekin Landing near the general store, approximately 6.5 miles from the job site. Vault toilets are also available at Rainbow Falls, approximately 3.5 mile from the job site. Contractor will provide portable toilets at location(s) approved by NPS.

1.9 ELECTRICAL POWER

A. Contractor will need to furnish their own auxiliary source of power for power tools and lights if required.

B. Auxiliary power source, such as generators, are to be run during working hours only as to disturb residences are little as possible.

2.0 PRODUCT DETAILS EQUIPMENT

A. All equipment shall be leak-free, and all servicing must occur off-site on private property or in a location approved by the COR.

B. All equipment working in or near the water must contain bio-based hydraulic fluid. Information on this material can be viewed at https://www.biopreferred.gov/BioPreferred/

C. Equipment gross weight shall not exceed Harlequin bridge weight limits and sizes. Crossing the bridge is the only way to access the worksite and maintenance area “fairway” to store rock. Refer to Attachment C for bridge details.

D. All equipment must be cleaned of weeds and seeds, see 3.2 below.

https://ecology.wa.gov/ https://ecology.wa.gov/ https://www.biopreferred.gov/BioPreferred/

Repair Roadway Damage on Company Creek Road North Cascades National Park

2 .2 ROCK SPECIFICATIONS

A. Purchased rock composition shall meet FHWA class 5 riprap specifications and adhere to FHWA standards in Attachment D

B. Purchased rock may be stored in the maintenance area “fairway” located just across Harlequin Bridge. It is the contractor’s responsibility to haul rock delivered from the barge to the fairway and then to and from the job site. The COR will designate the space for the rock to be stored at this location. Attachment D shows the fairway location in relation to Harlequin Bridge. Refer to Attachment B for bridge details.

3.0 EXECUTION CONTRACTOR TASKS

A. Attachment A: Maps, Photos, and Technical Drawings, includes details of how to construct rock barbs and grade control.

B. Prior to beginning work, coordinate work schedule with the Contracting Officer’s Representative (COR). No physical work shall commence at the site until a notice to proceed is issued by the Contracting Officer.

C. Contractor shall give a minimum 7-day notice to the COR prior to mobilization.

3.2 AVOIDANCE OF NOXIOUS WEEDS

A. To prevent the introduction of the seeds from noxious weeds into Stehekin valley or onto NPS land, the Contractor shall wash all mechanized equipment thoroughly, top to bottom, before transport via barge. This includes the removal of all soil, seeds, vegetative matter or other debris that could contain or hold seeds or plant material. Diffuse or Spotted Knapweed, Rush Skeleton weed, and Japanese Knotweed are the primary noxious weeds of concern.

B. The Contractor shall employ whatever cleaning methods are necessary to ensure compliance with the terms of this provision and shall notify the NPS prior to moving each piece of mechanized equipment into Stehekin valley. Cleaning of equipment shall not occur on NPS land. Notification will include identifying the location of the equipment's most recent operation.

C. The NPS will inspect each piece of equipment prior to its being placed into service. If a piece of equipment fails the inspection, the Contractor will be responsible to perform whatever methods are necessary to pass upon re-inspection and will bear all costs.

D. The Contractor shall certify in writing, compliance with the terms of this clause prior to placement on a barge for arrival in Stehekin valley. For the purposes of this provision, "equipment" means all ground-based contract machinery, including pickup trucks, cars, or other vehicles used to transport personnel.

4.0 ACCIDENT PREVENTION

A. Accident Prevention Plan (APP): Prior to beginning work contractor shall submit for approval a site-specific APP. The Contracting Officer will review the proposed program for compliance

Repair Roadway Damage on Company Creek Road North Cascades National Park with OSHA and project requirements. If the program requires any revisions or corrections, the Contractor shall resubmit the program within 10 days. The Contracting Officer will not issue the Notice to Proceed until the APP is approved. The plan shall include:

B. Name of responsible supervisor to carry out the program.

C. Weekly and monthly safety meetings.

D. First aid procedures.

E. Description of each phase of the work, the hazards associated with each major phase, and the methods proposed to ensure property protection and safety of the public, National Park Service personnel, and Contractor's employees.

F. Training, both initial and continuing.

G. Planning for possible emergency situations, such as earthquakes, floods, windstorms, fires, cave ins, slides, explosions, and power outages. Such planning shall take into consideration the nature of construction, site conditions, and degree of exposure of persons and property.

