Specifications for Construction of Roads and Bridges in National Forests and National Parks, 1941

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Contents

Measurement and Payment Page 1
41
7
43
9
44
23
45
CONSTRUCTION DETAILS EARTHWORK Item znih 69 h 46 49 53 56 58 59 64 69 72 20 Clearing and Grubbing Pay areas shown on plans
46
Random Clearing Pay areas limited by definition
49
21 Random Grubbing Pay areas limited by defini tion
53
Selective Removal of Trees and Snags
57
Stripping and Storing Topsoil
58
Roadway and Drainage Excavation
59
Unclassified Excavation for Structures
61
Borrow
69
Overhaul Stationyard basis
72
Special Overhaul of Borrow Cubicyardmile basis
74
Embankment
75
Foundation Fill
80
Stone or Gravel Sheathing
81
Backfill for Structures Other than Pipe Culverts
83
Bedding and Backfill for Pipe Culverts
85
Disposal of Surplus Material
88
Item Page 38 Obliteration of Old Roadways
94
Roadside Cleanup Wooded areas
96
Spot Subgrade Reinforcement
99
Subgrade Preparation of new subgrade
101
Finishing Earth Graded Roads Special finishing of new subgrade
103
Fine Grading Subgrade and Shoulders Reprepa ration of previously constructed subgrades
105
Shoulders
107
Watering
109
Selected Borrow Base Course 110 50 Selected Borrow Base Course 51 Stabilized Soil Base Course
113
52A Crushed Gravel or Crushed Stone Base Course
122
Item Page 123 Class C2 Open Graded RoadMix Surface
123
Telford Base Course
127
Sledged Stone Base Course
129
Dry Choked Stone or Slag Base Course
131
Waterbound Macadam Base Course
134
Reconstructed Stone or Gravel Base Course
140
Reconditioning of Used Roadbed Preparatory to bituminizing
143
Bituminous Macadam Base Course Asphalt or tar
145
Hot Bituminous Concrete Base Course
151
SURFACE COURSES AND PAVEMENTS 100 Selected Borrow Surface Course
163
Gravel Surface Course
166
Crushed Gravel or Crushed Stone Surface Course
171
Bituminous Prime Coat
176
Bituminous Tack Coat
179
Bituminous Preservative Treatment
181
Class A Seal Coats
189
Class A Surface Treatments
196
Class B1 Dense Graded RoadMix Surface Course
203
Class B2 Dense Graded PlantMix Surface Course
211
Class C1 Dense Graded RoadMix Surface Course
218
Course
226
Class D Type D1 Mosaic Macadam Pavement Asphalt or tar
234
Class D Type D2 Three Application Macadam Pavement Asphalt or tar
240
Class E1 Macadam Pavement PlantMix Seal Coat Asphalt or tar
247
Bituminous Coated Corrugated Sheet Metal Cul
255
Class E2 Type EM Four Application Macadam Pavement Emulsified asphalt
261
Class F Type F1 Dense Graded PlantMix
267
Class F Type F2 Open Graded PlantMix
276
STRUCTURES
281
Concrete and Stone Masonry Bridges
283
Structural Steel
332
Treated and Untreated Timber
339
Dry Rubble Masonry
348
Foundation Masonry
350
Cement Rubble Masonry
353
Class B Stone Masonry
358
Class A Stone Masonry
363
Stone Masonry in Parapets
369
Stone Masonry Facing for Concrete
371
Dimensioned Masonry
374
Brick Masonry
380
Reinforced Concrete Culvert Pipe
382
Vitrified Clay Culvert Pipe
384
Cast Iron Culvert Pipe
386
Corrugated Galvanized Sheet Metal Culvert Pipe
388
Bituminous Coated Corrugated Sheet Metal Cul vert Pipe Type 1
395
vert Pipe Type 2
401
Removing Cleaning and Stockpiling or Relaying Salvaged Culvert Pipe
404
INCIDENTAL CONSTRUCTION 7
405
Loose Riprap
415
DerrickPlaced Rock Retaining Wall
416
HandLaid Rock Embankment
418
Concrete Cribbing
419
Metal Cribbing
421
Timber and Log Cribbing
423
Underdrains
426
Drop Inlets and Catch Basins
430
Embankment Spillways
433
Grouted Rubble Gutter
435
Concrete Curb and Combination Concrete Curb and Gutter
437
Bituminous Gutter
440
Concrete Sidewalk
442
Brick Sidewalk
444
Bituminous Sidewalk
447
Waterproofing
449
Dampproofing
453
Conditioning of Subfloor For bituminous wearing course
455
MineralSurfaced Asphalt Plank
456
Bronze Bearing Plates
458
Copper Flashing
459
Blast Plates
460
RightofWay Monuments
462
Concrete Maintenance Marker Posts_
463
Timber Culvert Markers
464
Cattle Guards
465
Barbed Wire Fence
466
Gates
467
Traffic Stripe
468
Timber Guide Posts
469
Hubhigh Wood Guardrail
470
Furnishing and Placing Loamy Topsoil
472
Cutting Lifting and Placing Sod
474
Seeding
476
Furnishing Seed
478
DESIGN DETAILS
485
Replacing Topsoil 36 Tree Wells and Tree Root Protection 37 Furrow Ditches
487
81
494
85
508
88
509
91
512

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Page 28 - ... unforeseeable causes beyond the control and without the fault or negligence of the Contractor, including, but not restricted to, acts of God, or of the public enemy, acts of the Government...
Page 23 - The contractor shall hold and save the Government, its officers, agents, servants and employees, harmless from liability of any nature or kind, Including costs and expenses, for or on account of any patented or unpatented invention, article, or appliance manufactured or used In the performance of this contract, Including their use by th
Page 48 - ... measured horizontally, satisfactorily completed in accordance with the specifications. The price stipulated in this item shall include the furnishing...
Page 290 - ... previously cleaned of all foreign materials. When directed by the engineer, each load shall be covered with canvas or other suitable material of sufficient size and thickness to protect it from weather conditions.
Page 408 - IN WITNESS WHEREOF, the parties hereto have set their hands and seals the day and year first above written.
Page 226 - ... in accordance with these specifications and in conformity with the lines, grades, and typical cross-section shown on the plans.
Page 58 - Overhaul (1,000 feet (300 meters) free haul)', as the case may be, which price and payment shall constitute full compensation for all labor, equipment, tools and incidentals necessary to complete the article.
Page 10 - Officer in writing of: (1) subsurface or latent physical conditions at the site differing materially from those indicated in this contract, or (2) unknown physical conditions at the site, of an unusual nature, differing materially from those ordinarily encountered and generally recognized as inhering in work of the character provided for in this contract.
Page 92 - Steel," as called for in the bid schedule, which price and payment shall constitute full compensation for the furnishing and placing of all materials; and for all labor, equipment, tools, and incidentals necessary to complete the item.
Page 4 - The weights of castings shall be computed from the dimensions shown on the approved shop drawings, with an addition of 10 per cent for fillets and overrun.

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