H. Waste control and potential hazardous materials precautions.

I. Personal protective equipment.

J. Hauling routes – coordinate with Contracting Officer.

K. Ensure first aid is available and training adequate for the number of employees and the type of construction at the site.

L. Report all accidents to the COR immediately. A reportable accident is defined as death, occupational disease, traumatic injury to an employee or the public, property damage in excess of $100, and fires.

M. Form DI-134 must be completed and submitted to the COR within three days of an accident.

Forms are available from the COR.

N. Provide personal protective equipment that meets the requirements of OSHA, NIOSH and MSHA, Material Safety Data information where applicable, as well as ANSI.

O. Inspect personal protective equipment daily and maintain in a serviceable condition. Clean, sanitize, and repair, as appropriate, personal items before issuing them to another individual.

Inspect and maintain other protective equipment and devices before use and on a periodic basis to ensure safe operation.

P. Provide all necessary traffic barriers, traffic control signs, markers, and flaggers when required during operations. Traffic control for occupied work areas shall be in accordance with National Standards contained in the Manual of Uniform Traffic Control Devices (MUTCD).

Q. Post specific reporting instructions for contacting Emergency Response Personnel in Stehekin in conspicuous locations at the work site.

Repair Roadway Damage on Company Creek Road North Cascades National Park

R. Identify materials considered to be “Hazardous Materials” by industry standards and provide protection and security for identified materials throughout contract period. Hazardous materials spills shall be reported immediately and clean up shall be the sole responsibility of contractor.

S. As a minimum, conduct weekly 15 minute "toolbox" safety meetings. These meetings shall be conducted by a foreman and attended by all personnel at the worksite. Conduct monthly safety meetings for all levels of supervision. Notify the COR so that they may attend. These meetings shall be used to review the effectiveness of the Contractor's safety effort, to resolve current health and safety problems, to provide a forum for planning safe work activities, and for updating the accident prevention program. The COR will enter the results of the meetings into their daily log.

T. The work site is designated as a hard hat area by the Contracting Officer. The hard hat area shall be posted by the Contractor in a manner satisfactory to the COR. It is the Contractor's responsibility to require all those working on or visiting the site to wear hard hats and other necessary protective equipment at all times. As a minimum, provide six hard hats for use by visitors. Change liners before reissuing hats.

4.1 SPILL PREVENTION

A. Spill Prevention/Response Plan (SPP): Prior to beginning work contractor shall submit for approval a site-specific Spill Prevention and Response Plan. The COR will review the proposed program for compliance with OSHA and project requirements. If the program requires any revisions or corrections, the Contractor shall resubmit the plan within 10 days. The Contracting Officer will not issue the Notice to Proceed until the SPP is approved.

4.2 SITE RESTORATION

A. Fill materials, if needed, shall be native soils, stone, gravel or sand, free of debris, frozen materials, roots and other organic matter.

B. Fill material shall be approved by COR prior to use.

C. NPS will authorize use of fill material from within NPS boundaries, depending on the amount required. Contractor will be responsible for hauling such material to the job site. Material shall be approved by COR prior to use.

D. Ensure all areas to be backfilled are free of standing water, frost, frozen material and debris.

E. Grade backfilled areas to blend with original contours.

F. Remove any brush or woody debris not used in the project. May be stored at the maintenance area for NPS use depending on the composition. This will be determined by the COR.

PART 5 - SUBMITTALS

4 .1 PRE-WORK

Repair Roadway Damage on Company Creek Road North Cascades National Park

A. Accident Prevention Plan (APP).

B. Spill Prevention Plan (SPP).

C. Letter designating Project Superintendent.

D. A list of Subcontractors for this project.

E. Written statements from subcontractors certifying compliance with applicable labor standards clauses, using SF1413.

F. Satisfactory evidence of liability insurance coverage and worker’s compensation insurance for the Contactor and all subcontractors.

G. List all required construction permits required.

PART 6 – ENCLOSURES

A. Barb Construction Detail

B. Maps, Photos, and Technical Drawings

C. Harlequin Bridge Weight Limit and Report Excerpt

D. Federal Highways Riprap Specifications

Enclosure B Maps, Photos, and Technical Drawings

Project location map

Bank Barb Detail

Location of damaged barbLocation of new barb

Repair damaged barb Install new barb

Raise road surface (see profile)

Grade control under road

A D

CB

Project location map

250’ 300’ 100’

18” 36”

Existing road surface

New road surface

Not to scale

A B C D

Road surface profile

Grade Control Detail

Enclosure C

STRUCTURE SUMMARY STRUCTURE NO. 9470-011P

HARLEQUIN BRIDGE INSPECTION DATE: 8/27/18

BRIDGE IDENTIFICATION AND DESCRIPTION

MAIN SPAN MATERIAL:

MAIN SPAN TYPE:

# OF BEAMS, MAIN SPAN: ..

DECK TYPE:

WEARING SURFACE:

ABUT. FOUNDATIONS:

PIER FOUNDATION(S):

ABUTMENT / PIER MAT'L: ...

PROJ./PLAN REF. NO:

NPS ROAD CLASS:

STRUCTURE HISTORY:

STEEL

TRUSS - THRU

WOOD OR TIMBER

WOOD OR TIMBER

SPREAD FOOTING ON PILES

N/A / SPREAD FTG ON BEARING MAT'L

CONCRETE

NOCA 10(3) / RG2633

3 - SPECIAL PURPOSE

LOCATION

NO. OF MAIN SPANS:

NO. OF APPR. SPANS:

STRUCT. TOTAL LENGTH: ..

MAX. SPAN LENGTH:

DECK WIDTH:

CURB TO CURB WIDTH:

YEAR BUILT:

YEAR RECONSTRUCTED: ..

SKEW ANGLE:

FRACTURE CRITICAL:

167.3 FT (51.0 M)

162.7 FT (49.6 M)

20.3 FT (6.2 M)

15.4 FT (4.7 M)

N/A

0 °

YES

NORTH CASCADES NATIONAL PARK MILE POINT: ..................... 0.01 (KM PT 0.02)

STATE: ................................. WASHINGTON LOCATION: 1.2 Miles from Maintenance Center.

FACILITY CARRIED: ............ COMPANY CREEK ROAD

FEATURE INTERSECTED: .. STEHEKIN RIVER

STRUCTURE EVALUATION SUMMARY

This weathering steel warren thru-truss bridge is in good condition overall, and only minor maintenance is needed at this time. The recommended maintenance includes fastening loose timber running planks and replacing deteriorated planks tighten the fasteners in the railing posts at rail splice connections cleaning debris off bridge components placing engineered riprap at the abutments and trimming/removing vegetation that is growing near the bridge.

Consideration should also be given to installing an approach guardrail system to help improve motorist safety.

INSPECTION TEAM: J. HENSLEY, S. LOFTUS

CONDITION ASSESSMENT:

JORDAN HENSLEY, P.E., FIELD TEAM LEADER 360-619-7910

REPORT REVIEW:

MARCUS MILLER, P.E., BRIDGE INSPECTION ENGINEER 703-404-6252

REPORT APPROVAL: DATE: 1/3/19

JORGOMAI CEESAY, PH.D., P.E., BIP SUPERVISORY ENGINEER 703-404-6244

STRUCTURE LOAD RATING STRUCTURE NO. 9470-011P

TRUCK TYPE

INVENTORY RATING (NORMAL TRAFFIC) OPERATING RATING (MAXIMUM LOAD)

TONS METRIC TONS TONS METRIC TONS

H 40 36 47 43

HS 43 39 50 45

TYPE 3 42 38 49 44

TYPE 3S2 47 43 53 48

TYPE 3-3 50 45 57 52

DESIGN LOADING: HS20 (MS18)

X CAPACITY MEETS OR EXCEEDS DESIGN LOAD

CAPACITY IS LESS THAN DESIGN LOAD

X ORIGINAL LOAD RATING CALCULATION APPLICABLE

ORIGINAL LOAD RATING CALCULATION REVISED

DATE OF LOAD RATING CALCULATION: 7/16

LOAD RATING CONTROLLED BY:

REMARKS: SEE BRIDGE FILE FOR LOAD RATING CALCULATIONS.

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 9470-011P

STRUCTURE IDENTIFICATION

(201) PARK: NORTH CASCADES NATIONAL PARK

(202) STRUCTURE NAME: .......... HARLEQUIN BRIDGE

(203) STRUCTURE KIND: ............1 - BRIDGE

(204) STRUCTURE NUMBER: ..... 9470-011P

(205) NPS REGION: .................... 6 - PACIFIC WEST

(206) ROUTE CODE NUMBER: ... 100

(207) ROAD SECTION NO: ..........011P

(208) NPS ROAD CLASS: ............ 3 - SPECIAL PURPOSE

(209) WITHIN NPS BNDRY?: .......YES

(210) OPERATING UNIT: ............. STEHEKIN

(211) PROJECT NO(S): ................NOCA 10(3)

(212) DRAWING NUMBERS: ....... RG2633

(21) MAINTAINED BY: ................. 66 - NATIONAL PARK SERVICE

(22) OWNER: ............................... 66 - NATIONAL PARK SERVICE

(1) STATE:

(2) STATE HWY. AGENCY DIST:

(3) COUNTY CODE:

(4) CITY/PLACE CODE:

(5) INVENTORY ROUTE:

(6) FEATURES INTERSECTED:

(7) FACILITY CARRIED:

(8) STATE STRUCTURE NO:

(9) LOCATION:

(10) INV. RTE. - MIN. VERT. CLR: ..

(11) MILE POINT:

(27) YEAR BUILT:

(106) YEAR RECONSTRUCTED:

(20) TOLL:

(37) HISTORICAL DESIGNATION: ..

530 - WASHINGTON (WA)

007 - CHELAN

168001000

STEHEKIN RIVER

COMPANY CREEK ROAD

9470011P0000000

1.2 Miles from Maintenanc

11.00 FT (3.35 M)

0.01 (KM PT 0.02)

N/A

3 - FREE ROAD

3 - POSSIBLY ELIGIBLE

STRUCTURE DESCRIPTION, FOUNDATION, AND DECK TYPE

(43A) MAIN STR. MATERIAL: ..

(43B) MAIN STR. TYPE:

(45) NO. OF MAIN SPANS:

(48) MAX. SPAN LENGTH:

(49) STRUCTURE LENGTH:

(216A) ABUTMENT #1 FDN:

(216B) ABUTMENT #2 FDN:

(217A) PREDOM. PIER FDN.: ..

(217B) SECOND. PIER FDN: ...

(107) DECK TYPE:

3 - STEEL

10 - TRUSS - THRU

162.7 FT (49.6 M)

167.3 FT (51.0 M)

3 - SPREAD FOOTING ON PILES

3 - SPREAD FOOTING ON PILES

6 - N/A

2 - SPREAD FTG ON BEARING MAT'L

8 - WOOD OR TIMBER

(44A) APPR. STR. MATERIAL: ........ 0 - OTHER

(44B) APPR. STR. TYPE: ................ 00 - OTHER

(46) NO. OF APPROACH SPANS: .. 2

(108) WEAR SURFACE/PROTECT SYSTEM:

A) TYPE WEARING SURFACE: .. 7 - WOOD OR TIMBER

B) TYPE MEMBRANE: ................. 0 - NONE

C) TYPE PROTECTION: .............. 0 - NONE

(218) IS SALT USED?: ..................... NO

LOAD RATING AND POSTING

(31) DESIGN LOAD: ................. 5 - HS20 (MS18) (41) LOAD RESTRICTION: ......... A - OPEN, NO RESTRICTION

(66) INVENTORY RATING: ...... 43.0 TONS (39.0 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 50.0 TONS (45.4 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 8/18 (91) FREQ. OF INSP: 24 MONTHS (92 / 93) CRITICAL FEATURE INSPECTION (CFI):

(219) ADD. STUDIES NEEDED: N - 0 - NONE (A) FRACTURE CRITICAL: ... YES

INSP. EVERY: 24 MONTHS - LAST INSP. : 8/18 (220) SPECIAL STUDY TYPE: 4 - NON-DESTRUCTIVE TESTING

(B) UNDERWATER: .............. NO

(221) SPECIAL STUDY DATE: 9/90 INSP. EVERY: MONTHS - LAST INSP. :

(C) SPECIAL INSPECTION: .. NO

INSP. EVERY: MONTHS - LAST INSP. :

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 9470-011P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 48°20'57.00" (51) CURB TO CURB WIDTH: ........... 15.4 FT (4.7 M)

(17) LONGITUDE: ......................... 120°42'50.00" (52) DECK WIDTH: ............................ 20.3 FT (6.2 M)

(19) DETOUR LENGTH: ............... 199 MI (199 KM) (32) APPR. ROADWAY WIDTH: ........ 16.0 FT (4.9 M)

(28A) LANES ON STRUCT: .......... 01 (213) APPR. PAVEMENT WIDTH: ..... 12.0 FT (3.7 M)

(28B) LANES UNDER STRUCT: ... 00 LEFT SHOULDER: .................. 2.0 FT (0.6 M)

(42A) SERVICE ON: ..................... 1 - HIGHWAY RIGHT SHOULDER: ................ 2.0 FT (0.6 M)

(42B) SERVICE UNDER: .............. 5 - WATERWAY (33) BRIDGE MEDIAN: ....................... 0 - NO MEDIAN

(29) AVG. DAILY TRAFFIC: .......... 100 (34) SKEW ANGLE: ............................ 0 °

(30) YEAR OF ADT: ...................... 2010 (35) DECK FLARE?: ........................... NO

(114) FUTURE ADT: ..................... 200 (47) TOTAL HORIZ. CLEARANCE: .... 11.9 FT (3.6 M)

(115) YEAR OF FUTURE ADT: ..... 2030 (50) SIDEWALKS:

(101) PARALLEL STRUCTURE: ... N - NONE LEFT : ...................................... 0.0 FT (0.0 M)

(38) NAVIGATION CONTROL?: ... 0 RIGHT : ................................... 0.0 FT (0.0 M)

(39) VERTICAL CLEARANCE: ...... 0.0 FT (0.0 M) (214) BRIDGE RAIL TYPE:

(40) HORIZ. CLEARANCE: ........... 0.0 FT (0.0 M) RAIL CONFIGURATION: ......... 1 - FULL HEIGHT (NO PARAPE

(111) ABUT. OR PIER PROT: ....... 1 - NAV PROTECTION NOT REQUIRED MATERIAL: .............................. 7 - TIMBER

DESIGN TYPE: ........................ 1 - CONTINUOUS RAIL LATERAL UNDERCLEARANCE:

(55) RIGHT: ....................... 0.0 FT (0.0 M) (215) BRIDGE RAIL HEIGHT: ............ 2.25 FT (0.69 M)

(56) LEFT: ......................... 0.0 FT (0.0 M) (53) MIN. VRT. CLEAR. OVER DECK: 11.00 FT (3.35 M)

(54) MIN. VRT. UNDERCLEARANCE: 0.00 FT (0.00 M)

CONDITION AND APPRAISAL DATA, PROPOSED IMPROVEMENTS, AND COST

(58) DECK:

(59) SUPERSTRUCTURE:

(60) SUBSTRUCTURE:

(61) CHANNEL:

(62) CULVERT: ...........................N

(222) APPROACHES:

(223) RETAINING WALL: ........... N

(36) TRAFFIC SAFETY FEAT: ... 1000

(75A) TYPE OF WORK:

(75B) WORK DONE BY:

(76) IMPROVEMENT LENGTH: ..

(67) STRUCTURAL EVALUATION:

(68) DECK GEOMETRY:

(69) UNDERCLEARANCES:

(71) WATERWAY ADEQUACY:

(72) APPROACH ALIGNMENT:

(113) SCOUR CRITICAL:

(225) PURPOSE OF IMPROVEMENT:

(226) PRIORITY OF IMPROVEMENT:

(227) MAINTENANCE COST:

(228) REHAB./RECONSTR. COST: ...

(229) CONSTRUCTION COST:

N

1 - MAINTENANCE

D - MINOR

$5,000

$0

$0

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

APPENDIX STRUCTURE NO. 9470-011P

Section 705

Section 705. — ROCK

705.01 Gabion and Revet Mattress Rock. Furnish angular stone from a rock quarry or cut that is hard, durable, free of organic and spoil material, and resistant to weathering and water action. Do not use crushed river rock or rock with rounded surfaces. Conform to the following:

(a) Durability index (course), AASHTO T 210 50 min.

(b) Density of a filled basket 100 lb/ft3 (1600 kg/m3) min.

(c) Gradation. Furnish rock with breadth and thickness at least one-third its length.

(1) Baskets 1 foot (300 millimeters) or greater in the vertical dimension.

(a) Maximum dimension 8 in (200 mm)

(b) Minimum dimension 4 in (100 mm)

(2) Baskets less than 1 foot (300 millimeters) in the vertical dimension.

(a) Maximum dimension 6 in (150 mm)

(b) Minimum dimension 3 in (75 mm)

(d) Los Angeles abrasion, AASHTO T 96 50 percent max.

705.02 Riprap. Furnish hard, durable, angular rock that is resistant to weathering and water action and free of organic or other unsuitable material. Angular rock is characterized by sharp, clean edges at the intersections of relatively flat surfaces. Do not use shale, rock with shale seams, or other fissile or fissured rock that may break into smaller pieces in the process of handling and placing. Conform to the following:

(a) Apparent specific gravity, AASHTO T 85 2.40 min.

(b) Absorption, AASHTO T 85 4.0 percent max.

(c) Soundness of aggregate using sodium sulfate, 12 percent loss max.

AASHTO T 104 (5 cycles)

(d) Los Angeles abrasion, AASHTO T 96 50 percent max.

(e) Rock particle intermediate dimension (width) and longest dimension minimum dimension (thickness) (length) min.

(f) Gradation, FLH T 521 Table 705-1

ATTACHMENT C: FEDERAL HIGHWAYS RIPRAP SPECIFICATIONS

Enclosure D

Section 705

Table 705-1 Gradation Requirements for Riprap(1)

Class % of Rock

Equal or Smaller by Count, DX

Range of Intermediate Dimensions,(2) inches (millimeters)

Range of Rock Mass,(3) pounds (kilograms)

100 9 – 15 (230 – 380) 59 – 270 (27 – 120) 85 7 – 11 (180 – 280) 28 – 110 (13 – 50) 50 5 – 8 (130 – 200) 10 – 42 (5 – 19) 15 3 – 6 (80 – 150) 2 – 18 (1 – 8)

100 15 – 21 (380 – 530) 270 – 750 (120 – 340) 85 11 – 15 (280 – 380) 110 – 270 (50 – 120) 50 8 – 11 (200 – 280) 42 – 110 (19 – 50) 15 6 – 8 (130 – 200) 10 – 42 (6 – 19)

100 21 – 27 (530 – 690) 750 – 1600 (340 – 730) 85 15 – 19 (380 – 480) 270 – 560 (120 – 250) 50 11 – 14 (280 – 360) 110 – 220 (50 – 100) 15 8 – 10 (200 – 250) 42 – 81 (19 – 37)

100 27 – 33 (690 – 840) 1600 – 2900 (730 – 1300) 85 19 – 23 (480 – 580) 560 – 990 (250 – 450) 50 14 – 17 (360 – 430) 220 – 400 (100 – 180) 15 9 – 12 (230 – 300) 59 – 140 (27 – 64)

100 33 – 39 (840 – 990) 2900 – 4850 (1300 – 2200) 85 23 – 28 (580 – 710) 990 – 1800 (450 – 820) 50 17 – 20 (430 – 510) 400 – 650 (180 – 290) 15 11 – 15 (280 – 380) 110 – 270 (50 – 120)

100 39 – 45 (990 – 1140) 4850 – 7400 (2200 – 3350) 85 28 – 32 (710 – 810) 1800 – 2650 (820 – 1200) 50 20 – 23 (510 – 580) 650 – 990 (290 – 450) 15 13 – 17 (330 – 430) 180 – 400 (82 – 180)

100 45 – 54 (1140 – 1370) 7400 – 12,800 (3350 – 5800) 85 32 – 38 (810 – 970) 2650 – 4450 (1200 – 2000) 50 23 – 28 (580 – 710) 990 – 1800 (450 – 820) 15 15 – 20 (380 – 510) 270 – 650 (120 – 290)

100 54 – 66 (1370 – 1680) 12,800 – 23,400 (5800 – 10,600) 85 38 – 47 (970 – 1190) 4450 – 8450 (2000 – 3850) 50 28 – 35 (710 – 890) 1800 – 3500 (820 – 1600) 15 19 – 25 (480 – 640) 560 – 250 (250 – 570)

100 66 – 78 (1680 – 1980) 23,400 – 38,600 (10,600 – 17,500) 85 47 – 55 (1190 – 1400) 8450 – 13,500 (3850 – 6100) 50 35 – 41 (890 – 1040) 3500 – 5600 (1600 – 2550) 15 22 – 30 (560 – 760) 870 – 2200 (390 – 1000)

100 78 – 90 (1980 – 2290) 38,600 – 59,300 (17,500 – 26,900) 85 55 – 64 (1400 – 1630) 13,500 – 21,300 (6100 – 9650) 50 41 – 48 (1040 – 1220) 5600 – 9000 (2550 – 4100) 15 26 – 36 (660 – 910) 1450 – 3800 (660 – 1700)

(1) Gradation includes spalls and rock fragments to provide a stable, dense mass.

(2) The intermediate dimension is the longest straight-line distance across the rock that is perpendicular to the rock’s longest axis on the rock face with the largest projection plane.

(3) Rock mass is based on a specific gravity of 2.65 and 85 percent of the cubic volume as calculated using the intermediate dimension.